Traumatic Brain Injury

A recent review by Hadanny and colleagues recommends hyperbaric oxygen therapy (HBOT) for acute moderate to severe traumatic brain injury (TBI) and selected patients with prolonged postconcussive syndrome.

This article piqued my curiosity because I trained in HBOT more than 20 years ago. As a passionate scuba diver, my motivation was to master treatment for air embolism and decompression illness. Thankfully, these diving accidents are rare. However, I used HBOT for nonhealing wounds, and its efficacy was sometimes remarkable.
 

Paradoxical results with oxygen therapy

Although it may seem self-evident that “more oxygen is better” for medical illness, this is not necessarily true. I recently interviewed Ola Didrik Saugstad, MD, who demonstrated that the traditional practice of resuscitating newborns with 100% oxygen was more toxic than resuscitation with air (which contains 21% oxygen). His counterintuitive discovery led to a lifesaving change in the international newborn resuscitation guidelines.

The Food and Drug Administration has approved HBOT for a wide variety of conditions, but some practitioners enthusiastically promote it for off-label indications. These include antiaging, autism, multiple sclerosis, and the aforementioned TBI.

More than 50 years ago, HBOT was proposed for stroke, another disorder where the brain has been deprived of oxygen. Despite obvious logic, clinical trials have been unconvincing. The FDA has not approved HBOT for stroke.
 

HBOT in practice

During HBOT, the patient breathes 100% oxygen while the whole body is pressurized within a hyperbaric chamber. The chamber’s construction allows pressures above normal sea level of 1.0 atmosphere absolute (ATA). For example, The U.S. Navy Treatment Table for decompression sickness recommends 100% oxygen at 2.8 ATA. Chambers may hold one or more patients at a time.

The frequency of therapy varies but often consists of 20-60 sessions lasting 90-120 minutes. For off-label use like TBI, patients usually pay out of pocket. Given the multiple treatments, costs can add up.
 

Inconsistent evidence and sham controls

The unwieldy 33-page evidence review by Hadanny and colleagues cites multiple studies supporting HBOT for TBI. However, many, if not all, suffer from methodological flaws. These include vague inclusion criteria, lack of a control group, small patient numbers, treatment at different times since injury, poorly defined or varying HBOT protocols, varying outcome measures, and superficial results analysis.

A sham or control arm is essential for HBOT research trials, given the potential placebo effect of placing a human being inside a large, high-tech, sealed tube for an hour or more. In some sham-controlled studies, which consisted of low-pressure oxygen (that is, 1.3 ATA as sham vs. 2.4 ATA as treatment), all groups experienced symptom improvement. The review authors argue that the low-dose HBOT sham arms were biologically active and that the improvements seen mean that both high- and low-dose HBOT is therapeutic. The alternative explanation is that the placebo effect accounted for improvement in both groups.

The late Michael Bennett, a world authority on hyperbaric and underwater medicine, doubted that conventional HBOT sham controls could genuinely have a therapeutic effect, and I agree. The upcoming HOT-POCS trial (discussed below) should answer the question more definitively.
 

Mechanisms of action and safety

Mechanisms of benefit for HBOT include increased oxygen availability and angiogenesis. Animal research suggests that it may reduce secondary cell death from TBI, through stabilization of the blood-brain barrier and inflammation reduction.

HBOT is generally safe and well tolerated. A retrospective analysis of 1.5 million outpatient hyperbaric treatments revealed that less than 1% were associated with adverse events. The most common were ear and sinus barotrauma. Because HBOT uses increased air pressure, patients must equalize their ears and sinuses. Those who cannot because of altered consciousness, anatomical defects, or congestion must undergo myringotomy or terminate therapy. Claustrophobia was the second most common adverse effect. Convulsions and tension pneumocephalus were rare.

Perhaps the most concerning risk of HBOT for patients with TBI is the potential waste of human and financial resources.
 

Desperate physicians and patients

As a neurologist who regularly treats patients with TBI, I share the review authors’ frustration regarding the limited efficacy of available treatments. However, the suboptimal efficacy of currently available therapy is insufficient justification to recommend HBOT.

With respect to chronic TBI, it is difficult to imagine how HBOT could reverse brain injury that has been present for months or years. No other therapy exists that reliably encourages neuronal regeneration or prevents the development of posttraumatic epilepsy.

Frank Conidi, MD, a board-certified sports neurologist and headache specialist, shared his thoughts via email. He agrees that HBOT may have a role in TBI, but after reviewing Hadanny and colleagues’ paper, he concluded that there is insufficient evidence for the use of HBOT in all forms of TBI. He would like to see large multicenter, well-designed studies with standardized pressures and duration and a standard definition of the various types of head injury.
 

Ongoing research

There are at least five ongoing trials on HBOT for TBI or postconcussive syndrome, including the well-designed placebo-controlled HOT-POCS study. The latter has a novel placebo gas system that addresses Hadanny and colleagues’ contention that even low-dose HBOT might be effective.

The placebo arm in HOT-POCS mimics the HBO environment but provides only 0.21 ATA of oxygen, the same as room air. The active arm provides 100% oxygen at 2.0 ATA. If patients in both arms improve, the benefit will be caused by a placebo response, not HBOT.
 

Conflict of interest

Another concern with the review is that all three authors are affiliated with Aviv Scientific. This company has an exclusive partnership with the world’s largest hyperbaric medicine and research facility, the Sagol Center at Shamir Medical Center in Be’er Ya’akov, Israel.

This conflict of interest does not a priori invalidate their conclusions. However, official HBOT guidelines from a leading organization like the Undersea and Hyperbaric Medicine Society or the American Academy of Neurology would be preferable.
 

Conclusion

There is an urgent unmet need for more effective treatments for postconcussive syndrome and chronic TBI. Despite tantalizing theoretical mechanisms as to why HBOT might promote brain healing after trauma, its efficacy remains unproven.

The review authors’ recommendations for HBOT seem premature. They are arguably a disservice to the many desperate patients and their families who will be tempted to expend valuable resources of time and money for an appealing but unproven therapy. Appropriately designed placebo-controlled studies such as HOT-POCS will help separate fact from wishful thinking.

Dr. Wilner is associate professor of neurology at University of Tennessee Health Science Center, Memphis. He reported a conflict of interest with Accordant Health Services.

A version of this article first appeared on Medscape.com.

A recent review by Hadanny and colleagues recommends hyperbaric oxygen therapy (HBOT) for acute moderate to severe traumatic brain injury (TBI) and selected patients with prolonged postconcussive syndrome.

This article piqued my curiosity because I trained in HBOT more than 20 years ago. As a passionate scuba diver, my motivation was to master treatment for air embolism and decompression illness. Thankfully, these diving accidents are rare. However, I used HBOT for nonhealing wounds, and its efficacy was sometimes remarkable.
 

Paradoxical results with oxygen therapy

Although it may seem self-evident that “more oxygen is better” for medical illness, this is not necessarily true. I recently interviewed Ola Didrik Saugstad, MD, who demonstrated that the traditional practice of resuscitating newborns with 100% oxygen was more toxic than resuscitation with air (which contains 21% oxygen). His counterintuitive discovery led to a lifesaving change in the international newborn resuscitation guidelines.

The Food and Drug Administration has approved HBOT for a wide variety of conditions, but some practitioners enthusiastically promote it for off-label indications. These include antiaging, autism, multiple sclerosis, and the aforementioned TBI.

More than 50 years ago, HBOT was proposed for stroke, another disorder where the brain has been deprived of oxygen. Despite obvious logic, clinical trials have been unconvincing. The FDA has not approved HBOT for stroke.
 

HBOT in practice

During HBOT, the patient breathes 100% oxygen while the whole body is pressurized within a hyperbaric chamber. The chamber’s construction allows pressures above normal sea level of 1.0 atmosphere absolute (ATA). For example, The U.S. Navy Treatment Table for decompression sickness recommends 100% oxygen at 2.8 ATA. Chambers may hold one or more patients at a time.

The frequency of therapy varies but often consists of 20-60 sessions lasting 90-120 minutes. For off-label use like TBI, patients usually pay out of pocket. Given the multiple treatments, costs can add up.
 

Inconsistent evidence and sham controls

The unwieldy 33-page evidence review by Hadanny and colleagues cites multiple studies supporting HBOT for TBI. However, many, if not all, suffer from methodological flaws. These include vague inclusion criteria, lack of a control group, small patient numbers, treatment at different times since injury, poorly defined or varying HBOT protocols, varying outcome measures, and superficial results analysis.

A sham or control arm is essential for HBOT research trials, given the potential placebo effect of placing a human being inside a large, high-tech, sealed tube for an hour or more. In some sham-controlled studies, which consisted of low-pressure oxygen (that is, 1.3 ATA as sham vs. 2.4 ATA as treatment), all groups experienced symptom improvement. The review authors argue that the low-dose HBOT sham arms were biologically active and that the improvements seen mean that both high- and low-dose HBOT is therapeutic. The alternative explanation is that the placebo effect accounted for improvement in both groups.

The late Michael Bennett, a world authority on hyperbaric and underwater medicine, doubted that conventional HBOT sham controls could genuinely have a therapeutic effect, and I agree. The upcoming HOT-POCS trial (discussed below) should answer the question more definitively.
 

Mechanisms of action and safety

Mechanisms of benefit for HBOT include increased oxygen availability and angiogenesis. Animal research suggests that it may reduce secondary cell death from TBI, through stabilization of the blood-brain barrier and inflammation reduction.

HBOT is generally safe and well tolerated. A retrospective analysis of 1.5 million outpatient hyperbaric treatments revealed that less than 1% were associated with adverse events. The most common were ear and sinus barotrauma. Because HBOT uses increased air pressure, patients must equalize their ears and sinuses. Those who cannot because of altered consciousness, anatomical defects, or congestion must undergo myringotomy or terminate therapy. Claustrophobia was the second most common adverse effect. Convulsions and tension pneumocephalus were rare.

Perhaps the most concerning risk of HBOT for patients with TBI is the potential waste of human and financial resources.
 

Desperate physicians and patients

As a neurologist who regularly treats patients with TBI, I share the review authors’ frustration regarding the limited efficacy of available treatments. However, the suboptimal efficacy of currently available therapy is insufficient justification to recommend HBOT.

With respect to chronic TBI, it is difficult to imagine how HBOT could reverse brain injury that has been present for months or years. No other therapy exists that reliably encourages neuronal regeneration or prevents the development of posttraumatic epilepsy.

Frank Conidi, MD, a board-certified sports neurologist and headache specialist, shared his thoughts via email. He agrees that HBOT may have a role in TBI, but after reviewing Hadanny and colleagues’ paper, he concluded that there is insufficient evidence for the use of HBOT in all forms of TBI. He would like to see large multicenter, well-designed studies with standardized pressures and duration and a standard definition of the various types of head injury.
 

Ongoing research

There are at least five ongoing trials on HBOT for TBI or postconcussive syndrome, including the well-designed placebo-controlled HOT-POCS study. The latter has a novel placebo gas system that addresses Hadanny and colleagues’ contention that even low-dose HBOT might be effective.

The placebo arm in HOT-POCS mimics the HBO environment but provides only 0.21 ATA of oxygen, the same as room air. The active arm provides 100% oxygen at 2.0 ATA. If patients in both arms improve, the benefit will be caused by a placebo response, not HBOT.
 

Conflict of interest

Another concern with the review is that all three authors are affiliated with Aviv Scientific. This company has an exclusive partnership with the world’s largest hyperbaric medicine and research facility, the Sagol Center at Shamir Medical Center in Be’er Ya’akov, Israel.

This conflict of interest does not a priori invalidate their conclusions. However, official HBOT guidelines from a leading organization like the Undersea and Hyperbaric Medicine Society or the American Academy of Neurology would be preferable.
 

Conclusion

There is an urgent unmet need for more effective treatments for postconcussive syndrome and chronic TBI. Despite tantalizing theoretical mechanisms as to why HBOT might promote brain healing after trauma, its efficacy remains unproven.

The review authors’ recommendations for HBOT seem premature. They are arguably a disservice to the many desperate patients and their families who will be tempted to expend valuable resources of time and money for an appealing but unproven therapy. Appropriately designed placebo-controlled studies such as HOT-POCS will help separate fact from wishful thinking.

Dr. Wilner is associate professor of neurology at University of Tennessee Health Science Center, Memphis. He reported a conflict of interest with Accordant Health Services.

A version of this article first appeared on Medscape.com.

A recent review by Hadanny and colleagues recommends hyperbaric oxygen therapy (HBOT) for acute moderate to severe traumatic brain injury (TBI) and selected patients with prolonged postconcussive syndrome.

This article piqued my curiosity because I trained in HBOT more than 20 years ago. As a passionate scuba diver, my motivation was to master treatment for air embolism and decompression illness. Thankfully, these diving accidents are rare. However, I used HBOT for nonhealing wounds, and its efficacy was sometimes remarkable.
 

Paradoxical results with oxygen therapy

Although it may seem self-evident that “more oxygen is better” for medical illness, this is not necessarily true. I recently interviewed Ola Didrik Saugstad, MD, who demonstrated that the traditional practice of resuscitating newborns with 100% oxygen was more toxic than resuscitation with air (which contains 21% oxygen). His counterintuitive discovery led to a lifesaving change in the international newborn resuscitation guidelines.

The Food and Drug Administration has approved HBOT for a wide variety of conditions, but some practitioners enthusiastically promote it for off-label indications. These include antiaging, autism, multiple sclerosis, and the aforementioned TBI.

More than 50 years ago, HBOT was proposed for stroke, another disorder where the brain has been deprived of oxygen. Despite obvious logic, clinical trials have been unconvincing. The FDA has not approved HBOT for stroke.
 

HBOT in practice

During HBOT, the patient breathes 100% oxygen while the whole body is pressurized within a hyperbaric chamber. The chamber’s construction allows pressures above normal sea level of 1.0 atmosphere absolute (ATA). For example, The U.S. Navy Treatment Table for decompression sickness recommends 100% oxygen at 2.8 ATA. Chambers may hold one or more patients at a time.

The frequency of therapy varies but often consists of 20-60 sessions lasting 90-120 minutes. For off-label use like TBI, patients usually pay out of pocket. Given the multiple treatments, costs can add up.
 

Inconsistent evidence and sham controls

The unwieldy 33-page evidence review by Hadanny and colleagues cites multiple studies supporting HBOT for TBI. However, many, if not all, suffer from methodological flaws. These include vague inclusion criteria, lack of a control group, small patient numbers, treatment at different times since injury, poorly defined or varying HBOT protocols, varying outcome measures, and superficial results analysis.

A sham or control arm is essential for HBOT research trials, given the potential placebo effect of placing a human being inside a large, high-tech, sealed tube for an hour or more. In some sham-controlled studies, which consisted of low-pressure oxygen (that is, 1.3 ATA as sham vs. 2.4 ATA as treatment), all groups experienced symptom improvement. The review authors argue that the low-dose HBOT sham arms were biologically active and that the improvements seen mean that both high- and low-dose HBOT is therapeutic. The alternative explanation is that the placebo effect accounted for improvement in both groups.

The late Michael Bennett, a world authority on hyperbaric and underwater medicine, doubted that conventional HBOT sham controls could genuinely have a therapeutic effect, and I agree. The upcoming HOT-POCS trial (discussed below) should answer the question more definitively.
 

Mechanisms of action and safety

Mechanisms of benefit for HBOT include increased oxygen availability and angiogenesis. Animal research suggests that it may reduce secondary cell death from TBI, through stabilization of the blood-brain barrier and inflammation reduction.

HBOT is generally safe and well tolerated. A retrospective analysis of 1.5 million outpatient hyperbaric treatments revealed that less than 1% were associated with adverse events. The most common were ear and sinus barotrauma. Because HBOT uses increased air pressure, patients must equalize their ears and sinuses. Those who cannot because of altered consciousness, anatomical defects, or congestion must undergo myringotomy or terminate therapy. Claustrophobia was the second most common adverse effect. Convulsions and tension pneumocephalus were rare.

Perhaps the most concerning risk of HBOT for patients with TBI is the potential waste of human and financial resources.
 

Desperate physicians and patients

As a neurologist who regularly treats patients with TBI, I share the review authors’ frustration regarding the limited efficacy of available treatments. However, the suboptimal efficacy of currently available therapy is insufficient justification to recommend HBOT.

With respect to chronic TBI, it is difficult to imagine how HBOT could reverse brain injury that has been present for months or years. No other therapy exists that reliably encourages neuronal regeneration or prevents the development of posttraumatic epilepsy.

Frank Conidi, MD, a board-certified sports neurologist and headache specialist, shared his thoughts via email. He agrees that HBOT may have a role in TBI, but after reviewing Hadanny and colleagues’ paper, he concluded that there is insufficient evidence for the use of HBOT in all forms of TBI. He would like to see large multicenter, well-designed studies with standardized pressures and duration and a standard definition of the various types of head injury.
 

Ongoing research

There are at least five ongoing trials on HBOT for TBI or postconcussive syndrome, including the well-designed placebo-controlled HOT-POCS study. The latter has a novel placebo gas system that addresses Hadanny and colleagues’ contention that even low-dose HBOT might be effective.

The placebo arm in HOT-POCS mimics the HBO environment but provides only 0.21 ATA of oxygen, the same as room air. The active arm provides 100% oxygen at 2.0 ATA. If patients in both arms improve, the benefit will be caused by a placebo response, not HBOT.
 

Conflict of interest

Another concern with the review is that all three authors are affiliated with Aviv Scientific. This company has an exclusive partnership with the world’s largest hyperbaric medicine and research facility, the Sagol Center at Shamir Medical Center in Be’er Ya’akov, Israel.

This conflict of interest does not a priori invalidate their conclusions. However, official HBOT guidelines from a leading organization like the Undersea and Hyperbaric Medicine Society or the American Academy of Neurology would be preferable.
 

Conclusion

There is an urgent unmet need for more effective treatments for postconcussive syndrome and chronic TBI. Despite tantalizing theoretical mechanisms as to why HBOT might promote brain healing after trauma, its efficacy remains unproven.

The review authors’ recommendations for HBOT seem premature. They are arguably a disservice to the many desperate patients and their families who will be tempted to expend valuable resources of time and money for an appealing but unproven therapy. Appropriately designed placebo-controlled studies such as HOT-POCS will help separate fact from wishful thinking.

Dr. Wilner is associate professor of neurology at University of Tennessee Health Science Center, Memphis. He reported a conflict of interest with Accordant Health Services.

A version of this article first appeared on Medscape.com.

fdp_dt_2023_cover_thumnail.jpg

In this issue: 

• Limb Loss and Prostheses
• Neurology
  • Traumatic Brain Injury
  • Alzheimer's and Dementia
  • Amyotrophic Lateral Sclerosis (ALS)
  • Parkinson's Disease
  • Migraine and Headache
• Cardiology
• Mental Health
  • Depression
  • Opioid Use Disorder
  • PTSD and Psychedelic Treatments
  • Homelessness
  • Eating Disorders
• Diabetes
• Rheumatoid Arthritis
• Respiratory illnesses
• Women's Health
  • Access to Care
  • Infertility
  • Pregnancy
• HPV and Related Cancers

fdp_dt_2023_cover_thumnail.jpg

In this issue: 

• Limb Loss and Prostheses
• Neurology
  • Traumatic Brain Injury
  • Alzheimer's and Dementia
  • Amyotrophic Lateral Sclerosis (ALS)
  • Parkinson's Disease
  • Migraine and Headache
• Cardiology
• Mental Health
  • Depression
  • Opioid Use Disorder
  • PTSD and Psychedelic Treatments
  • Homelessness
  • Eating Disorders
• Diabetes
• Rheumatoid Arthritis
• Respiratory illnesses
• Women's Health
  • Access to Care
  • Infertility
  • Pregnancy
• HPV and Related Cancers

fdp_dt_2023_cover_thumnail.jpg

In this issue: 

• Limb Loss and Prostheses
• Neurology
  • Traumatic Brain Injury
  • Alzheimer's and Dementia
  • Amyotrophic Lateral Sclerosis (ALS)
  • Parkinson's Disease
  • Migraine and Headache
• Cardiology
• Mental Health
  • Depression
  • Opioid Use Disorder
  • PTSD and Psychedelic Treatments
  • Homelessness
  • Eating Disorders
• Diabetes
• Rheumatoid Arthritis
• Respiratory illnesses
• Women's Health
  • Access to Care
  • Infertility
  • Pregnancy
• HPV and Related Cancers

Traumatic brain injury (TBI) that occurs in early adulthood is associated with cognitive decline in later life, results from a study of identical twins who served in World War II show.

The research, which included almost 9,000 individuals, showed that twins who had experienced a TBI were more likely to have lower cognitive function at age 70 versus their twin who did not experience a TBI, especially if they had lost consciousness or were older than age 24 at the time of injury. In addition, their cognitive decline occurred at a more rapid rate.

“We know that TBI increases the risk of developing Alzheimer’s disease and other dementias in later life, but we haven’t known about TBI’s effect on cognitive decline that does not quite meet the threshold for dementia,” study investigator Marianne Chanti-Ketterl, PhD, Duke University, Durham, N.C., said in an interview.

“We know that TBI increases the risk of dementia in later life, but we haven’t known if TBI affects cognitive function, causes cognitive decline that has not progressed to the point of severity with Alzheimer’s or dementia,” she added.

Being able to study the impact of TBI in monozygotic twins gives this study a unique strength, she noted.

“The important thing about this is that they are monozygotic twins, and we know they shared a lot of early life exposure, and almost 100% genetics,” Dr. Chanti-Ketterl said.

The study was published online in Neurology.

For the study, the investigators assessed 8,662 participants born between 1917 and 1927 who were part of the National Academy of Sciences National Research Council’s Twin Registry. The registry is composed of male veterans of World War II with a history of TBI, as reported by themselves or a caregiver.

The men were followed up for many years as part of the registry, but cognitive assessment only began in the 1990s. They were followed up at four different time points, at which time the Telephone Interview for Cognitive Status (TICS-m), an alternative to the Mini-Mental State Examination that must be given in person, was administered.

A total of 25% of participants had experienced concussion in their lifetime. Of this cohort, there were 589 pairs of monozygotic twins who were discordant (one twin had TBI and the other had not).

Among the monozygotic twin cohort, a history of any TBI and being older than age 24 at the time of TBI were associated with lower TICS-m scores.

A twin who experienced TBI after age 24 scored 0.59 points lower on the TICS-m at age 70 than his twin with no TBI, and cognitive function declined faster, by 0.05 points per year.
 

First study of its kind

Holly Elser, MD, PhD, MPH, an epidemiologist and resident physician in neurology at the University of Pennsylvania, Philadelphia, and coauthor of an accompanying editorial, said in an interview that the study’s twin design was a definite strength.

“There are lots of papers that have remarked on the apparent association between head injury and subsequent dementia or cognitive decline, but to my knowledge, this is one of the first, if not the first, to use a twin study design, which has the unique advantage of having better control over early life and genetic factors than would ever typically be possible in a dataset of unrelated adults,” said Dr. Elser.

She added that the study findings “strengthen our understanding of the relationship between TBI and later cognitive decline, so I think there is an etiologic value to the study.”

However, Dr. Elser noted that the composition of the study population may limit the extent to which the results apply to contemporary populations.

“This was a population of White male twins born between 1917 and 1927,” she noted. “However, does the experience of people who were in the military generalize to civilian populations? Are twins representative of the general population or are they unique in terms of their risk factors?”

It is always important to emphasize inclusivity in clinical research, and in dementia research in particular, Dr. Elser added.

“There are many examples of instances where racialized and otherwise economically marginalized groups have been excluded from analysis, which is problematic because there are already economically and socially marginalized groups who disproportionately bear the brunt of dementia.

“This is not a criticism of the authors’ work, that their data didn’t include a more diverse patient base, but I think it is an important reminder that we should always interpret study findings within the limitations of the data. It’s a reminder to be thoughtful about taking explicit steps to include more diverse groups in future research,” she said.

The study was funded by the National Institute on Aging/National Institutes of Health and the Department of Defense. Dr. Chanti-Ketterl and Dr. Elser have reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Traumatic brain injury (TBI) that occurs in early adulthood is associated with cognitive decline in later life, results from a study of identical twins who served in World War II show.

The research, which included almost 9,000 individuals, showed that twins who had experienced a TBI were more likely to have lower cognitive function at age 70 versus their twin who did not experience a TBI, especially if they had lost consciousness or were older than age 24 at the time of injury. In addition, their cognitive decline occurred at a more rapid rate.

“We know that TBI increases the risk of developing Alzheimer’s disease and other dementias in later life, but we haven’t known about TBI’s effect on cognitive decline that does not quite meet the threshold for dementia,” study investigator Marianne Chanti-Ketterl, PhD, Duke University, Durham, N.C., said in an interview.

“We know that TBI increases the risk of dementia in later life, but we haven’t known if TBI affects cognitive function, causes cognitive decline that has not progressed to the point of severity with Alzheimer’s or dementia,” she added.

Being able to study the impact of TBI in monozygotic twins gives this study a unique strength, she noted.

“The important thing about this is that they are monozygotic twins, and we know they shared a lot of early life exposure, and almost 100% genetics,” Dr. Chanti-Ketterl said.

The study was published online in Neurology.

For the study, the investigators assessed 8,662 participants born between 1917 and 1927 who were part of the National Academy of Sciences National Research Council’s Twin Registry. The registry is composed of male veterans of World War II with a history of TBI, as reported by themselves or a caregiver.

The men were followed up for many years as part of the registry, but cognitive assessment only began in the 1990s. They were followed up at four different time points, at which time the Telephone Interview for Cognitive Status (TICS-m), an alternative to the Mini-Mental State Examination that must be given in person, was administered.

A total of 25% of participants had experienced concussion in their lifetime. Of this cohort, there were 589 pairs of monozygotic twins who were discordant (one twin had TBI and the other had not).

Among the monozygotic twin cohort, a history of any TBI and being older than age 24 at the time of TBI were associated with lower TICS-m scores.

A twin who experienced TBI after age 24 scored 0.59 points lower on the TICS-m at age 70 than his twin with no TBI, and cognitive function declined faster, by 0.05 points per year.
 

First study of its kind

Holly Elser, MD, PhD, MPH, an epidemiologist and resident physician in neurology at the University of Pennsylvania, Philadelphia, and coauthor of an accompanying editorial, said in an interview that the study’s twin design was a definite strength.

“There are lots of papers that have remarked on the apparent association between head injury and subsequent dementia or cognitive decline, but to my knowledge, this is one of the first, if not the first, to use a twin study design, which has the unique advantage of having better control over early life and genetic factors than would ever typically be possible in a dataset of unrelated adults,” said Dr. Elser.

She added that the study findings “strengthen our understanding of the relationship between TBI and later cognitive decline, so I think there is an etiologic value to the study.”

However, Dr. Elser noted that the composition of the study population may limit the extent to which the results apply to contemporary populations.

“This was a population of White male twins born between 1917 and 1927,” she noted. “However, does the experience of people who were in the military generalize to civilian populations? Are twins representative of the general population or are they unique in terms of their risk factors?”

It is always important to emphasize inclusivity in clinical research, and in dementia research in particular, Dr. Elser added.

“There are many examples of instances where racialized and otherwise economically marginalized groups have been excluded from analysis, which is problematic because there are already economically and socially marginalized groups who disproportionately bear the brunt of dementia.

“This is not a criticism of the authors’ work, that their data didn’t include a more diverse patient base, but I think it is an important reminder that we should always interpret study findings within the limitations of the data. It’s a reminder to be thoughtful about taking explicit steps to include more diverse groups in future research,” she said.

The study was funded by the National Institute on Aging/National Institutes of Health and the Department of Defense. Dr. Chanti-Ketterl and Dr. Elser have reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Traumatic brain injury (TBI) that occurs in early adulthood is associated with cognitive decline in later life, results from a study of identical twins who served in World War II show.

The research, which included almost 9,000 individuals, showed that twins who had experienced a TBI were more likely to have lower cognitive function at age 70 versus their twin who did not experience a TBI, especially if they had lost consciousness or were older than age 24 at the time of injury. In addition, their cognitive decline occurred at a more rapid rate.

“We know that TBI increases the risk of developing Alzheimer’s disease and other dementias in later life, but we haven’t known about TBI’s effect on cognitive decline that does not quite meet the threshold for dementia,” study investigator Marianne Chanti-Ketterl, PhD, Duke University, Durham, N.C., said in an interview.

“We know that TBI increases the risk of dementia in later life, but we haven’t known if TBI affects cognitive function, causes cognitive decline that has not progressed to the point of severity with Alzheimer’s or dementia,” she added.

Being able to study the impact of TBI in monozygotic twins gives this study a unique strength, she noted.

“The important thing about this is that they are monozygotic twins, and we know they shared a lot of early life exposure, and almost 100% genetics,” Dr. Chanti-Ketterl said.

The study was published online in Neurology.

For the study, the investigators assessed 8,662 participants born between 1917 and 1927 who were part of the National Academy of Sciences National Research Council’s Twin Registry. The registry is composed of male veterans of World War II with a history of TBI, as reported by themselves or a caregiver.

The men were followed up for many years as part of the registry, but cognitive assessment only began in the 1990s. They were followed up at four different time points, at which time the Telephone Interview for Cognitive Status (TICS-m), an alternative to the Mini-Mental State Examination that must be given in person, was administered.

A total of 25% of participants had experienced concussion in their lifetime. Of this cohort, there were 589 pairs of monozygotic twins who were discordant (one twin had TBI and the other had not).

Among the monozygotic twin cohort, a history of any TBI and being older than age 24 at the time of TBI were associated with lower TICS-m scores.

A twin who experienced TBI after age 24 scored 0.59 points lower on the TICS-m at age 70 than his twin with no TBI, and cognitive function declined faster, by 0.05 points per year.
 

First study of its kind

Holly Elser, MD, PhD, MPH, an epidemiologist and resident physician in neurology at the University of Pennsylvania, Philadelphia, and coauthor of an accompanying editorial, said in an interview that the study’s twin design was a definite strength.

“There are lots of papers that have remarked on the apparent association between head injury and subsequent dementia or cognitive decline, but to my knowledge, this is one of the first, if not the first, to use a twin study design, which has the unique advantage of having better control over early life and genetic factors than would ever typically be possible in a dataset of unrelated adults,” said Dr. Elser.

She added that the study findings “strengthen our understanding of the relationship between TBI and later cognitive decline, so I think there is an etiologic value to the study.”

However, Dr. Elser noted that the composition of the study population may limit the extent to which the results apply to contemporary populations.

“This was a population of White male twins born between 1917 and 1927,” she noted. “However, does the experience of people who were in the military generalize to civilian populations? Are twins representative of the general population or are they unique in terms of their risk factors?”

It is always important to emphasize inclusivity in clinical research, and in dementia research in particular, Dr. Elser added.

“There are many examples of instances where racialized and otherwise economically marginalized groups have been excluded from analysis, which is problematic because there are already economically and socially marginalized groups who disproportionately bear the brunt of dementia.

“This is not a criticism of the authors’ work, that their data didn’t include a more diverse patient base, but I think it is an important reminder that we should always interpret study findings within the limitations of the data. It’s a reminder to be thoughtful about taking explicit steps to include more diverse groups in future research,” she said.

The study was funded by the National Institute on Aging/National Institutes of Health and the Department of Defense. Dr. Chanti-Ketterl and Dr. Elser have reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Among military veterans who die by suicide, those who experience a traumatic brain injury (TBI) during service take their lives 21% sooner after deployment than those without a TBI history, a new study shows.

Investigators also found that increases in new mental health diagnoses are significantly higher in soldiers with a history of TBI – in some cases, strikingly higher. For example, cases of substance use disorder rose by 100% among veterans with TBI compared to just 14.5% in those with no brain injury.

Brenner_Lisa_CO_web.jpg

“We had had pieces of these findings for a long time but to be able to lay out this longitudinal story over time is the part that’s new and important to really switch the focus to people’s whole lives and things that happen over time, both psychological and physical,” lead author Lisa Brenner, PhD, director of the Veterans Health Administration (VHA) Rocky Mountain Mental Illness Research Education and Clinical Center, Aurora, Colo., said in an interview.

“If we take that life-course view, it’s a very different way about thinking about conceptualizing exposures and conceptualizing risk and it’s a different way of thinking about treatment and prevention,” added Dr. Brenner, professor of physical medicine and rehabilitation, psychiatry, and neurology at the University of Colorado, Aurora. “I think that definitely applies to civilian populations.”

The findings were published online in JAMA Network Open.
 

Largest, longest study to date

Researchers have long suspected that TBI and a higher rate of new mental illness and a shorter time to suicide are all somehow linked. But this study examined all three components longitudinally, in what is thought to be the largest and longest study on the topic to date, including more than 860,000 people who were followed for up to a decade.

Investigators studied health data from the Substance Use and Psychological Injury Combat Study database on 860,892 U.S. Army soldiers who returned from deployment in Iraq or Afghanistan between 2008 and 2014 and were 18-24 years old at the end of that deployment. They then examined new mental health diagnoses and suicide trends over time.

Nearly 109,000 (12.6%) experienced a TBI during deployment, and 2,695 had died by suicide through the end of 2018.

New-onset diagnoses of anxiety, mood disorders, posttraumatic stress disorder, alcohol use, and substance use disorder (SUD) after deployment were all more common in soldiers who experienced PTSD while serving compared with those with no history of TBI.

There was a 67.7% increase in mood disorders in participants with TBI compared with a 37.5% increase in those without TBI. The increase in new cases of alcohol use disorder was also greater in the TBI group (a 31.9% increase vs. a 10.3% increase).

But the sharpest difference was the increase in substance use disorder among those with TBI, which rose 100% compared with a 14.5% increase in solders with no history of TBI.
 

Sharp differences in time to suicide

Death by suicide was only slightly more common in those with TBI compared with those without (0.4% vs. 0.3%, respectively). But those with a brain injury committed suicide 21.3% sooner than did those without a head injury, after the researchers controlled for sex, age, race, ethnicity, and fiscal year of return from deployment.

Time to suicide was faster in those with a TBI and two or more new mental health diagnoses and fastest among those with TBI and a new SUD diagnosis, who took their own lives 62.8% faster than did those without a TBI.

The findings offer an important message to medical professionals in many different specialties, Dr. Brenner said.

“Folks in mental health probably have a lot of patients who have brain injury in their practice, and they don’t know it and that’s an important thing to know,” she said, adding that “neurologists should screen for depression and other mental health conditions and make sure those people have evidence-based treatments for those mental health conditions while they’re addressing the TBI-related symptoms.”
 

Applicable to civilians?

“The complex interplay between TBI, its potential effects on mental health, and risk of suicide remains a vexing focus of ongoing investigations and academic inquiry,” Ross Zafonte, DO, president of Spaulding Rehabilitation Hospital Network and professor and chair of physical medicine and rehabilitation at Harvard Medical School, Boston, and colleagues, wrote in an accompanying editorial.

The study builds on earlier work, they added, and praised the study’s longitudinal design and large cohort as key to the findings. The data on increased rates of new-onset substance use disorder, which was also associated with a faster time to suicide in the TBI group, were of particular interest.

“In this work, Brenner and colleagues identified substance use disorder as a key factor in faster time to suicide for active-duty service members with a history of TBI compared with those without TBI and theorized that a multiple stress or exposure burden may enhance risk,” they wrote. “This theory is reasonable and has been postulated among individuals with medical sequelae linked to TBI.”

However, the authors caution against applying these findings in military veterans to civilians.

“While this work is critical in the military population, caution should be given to avoid direct generalization to other populations, such as athletes, for whom the linkage to suicidal ideation is less understood,” they wrote.

The study was funded by National Institute of Mental Health and Office of the Director at National Institutes of Health. Dr. Brenner has received personal fees from Wolters Kluwer, Rand, American Psychological Association, and Oxford University Press and serves as a consultant to sports leagues via her university affiliation. Dr. Zafonte reported receiving royalties from Springer/Demos; serving as a member of the editorial boards of Journal of Neurotrauma and Frontiers in Neurology and scientific advisory boards of Myomo, Nanodiagnostics, Onecare.ai, and Kisbee; and evaluating patients in the MGH Brain and Body-TRUST Program, which is funded by the National Football League Players Association.
 

A version of this article first appeared on Medscape.com.

Among military veterans who die by suicide, those who experience a traumatic brain injury (TBI) during service take their lives 21% sooner after deployment than those without a TBI history, a new study shows.

Investigators also found that increases in new mental health diagnoses are significantly higher in soldiers with a history of TBI – in some cases, strikingly higher. For example, cases of substance use disorder rose by 100% among veterans with TBI compared to just 14.5% in those with no brain injury.

Brenner_Lisa_CO_web.jpg

“We had had pieces of these findings for a long time but to be able to lay out this longitudinal story over time is the part that’s new and important to really switch the focus to people’s whole lives and things that happen over time, both psychological and physical,” lead author Lisa Brenner, PhD, director of the Veterans Health Administration (VHA) Rocky Mountain Mental Illness Research Education and Clinical Center, Aurora, Colo., said in an interview.

“If we take that life-course view, it’s a very different way about thinking about conceptualizing exposures and conceptualizing risk and it’s a different way of thinking about treatment and prevention,” added Dr. Brenner, professor of physical medicine and rehabilitation, psychiatry, and neurology at the University of Colorado, Aurora. “I think that definitely applies to civilian populations.”

The findings were published online in JAMA Network Open.
 

Largest, longest study to date

Researchers have long suspected that TBI and a higher rate of new mental illness and a shorter time to suicide are all somehow linked. But this study examined all three components longitudinally, in what is thought to be the largest and longest study on the topic to date, including more than 860,000 people who were followed for up to a decade.

Investigators studied health data from the Substance Use and Psychological Injury Combat Study database on 860,892 U.S. Army soldiers who returned from deployment in Iraq or Afghanistan between 2008 and 2014 and were 18-24 years old at the end of that deployment. They then examined new mental health diagnoses and suicide trends over time.

Nearly 109,000 (12.6%) experienced a TBI during deployment, and 2,695 had died by suicide through the end of 2018.

New-onset diagnoses of anxiety, mood disorders, posttraumatic stress disorder, alcohol use, and substance use disorder (SUD) after deployment were all more common in soldiers who experienced PTSD while serving compared with those with no history of TBI.

There was a 67.7% increase in mood disorders in participants with TBI compared with a 37.5% increase in those without TBI. The increase in new cases of alcohol use disorder was also greater in the TBI group (a 31.9% increase vs. a 10.3% increase).

But the sharpest difference was the increase in substance use disorder among those with TBI, which rose 100% compared with a 14.5% increase in solders with no history of TBI.
 

Sharp differences in time to suicide

Death by suicide was only slightly more common in those with TBI compared with those without (0.4% vs. 0.3%, respectively). But those with a brain injury committed suicide 21.3% sooner than did those without a head injury, after the researchers controlled for sex, age, race, ethnicity, and fiscal year of return from deployment.

Time to suicide was faster in those with a TBI and two or more new mental health diagnoses and fastest among those with TBI and a new SUD diagnosis, who took their own lives 62.8% faster than did those without a TBI.

The findings offer an important message to medical professionals in many different specialties, Dr. Brenner said.

“Folks in mental health probably have a lot of patients who have brain injury in their practice, and they don’t know it and that’s an important thing to know,” she said, adding that “neurologists should screen for depression and other mental health conditions and make sure those people have evidence-based treatments for those mental health conditions while they’re addressing the TBI-related symptoms.”
 

Applicable to civilians?

“The complex interplay between TBI, its potential effects on mental health, and risk of suicide remains a vexing focus of ongoing investigations and academic inquiry,” Ross Zafonte, DO, president of Spaulding Rehabilitation Hospital Network and professor and chair of physical medicine and rehabilitation at Harvard Medical School, Boston, and colleagues, wrote in an accompanying editorial.

The study builds on earlier work, they added, and praised the study’s longitudinal design and large cohort as key to the findings. The data on increased rates of new-onset substance use disorder, which was also associated with a faster time to suicide in the TBI group, were of particular interest.

“In this work, Brenner and colleagues identified substance use disorder as a key factor in faster time to suicide for active-duty service members with a history of TBI compared with those without TBI and theorized that a multiple stress or exposure burden may enhance risk,” they wrote. “This theory is reasonable and has been postulated among individuals with medical sequelae linked to TBI.”

However, the authors caution against applying these findings in military veterans to civilians.

“While this work is critical in the military population, caution should be given to avoid direct generalization to other populations, such as athletes, for whom the linkage to suicidal ideation is less understood,” they wrote.

The study was funded by National Institute of Mental Health and Office of the Director at National Institutes of Health. Dr. Brenner has received personal fees from Wolters Kluwer, Rand, American Psychological Association, and Oxford University Press and serves as a consultant to sports leagues via her university affiliation. Dr. Zafonte reported receiving royalties from Springer/Demos; serving as a member of the editorial boards of Journal of Neurotrauma and Frontiers in Neurology and scientific advisory boards of Myomo, Nanodiagnostics, Onecare.ai, and Kisbee; and evaluating patients in the MGH Brain and Body-TRUST Program, which is funded by the National Football League Players Association.
 

A version of this article first appeared on Medscape.com.

Among military veterans who die by suicide, those who experience a traumatic brain injury (TBI) during service take their lives 21% sooner after deployment than those without a TBI history, a new study shows.

Investigators also found that increases in new mental health diagnoses are significantly higher in soldiers with a history of TBI – in some cases, strikingly higher. For example, cases of substance use disorder rose by 100% among veterans with TBI compared to just 14.5% in those with no brain injury.

Brenner_Lisa_CO_web.jpg

“We had had pieces of these findings for a long time but to be able to lay out this longitudinal story over time is the part that’s new and important to really switch the focus to people’s whole lives and things that happen over time, both psychological and physical,” lead author Lisa Brenner, PhD, director of the Veterans Health Administration (VHA) Rocky Mountain Mental Illness Research Education and Clinical Center, Aurora, Colo., said in an interview.

“If we take that life-course view, it’s a very different way about thinking about conceptualizing exposures and conceptualizing risk and it’s a different way of thinking about treatment and prevention,” added Dr. Brenner, professor of physical medicine and rehabilitation, psychiatry, and neurology at the University of Colorado, Aurora. “I think that definitely applies to civilian populations.”

The findings were published online in JAMA Network Open.
 

Largest, longest study to date

Researchers have long suspected that TBI and a higher rate of new mental illness and a shorter time to suicide are all somehow linked. But this study examined all three components longitudinally, in what is thought to be the largest and longest study on the topic to date, including more than 860,000 people who were followed for up to a decade.

Investigators studied health data from the Substance Use and Psychological Injury Combat Study database on 860,892 U.S. Army soldiers who returned from deployment in Iraq or Afghanistan between 2008 and 2014 and were 18-24 years old at the end of that deployment. They then examined new mental health diagnoses and suicide trends over time.

Nearly 109,000 (12.6%) experienced a TBI during deployment, and 2,695 had died by suicide through the end of 2018.

New-onset diagnoses of anxiety, mood disorders, posttraumatic stress disorder, alcohol use, and substance use disorder (SUD) after deployment were all more common in soldiers who experienced PTSD while serving compared with those with no history of TBI.

There was a 67.7% increase in mood disorders in participants with TBI compared with a 37.5% increase in those without TBI. The increase in new cases of alcohol use disorder was also greater in the TBI group (a 31.9% increase vs. a 10.3% increase).

But the sharpest difference was the increase in substance use disorder among those with TBI, which rose 100% compared with a 14.5% increase in solders with no history of TBI.
 

Sharp differences in time to suicide

Death by suicide was only slightly more common in those with TBI compared with those without (0.4% vs. 0.3%, respectively). But those with a brain injury committed suicide 21.3% sooner than did those without a head injury, after the researchers controlled for sex, age, race, ethnicity, and fiscal year of return from deployment.

Time to suicide was faster in those with a TBI and two or more new mental health diagnoses and fastest among those with TBI and a new SUD diagnosis, who took their own lives 62.8% faster than did those without a TBI.

The findings offer an important message to medical professionals in many different specialties, Dr. Brenner said.

“Folks in mental health probably have a lot of patients who have brain injury in their practice, and they don’t know it and that’s an important thing to know,” she said, adding that “neurologists should screen for depression and other mental health conditions and make sure those people have evidence-based treatments for those mental health conditions while they’re addressing the TBI-related symptoms.”
 

Applicable to civilians?

“The complex interplay between TBI, its potential effects on mental health, and risk of suicide remains a vexing focus of ongoing investigations and academic inquiry,” Ross Zafonte, DO, president of Spaulding Rehabilitation Hospital Network and professor and chair of physical medicine and rehabilitation at Harvard Medical School, Boston, and colleagues, wrote in an accompanying editorial.

The study builds on earlier work, they added, and praised the study’s longitudinal design and large cohort as key to the findings. The data on increased rates of new-onset substance use disorder, which was also associated with a faster time to suicide in the TBI group, were of particular interest.

“In this work, Brenner and colleagues identified substance use disorder as a key factor in faster time to suicide for active-duty service members with a history of TBI compared with those without TBI and theorized that a multiple stress or exposure burden may enhance risk,” they wrote. “This theory is reasonable and has been postulated among individuals with medical sequelae linked to TBI.”

However, the authors caution against applying these findings in military veterans to civilians.

“While this work is critical in the military population, caution should be given to avoid direct generalization to other populations, such as athletes, for whom the linkage to suicidal ideation is less understood,” they wrote.

The study was funded by National Institute of Mental Health and Office of the Director at National Institutes of Health. Dr. Brenner has received personal fees from Wolters Kluwer, Rand, American Psychological Association, and Oxford University Press and serves as a consultant to sports leagues via her university affiliation. Dr. Zafonte reported receiving royalties from Springer/Demos; serving as a member of the editorial boards of Journal of Neurotrauma and Frontiers in Neurology and scientific advisory boards of Myomo, Nanodiagnostics, Onecare.ai, and Kisbee; and evaluating patients in the MGH Brain and Body-TRUST Program, which is funded by the National Football League Players Association.
 

A version of this article first appeared on Medscape.com.

Children’s intelligence quotient scores are not significantly different in the first months after concussion, compared with before concussion, data suggest.

In a multicenter study of almost 900 children with concussion or orthopedic injury, differences between groups in full-scale IQ (Cohen’s d = 0.13) and matrix reasoning scores (d = 0.16) were small.

“We draw the inference that IQ scores are unchanged, in the sense that they’re not different from [those of] kids with other types of injuries that don’t involve the brain,” said study author Keith Owen Yeates, PhD, Ronald and Irene Ward Chair in Pediatric Brain Injury and a professor of psychology at the University of Calgary (Alta.).

The study was published in Pediatrics.
 

A representative sample

The investigators analyzed data from two prospective cohort studies of children who were treated for concussion or mild orthopedic injury at two hospitals in the United States and five in Canada. Participants were aged 8-17 years and were recruited within 24 hours of the index event. Patients in the United States completed IQ and performance validity testing at 3-18 days after injury. Patients in Canada did so at 3 months after injury. The study used the short-form IQ test. The investigators included 866 children in their analysis.

Using linear modeling, Bayesian analysis, and multigroup factor analysis, the researchers found “very small group differences” in full-scale IQ scores between the two groups. Mean IQ was 104.95 for the concussion group and 106.08 for the orthopedic-injury group. Matrix reasoning scores were 52.28 and 53.81 for the concussion and orthopedic-injury groups, respectively.

Vocabulary scores did not differ between the two groups (53.25 for the concussion group and 53.27 for the orthopedic-injury group).

The study population is “pretty representative” from a demographic perspective, although it was predominantly White, said Dr. Yeates. “On the other hand, we did look at socioeconomic status, and that didn’t seem to alter the findings at all.”

The sample size is one of the study’s strengths, said Dr. Yeates. “Having 866 kids is far larger, I think, than just about any other study out there.” Drawing from seven children’s hospitals in North America is another strength. “Previous studies, in addition to having smaller samples, were from a single site and often recruited from a clinic population, not a representative group for a general population of kids with concussion.”

The findings must be interpreted precisely, however. “We don’t have actual preinjury data, so the more precise way of describing the findings is to say they’re not different from kids who are very similar to them demographically, have the same risk factors for injuries, and had a similar experience of a traumatic injury,” said Dr. Yeates. “The IQ scores for both groups are smack dab in the average range.”

Overall, the results are encouraging. “There’s been a lot of bad news in the media and in the science about concussion that worries patients, so it’s nice to be able to provide a little bit of balance,” said Dr. Yeates. “The message I give parents is that most kids recover within 2-4 weeks, and we’re much better now at predicting who’s going to [recover] and who isn’t, and that helps, too, so that we can focus our intervention on kids who are most at risk.”

Some children will have persisting symptoms, but evidence-based treatments are lacking. “I think that’ll be a really important direction for the future,” said Dr. Yeates.
 

Graduated return

Commenting on the findings, Michael Esser, MD, a pediatric neurologist at Alberta Children’s Hospital, Calgary, and an associate professor in pediatrics at the University of Calgary, said that they can help allay parents’ concerns about concussions. “It can also be of help for clinicians who want to have evidence to reassure families and promote a graduated return to activities. In particular, the study would support the philosophy of a graduated return to school or work, after a brief period of rest, following concussion.” Dr. Esser did not participate in the study.

The research is also noteworthy because it acknowledges that the differences in the design and methodology used in prior studies may explain the apparent disagreement over how concussion may influence cognitive function.

“This is an important message,” said Dr. Esser. “Families struggle with determining the merit of a lot of information due to the myriad of social media comments about concussion and the risk for cognitive impairment. Therefore, it is important that conclusions with a significant implication are evaluated with a variety of approaches.”

The study received funding from the National Institutes of Health and the Canadian Institutes for Health Research. Dr. Yeates disclosed relationships with the American Psychological Association, Guilford Press, and Cambridge University Press. He has received grant funding from the Canadian Institutes of Health Research, the National Institutes of Health, Brain Canada Foundation, and the National Football League Scientific Advisory Board. He also has relationships with the National Institute for Child Health and Human Development, National Institute of Neurologic Disorders and Stroke, National Pediatric Rehabilitation Resource Center, Center for Pediatric Rehabilitation, and Virginia Tech University. Dr. Esser had no relevant relationships to disclose.

A version of this article appeared on Medscape.com.

Children’s intelligence quotient scores are not significantly different in the first months after concussion, compared with before concussion, data suggest.

In a multicenter study of almost 900 children with concussion or orthopedic injury, differences between groups in full-scale IQ (Cohen’s d = 0.13) and matrix reasoning scores (d = 0.16) were small.

“We draw the inference that IQ scores are unchanged, in the sense that they’re not different from [those of] kids with other types of injuries that don’t involve the brain,” said study author Keith Owen Yeates, PhD, Ronald and Irene Ward Chair in Pediatric Brain Injury and a professor of psychology at the University of Calgary (Alta.).

The study was published in Pediatrics.
 

A representative sample

The investigators analyzed data from two prospective cohort studies of children who were treated for concussion or mild orthopedic injury at two hospitals in the United States and five in Canada. Participants were aged 8-17 years and were recruited within 24 hours of the index event. Patients in the United States completed IQ and performance validity testing at 3-18 days after injury. Patients in Canada did so at 3 months after injury. The study used the short-form IQ test. The investigators included 866 children in their analysis.

Using linear modeling, Bayesian analysis, and multigroup factor analysis, the researchers found “very small group differences” in full-scale IQ scores between the two groups. Mean IQ was 104.95 for the concussion group and 106.08 for the orthopedic-injury group. Matrix reasoning scores were 52.28 and 53.81 for the concussion and orthopedic-injury groups, respectively.

Vocabulary scores did not differ between the two groups (53.25 for the concussion group and 53.27 for the orthopedic-injury group).

The study population is “pretty representative” from a demographic perspective, although it was predominantly White, said Dr. Yeates. “On the other hand, we did look at socioeconomic status, and that didn’t seem to alter the findings at all.”

The sample size is one of the study’s strengths, said Dr. Yeates. “Having 866 kids is far larger, I think, than just about any other study out there.” Drawing from seven children’s hospitals in North America is another strength. “Previous studies, in addition to having smaller samples, were from a single site and often recruited from a clinic population, not a representative group for a general population of kids with concussion.”

The findings must be interpreted precisely, however. “We don’t have actual preinjury data, so the more precise way of describing the findings is to say they’re not different from kids who are very similar to them demographically, have the same risk factors for injuries, and had a similar experience of a traumatic injury,” said Dr. Yeates. “The IQ scores for both groups are smack dab in the average range.”

Overall, the results are encouraging. “There’s been a lot of bad news in the media and in the science about concussion that worries patients, so it’s nice to be able to provide a little bit of balance,” said Dr. Yeates. “The message I give parents is that most kids recover within 2-4 weeks, and we’re much better now at predicting who’s going to [recover] and who isn’t, and that helps, too, so that we can focus our intervention on kids who are most at risk.”

Some children will have persisting symptoms, but evidence-based treatments are lacking. “I think that’ll be a really important direction for the future,” said Dr. Yeates.
 

Graduated return

Commenting on the findings, Michael Esser, MD, a pediatric neurologist at Alberta Children’s Hospital, Calgary, and an associate professor in pediatrics at the University of Calgary, said that they can help allay parents’ concerns about concussions. “It can also be of help for clinicians who want to have evidence to reassure families and promote a graduated return to activities. In particular, the study would support the philosophy of a graduated return to school or work, after a brief period of rest, following concussion.” Dr. Esser did not participate in the study.

The research is also noteworthy because it acknowledges that the differences in the design and methodology used in prior studies may explain the apparent disagreement over how concussion may influence cognitive function.

“This is an important message,” said Dr. Esser. “Families struggle with determining the merit of a lot of information due to the myriad of social media comments about concussion and the risk for cognitive impairment. Therefore, it is important that conclusions with a significant implication are evaluated with a variety of approaches.”

The study received funding from the National Institutes of Health and the Canadian Institutes for Health Research. Dr. Yeates disclosed relationships with the American Psychological Association, Guilford Press, and Cambridge University Press. He has received grant funding from the Canadian Institutes of Health Research, the National Institutes of Health, Brain Canada Foundation, and the National Football League Scientific Advisory Board. He also has relationships with the National Institute for Child Health and Human Development, National Institute of Neurologic Disorders and Stroke, National Pediatric Rehabilitation Resource Center, Center for Pediatric Rehabilitation, and Virginia Tech University. Dr. Esser had no relevant relationships to disclose.

A version of this article appeared on Medscape.com.

Children’s intelligence quotient scores are not significantly different in the first months after concussion, compared with before concussion, data suggest.

In a multicenter study of almost 900 children with concussion or orthopedic injury, differences between groups in full-scale IQ (Cohen’s d = 0.13) and matrix reasoning scores (d = 0.16) were small.

“We draw the inference that IQ scores are unchanged, in the sense that they’re not different from [those of] kids with other types of injuries that don’t involve the brain,” said study author Keith Owen Yeates, PhD, Ronald and Irene Ward Chair in Pediatric Brain Injury and a professor of psychology at the University of Calgary (Alta.).

The study was published in Pediatrics.
 

A representative sample

The investigators analyzed data from two prospective cohort studies of children who were treated for concussion or mild orthopedic injury at two hospitals in the United States and five in Canada. Participants were aged 8-17 years and were recruited within 24 hours of the index event. Patients in the United States completed IQ and performance validity testing at 3-18 days after injury. Patients in Canada did so at 3 months after injury. The study used the short-form IQ test. The investigators included 866 children in their analysis.

Using linear modeling, Bayesian analysis, and multigroup factor analysis, the researchers found “very small group differences” in full-scale IQ scores between the two groups. Mean IQ was 104.95 for the concussion group and 106.08 for the orthopedic-injury group. Matrix reasoning scores were 52.28 and 53.81 for the concussion and orthopedic-injury groups, respectively.

Vocabulary scores did not differ between the two groups (53.25 for the concussion group and 53.27 for the orthopedic-injury group).

The study population is “pretty representative” from a demographic perspective, although it was predominantly White, said Dr. Yeates. “On the other hand, we did look at socioeconomic status, and that didn’t seem to alter the findings at all.”

The sample size is one of the study’s strengths, said Dr. Yeates. “Having 866 kids is far larger, I think, than just about any other study out there.” Drawing from seven children’s hospitals in North America is another strength. “Previous studies, in addition to having smaller samples, were from a single site and often recruited from a clinic population, not a representative group for a general population of kids with concussion.”

The findings must be interpreted precisely, however. “We don’t have actual preinjury data, so the more precise way of describing the findings is to say they’re not different from kids who are very similar to them demographically, have the same risk factors for injuries, and had a similar experience of a traumatic injury,” said Dr. Yeates. “The IQ scores for both groups are smack dab in the average range.”

Overall, the results are encouraging. “There’s been a lot of bad news in the media and in the science about concussion that worries patients, so it’s nice to be able to provide a little bit of balance,” said Dr. Yeates. “The message I give parents is that most kids recover within 2-4 weeks, and we’re much better now at predicting who’s going to [recover] and who isn’t, and that helps, too, so that we can focus our intervention on kids who are most at risk.”

Some children will have persisting symptoms, but evidence-based treatments are lacking. “I think that’ll be a really important direction for the future,” said Dr. Yeates.
 

Graduated return

Commenting on the findings, Michael Esser, MD, a pediatric neurologist at Alberta Children’s Hospital, Calgary, and an associate professor in pediatrics at the University of Calgary, said that they can help allay parents’ concerns about concussions. “It can also be of help for clinicians who want to have evidence to reassure families and promote a graduated return to activities. In particular, the study would support the philosophy of a graduated return to school or work, after a brief period of rest, following concussion.” Dr. Esser did not participate in the study.

The research is also noteworthy because it acknowledges that the differences in the design and methodology used in prior studies may explain the apparent disagreement over how concussion may influence cognitive function.

“This is an important message,” said Dr. Esser. “Families struggle with determining the merit of a lot of information due to the myriad of social media comments about concussion and the risk for cognitive impairment. Therefore, it is important that conclusions with a significant implication are evaluated with a variety of approaches.”

The study received funding from the National Institutes of Health and the Canadian Institutes for Health Research. Dr. Yeates disclosed relationships with the American Psychological Association, Guilford Press, and Cambridge University Press. He has received grant funding from the Canadian Institutes of Health Research, the National Institutes of Health, Brain Canada Foundation, and the National Football League Scientific Advisory Board. He also has relationships with the National Institute for Child Health and Human Development, National Institute of Neurologic Disorders and Stroke, National Pediatric Rehabilitation Resource Center, Center for Pediatric Rehabilitation, and Virginia Tech University. Dr. Esser had no relevant relationships to disclose.

A version of this article appeared on Medscape.com.

A 12-week multidimensional “brain fitness program” provides multiple benefits for individuals with attention-deficit/hyperactive disorder, postconcussion syndrome (PCS), and memory loss, new research shows.

The program, which consists of targeted cognitive training and EEG-based neurofeedback, coupled with meditation and diet/lifestyle coaching, led to improvements in memory, attention, mood, alertness, and sleep.

The program promotes “neuroplasticity and was equally effective for patients with all three conditions,” program creator Majid Fotuhi, MD, PhD, said in an interview.

Patients with mild to moderate cognitive symptoms often see “remarkable” results within 3 months of consistently following the program, said Dr. Fotuhi, adjunct professor of neuroscience at George Washington University, Washington, and medical director of NeuroGrow Brain Fitness Center, McLean, Va.

“It actually makes intuitive sense that a healthier and stronger brain would function better and that patients of all ages with various cognitive or emotional symptoms would all benefit from improving the biology of their brain,” Dr. Fotuhi added.

The study was published online in the Journal of Alzheimer’s Disease Reports.
 

Personalized program

The findings are based on 223 children and adults who completed the 12-week NeuroGrow Brain Fitness Program (NeuroGrow BFP), including 71 with ADHD, 88 with PCS, and 64 with memory loss, defined as diagnosed mild cognitive impairment or subjective cognitive decline.

As part of the program, participants undergo a complete neurocognitive evaluation, including tests for verbal memory, complex attention, processing speed, executive functioning, and the Neurocognitive Index.

They also complete questionnaires regarding sleep, mood, diet, exercise, and anxiety/depression, and they undergo quantitative EEG at the beginning and end of the program.

A comparison of before and after neurocognitive test scores showed that all three patient subgroups experienced statistically significant improvements on most measures, the study team reports.

After completing the program, 60%-90% of patients scored higher on cognitive tests and reported having fewer cognitive, sleep, and emotional symptoms.

In all subgroups, the most significant improvement was observed in executive functioning.

“These preliminary findings appear to show that multimodal interventions which are known to increase neuroplasticity in the brain, when personalized, can have benefits for patients with cognitive symptoms from a variety of neurological conditions,” the investigators wrote.

The study’s strengths include a large, community-based sample of patients of different ages who had disruptive symptoms and abnormalities as determined using objective cognitive tests whose progress was monitored by objective and subjective measures.

The chief limitation is the lack of a control or placebo group.

“Though it is difficult to find a comparable group of patients with the exact same profile of cognitive deficits and brain-related symptoms, studying a larger group of patients – and comparing them with a wait-list group – may make it possible to do a more definitive assessment of the NeuroGrow BFP,” the researchers noted.

Dr. Fotuhi said the “secret to the success” of the program is that it involves a full assessment of all cognitive and neurobehavioral symptoms for each patient. This allows for individualized and targeted interventions for specific concerns and symptoms.

He said there is a need to recognize that patients who present to a neurology practice with a single complaint, such as a problem with memory or attention, often have other problems, such as anxiety/depression, stress, insomnia, sedentary lifestyle, obesity, diabetes, sleep apnea, or alcohol overuse.

“Each of these factors can affect their cognitive abilities and need a multimodal set of interventions in order to see full resolution of their cognitive symptoms,” Dr. Fotuhi said.

He has created a series of educational videos to demonstrate the program’s benefits.

The self-pay cost for the NeuroGrow BFP assessment and treatment sessions is approximately $7,000.

Dr. Fotuhi said all of the interventions included in the program are readily available at low cost.

He suggested that health care professionals who lack time or staff for conducting a comprehensive neurocognitive assessment for their patients can provide them with a copy of the Brain Health Index.

“Patients can then be instructed to work on the individual components of their brain health on their own – and measure their brain health index on a weekly basis,” Dr. Fotuhi said. “Private practices or academic centers can use the detailed information I have provided in my paper to develop their own brain fitness program.”
 

Not ready for prime time

Commenting on the study, Percy Griffin, PhD, director of scientific engagement for the Alzheimer’s Association, noted that “nonpharmacologic interventions can help alleviate some of the symptoms associated with dementia.

“The current study investigates nonpharmacologic interventions in a small number of patients with ADHD, postconcussion syndrome, or memory loss. The researchers found improvements on most measures following the brain rehabilitation program.

“While this is interesting, more work is needed in larger, more diverse cohorts before these programs can be applied broadly. Nonpharmacologic interventions are a helpful tool that need to be studied further in future studies,” Dr. Griffin added.

Funding for the study was provided by the NeuroGrow Brain Fitness Center. Dr. Fotuhi, the owner of NeuroGrow, was involved in data analysis, writing, editing, approval, and decision to publish. Dr. Griffin reported no disclosures.

A version of this article appeared on Medscape.com.

A 12-week multidimensional “brain fitness program” provides multiple benefits for individuals with attention-deficit/hyperactive disorder, postconcussion syndrome (PCS), and memory loss, new research shows.

The program, which consists of targeted cognitive training and EEG-based neurofeedback, coupled with meditation and diet/lifestyle coaching, led to improvements in memory, attention, mood, alertness, and sleep.

The program promotes “neuroplasticity and was equally effective for patients with all three conditions,” program creator Majid Fotuhi, MD, PhD, said in an interview.

Patients with mild to moderate cognitive symptoms often see “remarkable” results within 3 months of consistently following the program, said Dr. Fotuhi, adjunct professor of neuroscience at George Washington University, Washington, and medical director of NeuroGrow Brain Fitness Center, McLean, Va.

“It actually makes intuitive sense that a healthier and stronger brain would function better and that patients of all ages with various cognitive or emotional symptoms would all benefit from improving the biology of their brain,” Dr. Fotuhi added.

The study was published online in the Journal of Alzheimer’s Disease Reports.
 

Personalized program

The findings are based on 223 children and adults who completed the 12-week NeuroGrow Brain Fitness Program (NeuroGrow BFP), including 71 with ADHD, 88 with PCS, and 64 with memory loss, defined as diagnosed mild cognitive impairment or subjective cognitive decline.

As part of the program, participants undergo a complete neurocognitive evaluation, including tests for verbal memory, complex attention, processing speed, executive functioning, and the Neurocognitive Index.

They also complete questionnaires regarding sleep, mood, diet, exercise, and anxiety/depression, and they undergo quantitative EEG at the beginning and end of the program.

A comparison of before and after neurocognitive test scores showed that all three patient subgroups experienced statistically significant improvements on most measures, the study team reports.

After completing the program, 60%-90% of patients scored higher on cognitive tests and reported having fewer cognitive, sleep, and emotional symptoms.

In all subgroups, the most significant improvement was observed in executive functioning.

“These preliminary findings appear to show that multimodal interventions which are known to increase neuroplasticity in the brain, when personalized, can have benefits for patients with cognitive symptoms from a variety of neurological conditions,” the investigators wrote.

The study’s strengths include a large, community-based sample of patients of different ages who had disruptive symptoms and abnormalities as determined using objective cognitive tests whose progress was monitored by objective and subjective measures.

The chief limitation is the lack of a control or placebo group.

“Though it is difficult to find a comparable group of patients with the exact same profile of cognitive deficits and brain-related symptoms, studying a larger group of patients – and comparing them with a wait-list group – may make it possible to do a more definitive assessment of the NeuroGrow BFP,” the researchers noted.

Dr. Fotuhi said the “secret to the success” of the program is that it involves a full assessment of all cognitive and neurobehavioral symptoms for each patient. This allows for individualized and targeted interventions for specific concerns and symptoms.

He said there is a need to recognize that patients who present to a neurology practice with a single complaint, such as a problem with memory or attention, often have other problems, such as anxiety/depression, stress, insomnia, sedentary lifestyle, obesity, diabetes, sleep apnea, or alcohol overuse.

“Each of these factors can affect their cognitive abilities and need a multimodal set of interventions in order to see full resolution of their cognitive symptoms,” Dr. Fotuhi said.

He has created a series of educational videos to demonstrate the program’s benefits.

The self-pay cost for the NeuroGrow BFP assessment and treatment sessions is approximately $7,000.

Dr. Fotuhi said all of the interventions included in the program are readily available at low cost.

He suggested that health care professionals who lack time or staff for conducting a comprehensive neurocognitive assessment for their patients can provide them with a copy of the Brain Health Index.

“Patients can then be instructed to work on the individual components of their brain health on their own – and measure their brain health index on a weekly basis,” Dr. Fotuhi said. “Private practices or academic centers can use the detailed information I have provided in my paper to develop their own brain fitness program.”
 

Not ready for prime time

Commenting on the study, Percy Griffin, PhD, director of scientific engagement for the Alzheimer’s Association, noted that “nonpharmacologic interventions can help alleviate some of the symptoms associated with dementia.

“The current study investigates nonpharmacologic interventions in a small number of patients with ADHD, postconcussion syndrome, or memory loss. The researchers found improvements on most measures following the brain rehabilitation program.

“While this is interesting, more work is needed in larger, more diverse cohorts before these programs can be applied broadly. Nonpharmacologic interventions are a helpful tool that need to be studied further in future studies,” Dr. Griffin added.

Funding for the study was provided by the NeuroGrow Brain Fitness Center. Dr. Fotuhi, the owner of NeuroGrow, was involved in data analysis, writing, editing, approval, and decision to publish. Dr. Griffin reported no disclosures.

A version of this article appeared on Medscape.com.

A 12-week multidimensional “brain fitness program” provides multiple benefits for individuals with attention-deficit/hyperactive disorder, postconcussion syndrome (PCS), and memory loss, new research shows.

The program, which consists of targeted cognitive training and EEG-based neurofeedback, coupled with meditation and diet/lifestyle coaching, led to improvements in memory, attention, mood, alertness, and sleep.

The program promotes “neuroplasticity and was equally effective for patients with all three conditions,” program creator Majid Fotuhi, MD, PhD, said in an interview.

Patients with mild to moderate cognitive symptoms often see “remarkable” results within 3 months of consistently following the program, said Dr. Fotuhi, adjunct professor of neuroscience at George Washington University, Washington, and medical director of NeuroGrow Brain Fitness Center, McLean, Va.

“It actually makes intuitive sense that a healthier and stronger brain would function better and that patients of all ages with various cognitive or emotional symptoms would all benefit from improving the biology of their brain,” Dr. Fotuhi added.

The study was published online in the Journal of Alzheimer’s Disease Reports.
 

Personalized program

The findings are based on 223 children and adults who completed the 12-week NeuroGrow Brain Fitness Program (NeuroGrow BFP), including 71 with ADHD, 88 with PCS, and 64 with memory loss, defined as diagnosed mild cognitive impairment or subjective cognitive decline.

As part of the program, participants undergo a complete neurocognitive evaluation, including tests for verbal memory, complex attention, processing speed, executive functioning, and the Neurocognitive Index.

They also complete questionnaires regarding sleep, mood, diet, exercise, and anxiety/depression, and they undergo quantitative EEG at the beginning and end of the program.

A comparison of before and after neurocognitive test scores showed that all three patient subgroups experienced statistically significant improvements on most measures, the study team reports.

After completing the program, 60%-90% of patients scored higher on cognitive tests and reported having fewer cognitive, sleep, and emotional symptoms.

In all subgroups, the most significant improvement was observed in executive functioning.

“These preliminary findings appear to show that multimodal interventions which are known to increase neuroplasticity in the brain, when personalized, can have benefits for patients with cognitive symptoms from a variety of neurological conditions,” the investigators wrote.

The study’s strengths include a large, community-based sample of patients of different ages who had disruptive symptoms and abnormalities as determined using objective cognitive tests whose progress was monitored by objective and subjective measures.

The chief limitation is the lack of a control or placebo group.

“Though it is difficult to find a comparable group of patients with the exact same profile of cognitive deficits and brain-related symptoms, studying a larger group of patients – and comparing them with a wait-list group – may make it possible to do a more definitive assessment of the NeuroGrow BFP,” the researchers noted.

Dr. Fotuhi said the “secret to the success” of the program is that it involves a full assessment of all cognitive and neurobehavioral symptoms for each patient. This allows for individualized and targeted interventions for specific concerns and symptoms.

He said there is a need to recognize that patients who present to a neurology practice with a single complaint, such as a problem with memory or attention, often have other problems, such as anxiety/depression, stress, insomnia, sedentary lifestyle, obesity, diabetes, sleep apnea, or alcohol overuse.

“Each of these factors can affect their cognitive abilities and need a multimodal set of interventions in order to see full resolution of their cognitive symptoms,” Dr. Fotuhi said.

He has created a series of educational videos to demonstrate the program’s benefits.

The self-pay cost for the NeuroGrow BFP assessment and treatment sessions is approximately $7,000.

Dr. Fotuhi said all of the interventions included in the program are readily available at low cost.

He suggested that health care professionals who lack time or staff for conducting a comprehensive neurocognitive assessment for their patients can provide them with a copy of the Brain Health Index.

“Patients can then be instructed to work on the individual components of their brain health on their own – and measure their brain health index on a weekly basis,” Dr. Fotuhi said. “Private practices or academic centers can use the detailed information I have provided in my paper to develop their own brain fitness program.”
 

Not ready for prime time

Commenting on the study, Percy Griffin, PhD, director of scientific engagement for the Alzheimer’s Association, noted that “nonpharmacologic interventions can help alleviate some of the symptoms associated with dementia.

“The current study investigates nonpharmacologic interventions in a small number of patients with ADHD, postconcussion syndrome, or memory loss. The researchers found improvements on most measures following the brain rehabilitation program.

“While this is interesting, more work is needed in larger, more diverse cohorts before these programs can be applied broadly. Nonpharmacologic interventions are a helpful tool that need to be studied further in future studies,” Dr. Griffin added.

Funding for the study was provided by the NeuroGrow Brain Fitness Center. Dr. Fotuhi, the owner of NeuroGrow, was involved in data analysis, writing, editing, approval, and decision to publish. Dr. Griffin reported no disclosures.

A version of this article appeared on Medscape.com.

New longitudinal data from the TRACK TBI investigators show that recovery from traumatic brain injury (TBI) is a dynamic process that continues to evolve well beyond the initial 12 months after injury.

The data show that patients with TBI may continue to improve or decline during a period of up to 7 years after injury, making it more of a chronic condition, the investigators report.

“Our results dispute the notion that TBI is a discrete, isolated medical event with a finite, static functional outcome following a relatively short period of upward recovery (typically up to 1 year),” Benjamin Brett, PhD, assistant professor, departments of neurosurgery and neurology, Medical College of Wisconsin, Milwaukee, told this news organization.

“Rather, individuals continue to exhibit improvement and decline across a range of domains, including psychiatric, cognitive, and functional outcomes, even 2-7 years after their injury,” Dr. Brett said.

“Ultimately, our findings support conceptualizing TBI as a chronic condition for many patients, which requires routine follow-up, medical monitoring, responsive care, and support, adapting to their evolving needs many years following injury,” he said.

Results of the TRACK TBI LONG (Transforming Research and Clinical Knowledge in TBI Longitudinal study) were published online in Neurology.
 

Chronic and evolving

The results are based on 1,264 adults (mean age at injury, 41 years) from the initial TRACK TBI study, including 917 with mild TBI (mTBI) and 193 with moderate/severe TBI (msTBI), who were matched to 154 control patients who had experienced orthopedic trauma without evidence of head injury (OTC).

The participants were followed annually for up to 7 years after injury using the Glasgow Outcome Scale–Extended (GOSE), Brief Symptom Inventory–18 (BSI), and the Brief Test of Adult Cognition by Telephone (BTACT), as well as a self-reported perception of function. The researchers calculated rates of change (classified as stable, improved, or declined) for individual outcomes at each long-term follow-up.

In general, “stable” was the most frequent change outcome for the individual measures from postinjury baseline assessment to 7 years post injury.

However, a substantial proportion of patients with TBI (regardless of severity) experienced changes in psychiatric status, cognition, and functional outcomes over the years.

When the GOSE, BSI, and BTACT were considered collectively, rates of decline were 21% for mTBI, 26% for msTBI, and 15% for OTC.

The highest rates of decline were in functional outcomes (GOSE scores). On average, over the course of 2-7 years post injury, 29% of patients with mTBI and 23% of those with msTBI experienced a decline in the ability to function with daily activities.

A pattern of improvement on the GOSE was noted in 36% of patients with msTBI and 22% patients with mTBI.

Notably, said Dr. Brett, patients who experienced greater difficulties near the time of injury showed improvement for a period of 2-7 years post injury. Patient factors, such as older age at the time of the injury, were associated with greater risk of long-term decline.

“Our findings highlight the need to embrace conceptualization of TBI as a chronic condition in order to establish systems of care that provide continued follow-up with treatment and supports that adapt to evolving patient needs, regardless of the directions of change,” Dr. Brett told this news organization.
 

Important and novel work

In a linked editorial, Robynne Braun, MD, PhD, with the department of neurology, University of Maryland, Baltimore, notes that there have been “few prospective studies examining postinjury outcomes on this longer timescale, especially in mild TBI, making this an important and novel body of work.”

The study “effectively demonstrates that changes in function across multiple domains continue to occur well beyond the conventionally tracked 6- to 12-month period of injury recovery,” Dr. Braun writes.

The observation that over the 7-year follow-up, a substantial proportion of patients with mTBI and msTBI exhibited a pattern of decline on the GOSE suggests that they “may have needed more ongoing medical monitoring, rehabilitation, or supportive services to prevent worsening,” Dr. Braun adds.

At the same time, the improvement pattern on the GOSE suggests “opportunities for recovery that further rehabilitative or medical services might have enhanced.”

The study was funded by the National Institute of Neurological Disorders and Stroke, the National Institute on Aging, the National Football League Scientific Advisory Board, and the U.S. Department of Defense. Dr. Brett and Dr. Braun have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

New longitudinal data from the TRACK TBI investigators show that recovery from traumatic brain injury (TBI) is a dynamic process that continues to evolve well beyond the initial 12 months after injury.

The data show that patients with TBI may continue to improve or decline during a period of up to 7 years after injury, making it more of a chronic condition, the investigators report.

“Our results dispute the notion that TBI is a discrete, isolated medical event with a finite, static functional outcome following a relatively short period of upward recovery (typically up to 1 year),” Benjamin Brett, PhD, assistant professor, departments of neurosurgery and neurology, Medical College of Wisconsin, Milwaukee, told this news organization.

“Rather, individuals continue to exhibit improvement and decline across a range of domains, including psychiatric, cognitive, and functional outcomes, even 2-7 years after their injury,” Dr. Brett said.

“Ultimately, our findings support conceptualizing TBI as a chronic condition for many patients, which requires routine follow-up, medical monitoring, responsive care, and support, adapting to their evolving needs many years following injury,” he said.

Results of the TRACK TBI LONG (Transforming Research and Clinical Knowledge in TBI Longitudinal study) were published online in Neurology.
 

Chronic and evolving

The results are based on 1,264 adults (mean age at injury, 41 years) from the initial TRACK TBI study, including 917 with mild TBI (mTBI) and 193 with moderate/severe TBI (msTBI), who were matched to 154 control patients who had experienced orthopedic trauma without evidence of head injury (OTC).

The participants were followed annually for up to 7 years after injury using the Glasgow Outcome Scale–Extended (GOSE), Brief Symptom Inventory–18 (BSI), and the Brief Test of Adult Cognition by Telephone (BTACT), as well as a self-reported perception of function. The researchers calculated rates of change (classified as stable, improved, or declined) for individual outcomes at each long-term follow-up.

In general, “stable” was the most frequent change outcome for the individual measures from postinjury baseline assessment to 7 years post injury.

However, a substantial proportion of patients with TBI (regardless of severity) experienced changes in psychiatric status, cognition, and functional outcomes over the years.

When the GOSE, BSI, and BTACT were considered collectively, rates of decline were 21% for mTBI, 26% for msTBI, and 15% for OTC.

The highest rates of decline were in functional outcomes (GOSE scores). On average, over the course of 2-7 years post injury, 29% of patients with mTBI and 23% of those with msTBI experienced a decline in the ability to function with daily activities.

A pattern of improvement on the GOSE was noted in 36% of patients with msTBI and 22% patients with mTBI.

Notably, said Dr. Brett, patients who experienced greater difficulties near the time of injury showed improvement for a period of 2-7 years post injury. Patient factors, such as older age at the time of the injury, were associated with greater risk of long-term decline.

“Our findings highlight the need to embrace conceptualization of TBI as a chronic condition in order to establish systems of care that provide continued follow-up with treatment and supports that adapt to evolving patient needs, regardless of the directions of change,” Dr. Brett told this news organization.
 

Important and novel work

In a linked editorial, Robynne Braun, MD, PhD, with the department of neurology, University of Maryland, Baltimore, notes that there have been “few prospective studies examining postinjury outcomes on this longer timescale, especially in mild TBI, making this an important and novel body of work.”

The study “effectively demonstrates that changes in function across multiple domains continue to occur well beyond the conventionally tracked 6- to 12-month period of injury recovery,” Dr. Braun writes.

The observation that over the 7-year follow-up, a substantial proportion of patients with mTBI and msTBI exhibited a pattern of decline on the GOSE suggests that they “may have needed more ongoing medical monitoring, rehabilitation, or supportive services to prevent worsening,” Dr. Braun adds.

At the same time, the improvement pattern on the GOSE suggests “opportunities for recovery that further rehabilitative or medical services might have enhanced.”

The study was funded by the National Institute of Neurological Disorders and Stroke, the National Institute on Aging, the National Football League Scientific Advisory Board, and the U.S. Department of Defense. Dr. Brett and Dr. Braun have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

New longitudinal data from the TRACK TBI investigators show that recovery from traumatic brain injury (TBI) is a dynamic process that continues to evolve well beyond the initial 12 months after injury.

The data show that patients with TBI may continue to improve or decline during a period of up to 7 years after injury, making it more of a chronic condition, the investigators report.

“Our results dispute the notion that TBI is a discrete, isolated medical event with a finite, static functional outcome following a relatively short period of upward recovery (typically up to 1 year),” Benjamin Brett, PhD, assistant professor, departments of neurosurgery and neurology, Medical College of Wisconsin, Milwaukee, told this news organization.

“Rather, individuals continue to exhibit improvement and decline across a range of domains, including psychiatric, cognitive, and functional outcomes, even 2-7 years after their injury,” Dr. Brett said.

“Ultimately, our findings support conceptualizing TBI as a chronic condition for many patients, which requires routine follow-up, medical monitoring, responsive care, and support, adapting to their evolving needs many years following injury,” he said.

Results of the TRACK TBI LONG (Transforming Research and Clinical Knowledge in TBI Longitudinal study) were published online in Neurology.
 

Chronic and evolving

The results are based on 1,264 adults (mean age at injury, 41 years) from the initial TRACK TBI study, including 917 with mild TBI (mTBI) and 193 with moderate/severe TBI (msTBI), who were matched to 154 control patients who had experienced orthopedic trauma without evidence of head injury (OTC).

The participants were followed annually for up to 7 years after injury using the Glasgow Outcome Scale–Extended (GOSE), Brief Symptom Inventory–18 (BSI), and the Brief Test of Adult Cognition by Telephone (BTACT), as well as a self-reported perception of function. The researchers calculated rates of change (classified as stable, improved, or declined) for individual outcomes at each long-term follow-up.

In general, “stable” was the most frequent change outcome for the individual measures from postinjury baseline assessment to 7 years post injury.

However, a substantial proportion of patients with TBI (regardless of severity) experienced changes in psychiatric status, cognition, and functional outcomes over the years.

When the GOSE, BSI, and BTACT were considered collectively, rates of decline were 21% for mTBI, 26% for msTBI, and 15% for OTC.

The highest rates of decline were in functional outcomes (GOSE scores). On average, over the course of 2-7 years post injury, 29% of patients with mTBI and 23% of those with msTBI experienced a decline in the ability to function with daily activities.

A pattern of improvement on the GOSE was noted in 36% of patients with msTBI and 22% patients with mTBI.

Notably, said Dr. Brett, patients who experienced greater difficulties near the time of injury showed improvement for a period of 2-7 years post injury. Patient factors, such as older age at the time of the injury, were associated with greater risk of long-term decline.

“Our findings highlight the need to embrace conceptualization of TBI as a chronic condition in order to establish systems of care that provide continued follow-up with treatment and supports that adapt to evolving patient needs, regardless of the directions of change,” Dr. Brett told this news organization.
 

Important and novel work

In a linked editorial, Robynne Braun, MD, PhD, with the department of neurology, University of Maryland, Baltimore, notes that there have been “few prospective studies examining postinjury outcomes on this longer timescale, especially in mild TBI, making this an important and novel body of work.”

The study “effectively demonstrates that changes in function across multiple domains continue to occur well beyond the conventionally tracked 6- to 12-month period of injury recovery,” Dr. Braun writes.

The observation that over the 7-year follow-up, a substantial proportion of patients with mTBI and msTBI exhibited a pattern of decline on the GOSE suggests that they “may have needed more ongoing medical monitoring, rehabilitation, or supportive services to prevent worsening,” Dr. Braun adds.

At the same time, the improvement pattern on the GOSE suggests “opportunities for recovery that further rehabilitative or medical services might have enhanced.”

The study was funded by the National Institute of Neurological Disorders and Stroke, the National Institute on Aging, the National Football League Scientific Advisory Board, and the U.S. Department of Defense. Dr. Brett and Dr. Braun have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

This transcript has been edited for clarity.

Andrew N. Wilner, MD: I’m your host, Dr. Andrew Wilner, reporting virtually from the 2023 American Academy of Neurology meeting in Boston. It’s my pleasure today to speak with Dr. Shae Datta, codirector of the NYU Langone Concussion Center.

She’s also a clinical assistant professor of neurology at NYU School of Medicine. Dr. Datta is chair of the AAN Sports Neurology Section, and she’s leading a panel on concussion at this year’s meeting. She’s going to give us an update. Welcome, Dr. Datta.

Shae Datta, MD: Thank you so much, Andrew. I really love the fact that I’m here speaking to you about all of the new, exciting developments in the field.

Dr. Wilner: Before we get too deep, tell us how you got interested in this topic.

Dr. Datta: I initially thought, when I was in training as a resident, that I wanted to do something like neurocritical care or EEG. It also puzzled me why these seemingly smaller head injuries that didn’t end up in the hospital or ICU were bounced from neurology headache clinic to neuro-ophthalmology headache clinic to neurovestibular headache clinic, and nobody seemed to be able to put together the dots about why they’re having so many different issues — but at the same time, nobody could help them.

At that time, this field was very new. I was on a plane to Paris to a neurocritical care conference as a resident, and I saw the movie Concussion with Will Smith.

It featured one of my current mentors who taught at the fellowship that I graduated from, and it was a fascinating field. I just started looking deeply into it, and I saw that there was a new training fellowship for sports neurology and concussion management, and this is basically why we’re here today.
 

New concussion consensus guidelines coming

Dr. Wilner: I think this field has really exploded. It used to be that you banged your head, you did a CT scan – remember, I trained about 45 years ago – and if there was nothing on the CT scan, you were done. If you had headaches, you took Tylenol until they went away.

Now, we do MRI, and we realized that it’s really a syndrome. I understand that there are going to be some formal guidelines that have been put together. Is that correct?

Dr. Datta: That’s correct. The 6th International Consensus Conference on Concussion in Sport, in Amsterdam, where I attended and presented a poster, was really a meeting of all the best minds – clinicians and researchers in brain injury – to form a consensus on the newest guidelines that are going to direct our treatment going forward.

Dr. Wilner: I’m going to ask you a trick question because the last time I looked it up I did not get a satisfying answer. What is a concussion?

Dr. Datta: That’s a very good question, and everyone always asks. A concussion is an external force that is emitted upon the head or the neck, or the body, in general, that may cause temporary loss of function. It’s a functional problem.

We don’t see much on CT. We can do MRI. We can do SPECT or we can do these very fancy images, sometimes, of high-velocity head injuries and see small microhemorrhages.

Often, we don’t see anything, but still the patient is loopy. They can’t see straight. They are double-visioned. They have vertigo. Why is that happening? On the cellular level, we have an energy deficit in the sodium-potassium-ATPase pump of the neurons themselves.

Dr. Wilner: Suppose you do see diffuse axonal injury; does that take it out of concussion, or can you have a concussion with visible injury?

Dr. Datta: I think you can have overlap in the symptoms. The diffuse axonal injury would put it into a higher grade of head injury as opposed to a mild traumatic brain injury. Definitely, we would need to work together with our trauma doctors to ensure that patients are not on blood thinners or anything until they heal well enough. Obviously, I would pick them up as an outpatient and follow them until we resolve or rehab them as best as possible.

Concussion assessment tools

Dr. Wilner: There are many sports out there where concussions are fairly frequent, like American football and hockey, for example. Are there any statements in the new guidelines?

Dr. Datta: There are no statements for or against a particular sport because that would really make too much of a bold statement about cause and effect. There is a cause and effect in long-term, repetitive exposure, I would say, in terms of someone being able to play or sustain injury.

Right now, at least at the concussion conference I went to and in the upcoming consensus statement, they will not comment on a specific sport. Obviously, we know that the higher-impact sports are a little more dangerous.

Let’s be honest. At the high school, middle school, or even younger level, some kids are not necessarily the most athletic, right? They play because their friends are playing. If they’re repeatedly getting injured, it’s time for an astute clinician, or a coach, and a whole team to assess them to see if maybe this person is just going to continue to get hurt if they’re not taken out of the game and perhaps they should go to a lower-impact sport.

Dr. Wilner: In schools, often there’s a big size and weight difference. There are 14-year-olds who are 6 fett 2 inches and 200 pounds, and there are 14-year-olds who are 5 feet 2 inches and 110 pounds. Obviously, they’re mismatched on the football field.

You mentioned coaches. Is there anything in the guidelines about training coaches?

Dr. Datta: Specifically, there was nothing in the guidelines about that. There’s a tool for coaches at every level to use, which is called the Sports Concussion Assessment Tool, or SCAT, which is going to be updated to the SCAT6. At the NCAA level, they must receive annual training on concussion management and be given an NCAA concussion handout for coaches.

Obviously, there are more rigorous protocols for national-level coaching. As it stands now, it is not mandatory, but they are given tools to assess someone once they’ve gotten a hit to take them out of the game.

Dr. Wilner: I’ve been following the concussion research through the years. They did some neuropsychological testing on athletes who’ve had this many concussions or that many concussions, and they would find deficits here or subtle deficits there, but they had no baseline.

Then, there was a movement to start testing athletes before the season starts so that they could do a repeat test after concussion and see if there is any difference. Is that something we’re recommending?

Dr. Datta: Most of the time, NCAA-level – certainly where I trained – and national-level sports do testing, but it’s not everywhere. Prior guidelines have indicated that preseason testing is not required. That is largely because there has been no standardized neuropsychological testing established.

There are computerized testing options where the validity and reliability are questionable. Also, let’s say it’s a college student; they didn’t sleep all night and then they took this computer test. They would probably do worse than they would if they had received a head hit.

Just to be on the safe side, most places that have collegiate-level sports that are at a high level do preseason testing. If I were to speak personally, aside from the guidelines, I would say that it’s been helpful for me to look at the before and after, in general, overall, to make a decision about my treatment protocol.

Dr. Wilner: Let’s talk about the patient. You have a 20-year-old guy. He’s playing football. There’s a big play. Bonk, he gets hit on the head. He’s on the ground. He’s dazed, staggers a little bit, gets up, and you ask how he is feeling. He says he’s fine and then he wobbles off to the sideline. What do you do with that kid?

Dr. Datta: Obviously, the first thing is to remove him from the play environment to a quiet space. Second, either an athletic trainer or a coach would administer basic screening neurologic tests, such as “where are you, what’s today’s date, what is your name?” and other orientation questions.

They’ll also go through the SCAT – that’ll be SCAT6 starting in July – the SCAT5 symptom questionnaire to see what symptoms they have. Often, they’re using sideline testing software.

There are two things that can be used on a card to test eye movements, to see if they’re slower. They come out of NYU, coincidentally – the Memory Image Completion (MIC) and the Mobile Universal Lexicon Evaluation System (MULES) – and are used to determine whether eye movements are slower. That way, you can tell whether someone is, compared with before they got their head hit, slower than before.

Based on this composite information, usually the teammates and the head people on the team will know if a player looks different.

They need to be taken out, obviously, if there is nausea or vomiting, any neurologic signs and symptoms, or a neck injury that needs to be stabilized. ABCs first, right? If there’s any vomiting or seizures, they should be taken to the ER right away.

The first thing is to take them out, then do a sideline assessment. Third, see if they need to immediately go to the ED versus follow-up outpatient with me within a day or two.

Dr. Wilner: I think it’s the subtle injuries that are the tough ones. Back to our 20-year-old. He says: “Oh, I’m fine. I want to go back in the game.” Everybody can tell he’s not quite right, even though he passed all the tests. What do you do then?

Dr. Datta: You have to make a judgment call for the safety of the player. They always want to go back, right? This is also an issue when they’re competing for college scholarships and things of that nature. Sometimes they’re sandbagging, where they memorize the answers.

Everything’s on the Internet nowadays, right? We have to make a judgment call as members of the healthcare community and the sports community to keep that player safe.

Just keep them out. Don’t bring them back in the game. Keep them out for a reasonable amount of time. There’s a test called the Buffalo Concussion Treadmill Test; Dr. John Leddy from University of Buffalo has developed a way for us to put athletes through a screening protocol.

This can be part of their vestibular and ocular rehabilitation, where if they don’t have symptoms when we bring their heart rate to certain levels, then we can slowly clear them for return to play as long as they’re nonsymptomatic.

Dr. Wilner: I spoke with your colleague, Dr. Riggins, who is also on your panel, and we were talking about when they can go back. She said they can go back when they don’t have any symptoms. No more headache, no more dizziness, no more lightheadedness, no more trouble concentrating or with memory – all those things have gone away.

Sometimes these symptoms are stubborn. If you have, say, 100 patients like our 20-year-old who got bonked on the head, has some headaches, and doesn’t feel quite right, what usually happens? How many are back to play the next day, the next week, or the next month? How many are out for the season? How does that play out?

Dr. Datta: It depends on a couple of different factors. One, have they had previous head injuries? Two, do they have preexisting symptoms or signs, or diagnoses like migraines, which are likely to get worse after a head injury? Anything that’s preexisting, like a mood disorder, anxiety, depression, or trouble sleeping, is going to get worse.

If they were compensating for untreated ADD or borderline personality or bipolar, I’ve seen many people who’ve developed them. These are not the norm, but I’m saying that you have to be very careful.

Getting back to the question, you treat them. Reasonably, if they’re healthy and they don’t have preexisting signs and symptoms, I would say more than half are back in about 2 weeks.. I would say 60%-70%. It all depends. If they have preexisting issues, then it’s going to take much longer.
 

From SCAT to SCOAT

Dr. Wilner: This has been very informative. Before we wrap up, tell us what to expect from these guidelines in July. How are they really going to help?

Dr. Datta: The consensus statement is going to come out with something called a SCOAT, which stands for Sport Concussion Office Assessment Tool. We’ve been using the SCAT, which was meant for more sideline assessment because that’s all we had, and it’s worked perfectly well.

This will be better because we often see them within 24-48 hours, when the symptoms are sometimes a little bit better.

We also will see the sport and concussion group come up with added athlete perspectives, ethics discussion, power-sport athlete considerations, and development of this new SCOAT.

Dr. Wilner: Dr. Datta, this is very exciting. I look forward to reading these guidelines in July. I want to thank you for your hard work. I also look forward to talking to you at next year’s meeting. Thank you very much for giving us this update.

Dr. Datta: No problem. It’s my pleasure.

A version of this article originally appeared on Medscape.com.

This transcript has been edited for clarity.

Andrew N. Wilner, MD: I’m your host, Dr. Andrew Wilner, reporting virtually from the 2023 American Academy of Neurology meeting in Boston. It’s my pleasure today to speak with Dr. Shae Datta, codirector of the NYU Langone Concussion Center.

She’s also a clinical assistant professor of neurology at NYU School of Medicine. Dr. Datta is chair of the AAN Sports Neurology Section, and she’s leading a panel on concussion at this year’s meeting. She’s going to give us an update. Welcome, Dr. Datta.

Shae Datta, MD: Thank you so much, Andrew. I really love the fact that I’m here speaking to you about all of the new, exciting developments in the field.

Dr. Wilner: Before we get too deep, tell us how you got interested in this topic.

Dr. Datta: I initially thought, when I was in training as a resident, that I wanted to do something like neurocritical care or EEG. It also puzzled me why these seemingly smaller head injuries that didn’t end up in the hospital or ICU were bounced from neurology headache clinic to neuro-ophthalmology headache clinic to neurovestibular headache clinic, and nobody seemed to be able to put together the dots about why they’re having so many different issues — but at the same time, nobody could help them.

At that time, this field was very new. I was on a plane to Paris to a neurocritical care conference as a resident, and I saw the movie Concussion with Will Smith.

It featured one of my current mentors who taught at the fellowship that I graduated from, and it was a fascinating field. I just started looking deeply into it, and I saw that there was a new training fellowship for sports neurology and concussion management, and this is basically why we’re here today.
 

New concussion consensus guidelines coming

Dr. Wilner: I think this field has really exploded. It used to be that you banged your head, you did a CT scan – remember, I trained about 45 years ago – and if there was nothing on the CT scan, you were done. If you had headaches, you took Tylenol until they went away.

Now, we do MRI, and we realized that it’s really a syndrome. I understand that there are going to be some formal guidelines that have been put together. Is that correct?

Dr. Datta: That’s correct. The 6th International Consensus Conference on Concussion in Sport, in Amsterdam, where I attended and presented a poster, was really a meeting of all the best minds – clinicians and researchers in brain injury – to form a consensus on the newest guidelines that are going to direct our treatment going forward.

Dr. Wilner: I’m going to ask you a trick question because the last time I looked it up I did not get a satisfying answer. What is a concussion?

Dr. Datta: That’s a very good question, and everyone always asks. A concussion is an external force that is emitted upon the head or the neck, or the body, in general, that may cause temporary loss of function. It’s a functional problem.

We don’t see much on CT. We can do MRI. We can do SPECT or we can do these very fancy images, sometimes, of high-velocity head injuries and see small microhemorrhages.

Often, we don’t see anything, but still the patient is loopy. They can’t see straight. They are double-visioned. They have vertigo. Why is that happening? On the cellular level, we have an energy deficit in the sodium-potassium-ATPase pump of the neurons themselves.

Dr. Wilner: Suppose you do see diffuse axonal injury; does that take it out of concussion, or can you have a concussion with visible injury?

Dr. Datta: I think you can have overlap in the symptoms. The diffuse axonal injury would put it into a higher grade of head injury as opposed to a mild traumatic brain injury. Definitely, we would need to work together with our trauma doctors to ensure that patients are not on blood thinners or anything until they heal well enough. Obviously, I would pick them up as an outpatient and follow them until we resolve or rehab them as best as possible.

Concussion assessment tools

Dr. Wilner: There are many sports out there where concussions are fairly frequent, like American football and hockey, for example. Are there any statements in the new guidelines?

Dr. Datta: There are no statements for or against a particular sport because that would really make too much of a bold statement about cause and effect. There is a cause and effect in long-term, repetitive exposure, I would say, in terms of someone being able to play or sustain injury.

Right now, at least at the concussion conference I went to and in the upcoming consensus statement, they will not comment on a specific sport. Obviously, we know that the higher-impact sports are a little more dangerous.

Let’s be honest. At the high school, middle school, or even younger level, some kids are not necessarily the most athletic, right? They play because their friends are playing. If they’re repeatedly getting injured, it’s time for an astute clinician, or a coach, and a whole team to assess them to see if maybe this person is just going to continue to get hurt if they’re not taken out of the game and perhaps they should go to a lower-impact sport.

Dr. Wilner: In schools, often there’s a big size and weight difference. There are 14-year-olds who are 6 fett 2 inches and 200 pounds, and there are 14-year-olds who are 5 feet 2 inches and 110 pounds. Obviously, they’re mismatched on the football field.

You mentioned coaches. Is there anything in the guidelines about training coaches?

Dr. Datta: Specifically, there was nothing in the guidelines about that. There’s a tool for coaches at every level to use, which is called the Sports Concussion Assessment Tool, or SCAT, which is going to be updated to the SCAT6. At the NCAA level, they must receive annual training on concussion management and be given an NCAA concussion handout for coaches.

Obviously, there are more rigorous protocols for national-level coaching. As it stands now, it is not mandatory, but they are given tools to assess someone once they’ve gotten a hit to take them out of the game.

Dr. Wilner: I’ve been following the concussion research through the years. They did some neuropsychological testing on athletes who’ve had this many concussions or that many concussions, and they would find deficits here or subtle deficits there, but they had no baseline.

Then, there was a movement to start testing athletes before the season starts so that they could do a repeat test after concussion and see if there is any difference. Is that something we’re recommending?

Dr. Datta: Most of the time, NCAA-level – certainly where I trained – and national-level sports do testing, but it’s not everywhere. Prior guidelines have indicated that preseason testing is not required. That is largely because there has been no standardized neuropsychological testing established.

There are computerized testing options where the validity and reliability are questionable. Also, let’s say it’s a college student; they didn’t sleep all night and then they took this computer test. They would probably do worse than they would if they had received a head hit.

Just to be on the safe side, most places that have collegiate-level sports that are at a high level do preseason testing. If I were to speak personally, aside from the guidelines, I would say that it’s been helpful for me to look at the before and after, in general, overall, to make a decision about my treatment protocol.

Dr. Wilner: Let’s talk about the patient. You have a 20-year-old guy. He’s playing football. There’s a big play. Bonk, he gets hit on the head. He’s on the ground. He’s dazed, staggers a little bit, gets up, and you ask how he is feeling. He says he’s fine and then he wobbles off to the sideline. What do you do with that kid?

Dr. Datta: Obviously, the first thing is to remove him from the play environment to a quiet space. Second, either an athletic trainer or a coach would administer basic screening neurologic tests, such as “where are you, what’s today’s date, what is your name?” and other orientation questions.

They’ll also go through the SCAT – that’ll be SCAT6 starting in July – the SCAT5 symptom questionnaire to see what symptoms they have. Often, they’re using sideline testing software.

There are two things that can be used on a card to test eye movements, to see if they’re slower. They come out of NYU, coincidentally – the Memory Image Completion (MIC) and the Mobile Universal Lexicon Evaluation System (MULES) – and are used to determine whether eye movements are slower. That way, you can tell whether someone is, compared with before they got their head hit, slower than before.

Based on this composite information, usually the teammates and the head people on the team will know if a player looks different.

They need to be taken out, obviously, if there is nausea or vomiting, any neurologic signs and symptoms, or a neck injury that needs to be stabilized. ABCs first, right? If there’s any vomiting or seizures, they should be taken to the ER right away.

The first thing is to take them out, then do a sideline assessment. Third, see if they need to immediately go to the ED versus follow-up outpatient with me within a day or two.

Dr. Wilner: I think it’s the subtle injuries that are the tough ones. Back to our 20-year-old. He says: “Oh, I’m fine. I want to go back in the game.” Everybody can tell he’s not quite right, even though he passed all the tests. What do you do then?

Dr. Datta: You have to make a judgment call for the safety of the player. They always want to go back, right? This is also an issue when they’re competing for college scholarships and things of that nature. Sometimes they’re sandbagging, where they memorize the answers.

Everything’s on the Internet nowadays, right? We have to make a judgment call as members of the healthcare community and the sports community to keep that player safe.

Just keep them out. Don’t bring them back in the game. Keep them out for a reasonable amount of time. There’s a test called the Buffalo Concussion Treadmill Test; Dr. John Leddy from University of Buffalo has developed a way for us to put athletes through a screening protocol.

This can be part of their vestibular and ocular rehabilitation, where if they don’t have symptoms when we bring their heart rate to certain levels, then we can slowly clear them for return to play as long as they’re nonsymptomatic.

Dr. Wilner: I spoke with your colleague, Dr. Riggins, who is also on your panel, and we were talking about when they can go back. She said they can go back when they don’t have any symptoms. No more headache, no more dizziness, no more lightheadedness, no more trouble concentrating or with memory – all those things have gone away.

Sometimes these symptoms are stubborn. If you have, say, 100 patients like our 20-year-old who got bonked on the head, has some headaches, and doesn’t feel quite right, what usually happens? How many are back to play the next day, the next week, or the next month? How many are out for the season? How does that play out?

Dr. Datta: It depends on a couple of different factors. One, have they had previous head injuries? Two, do they have preexisting symptoms or signs, or diagnoses like migraines, which are likely to get worse after a head injury? Anything that’s preexisting, like a mood disorder, anxiety, depression, or trouble sleeping, is going to get worse.

If they were compensating for untreated ADD or borderline personality or bipolar, I’ve seen many people who’ve developed them. These are not the norm, but I’m saying that you have to be very careful.

Getting back to the question, you treat them. Reasonably, if they’re healthy and they don’t have preexisting signs and symptoms, I would say more than half are back in about 2 weeks.. I would say 60%-70%. It all depends. If they have preexisting issues, then it’s going to take much longer.
 

From SCAT to SCOAT

Dr. Wilner: This has been very informative. Before we wrap up, tell us what to expect from these guidelines in July. How are they really going to help?

Dr. Datta: The consensus statement is going to come out with something called a SCOAT, which stands for Sport Concussion Office Assessment Tool. We’ve been using the SCAT, which was meant for more sideline assessment because that’s all we had, and it’s worked perfectly well.

This will be better because we often see them within 24-48 hours, when the symptoms are sometimes a little bit better.

We also will see the sport and concussion group come up with added athlete perspectives, ethics discussion, power-sport athlete considerations, and development of this new SCOAT.

Dr. Wilner: Dr. Datta, this is very exciting. I look forward to reading these guidelines in July. I want to thank you for your hard work. I also look forward to talking to you at next year’s meeting. Thank you very much for giving us this update.

Dr. Datta: No problem. It’s my pleasure.

A version of this article originally appeared on Medscape.com.

This transcript has been edited for clarity.

Andrew N. Wilner, MD: I’m your host, Dr. Andrew Wilner, reporting virtually from the 2023 American Academy of Neurology meeting in Boston. It’s my pleasure today to speak with Dr. Shae Datta, codirector of the NYU Langone Concussion Center.

She’s also a clinical assistant professor of neurology at NYU School of Medicine. Dr. Datta is chair of the AAN Sports Neurology Section, and she’s leading a panel on concussion at this year’s meeting. She’s going to give us an update. Welcome, Dr. Datta.

Shae Datta, MD: Thank you so much, Andrew. I really love the fact that I’m here speaking to you about all of the new, exciting developments in the field.

Dr. Wilner: Before we get too deep, tell us how you got interested in this topic.

Dr. Datta: I initially thought, when I was in training as a resident, that I wanted to do something like neurocritical care or EEG. It also puzzled me why these seemingly smaller head injuries that didn’t end up in the hospital or ICU were bounced from neurology headache clinic to neuro-ophthalmology headache clinic to neurovestibular headache clinic, and nobody seemed to be able to put together the dots about why they’re having so many different issues — but at the same time, nobody could help them.

At that time, this field was very new. I was on a plane to Paris to a neurocritical care conference as a resident, and I saw the movie Concussion with Will Smith.

It featured one of my current mentors who taught at the fellowship that I graduated from, and it was a fascinating field. I just started looking deeply into it, and I saw that there was a new training fellowship for sports neurology and concussion management, and this is basically why we’re here today.
 

New concussion consensus guidelines coming

Dr. Wilner: I think this field has really exploded. It used to be that you banged your head, you did a CT scan – remember, I trained about 45 years ago – and if there was nothing on the CT scan, you were done. If you had headaches, you took Tylenol until they went away.

Now, we do MRI, and we realized that it’s really a syndrome. I understand that there are going to be some formal guidelines that have been put together. Is that correct?

Dr. Datta: That’s correct. The 6th International Consensus Conference on Concussion in Sport, in Amsterdam, where I attended and presented a poster, was really a meeting of all the best minds – clinicians and researchers in brain injury – to form a consensus on the newest guidelines that are going to direct our treatment going forward.

Dr. Wilner: I’m going to ask you a trick question because the last time I looked it up I did not get a satisfying answer. What is a concussion?

Dr. Datta: That’s a very good question, and everyone always asks. A concussion is an external force that is emitted upon the head or the neck, or the body, in general, that may cause temporary loss of function. It’s a functional problem.

We don’t see much on CT. We can do MRI. We can do SPECT or we can do these very fancy images, sometimes, of high-velocity head injuries and see small microhemorrhages.

Often, we don’t see anything, but still the patient is loopy. They can’t see straight. They are double-visioned. They have vertigo. Why is that happening? On the cellular level, we have an energy deficit in the sodium-potassium-ATPase pump of the neurons themselves.

Dr. Wilner: Suppose you do see diffuse axonal injury; does that take it out of concussion, or can you have a concussion with visible injury?

Dr. Datta: I think you can have overlap in the symptoms. The diffuse axonal injury would put it into a higher grade of head injury as opposed to a mild traumatic brain injury. Definitely, we would need to work together with our trauma doctors to ensure that patients are not on blood thinners or anything until they heal well enough. Obviously, I would pick them up as an outpatient and follow them until we resolve or rehab them as best as possible.

Concussion assessment tools

Dr. Wilner: There are many sports out there where concussions are fairly frequent, like American football and hockey, for example. Are there any statements in the new guidelines?

Dr. Datta: There are no statements for or against a particular sport because that would really make too much of a bold statement about cause and effect. There is a cause and effect in long-term, repetitive exposure, I would say, in terms of someone being able to play or sustain injury.

Right now, at least at the concussion conference I went to and in the upcoming consensus statement, they will not comment on a specific sport. Obviously, we know that the higher-impact sports are a little more dangerous.

Let’s be honest. At the high school, middle school, or even younger level, some kids are not necessarily the most athletic, right? They play because their friends are playing. If they’re repeatedly getting injured, it’s time for an astute clinician, or a coach, and a whole team to assess them to see if maybe this person is just going to continue to get hurt if they’re not taken out of the game and perhaps they should go to a lower-impact sport.

Dr. Wilner: In schools, often there’s a big size and weight difference. There are 14-year-olds who are 6 fett 2 inches and 200 pounds, and there are 14-year-olds who are 5 feet 2 inches and 110 pounds. Obviously, they’re mismatched on the football field.

You mentioned coaches. Is there anything in the guidelines about training coaches?

Dr. Datta: Specifically, there was nothing in the guidelines about that. There’s a tool for coaches at every level to use, which is called the Sports Concussion Assessment Tool, or SCAT, which is going to be updated to the SCAT6. At the NCAA level, they must receive annual training on concussion management and be given an NCAA concussion handout for coaches.

Obviously, there are more rigorous protocols for national-level coaching. As it stands now, it is not mandatory, but they are given tools to assess someone once they’ve gotten a hit to take them out of the game.

Dr. Wilner: I’ve been following the concussion research through the years. They did some neuropsychological testing on athletes who’ve had this many concussions or that many concussions, and they would find deficits here or subtle deficits there, but they had no baseline.

Then, there was a movement to start testing athletes before the season starts so that they could do a repeat test after concussion and see if there is any difference. Is that something we’re recommending?

Dr. Datta: Most of the time, NCAA-level – certainly where I trained – and national-level sports do testing, but it’s not everywhere. Prior guidelines have indicated that preseason testing is not required. That is largely because there has been no standardized neuropsychological testing established.

There are computerized testing options where the validity and reliability are questionable. Also, let’s say it’s a college student; they didn’t sleep all night and then they took this computer test. They would probably do worse than they would if they had received a head hit.

Just to be on the safe side, most places that have collegiate-level sports that are at a high level do preseason testing. If I were to speak personally, aside from the guidelines, I would say that it’s been helpful for me to look at the before and after, in general, overall, to make a decision about my treatment protocol.

Dr. Wilner: Let’s talk about the patient. You have a 20-year-old guy. He’s playing football. There’s a big play. Bonk, he gets hit on the head. He’s on the ground. He’s dazed, staggers a little bit, gets up, and you ask how he is feeling. He says he’s fine and then he wobbles off to the sideline. What do you do with that kid?

Dr. Datta: Obviously, the first thing is to remove him from the play environment to a quiet space. Second, either an athletic trainer or a coach would administer basic screening neurologic tests, such as “where are you, what’s today’s date, what is your name?” and other orientation questions.

They’ll also go through the SCAT – that’ll be SCAT6 starting in July – the SCAT5 symptom questionnaire to see what symptoms they have. Often, they’re using sideline testing software.

There are two things that can be used on a card to test eye movements, to see if they’re slower. They come out of NYU, coincidentally – the Memory Image Completion (MIC) and the Mobile Universal Lexicon Evaluation System (MULES) – and are used to determine whether eye movements are slower. That way, you can tell whether someone is, compared with before they got their head hit, slower than before.

Based on this composite information, usually the teammates and the head people on the team will know if a player looks different.

They need to be taken out, obviously, if there is nausea or vomiting, any neurologic signs and symptoms, or a neck injury that needs to be stabilized. ABCs first, right? If there’s any vomiting or seizures, they should be taken to the ER right away.

The first thing is to take them out, then do a sideline assessment. Third, see if they need to immediately go to the ED versus follow-up outpatient with me within a day or two.

Dr. Wilner: I think it’s the subtle injuries that are the tough ones. Back to our 20-year-old. He says: “Oh, I’m fine. I want to go back in the game.” Everybody can tell he’s not quite right, even though he passed all the tests. What do you do then?

Dr. Datta: You have to make a judgment call for the safety of the player. They always want to go back, right? This is also an issue when they’re competing for college scholarships and things of that nature. Sometimes they’re sandbagging, where they memorize the answers.

Everything’s on the Internet nowadays, right? We have to make a judgment call as members of the healthcare community and the sports community to keep that player safe.

Just keep them out. Don’t bring them back in the game. Keep them out for a reasonable amount of time. There’s a test called the Buffalo Concussion Treadmill Test; Dr. John Leddy from University of Buffalo has developed a way for us to put athletes through a screening protocol.

This can be part of their vestibular and ocular rehabilitation, where if they don’t have symptoms when we bring their heart rate to certain levels, then we can slowly clear them for return to play as long as they’re nonsymptomatic.

Dr. Wilner: I spoke with your colleague, Dr. Riggins, who is also on your panel, and we were talking about when they can go back. She said they can go back when they don’t have any symptoms. No more headache, no more dizziness, no more lightheadedness, no more trouble concentrating or with memory – all those things have gone away.

Sometimes these symptoms are stubborn. If you have, say, 100 patients like our 20-year-old who got bonked on the head, has some headaches, and doesn’t feel quite right, what usually happens? How many are back to play the next day, the next week, or the next month? How many are out for the season? How does that play out?

Dr. Datta: It depends on a couple of different factors. One, have they had previous head injuries? Two, do they have preexisting symptoms or signs, or diagnoses like migraines, which are likely to get worse after a head injury? Anything that’s preexisting, like a mood disorder, anxiety, depression, or trouble sleeping, is going to get worse.

If they were compensating for untreated ADD or borderline personality or bipolar, I’ve seen many people who’ve developed them. These are not the norm, but I’m saying that you have to be very careful.

Getting back to the question, you treat them. Reasonably, if they’re healthy and they don’t have preexisting signs and symptoms, I would say more than half are back in about 2 weeks.. I would say 60%-70%. It all depends. If they have preexisting issues, then it’s going to take much longer.
 

From SCAT to SCOAT

Dr. Wilner: This has been very informative. Before we wrap up, tell us what to expect from these guidelines in July. How are they really going to help?

Dr. Datta: The consensus statement is going to come out with something called a SCOAT, which stands for Sport Concussion Office Assessment Tool. We’ve been using the SCAT, which was meant for more sideline assessment because that’s all we had, and it’s worked perfectly well.

This will be better because we often see them within 24-48 hours, when the symptoms are sometimes a little bit better.

We also will see the sport and concussion group come up with added athlete perspectives, ethics discussion, power-sport athlete considerations, and development of this new SCOAT.

Dr. Wilner: Dr. Datta, this is very exciting. I look forward to reading these guidelines in July. I want to thank you for your hard work. I also look forward to talking to you at next year’s meeting. Thank you very much for giving us this update.

Dr. Datta: No problem. It’s my pleasure.

A version of this article originally appeared on Medscape.com.

Investigators have identified four blood biomarkers that could potentially be used to predict, diagnose, and monitor treatment response for posttraumatic stress disorder.

“More accurate means of predicting or screening for PTSD could help to overcome the disorder by identifying individuals at high risk of developing PTSD and providing them with early intervention or prevention strategies,” said study investigator Stacy-Ann Miller, MS.

She also noted that the biomarkers could be used to monitor treatment for PTSD, identify subtypes of PTSD, and lead to a new understanding of the mechanisms underlying PTSD.

The findings were presented at Discover BMB, the annual meeting of the American Society for Biochemistry and Molecular Biology.
 

Toward better clinical assessment

The findings originated from research conducted by the Department of Defense–initiated PTSD Systems Biology Consortium. The consortium’s goals include developing a reproducible panel of blood-based biomarkers with high sensitivity and specificity for PTSD diagnosis and is made up of about 45 researchers, led by Marti Jett, PhD, Charles Marmar, MD, and Francis J. Doyle III, PhD.

The researchers analyzed blood samples from 1,000 active-duty Army personnel from the 101st Airborne at Fort Campbell, Ky. Participants were assessed before and after deployment to Afghanistan in February 2014 and are referred to as the Fort Campbell Cohort (FCC). Participants’ age ranged from 25 to 30 and approximately 6% were female.

Investigators collected blood samples from the service members and looked for four biomarkers: glycolytic ratio, arginine, serotonin, and glutamate. The team then divided the participants into four groups – those with PTSD (PTSD Checklist score above 30), those who were subthreshold for PTSD (PTSD Checklist score 15-30), those who had high resilience, and those who had low levels of resilience.

The resilience groups were determined based on answers to the Generalized Anxiety Disorder Questionnaire, Patient Health Questionnaire, Pittsburgh Sleep Quality Index, Intensive Combat Exposure (DRRI-D), the number of deployments, whether they had moderate or severe traumatic brain injury, and scores on the Alcohol Use Disorders Identification Test.

Those who scored in the high range at current or prior time points or who were PTSD/subthreshold at prior time points were placed in the low resilience group.

Ms. Miller noted that those in the PTSD group had more severe symptoms than those in the PTSD subthreshold group based on the longitudinal clinical assessment at 3-6 months, 5 years, and longer post deployment. The low resilience group had a much higher rate of PTSD post deployment than the high resilience group.

Investigators found participants with PTSD or subthreshold PTSD had significantly higher glycolic ratios and lower arginine than those with high resilience. They also found that those with PTSD had significantly lower serotonin and higher glutamate levels versus those with high resilience. These associations were independent of factors such as sex, age, body mass index, smoking, and caffeine consumption.

Ms. Miller said that the study results require further validation by the consortium’s labs and third-party labs.

“We are also interested in determining the most appropriate time to screen soldiers for PTSD, as it has been noted that the time period where we see the most psychological issues is around 2-3 months post return from deployment and when the soldier is preparing for their next assignment, perhaps a next deployment,” she said.

She added that previous studies have identified several promising biomarkers of PTSD. “However, like much of the research data, the study sample was comprised mainly of combat-exposed males. With more women serving on the front lines, the military faces new challenges in how combat affects females in the military,” including sex-specific biomarkers that will improve clinical assessment for female soldiers.

Eventually, the team would also like to be able to apply their research to the civilian population experiencing PTSD.

“Our research is anticipated to be useful in helping the medical provider select appropriate therapeutic interventions,” Ms. Miller said.

A version of this article first appeared on Medscape.com.

Investigators have identified four blood biomarkers that could potentially be used to predict, diagnose, and monitor treatment response for posttraumatic stress disorder.

“More accurate means of predicting or screening for PTSD could help to overcome the disorder by identifying individuals at high risk of developing PTSD and providing them with early intervention or prevention strategies,” said study investigator Stacy-Ann Miller, MS.

She also noted that the biomarkers could be used to monitor treatment for PTSD, identify subtypes of PTSD, and lead to a new understanding of the mechanisms underlying PTSD.

The findings were presented at Discover BMB, the annual meeting of the American Society for Biochemistry and Molecular Biology.
 

Toward better clinical assessment

The findings originated from research conducted by the Department of Defense–initiated PTSD Systems Biology Consortium. The consortium’s goals include developing a reproducible panel of blood-based biomarkers with high sensitivity and specificity for PTSD diagnosis and is made up of about 45 researchers, led by Marti Jett, PhD, Charles Marmar, MD, and Francis J. Doyle III, PhD.

The researchers analyzed blood samples from 1,000 active-duty Army personnel from the 101st Airborne at Fort Campbell, Ky. Participants were assessed before and after deployment to Afghanistan in February 2014 and are referred to as the Fort Campbell Cohort (FCC). Participants’ age ranged from 25 to 30 and approximately 6% were female.

Investigators collected blood samples from the service members and looked for four biomarkers: glycolytic ratio, arginine, serotonin, and glutamate. The team then divided the participants into four groups – those with PTSD (PTSD Checklist score above 30), those who were subthreshold for PTSD (PTSD Checklist score 15-30), those who had high resilience, and those who had low levels of resilience.

The resilience groups were determined based on answers to the Generalized Anxiety Disorder Questionnaire, Patient Health Questionnaire, Pittsburgh Sleep Quality Index, Intensive Combat Exposure (DRRI-D), the number of deployments, whether they had moderate or severe traumatic brain injury, and scores on the Alcohol Use Disorders Identification Test.

Those who scored in the high range at current or prior time points or who were PTSD/subthreshold at prior time points were placed in the low resilience group.

Ms. Miller noted that those in the PTSD group had more severe symptoms than those in the PTSD subthreshold group based on the longitudinal clinical assessment at 3-6 months, 5 years, and longer post deployment. The low resilience group had a much higher rate of PTSD post deployment than the high resilience group.

Investigators found participants with PTSD or subthreshold PTSD had significantly higher glycolic ratios and lower arginine than those with high resilience. They also found that those with PTSD had significantly lower serotonin and higher glutamate levels versus those with high resilience. These associations were independent of factors such as sex, age, body mass index, smoking, and caffeine consumption.

Ms. Miller said that the study results require further validation by the consortium’s labs and third-party labs.

“We are also interested in determining the most appropriate time to screen soldiers for PTSD, as it has been noted that the time period where we see the most psychological issues is around 2-3 months post return from deployment and when the soldier is preparing for their next assignment, perhaps a next deployment,” she said.

She added that previous studies have identified several promising biomarkers of PTSD. “However, like much of the research data, the study sample was comprised mainly of combat-exposed males. With more women serving on the front lines, the military faces new challenges in how combat affects females in the military,” including sex-specific biomarkers that will improve clinical assessment for female soldiers.

Eventually, the team would also like to be able to apply their research to the civilian population experiencing PTSD.

“Our research is anticipated to be useful in helping the medical provider select appropriate therapeutic interventions,” Ms. Miller said.

A version of this article first appeared on Medscape.com.

Investigators have identified four blood biomarkers that could potentially be used to predict, diagnose, and monitor treatment response for posttraumatic stress disorder.

“More accurate means of predicting or screening for PTSD could help to overcome the disorder by identifying individuals at high risk of developing PTSD and providing them with early intervention or prevention strategies,” said study investigator Stacy-Ann Miller, MS.

She also noted that the biomarkers could be used to monitor treatment for PTSD, identify subtypes of PTSD, and lead to a new understanding of the mechanisms underlying PTSD.

The findings were presented at Discover BMB, the annual meeting of the American Society for Biochemistry and Molecular Biology.
 

Toward better clinical assessment

The findings originated from research conducted by the Department of Defense–initiated PTSD Systems Biology Consortium. The consortium’s goals include developing a reproducible panel of blood-based biomarkers with high sensitivity and specificity for PTSD diagnosis and is made up of about 45 researchers, led by Marti Jett, PhD, Charles Marmar, MD, and Francis J. Doyle III, PhD.

The researchers analyzed blood samples from 1,000 active-duty Army personnel from the 101st Airborne at Fort Campbell, Ky. Participants were assessed before and after deployment to Afghanistan in February 2014 and are referred to as the Fort Campbell Cohort (FCC). Participants’ age ranged from 25 to 30 and approximately 6% were female.

Investigators collected blood samples from the service members and looked for four biomarkers: glycolytic ratio, arginine, serotonin, and glutamate. The team then divided the participants into four groups – those with PTSD (PTSD Checklist score above 30), those who were subthreshold for PTSD (PTSD Checklist score 15-30), those who had high resilience, and those who had low levels of resilience.

The resilience groups were determined based on answers to the Generalized Anxiety Disorder Questionnaire, Patient Health Questionnaire, Pittsburgh Sleep Quality Index, Intensive Combat Exposure (DRRI-D), the number of deployments, whether they had moderate or severe traumatic brain injury, and scores on the Alcohol Use Disorders Identification Test.

Those who scored in the high range at current or prior time points or who were PTSD/subthreshold at prior time points were placed in the low resilience group.

Ms. Miller noted that those in the PTSD group had more severe symptoms than those in the PTSD subthreshold group based on the longitudinal clinical assessment at 3-6 months, 5 years, and longer post deployment. The low resilience group had a much higher rate of PTSD post deployment than the high resilience group.

Investigators found participants with PTSD or subthreshold PTSD had significantly higher glycolic ratios and lower arginine than those with high resilience. They also found that those with PTSD had significantly lower serotonin and higher glutamate levels versus those with high resilience. These associations were independent of factors such as sex, age, body mass index, smoking, and caffeine consumption.

Ms. Miller said that the study results require further validation by the consortium’s labs and third-party labs.

“We are also interested in determining the most appropriate time to screen soldiers for PTSD, as it has been noted that the time period where we see the most psychological issues is around 2-3 months post return from deployment and when the soldier is preparing for their next assignment, perhaps a next deployment,” she said.

She added that previous studies have identified several promising biomarkers of PTSD. “However, like much of the research data, the study sample was comprised mainly of combat-exposed males. With more women serving on the front lines, the military faces new challenges in how combat affects females in the military,” including sex-specific biomarkers that will improve clinical assessment for female soldiers.

Eventually, the team would also like to be able to apply their research to the civilian population experiencing PTSD.

“Our research is anticipated to be useful in helping the medical provider select appropriate therapeutic interventions,” Ms. Miller said.

A version of this article first appeared on Medscape.com.

When Senate Minority Leader Mitch McConnell (R-Ky.) fell recently at a dinner event in Washington, he unfortunately joined a large group of his senior citizen peers. 

This wasn’t the first tumble the 81-year-old has taken. In 2019, he fell in his home, fracturing his shoulder. This time, he got a concussion and was recently released to an in-patient rehabilitation facility. While Sen. McConnell didn’t fracture his skull, in falling and hitting his head, he became part of an emerging statistic: One that reveals falls are more dangerous for senior men than senior women. 

This new research, which appeared in the American Journal of Emergency Medicine, came as a surprise to lead researcher Scott Alter, MD, associate professor of emergency medicine at the Florida Atlantic University, Boca Raton. 

“We always hear about lower bone density rates among females, so we didn’t expect to see males with more skull fractures,” he said. 

Dr. Alter said that as a clinician in a southern Florida facility, his emergency department was the perfect study grounds to evaluate incoming geriatric patients due to falls. Older “patients are at higher risk of skull fractures and intercranial bleeding, and we wanted to look at any patient presenting with a head injury. Some 80% were fall related, however.” 

The statistics bear out the fact that falls of all types are common among the elderly: Some 800,000 seniors wind up in the hospital each year because of falls.

The numbers show death rates from falls are on the rise in the senior citizen age group, too, up 30% from 2007 to 2016. Falls account for 70% of accidental deaths in people 75 and older. They are the leading cause of injury-related visits to emergency departments in the country, too. 

Jennifer Stevens, MD, a gerontologist and executive director at Florida-based Abbey Delray South, is aware of the dire numbers and sees their consequences regularly. “The reasons seniors are at a high fall risk are many,” she said. “They include balance issues, declining strength, diseases like Parkinson’s and Alzheimer’s, side effects of their medications, and more.”

In addition, many seniors live in spaces that are not necessarily equipped for their limitations, and hazards exist all over their homes. Put together, and the risks for falls are everywhere. But there are steps seniors, their families, and even middle-aged people can take to mitigate and hopefully prevent dangerous falls.  
 

Starting early

While in many cases the journey to lessen fall risks begins after a fall, the time to begin addressing the issue is long before you hit your senior years. Mary Therese Cole, a physical therapist and certified dementia practitioner at Manual Edge Physical Therapy in Colorado Springs, Colo., says that age 50 is a good time to start paying attention and addressing physical declines. 

“This is an age where your vision might begin deteriorating,” she said. “It’s a big reason why elderly people trip and fall.” 

As our brains begin to age in our middle years, the neural pathways from brain to extremities start to decline, too. The result is that many people stop picking up their feet as well as they used to do, making them more likely to trip. 

“You’re not elderly yet, but you’re not a spring chicken, either,” Ms. Cole said. “Any issues you have now will only get worse if you’re not working on them.” 

A good starting point in middle age, then, is to work on both strength training and balance exercises. A certified personal trainer or physical therapist can help get you on a program to ward off many of these declines.

If you’ve reached your later years, however, and are experiencing physical declines, it’s smart to check in with your primary care doctor for an assessment. “He or she can get your started on regular PT to evaluate any shortcomings and then address them,” Ms. Cole said. 

She noted that when she’s working with senior patients, she’ll test their strength getting into and out of a chair, do a manual strength test to check on lower extremities, check their walking stride, and ask about conditions such as diabetes, former surgeries, and other conditions. 

From there, Ms. Cole said she can write up a plan for the patient. Likewise, Dr. Stevens uses a program called Be Active that allows her to test seniors on a variety of measurements, including flexibility, balance, hand strength, and more. 

“Then we match them with classes to address their shortcomings,” she said. “It’s critical that seniors have the ability to recover and not fall if they get knocked off balance.”

Beyond working on your physical limitations, taking a good look at your home is essential, too. “You can have an occupational therapist come to your home and do an evaluation,” Dr. Stevens said. “They can help you rearrange and reorganize for a safer environment.” 

Big, common household fall hazards include throw rugs, lack of nightlights for middle-of-the-night visits to the bathroom, a lack of grab bars in the shower/bathtub, and furniture that blocks pathways. 

For his part, Dr. Alter likes to point seniors and their doctors to the CDC’s STEADI program, which is aimed at stopping elderly accidents, deaths, and injuries. 

“It includes screening for fall risk, assessing factors you can modify or improve, and more tools,” he said. 

Dr. Alter also recommended seniors talk to their doctors about medications, particularly blood thinners. 

“At a certain point, you need to weigh the benefits of disease prevention with the risk of injury if you fall,” he said. “The bleeding risk might be too high if the patient is at a high risk of falls.”
 

A version of this article originally appeared on WebMD.com. 

When Senate Minority Leader Mitch McConnell (R-Ky.) fell recently at a dinner event in Washington, he unfortunately joined a large group of his senior citizen peers. 

This wasn’t the first tumble the 81-year-old has taken. In 2019, he fell in his home, fracturing his shoulder. This time, he got a concussion and was recently released to an in-patient rehabilitation facility. While Sen. McConnell didn’t fracture his skull, in falling and hitting his head, he became part of an emerging statistic: One that reveals falls are more dangerous for senior men than senior women. 

This new research, which appeared in the American Journal of Emergency Medicine, came as a surprise to lead researcher Scott Alter, MD, associate professor of emergency medicine at the Florida Atlantic University, Boca Raton. 

“We always hear about lower bone density rates among females, so we didn’t expect to see males with more skull fractures,” he said. 

Dr. Alter said that as a clinician in a southern Florida facility, his emergency department was the perfect study grounds to evaluate incoming geriatric patients due to falls. Older “patients are at higher risk of skull fractures and intercranial bleeding, and we wanted to look at any patient presenting with a head injury. Some 80% were fall related, however.” 

The statistics bear out the fact that falls of all types are common among the elderly: Some 800,000 seniors wind up in the hospital each year because of falls.

The numbers show death rates from falls are on the rise in the senior citizen age group, too, up 30% from 2007 to 2016. Falls account for 70% of accidental deaths in people 75 and older. They are the leading cause of injury-related visits to emergency departments in the country, too. 

Jennifer Stevens, MD, a gerontologist and executive director at Florida-based Abbey Delray South, is aware of the dire numbers and sees their consequences regularly. “The reasons seniors are at a high fall risk are many,” she said. “They include balance issues, declining strength, diseases like Parkinson’s and Alzheimer’s, side effects of their medications, and more.”

In addition, many seniors live in spaces that are not necessarily equipped for their limitations, and hazards exist all over their homes. Put together, and the risks for falls are everywhere. But there are steps seniors, their families, and even middle-aged people can take to mitigate and hopefully prevent dangerous falls.  
 

Starting early

While in many cases the journey to lessen fall risks begins after a fall, the time to begin addressing the issue is long before you hit your senior years. Mary Therese Cole, a physical therapist and certified dementia practitioner at Manual Edge Physical Therapy in Colorado Springs, Colo., says that age 50 is a good time to start paying attention and addressing physical declines. 

“This is an age where your vision might begin deteriorating,” she said. “It’s a big reason why elderly people trip and fall.” 

As our brains begin to age in our middle years, the neural pathways from brain to extremities start to decline, too. The result is that many people stop picking up their feet as well as they used to do, making them more likely to trip. 

“You’re not elderly yet, but you’re not a spring chicken, either,” Ms. Cole said. “Any issues you have now will only get worse if you’re not working on them.” 

A good starting point in middle age, then, is to work on both strength training and balance exercises. A certified personal trainer or physical therapist can help get you on a program to ward off many of these declines.

If you’ve reached your later years, however, and are experiencing physical declines, it’s smart to check in with your primary care doctor for an assessment. “He or she can get your started on regular PT to evaluate any shortcomings and then address them,” Ms. Cole said. 

She noted that when she’s working with senior patients, she’ll test their strength getting into and out of a chair, do a manual strength test to check on lower extremities, check their walking stride, and ask about conditions such as diabetes, former surgeries, and other conditions. 

From there, Ms. Cole said she can write up a plan for the patient. Likewise, Dr. Stevens uses a program called Be Active that allows her to test seniors on a variety of measurements, including flexibility, balance, hand strength, and more. 

“Then we match them with classes to address their shortcomings,” she said. “It’s critical that seniors have the ability to recover and not fall if they get knocked off balance.”

Beyond working on your physical limitations, taking a good look at your home is essential, too. “You can have an occupational therapist come to your home and do an evaluation,” Dr. Stevens said. “They can help you rearrange and reorganize for a safer environment.” 

Big, common household fall hazards include throw rugs, lack of nightlights for middle-of-the-night visits to the bathroom, a lack of grab bars in the shower/bathtub, and furniture that blocks pathways. 

For his part, Dr. Alter likes to point seniors and their doctors to the CDC’s STEADI program, which is aimed at stopping elderly accidents, deaths, and injuries. 

“It includes screening for fall risk, assessing factors you can modify or improve, and more tools,” he said. 

Dr. Alter also recommended seniors talk to their doctors about medications, particularly blood thinners. 

“At a certain point, you need to weigh the benefits of disease prevention with the risk of injury if you fall,” he said. “The bleeding risk might be too high if the patient is at a high risk of falls.”
 

A version of this article originally appeared on WebMD.com. 

When Senate Minority Leader Mitch McConnell (R-Ky.) fell recently at a dinner event in Washington, he unfortunately joined a large group of his senior citizen peers. 

This wasn’t the first tumble the 81-year-old has taken. In 2019, he fell in his home, fracturing his shoulder. This time, he got a concussion and was recently released to an in-patient rehabilitation facility. While Sen. McConnell didn’t fracture his skull, in falling and hitting his head, he became part of an emerging statistic: One that reveals falls are more dangerous for senior men than senior women. 

This new research, which appeared in the American Journal of Emergency Medicine, came as a surprise to lead researcher Scott Alter, MD, associate professor of emergency medicine at the Florida Atlantic University, Boca Raton. 

“We always hear about lower bone density rates among females, so we didn’t expect to see males with more skull fractures,” he said. 

Dr. Alter said that as a clinician in a southern Florida facility, his emergency department was the perfect study grounds to evaluate incoming geriatric patients due to falls. Older “patients are at higher risk of skull fractures and intercranial bleeding, and we wanted to look at any patient presenting with a head injury. Some 80% were fall related, however.” 

The statistics bear out the fact that falls of all types are common among the elderly: Some 800,000 seniors wind up in the hospital each year because of falls.

The numbers show death rates from falls are on the rise in the senior citizen age group, too, up 30% from 2007 to 2016. Falls account for 70% of accidental deaths in people 75 and older. They are the leading cause of injury-related visits to emergency departments in the country, too. 

Jennifer Stevens, MD, a gerontologist and executive director at Florida-based Abbey Delray South, is aware of the dire numbers and sees their consequences regularly. “The reasons seniors are at a high fall risk are many,” she said. “They include balance issues, declining strength, diseases like Parkinson’s and Alzheimer’s, side effects of their medications, and more.”

In addition, many seniors live in spaces that are not necessarily equipped for their limitations, and hazards exist all over their homes. Put together, and the risks for falls are everywhere. But there are steps seniors, their families, and even middle-aged people can take to mitigate and hopefully prevent dangerous falls.  
 

Starting early

While in many cases the journey to lessen fall risks begins after a fall, the time to begin addressing the issue is long before you hit your senior years. Mary Therese Cole, a physical therapist and certified dementia practitioner at Manual Edge Physical Therapy in Colorado Springs, Colo., says that age 50 is a good time to start paying attention and addressing physical declines. 

“This is an age where your vision might begin deteriorating,” she said. “It’s a big reason why elderly people trip and fall.” 

As our brains begin to age in our middle years, the neural pathways from brain to extremities start to decline, too. The result is that many people stop picking up their feet as well as they used to do, making them more likely to trip. 

“You’re not elderly yet, but you’re not a spring chicken, either,” Ms. Cole said. “Any issues you have now will only get worse if you’re not working on them.” 

A good starting point in middle age, then, is to work on both strength training and balance exercises. A certified personal trainer or physical therapist can help get you on a program to ward off many of these declines.

If you’ve reached your later years, however, and are experiencing physical declines, it’s smart to check in with your primary care doctor for an assessment. “He or she can get your started on regular PT to evaluate any shortcomings and then address them,” Ms. Cole said. 

She noted that when she’s working with senior patients, she’ll test their strength getting into and out of a chair, do a manual strength test to check on lower extremities, check their walking stride, and ask about conditions such as diabetes, former surgeries, and other conditions. 

From there, Ms. Cole said she can write up a plan for the patient. Likewise, Dr. Stevens uses a program called Be Active that allows her to test seniors on a variety of measurements, including flexibility, balance, hand strength, and more. 

“Then we match them with classes to address their shortcomings,” she said. “It’s critical that seniors have the ability to recover and not fall if they get knocked off balance.”

Beyond working on your physical limitations, taking a good look at your home is essential, too. “You can have an occupational therapist come to your home and do an evaluation,” Dr. Stevens said. “They can help you rearrange and reorganize for a safer environment.” 

Big, common household fall hazards include throw rugs, lack of nightlights for middle-of-the-night visits to the bathroom, a lack of grab bars in the shower/bathtub, and furniture that blocks pathways. 

For his part, Dr. Alter likes to point seniors and their doctors to the CDC’s STEADI program, which is aimed at stopping elderly accidents, deaths, and injuries. 

“It includes screening for fall risk, assessing factors you can modify or improve, and more tools,” he said. 

Dr. Alter also recommended seniors talk to their doctors about medications, particularly blood thinners. 

“At a certain point, you need to weigh the benefits of disease prevention with the risk of injury if you fall,” he said. “The bleeding risk might be too high if the patient is at a high risk of falls.”
 

A version of this article originally appeared on WebMD.com.