OBG Management

The Centers for Disease Control and Prevention (CDC) reported 106,699 deaths in 2021 from drug overdose, with the majority being linked to synthetic opioids, including fentanyl and tramadol.¹ This number compares with 42,795 deaths due to motor vehicle accidents and 48,183 deaths due to suicide in 2021.^2,3 Most of the opioid overdose deaths occurred among people aged 25 to 64 years, the peak age of patients cared for by obstetrician-gynecologists. Among pregnant and postpartum persons, mortality due to drug overdose has increased by 81% between 2017 and 2020.⁴

Among pregnant and postpartum patients, drug overdose death is more common than suicide, and the risk for drug overdose death appears to be greatest in the year following delivery.^5,6 In many cases, postpartum patients with OUD have had multiple contacts with the health care system prior to their death, showing that there is an opportunity for therapeutic intervention before the death occurred.⁷ Medication-assisted recovery for OUD involves a comprehensive array of interventions including medication, counseling, and social support. Medication treatment of OUD with BUP or methadone reduces the risk for death but is underutilized among patients with OUD.^6,8 Recent federal legislation has removed restrictions on the use of BUP, increasing the opportunity for primary care clinicians to prescribe it for the treatment of OUD.⁹

Screening and diagnosis of OUD

Screening for OUD is recommended for patients who are at risk for opioid misuse (ie, those who are taking/have taken opioid medications). The OWLS (Overuse, Worrying, Losing interest, and feeling Slowed down, sluggish, or sedated) screening tool is used to detect prescription medication OUD and has 4 questions¹⁰:

1. In the past 3 months did you use your opioid medicines for other purposes—for example, to help you sleep or to help with stress or worry?

2. In the past 3 months did opioid medicines cause you to feel slowed down, sluggish, or sedated?

3. In the past 3 months did opioid medicines cause you to lose interest in your usual activities?

4. In the past 3 months did you worry about your use of opioid medicines? 

Patient agreement with 3 or 4 questions indicates a positive screening test.

If the patient has a positive screening test, a formal diagnosis of OUD can be made using the 11 symptoms outlined in the American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition.¹¹ The diagnosis of mild (2 to 3 symptoms), moderate (4 to 5 symptoms), or severe OUD (6 or more symptoms) is made based on the number of symptoms the patient reports.

Buprenorphine treatment of OUD in primary care

The role of primary care clinicians in the medication treatment of OUD is increasing. Using a nationwide system that tracks prescription medications, investigators reported that, in 2004, psychiatrists wrote 32.2% of all BUP prescriptions; in 2021, however, only 10% of such prescriptions were provided by psychiatrists, with most prescriptions written by non-psychiatrist physicians, nurse practitioners, and physician assistants that year.¹² Innovative telehealth approaches to consultation and medication treatment of OUD are now available—one example is QuickMD.¹³ Such sites are designed to remove barriers to initiating medication treatment of OUD.

The role of primary care clinicians in the management of OUD using BUP and buprenorphine-naloxone (BUP-NAL) has increased due to many factors, including:

• the removal of US Food and Drug Administration (FDA) barriers to prescribing BUP
• the epidemic of OUD and the small size of the addiction specialist workforce, necessitating that primary care clinicians become engaged in the treatment of OUD
• an increase in unobserved initiation of BUP among ambulatory patients, and a parallel decrease in cases of observed initiation in addiction center settings
• the reframing of OUD as a chronic medical problem, with many similarities to diabetes, obesity, dyslipidemia, and hypertension.

Similar to other diseases managed by primary care clinicians, OUD requires long-term chronic treatment with a medicine that, if taken as directed, provides excellent outcomes. Primary care clinicians who prescribe BUP also can optimize longitudinal care for comorbid disorders such as hypertension and diabetes, which are prevalent in people with OUD.

In 2019, New Jersey implemented new guidelines for the treatment of OUD, removing prior authorization barriers, increasing reimbursement for office-based OUD treatment, and establishing regional centers of excellence. The implementation of the new guidelines was followed by a marked increase in BUP prescribers among primary care clinicians, emergency medicine physicians, and advanced practice clinicians.¹⁴

To estimate the public health impact of BUP prescribing by primary care clinicians, investigators simulated patient outcomes in 3 scenarios¹⁵:

1. primary care clinicians refer patients to addiction specialists for OUD treatment

2. primary care clinicians provide BUP services in their practice

3. primary care clinicians provide BUP and harm reduction kits containing syringes and wound care supplies in their practice. 

Strategies 2 and 3 resulted in 14% fewer deaths due to opioid overdose, an increased life expectancy of approximately 2.7 years, and reduced hospital costs. For strategy 3, the incremental cost per life-year saved was $34,400. The investigators noted that prescribing BUP in primary care practice increases practice costs.¹⁵

Treatment with BUP reduces death from opioid overdose, improves patient health, decreases use of illicit opioids, and reduces patient cravings for opioids. BUP is a safe medication and is associated with fewer adverse effects than insulin or warfarin.¹⁶

Continue to: Methadone treatment of OUD...

Methadone is a full opioid agonist approved by the FDA for the treatment of severe pain or OUD. Methadone treatment of OUD is strictly regulated and typically is ordered and administered at an opioid treatment program that is federally licensed. Methadone for OUD treatment cannot be prescribed by a physician to a pharmacy, limiting its use in primary care practice. Methadone used to treat OUD is ordered and dispensed at opioid-treatment programs. Take-home doses of methadone may be available to patients after adherence to the regimen has been established. When used long-term, higher doses of methadone are associated with better adherence, but these higher doses can cause respiratory depression. In a study of 189 pregnant patients taking methadone to treat OUD, daily doses of 60 mg or greater were associated with better treatment retention at delivery and 60 days postpartum, as well as less use of nonprescription opioids.¹⁷ Under limited circumstances methadone can be ordered and dispensed for hospitalized patients with OUD.

Medication treatment of OUD in obstetrics

In the United States, the prevalence of OUD among pregnant patients hospitalized for delivery more than quadrupled from 1999 through 2014.¹⁸ BUP and methadone commonly are used to treat OUD during pregnancy.¹⁹ Among pregnant patients about 5% of buprenorphine prescriptions are written by obstetricians.²⁰ An innovative approach to initiating BUP for pregnant patients with OUD is to use unobserved initiation, which involves outpatient discontinuation of nonprescription opioids to induce mild to moderate withdrawal symptoms followed by initiation of BUP treatment. In one cohort study, 55 pregnant patients used an unobserved outpatient protocol to initiate BUP treatment; 80% of the patients previously had used methadone or BUP. No patient experienced a precipitated withdrawal and 96% of patients returned for their office visit 1 week after initiation of treatment. Eighty-six percent of patients remained in treatment 3 months following initiation of BUP.²¹

Compared with methadone, BUP treatment during pregnancy may result in lower rates of neonatal abstinence syndrome. In one study of pregnant patients who were using methadone (n = 5,056) or BUP (n = 11,272) in late pregnancy, neonatal abstinence syndrome was diagnosed in 69.2% and 52.0% of newborns, respectively (adjusted relative risk, 0.73; 95% confidence interval, 0.71–0.75).²² In addition, compared with methadone, the use of BUP was associated with a reduced risk for low birth weight (14.9% vs 8.3%) and a lower risk for preterm birth (24.9% vs 14.4%). In this study, there were no differences in maternal obstetric outcomes when comparing BUP versus methadone treatment. Similar results have been reported in a meta-analysis analyzing the use of methadone and BUP during pregnancy.²³ Studies performed to date have not shown an increased risk of congenital anomalies with the use of BUP-NAL during pregnancy.^24,25

Although there may be differences in newborn outcomes with BUP and methadone, the American College of Obstetricians and Gynecologists does not recommend switching from methadone to BUP during pregnancy because precipitated withdrawal may occur.²⁶ Based on recent studies, the American Society of Addiction Medicine has advised that it is safe to prescribe pregnant patients either BUP or BUP-NAL.^27,28

Medication treatment of OUD with or without intensive counseling

The FDA recently reviewed literature related to the advantages and challenges of combining intensive counseling with medication treatment of OUD.²⁹ The FDA noted that treatment saves lives and encouraged clinicians to initiate medication treatment of OUD or refer the patient to an appropriate clinician or treatment center. Combining medication treatment of OUD with intensive counseling is associated with greater treatment adherence and reduced health care costs. For example, in one study of 4,987 patients with OUD, initiation of counseling within 8 weeks of the start of medication treatment and a BUP dose of 16 mg or greater daily were associated with increased adherence to treatment.³⁰ For patients receiving a BUP dose of less than 16 mg daily, treatment adherence with and without counseling was approximately 325 and 230 days, respectively. When the dose of BUP was 16 mg or greater, treatment adherence with and without counseling was approximately 405 and 320 days, respectively.³⁰

Counseling should always be offered to patients initiating medication treatment of OUD. It should be noted that counseling alone is not a highly effective treatment for OUD.³¹ The FDA recently advised that the lack of availability of intensive counseling should not prevent clinicians from initiating BUP for the treatment of OUD.²⁹ OUD is associated with a high mortalityrate and if counseling is not possible, medication treatment should be initiated. Substantial evidence demonstrates that medication treatment of OUD is associated with many benefits.¹⁶ The FDA advisory committee concluded that OUD treatment decisions should use shared decision making and be supportive and patient centered.²⁹

The opportunities for medication treatment of OUD in primary care practice have expanded due to the recent FDA removal of restrictions on the use of BUP and heightened awareness of the positive public health impact of medication treatment. Challenges to the medication treatment of OUD remain, including stigmatization of OUD, barriers to insurance coverage for BUP, practice costs of treating OUD, and gaps in clinical education. For many pregnant patients, their main point of contact with health care is their obstetrician. By incorporating OUD treatment in pregnancy care, obstetricians will improve the health of the mother and newborn, contributing to the well-being of current and future generations. ●

The Centers for Disease Control and Prevention (CDC) reported 106,699 deaths in 2021 from drug overdose, with the majority being linked to synthetic opioids, including fentanyl and tramadol.¹ This number compares with 42,795 deaths due to motor vehicle accidents and 48,183 deaths due to suicide in 2021.^2,3 Most of the opioid overdose deaths occurred among people aged 25 to 64 years, the peak age of patients cared for by obstetrician-gynecologists. Among pregnant and postpartum persons, mortality due to drug overdose has increased by 81% between 2017 and 2020.⁴

Among pregnant and postpartum patients, drug overdose death is more common than suicide, and the risk for drug overdose death appears to be greatest in the year following delivery.^5,6 In many cases, postpartum patients with OUD have had multiple contacts with the health care system prior to their death, showing that there is an opportunity for therapeutic intervention before the death occurred.⁷ Medication-assisted recovery for OUD involves a comprehensive array of interventions including medication, counseling, and social support. Medication treatment of OUD with BUP or methadone reduces the risk for death but is underutilized among patients with OUD.^6,8 Recent federal legislation has removed restrictions on the use of BUP, increasing the opportunity for primary care clinicians to prescribe it for the treatment of OUD.⁹

Screening and diagnosis of OUD

Screening for OUD is recommended for patients who are at risk for opioid misuse (ie, those who are taking/have taken opioid medications). The OWLS (Overuse, Worrying, Losing interest, and feeling Slowed down, sluggish, or sedated) screening tool is used to detect prescription medication OUD and has 4 questions¹⁰:

1. In the past 3 months did you use your opioid medicines for other purposes—for example, to help you sleep or to help with stress or worry?

2. In the past 3 months did opioid medicines cause you to feel slowed down, sluggish, or sedated?

3. In the past 3 months did opioid medicines cause you to lose interest in your usual activities?

4. In the past 3 months did you worry about your use of opioid medicines? 

Patient agreement with 3 or 4 questions indicates a positive screening test.

If the patient has a positive screening test, a formal diagnosis of OUD can be made using the 11 symptoms outlined in the American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition.¹¹ The diagnosis of mild (2 to 3 symptoms), moderate (4 to 5 symptoms), or severe OUD (6 or more symptoms) is made based on the number of symptoms the patient reports.

Buprenorphine treatment of OUD in primary care

The role of primary care clinicians in the medication treatment of OUD is increasing. Using a nationwide system that tracks prescription medications, investigators reported that, in 2004, psychiatrists wrote 32.2% of all BUP prescriptions; in 2021, however, only 10% of such prescriptions were provided by psychiatrists, with most prescriptions written by non-psychiatrist physicians, nurse practitioners, and physician assistants that year.¹² Innovative telehealth approaches to consultation and medication treatment of OUD are now available—one example is QuickMD.¹³ Such sites are designed to remove barriers to initiating medication treatment of OUD.

The role of primary care clinicians in the management of OUD using BUP and buprenorphine-naloxone (BUP-NAL) has increased due to many factors, including:

• the removal of US Food and Drug Administration (FDA) barriers to prescribing BUP
• the epidemic of OUD and the small size of the addiction specialist workforce, necessitating that primary care clinicians become engaged in the treatment of OUD
• an increase in unobserved initiation of BUP among ambulatory patients, and a parallel decrease in cases of observed initiation in addiction center settings
• the reframing of OUD as a chronic medical problem, with many similarities to diabetes, obesity, dyslipidemia, and hypertension.

Similar to other diseases managed by primary care clinicians, OUD requires long-term chronic treatment with a medicine that, if taken as directed, provides excellent outcomes. Primary care clinicians who prescribe BUP also can optimize longitudinal care for comorbid disorders such as hypertension and diabetes, which are prevalent in people with OUD.

In 2019, New Jersey implemented new guidelines for the treatment of OUD, removing prior authorization barriers, increasing reimbursement for office-based OUD treatment, and establishing regional centers of excellence. The implementation of the new guidelines was followed by a marked increase in BUP prescribers among primary care clinicians, emergency medicine physicians, and advanced practice clinicians.¹⁴

To estimate the public health impact of BUP prescribing by primary care clinicians, investigators simulated patient outcomes in 3 scenarios¹⁵:

1. primary care clinicians refer patients to addiction specialists for OUD treatment

2. primary care clinicians provide BUP services in their practice

3. primary care clinicians provide BUP and harm reduction kits containing syringes and wound care supplies in their practice. 

Strategies 2 and 3 resulted in 14% fewer deaths due to opioid overdose, an increased life expectancy of approximately 2.7 years, and reduced hospital costs. For strategy 3, the incremental cost per life-year saved was $34,400. The investigators noted that prescribing BUP in primary care practice increases practice costs.¹⁵

Treatment with BUP reduces death from opioid overdose, improves patient health, decreases use of illicit opioids, and reduces patient cravings for opioids. BUP is a safe medication and is associated with fewer adverse effects than insulin or warfarin.¹⁶

Continue to: Methadone treatment of OUD...

Methadone is a full opioid agonist approved by the FDA for the treatment of severe pain or OUD. Methadone treatment of OUD is strictly regulated and typically is ordered and administered at an opioid treatment program that is federally licensed. Methadone for OUD treatment cannot be prescribed by a physician to a pharmacy, limiting its use in primary care practice. Methadone used to treat OUD is ordered and dispensed at opioid-treatment programs. Take-home doses of methadone may be available to patients after adherence to the regimen has been established. When used long-term, higher doses of methadone are associated with better adherence, but these higher doses can cause respiratory depression. In a study of 189 pregnant patients taking methadone to treat OUD, daily doses of 60 mg or greater were associated with better treatment retention at delivery and 60 days postpartum, as well as less use of nonprescription opioids.¹⁷ Under limited circumstances methadone can be ordered and dispensed for hospitalized patients with OUD.

Medication treatment of OUD in obstetrics

In the United States, the prevalence of OUD among pregnant patients hospitalized for delivery more than quadrupled from 1999 through 2014.¹⁸ BUP and methadone commonly are used to treat OUD during pregnancy.¹⁹ Among pregnant patients about 5% of buprenorphine prescriptions are written by obstetricians.²⁰ An innovative approach to initiating BUP for pregnant patients with OUD is to use unobserved initiation, which involves outpatient discontinuation of nonprescription opioids to induce mild to moderate withdrawal symptoms followed by initiation of BUP treatment. In one cohort study, 55 pregnant patients used an unobserved outpatient protocol to initiate BUP treatment; 80% of the patients previously had used methadone or BUP. No patient experienced a precipitated withdrawal and 96% of patients returned for their office visit 1 week after initiation of treatment. Eighty-six percent of patients remained in treatment 3 months following initiation of BUP.²¹

Compared with methadone, BUP treatment during pregnancy may result in lower rates of neonatal abstinence syndrome. In one study of pregnant patients who were using methadone (n = 5,056) or BUP (n = 11,272) in late pregnancy, neonatal abstinence syndrome was diagnosed in 69.2% and 52.0% of newborns, respectively (adjusted relative risk, 0.73; 95% confidence interval, 0.71–0.75).²² In addition, compared with methadone, the use of BUP was associated with a reduced risk for low birth weight (14.9% vs 8.3%) and a lower risk for preterm birth (24.9% vs 14.4%). In this study, there were no differences in maternal obstetric outcomes when comparing BUP versus methadone treatment. Similar results have been reported in a meta-analysis analyzing the use of methadone and BUP during pregnancy.²³ Studies performed to date have not shown an increased risk of congenital anomalies with the use of BUP-NAL during pregnancy.^24,25

Although there may be differences in newborn outcomes with BUP and methadone, the American College of Obstetricians and Gynecologists does not recommend switching from methadone to BUP during pregnancy because precipitated withdrawal may occur.²⁶ Based on recent studies, the American Society of Addiction Medicine has advised that it is safe to prescribe pregnant patients either BUP or BUP-NAL.^27,28

Medication treatment of OUD with or without intensive counseling

The FDA recently reviewed literature related to the advantages and challenges of combining intensive counseling with medication treatment of OUD.²⁹ The FDA noted that treatment saves lives and encouraged clinicians to initiate medication treatment of OUD or refer the patient to an appropriate clinician or treatment center. Combining medication treatment of OUD with intensive counseling is associated with greater treatment adherence and reduced health care costs. For example, in one study of 4,987 patients with OUD, initiation of counseling within 8 weeks of the start of medication treatment and a BUP dose of 16 mg or greater daily were associated with increased adherence to treatment.³⁰ For patients receiving a BUP dose of less than 16 mg daily, treatment adherence with and without counseling was approximately 325 and 230 days, respectively. When the dose of BUP was 16 mg or greater, treatment adherence with and without counseling was approximately 405 and 320 days, respectively.³⁰

Counseling should always be offered to patients initiating medication treatment of OUD. It should be noted that counseling alone is not a highly effective treatment for OUD.³¹ The FDA recently advised that the lack of availability of intensive counseling should not prevent clinicians from initiating BUP for the treatment of OUD.²⁹ OUD is associated with a high mortalityrate and if counseling is not possible, medication treatment should be initiated. Substantial evidence demonstrates that medication treatment of OUD is associated with many benefits.¹⁶ The FDA advisory committee concluded that OUD treatment decisions should use shared decision making and be supportive and patient centered.²⁹

The opportunities for medication treatment of OUD in primary care practice have expanded due to the recent FDA removal of restrictions on the use of BUP and heightened awareness of the positive public health impact of medication treatment. Challenges to the medication treatment of OUD remain, including stigmatization of OUD, barriers to insurance coverage for BUP, practice costs of treating OUD, and gaps in clinical education. For many pregnant patients, their main point of contact with health care is their obstetrician. By incorporating OUD treatment in pregnancy care, obstetricians will improve the health of the mother and newborn, contributing to the well-being of current and future generations. ●

The Centers for Disease Control and Prevention (CDC) reported 106,699 deaths in 2021 from drug overdose, with the majority being linked to synthetic opioids, including fentanyl and tramadol.¹ This number compares with 42,795 deaths due to motor vehicle accidents and 48,183 deaths due to suicide in 2021.^2,3 Most of the opioid overdose deaths occurred among people aged 25 to 64 years, the peak age of patients cared for by obstetrician-gynecologists. Among pregnant and postpartum persons, mortality due to drug overdose has increased by 81% between 2017 and 2020.⁴

Among pregnant and postpartum patients, drug overdose death is more common than suicide, and the risk for drug overdose death appears to be greatest in the year following delivery.^5,6 In many cases, postpartum patients with OUD have had multiple contacts with the health care system prior to their death, showing that there is an opportunity for therapeutic intervention before the death occurred.⁷ Medication-assisted recovery for OUD involves a comprehensive array of interventions including medication, counseling, and social support. Medication treatment of OUD with BUP or methadone reduces the risk for death but is underutilized among patients with OUD.^6,8 Recent federal legislation has removed restrictions on the use of BUP, increasing the opportunity for primary care clinicians to prescribe it for the treatment of OUD.⁹

Screening and diagnosis of OUD

Screening for OUD is recommended for patients who are at risk for opioid misuse (ie, those who are taking/have taken opioid medications). The OWLS (Overuse, Worrying, Losing interest, and feeling Slowed down, sluggish, or sedated) screening tool is used to detect prescription medication OUD and has 4 questions¹⁰:

1. In the past 3 months did you use your opioid medicines for other purposes—for example, to help you sleep or to help with stress or worry?

2. In the past 3 months did opioid medicines cause you to feel slowed down, sluggish, or sedated?

3. In the past 3 months did opioid medicines cause you to lose interest in your usual activities?

4. In the past 3 months did you worry about your use of opioid medicines? 

Patient agreement with 3 or 4 questions indicates a positive screening test.

If the patient has a positive screening test, a formal diagnosis of OUD can be made using the 11 symptoms outlined in the American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition.¹¹ The diagnosis of mild (2 to 3 symptoms), moderate (4 to 5 symptoms), or severe OUD (6 or more symptoms) is made based on the number of symptoms the patient reports.

Buprenorphine treatment of OUD in primary care

The role of primary care clinicians in the medication treatment of OUD is increasing. Using a nationwide system that tracks prescription medications, investigators reported that, in 2004, psychiatrists wrote 32.2% of all BUP prescriptions; in 2021, however, only 10% of such prescriptions were provided by psychiatrists, with most prescriptions written by non-psychiatrist physicians, nurse practitioners, and physician assistants that year.¹² Innovative telehealth approaches to consultation and medication treatment of OUD are now available—one example is QuickMD.¹³ Such sites are designed to remove barriers to initiating medication treatment of OUD.

The role of primary care clinicians in the management of OUD using BUP and buprenorphine-naloxone (BUP-NAL) has increased due to many factors, including:

• the removal of US Food and Drug Administration (FDA) barriers to prescribing BUP
• the epidemic of OUD and the small size of the addiction specialist workforce, necessitating that primary care clinicians become engaged in the treatment of OUD
• an increase in unobserved initiation of BUP among ambulatory patients, and a parallel decrease in cases of observed initiation in addiction center settings
• the reframing of OUD as a chronic medical problem, with many similarities to diabetes, obesity, dyslipidemia, and hypertension.

Similar to other diseases managed by primary care clinicians, OUD requires long-term chronic treatment with a medicine that, if taken as directed, provides excellent outcomes. Primary care clinicians who prescribe BUP also can optimize longitudinal care for comorbid disorders such as hypertension and diabetes, which are prevalent in people with OUD.

In 2019, New Jersey implemented new guidelines for the treatment of OUD, removing prior authorization barriers, increasing reimbursement for office-based OUD treatment, and establishing regional centers of excellence. The implementation of the new guidelines was followed by a marked increase in BUP prescribers among primary care clinicians, emergency medicine physicians, and advanced practice clinicians.¹⁴

To estimate the public health impact of BUP prescribing by primary care clinicians, investigators simulated patient outcomes in 3 scenarios¹⁵:

1. primary care clinicians refer patients to addiction specialists for OUD treatment

2. primary care clinicians provide BUP services in their practice

3. primary care clinicians provide BUP and harm reduction kits containing syringes and wound care supplies in their practice. 

Strategies 2 and 3 resulted in 14% fewer deaths due to opioid overdose, an increased life expectancy of approximately 2.7 years, and reduced hospital costs. For strategy 3, the incremental cost per life-year saved was $34,400. The investigators noted that prescribing BUP in primary care practice increases practice costs.¹⁵

Treatment with BUP reduces death from opioid overdose, improves patient health, decreases use of illicit opioids, and reduces patient cravings for opioids. BUP is a safe medication and is associated with fewer adverse effects than insulin or warfarin.¹⁶

Continue to: Methadone treatment of OUD...

Methadone is a full opioid agonist approved by the FDA for the treatment of severe pain or OUD. Methadone treatment of OUD is strictly regulated and typically is ordered and administered at an opioid treatment program that is federally licensed. Methadone for OUD treatment cannot be prescribed by a physician to a pharmacy, limiting its use in primary care practice. Methadone used to treat OUD is ordered and dispensed at opioid-treatment programs. Take-home doses of methadone may be available to patients after adherence to the regimen has been established. When used long-term, higher doses of methadone are associated with better adherence, but these higher doses can cause respiratory depression. In a study of 189 pregnant patients taking methadone to treat OUD, daily doses of 60 mg or greater were associated with better treatment retention at delivery and 60 days postpartum, as well as less use of nonprescription opioids.¹⁷ Under limited circumstances methadone can be ordered and dispensed for hospitalized patients with OUD.

Medication treatment of OUD in obstetrics

In the United States, the prevalence of OUD among pregnant patients hospitalized for delivery more than quadrupled from 1999 through 2014.¹⁸ BUP and methadone commonly are used to treat OUD during pregnancy.¹⁹ Among pregnant patients about 5% of buprenorphine prescriptions are written by obstetricians.²⁰ An innovative approach to initiating BUP for pregnant patients with OUD is to use unobserved initiation, which involves outpatient discontinuation of nonprescription opioids to induce mild to moderate withdrawal symptoms followed by initiation of BUP treatment. In one cohort study, 55 pregnant patients used an unobserved outpatient protocol to initiate BUP treatment; 80% of the patients previously had used methadone or BUP. No patient experienced a precipitated withdrawal and 96% of patients returned for their office visit 1 week after initiation of treatment. Eighty-six percent of patients remained in treatment 3 months following initiation of BUP.²¹

Compared with methadone, BUP treatment during pregnancy may result in lower rates of neonatal abstinence syndrome. In one study of pregnant patients who were using methadone (n = 5,056) or BUP (n = 11,272) in late pregnancy, neonatal abstinence syndrome was diagnosed in 69.2% and 52.0% of newborns, respectively (adjusted relative risk, 0.73; 95% confidence interval, 0.71–0.75).²² In addition, compared with methadone, the use of BUP was associated with a reduced risk for low birth weight (14.9% vs 8.3%) and a lower risk for preterm birth (24.9% vs 14.4%). In this study, there were no differences in maternal obstetric outcomes when comparing BUP versus methadone treatment. Similar results have been reported in a meta-analysis analyzing the use of methadone and BUP during pregnancy.²³ Studies performed to date have not shown an increased risk of congenital anomalies with the use of BUP-NAL during pregnancy.^24,25

Although there may be differences in newborn outcomes with BUP and methadone, the American College of Obstetricians and Gynecologists does not recommend switching from methadone to BUP during pregnancy because precipitated withdrawal may occur.²⁶ Based on recent studies, the American Society of Addiction Medicine has advised that it is safe to prescribe pregnant patients either BUP or BUP-NAL.^27,28

Medication treatment of OUD with or without intensive counseling

The FDA recently reviewed literature related to the advantages and challenges of combining intensive counseling with medication treatment of OUD.²⁹ The FDA noted that treatment saves lives and encouraged clinicians to initiate medication treatment of OUD or refer the patient to an appropriate clinician or treatment center. Combining medication treatment of OUD with intensive counseling is associated with greater treatment adherence and reduced health care costs. For example, in one study of 4,987 patients with OUD, initiation of counseling within 8 weeks of the start of medication treatment and a BUP dose of 16 mg or greater daily were associated with increased adherence to treatment.³⁰ For patients receiving a BUP dose of less than 16 mg daily, treatment adherence with and without counseling was approximately 325 and 230 days, respectively. When the dose of BUP was 16 mg or greater, treatment adherence with and without counseling was approximately 405 and 320 days, respectively.³⁰

Counseling should always be offered to patients initiating medication treatment of OUD. It should be noted that counseling alone is not a highly effective treatment for OUD.³¹ The FDA recently advised that the lack of availability of intensive counseling should not prevent clinicians from initiating BUP for the treatment of OUD.²⁹ OUD is associated with a high mortalityrate and if counseling is not possible, medication treatment should be initiated. Substantial evidence demonstrates that medication treatment of OUD is associated with many benefits.¹⁶ The FDA advisory committee concluded that OUD treatment decisions should use shared decision making and be supportive and patient centered.²⁹

The opportunities for medication treatment of OUD in primary care practice have expanded due to the recent FDA removal of restrictions on the use of BUP and heightened awareness of the positive public health impact of medication treatment. Challenges to the medication treatment of OUD remain, including stigmatization of OUD, barriers to insurance coverage for BUP, practice costs of treating OUD, and gaps in clinical education. For many pregnant patients, their main point of contact with health care is their obstetrician. By incorporating OUD treatment in pregnancy care, obstetricians will improve the health of the mother and newborn, contributing to the well-being of current and future generations. ●

ILLUSTRATION: KIMBERLY MARTENS FOR OBG MANAGEMENT

CASE Painful, heavy menstruation and recurrent pregnancy loss

A 37-year-old woman (G3P0030) with a history of recurrent pregnancy loss presents for evaluation. She had 3 losses—most recently a miscarriage at 22 weeks with a cerclage in place. She did not undergo any surgical procedures for these losses. Hormonal and thrombophilia workup is negative and semen analysis is normal. She reports a history of painful, heavy periods for many years, as well as dyspareunia and occasional post-coital bleeding. Past medical history was otherwise unremarkable. Pelvic magnetic resonance imaging (MRI) revealed focal thickening of the junctional zone up to 15 mm with 2 foci of T2 hyperintensities suggesting adenomyosis (FIGURE 1).

How do you counsel this patient regarding the MRI findings and their impact on her fertility?

Adenomyosis is a condition in which endometrial glands and stroma are abnormally present in the uterine myometrium, resulting in smooth muscle hypertrophy and abnormal uterine contractility. Traditional teaching describes a woman in her 40s with heavy and painful menses, a “boggy uterus” on examination, who has completed childbearing and desires definitive treatment. Histologic diagnosis of adenomyosis is made from the uterine specimen at the time of hysterectomy, invariably confounding our understanding of the epidemiology of adenomyosis.

More recently, however, we are beginning to learn that this narrative is misguided. Imaging changes of adenomyosis can be seen in women who desire future fertility and in adolescents with severe dysmenorrhea, suggesting an earlier age of incidence.¹ In a recent systematic review, prevalence estimates ranged from 15% to 67%, owing to varying diagnostic methods and patient inclusion criteria.² It is increasingly being recognized as a primary contributor to infertility, with one study estimating a 30% prevalence of infertility in women with adenomyosis.³ Moreover, treatment with gonadotropin-releasing hormone agonists and/or surgical excision may improve fertility outcomes.⁴

As we learn more about this prevalent and life-altering condition, we owe it to our patients to consider this diagnosis when counseling on dysmenorrhea, heavy menstrual bleeding, or infertility.

Anatomy of the myometrium

The myometrium is composed of the inner and outer myometrium: the inner myometrium (IM) and endometrium are of Müllerian origin, and the outer myometrium (OM) is of mesenchymal origin. The IM thickens in response to steroid hormones during the menstrual cycle with metaplasia of endometrial stromal cells into myocytes and back again, whereas the OM is not responsive to hormones.⁵ Emerging literature suggests the OM is further divided into a middle and outer section based on different histologic morphologies, though the clinical implications of this are not understood.⁶ The term “junctional zone” (JZ) refers to the imaging appearance of what is thought to be the IM. Interestingly it cannot be identified on traditional hematoxylin and eosin staining. When the JZ is thickened or demonstrates irregular borders, it is used as a diagnostic marker for adenomyosis and is postulated to play an important role in adenomyosis pathophysiology, particularly heavy menstrual bleeding and infertility.⁷

Continue to: Subtypes of adenomyosis...

Subtypes of adenomyosis

While various disease classifications have been suggested for adenomyosis, to date there is no international consensus. Adenomyosis is typically described in 3 forms: diffuse, focal, or adenomyoma.⁸ As implied, the term focal adenomyosis refers to discrete lesions surrounded by normal myometrium, whereas abnormal glandular changes are pervasive throughout the myometrium in diffuse disease. Adenomyomas are a subgroup of focal adenomyosis that are thought to be surrounded by leiomyomatous smooth muscle and may be well demarcated on imaging.⁹

Recent research uses novel histologic imaging techniques to explore adenomyotic growth patterns in 3-dimensional (3D) reconstructions. Combining tissue-clearing methods with light-sheet fluorescence microscopy enables highly detailed 3D representations of the protein and nucleic acid structure of organs.¹⁰ For example, Yamaguchi and colleagues used this technology to explore the 3D morphological features of adenomyotic tissue and observed direct invasion of the endometrial glands into the myometrium and an “ant colony ̶ like network” of ectopic endometrial glands in the myometrium (FIGURE 2).¹¹ These abnormal glandular networks have been visualized beyond the IM, which may not be captured on ultrasonography or MRI. While this work is still in its infancy, it has the potential to provide important insight into disease pathogenesis and to inform future therapy.

Pathogenesis

Proposed mechanisms for the development of adenomyosis include endometrial invasion, tissue injury and repair (TIAR) mechanisms, and the stem cell theory.¹² According to the endometrial invasion theory, glandular epithelial cells from the basalis layer invaginate through an altered IM, slipping through weak muscle fibers and attracted by certain growth factors. In the TIAR mechanism theory, micro- or macro-trauma to the IM (whether from pregnancy, surgery, or infection) results in chronic proliferation and inflammation leading to the development of adenomyosis. Finally, the stem cell theory proposes that adenomyosis might develop from de novo ectopic endometrial tissue.

While the exact pathogenesis of adenomyosis is largely unknown, it has been associated with predictable molecular changes in the endometrium and surrounding myometrium.¹² Myometrial hypercontractility is seen in patients with adenomyosis and dysmenorrhea, whereas neovascularization, high microvessel density, and abnormal uterine contractility are seen in those with abnormal uterine bleeding.¹³ In patients with infertility, increased inflammation, abnormal endometrial receptivity, and alterations in the myometrial architecture have been suggested to impair contractility and sperm transport.^12,14

Differential growth factor expression and abnormal estrogen and progesterone signaling pathways have been observed in the IM in patients with adenomyosis, along with dysregulation of immune factors and increased inflammatory oxidative stress.¹² This in turn results in myometrial hypertrophy and fibrosis, impairing normal uterine contractility patterns. This abnormal contractility may alter sperm transport and embryo implantation, and animal models that target pathways leading to fibrosis may improve endometrial receptivity.^14,15 Further research is needed to elucidate specific molecular pathways and their complex interplay in this disease.

Continue to: Diagnosis...

The gold standard for diagnosis of adenomyosis is histopathology from hysterectomy specimens, but specific definitions vary. Published criteria include endometrial glands within the myometrial layer greater than 0.5 to 1 low power field from the basal layer of the endometrium, endometrial glands extending deeper than 25% of the myometrial thickness, or endometrial glands a certain distance (ranging from 1-3 mm) from the basalis layer of the endometrium.¹⁶ Various methods of non-hysterectomy tissue sampling have been proposed for diagnosis, including needle, hysteroscopic, or laparoscopic sampling, but the sensitivity of these methods is poor.¹⁷ Limiting the diagnosis of adenomyosis to specimen pathology relies on invasive methods and clearly we cannot confirm the diagnosis by hysterectomy in patients with a desire for future fertility. It is for this reason that the prevalence of the disease is widely unknown.

The alternative to pathologic diagnosis is to identify radiologic changes that are associated with adenomyosis via either transvaginal ultrasound (TVUS) or MRI. Features suggestive of adenomyosis on MRI overlap with TVUS features, including uterine enlargement, anteroposterior myometrial asymmetry, T1- or T2-intense myometrial cysts or foci, and a thickened JZ.¹⁸ A JZ thicker than 12 mm has been thought to be predictive of adenomyosis, whereas a thickness of less than 8 mm is predictive of its absence, although the JZ may vary in thickness with the menstrual cycle.^19,20 A 2021 systematic review and meta-analysis comparing MRI diagnosis with histopathologic findings reported a pooled sensitivity and specificity of 60% and 96%, respectively.²¹ The reported range for sensitivity and specificity is wide: 70% to 93% for sensitivity and 67% to 93% for specificity.^22-24

Key TVUS features associated with adenomyosis were defined in 2015 in a consensus statement released by the Morphological Uterus Sonographic Assessment (MUSA) group.²⁵ These include a globally enlarged uterus, anteroposterior myometrial asymmetry, myometrial cysts, fan-shaped shadowing, mixed myometrial echogenicity, translesional vascularity, echogenic subendometrial lines and buds, and a thickened, irregular or discontinuous JZ (FIGURES 3 and 4).²⁵ The accuracy of ultrasonographic diagnosis of adenomyosis using these features has been investigated in multiple systematic reviews and meta-analyses, most recently by Liu and colleagues who found a pooled sensitivity of TVUS of 81% and pooled specificity of 87%.²³ The range for ultrasonographic sensitivity and specificity is wide, however, ranging from 33% to 84% for sensitivity and 64% to 100% for specificity.²² Consensus is lacking as to which TVUS features are most predictive of adenomyosis, but in general, the combination of multiple MUSA criteria (particularly myometrial cysts and irregular JZ on 3D imaging) appears to be more accurate than any one feature alone.²³ The presence of fibroids may decrease the sensitivity of TVUS, and one study suggested elastography may increase the accuracy of TVUS.^24,26 Moreover, given that most radiologists receive limited training on the MUSA criteria, it behooves gynecologists to become familiar with these sonographic features to be able to identify adenomyosis in our patients.

Clinical presentation

While many women who are later diagnosed with adenomyosis are asymptomatic, the disease can present with heavy menstrual bleeding and dysmenorrhea, which occur in 50% and 30% of patients, respectively.²⁸ Other symptoms include dyspareunia and infertility. Symptoms were previously reported to develop between the ages of 40 and 50 years; however, this is biased by diagnosis at the time of hysterectomy and the fact that younger patients are less likely to undergo definitive surgery. When using imaging criteria for diagnosis, adenomyosis might be more responsible for dysmenorrhea and chronic pelvic pain in younger patients than previously appreciated.^1,29 In a recent study reviewing TVUS in 270 adolescents for any reason, adenomyosis was present in 5% of cases and this increased up to 44% in the presence of endometriosis.³⁰

Adenomyosis often co-exists and shares similar clinical presentations with other gynecologic pathologies such as endometriosis and fibroids, making diagnosis on symptomatology alone challenging. Concurrent adenomyosis has been found in up to 73% and 57% of patients with suspected or diagnosed endometriosis and fibroids, respectively.^31,32 Accumulating evidence suggests that pelvic pain previously attributed to endometriosis may in fact be a result of adenomyosis; for example, persistent pelvic pain after optimal resection of endometriosis may be confounded by the presence of adenomyosis.²⁹ In one study of 155 patients with complete resection of deep infiltrating endometriosis, persistent pelvic pain was significantly associated with the presence of adenomyosis on imaging.³³

Adenomyosis is increasingly being recognized at the time of infertility evaluation with an estimated prevalence of 30% in women with infertility.³ Among women with infertility, adenomyosis has been associated with a lower clinical pregnancy rate, higher miscarriage rate, and lower live birth rate, as well as obstetric complications such as abnormal placentation.^34-36 A study of 37 baboons found the histologic diagnosis of adenomyosis alone at necropsy was associated with a 20-fold increased risk of lifelong infertility (odds ratio [OR], 20.1; 95% CI, 2.1-921), whereas presence of endometriosis was associated with a nonsignificant 3-fold risk of lifelong infertility (OR, 3.6; 95% CI, 0.9-15.8).³⁷

In women with endometriosis and infertility, co-existing adenomyosis portends worse fertility outcomes. In a retrospective study of 244 women who underwent endometriosis surgery, more than five features of adenomyosis on imaging was associated with higher rates of infertility, in vitro fertilization treatments, and a higher number of in vitro fertilization cycles.³¹ Moreover, in women who underwent surgery for deep infiltrating endometriosis, the presence of adenomyosis on imaging was associated with a 68% reduction in likelihood of pregnancy after surgery.³⁸

Conclusion

As we begin to learn about adenomyosis, our misconceptions become more evident. The notion that it largely affects women at the end of their reproductive lives is biased by using histopathology at hysterectomy as the gold standard for diagnosis. Lack of definitive histologic or imaging criteria and biopsy techniques add to the diagnostic challenge. This in turn leads to inaccurate estimates of incidence and prevalence, as we assume patients’ symptoms must be attributable to what we can see at the time of surgery (for example, Stage I or II endometriosis), rather than what we cannot see. We now know that adenomyosis is present in women of all ages, including adolescents, and can significantly contribute to reduced fertility and quality of life. We owe it to our patients to consider this condition in the differential diagnosis of dysmenorrhea, heavy menstrual bleeding, dyspareunia, and infertility.

CASE Resolved

The patient underwent targeted hysteroscopic resection of adenomyosis (FIGURE 5) and conceived spontaneously the following year. ●

ILLUSTRATION: KIMBERLY MARTENS FOR OBG MANAGEMENT

CASE Painful, heavy menstruation and recurrent pregnancy loss

A 37-year-old woman (G3P0030) with a history of recurrent pregnancy loss presents for evaluation. She had 3 losses—most recently a miscarriage at 22 weeks with a cerclage in place. She did not undergo any surgical procedures for these losses. Hormonal and thrombophilia workup is negative and semen analysis is normal. She reports a history of painful, heavy periods for many years, as well as dyspareunia and occasional post-coital bleeding. Past medical history was otherwise unremarkable. Pelvic magnetic resonance imaging (MRI) revealed focal thickening of the junctional zone up to 15 mm with 2 foci of T2 hyperintensities suggesting adenomyosis (FIGURE 1).

How do you counsel this patient regarding the MRI findings and their impact on her fertility?

Adenomyosis is a condition in which endometrial glands and stroma are abnormally present in the uterine myometrium, resulting in smooth muscle hypertrophy and abnormal uterine contractility. Traditional teaching describes a woman in her 40s with heavy and painful menses, a “boggy uterus” on examination, who has completed childbearing and desires definitive treatment. Histologic diagnosis of adenomyosis is made from the uterine specimen at the time of hysterectomy, invariably confounding our understanding of the epidemiology of adenomyosis.

More recently, however, we are beginning to learn that this narrative is misguided. Imaging changes of adenomyosis can be seen in women who desire future fertility and in adolescents with severe dysmenorrhea, suggesting an earlier age of incidence.¹ In a recent systematic review, prevalence estimates ranged from 15% to 67%, owing to varying diagnostic methods and patient inclusion criteria.² It is increasingly being recognized as a primary contributor to infertility, with one study estimating a 30% prevalence of infertility in women with adenomyosis.³ Moreover, treatment with gonadotropin-releasing hormone agonists and/or surgical excision may improve fertility outcomes.⁴

As we learn more about this prevalent and life-altering condition, we owe it to our patients to consider this diagnosis when counseling on dysmenorrhea, heavy menstrual bleeding, or infertility.

Anatomy of the myometrium

The myometrium is composed of the inner and outer myometrium: the inner myometrium (IM) and endometrium are of Müllerian origin, and the outer myometrium (OM) is of mesenchymal origin. The IM thickens in response to steroid hormones during the menstrual cycle with metaplasia of endometrial stromal cells into myocytes and back again, whereas the OM is not responsive to hormones.⁵ Emerging literature suggests the OM is further divided into a middle and outer section based on different histologic morphologies, though the clinical implications of this are not understood.⁶ The term “junctional zone” (JZ) refers to the imaging appearance of what is thought to be the IM. Interestingly it cannot be identified on traditional hematoxylin and eosin staining. When the JZ is thickened or demonstrates irregular borders, it is used as a diagnostic marker for adenomyosis and is postulated to play an important role in adenomyosis pathophysiology, particularly heavy menstrual bleeding and infertility.⁷

Continue to: Subtypes of adenomyosis...

Subtypes of adenomyosis

While various disease classifications have been suggested for adenomyosis, to date there is no international consensus. Adenomyosis is typically described in 3 forms: diffuse, focal, or adenomyoma.⁸ As implied, the term focal adenomyosis refers to discrete lesions surrounded by normal myometrium, whereas abnormal glandular changes are pervasive throughout the myometrium in diffuse disease. Adenomyomas are a subgroup of focal adenomyosis that are thought to be surrounded by leiomyomatous smooth muscle and may be well demarcated on imaging.⁹

Recent research uses novel histologic imaging techniques to explore adenomyotic growth patterns in 3-dimensional (3D) reconstructions. Combining tissue-clearing methods with light-sheet fluorescence microscopy enables highly detailed 3D representations of the protein and nucleic acid structure of organs.¹⁰ For example, Yamaguchi and colleagues used this technology to explore the 3D morphological features of adenomyotic tissue and observed direct invasion of the endometrial glands into the myometrium and an “ant colony ̶ like network” of ectopic endometrial glands in the myometrium (FIGURE 2).¹¹ These abnormal glandular networks have been visualized beyond the IM, which may not be captured on ultrasonography or MRI. While this work is still in its infancy, it has the potential to provide important insight into disease pathogenesis and to inform future therapy.

Pathogenesis

Proposed mechanisms for the development of adenomyosis include endometrial invasion, tissue injury and repair (TIAR) mechanisms, and the stem cell theory.¹² According to the endometrial invasion theory, glandular epithelial cells from the basalis layer invaginate through an altered IM, slipping through weak muscle fibers and attracted by certain growth factors. In the TIAR mechanism theory, micro- or macro-trauma to the IM (whether from pregnancy, surgery, or infection) results in chronic proliferation and inflammation leading to the development of adenomyosis. Finally, the stem cell theory proposes that adenomyosis might develop from de novo ectopic endometrial tissue.

While the exact pathogenesis of adenomyosis is largely unknown, it has been associated with predictable molecular changes in the endometrium and surrounding myometrium.¹² Myometrial hypercontractility is seen in patients with adenomyosis and dysmenorrhea, whereas neovascularization, high microvessel density, and abnormal uterine contractility are seen in those with abnormal uterine bleeding.¹³ In patients with infertility, increased inflammation, abnormal endometrial receptivity, and alterations in the myometrial architecture have been suggested to impair contractility and sperm transport.^12,14

Differential growth factor expression and abnormal estrogen and progesterone signaling pathways have been observed in the IM in patients with adenomyosis, along with dysregulation of immune factors and increased inflammatory oxidative stress.¹² This in turn results in myometrial hypertrophy and fibrosis, impairing normal uterine contractility patterns. This abnormal contractility may alter sperm transport and embryo implantation, and animal models that target pathways leading to fibrosis may improve endometrial receptivity.^14,15 Further research is needed to elucidate specific molecular pathways and their complex interplay in this disease.

Continue to: Diagnosis...

The gold standard for diagnosis of adenomyosis is histopathology from hysterectomy specimens, but specific definitions vary. Published criteria include endometrial glands within the myometrial layer greater than 0.5 to 1 low power field from the basal layer of the endometrium, endometrial glands extending deeper than 25% of the myometrial thickness, or endometrial glands a certain distance (ranging from 1-3 mm) from the basalis layer of the endometrium.¹⁶ Various methods of non-hysterectomy tissue sampling have been proposed for diagnosis, including needle, hysteroscopic, or laparoscopic sampling, but the sensitivity of these methods is poor.¹⁷ Limiting the diagnosis of adenomyosis to specimen pathology relies on invasive methods and clearly we cannot confirm the diagnosis by hysterectomy in patients with a desire for future fertility. It is for this reason that the prevalence of the disease is widely unknown.

The alternative to pathologic diagnosis is to identify radiologic changes that are associated with adenomyosis via either transvaginal ultrasound (TVUS) or MRI. Features suggestive of adenomyosis on MRI overlap with TVUS features, including uterine enlargement, anteroposterior myometrial asymmetry, T1- or T2-intense myometrial cysts or foci, and a thickened JZ.¹⁸ A JZ thicker than 12 mm has been thought to be predictive of adenomyosis, whereas a thickness of less than 8 mm is predictive of its absence, although the JZ may vary in thickness with the menstrual cycle.^19,20 A 2021 systematic review and meta-analysis comparing MRI diagnosis with histopathologic findings reported a pooled sensitivity and specificity of 60% and 96%, respectively.²¹ The reported range for sensitivity and specificity is wide: 70% to 93% for sensitivity and 67% to 93% for specificity.^22-24

Key TVUS features associated with adenomyosis were defined in 2015 in a consensus statement released by the Morphological Uterus Sonographic Assessment (MUSA) group.²⁵ These include a globally enlarged uterus, anteroposterior myometrial asymmetry, myometrial cysts, fan-shaped shadowing, mixed myometrial echogenicity, translesional vascularity, echogenic subendometrial lines and buds, and a thickened, irregular or discontinuous JZ (FIGURES 3 and 4).²⁵ The accuracy of ultrasonographic diagnosis of adenomyosis using these features has been investigated in multiple systematic reviews and meta-analyses, most recently by Liu and colleagues who found a pooled sensitivity of TVUS of 81% and pooled specificity of 87%.²³ The range for ultrasonographic sensitivity and specificity is wide, however, ranging from 33% to 84% for sensitivity and 64% to 100% for specificity.²² Consensus is lacking as to which TVUS features are most predictive of adenomyosis, but in general, the combination of multiple MUSA criteria (particularly myometrial cysts and irregular JZ on 3D imaging) appears to be more accurate than any one feature alone.²³ The presence of fibroids may decrease the sensitivity of TVUS, and one study suggested elastography may increase the accuracy of TVUS.^24,26 Moreover, given that most radiologists receive limited training on the MUSA criteria, it behooves gynecologists to become familiar with these sonographic features to be able to identify adenomyosis in our patients.

Clinical presentation

While many women who are later diagnosed with adenomyosis are asymptomatic, the disease can present with heavy menstrual bleeding and dysmenorrhea, which occur in 50% and 30% of patients, respectively.²⁸ Other symptoms include dyspareunia and infertility. Symptoms were previously reported to develop between the ages of 40 and 50 years; however, this is biased by diagnosis at the time of hysterectomy and the fact that younger patients are less likely to undergo definitive surgery. When using imaging criteria for diagnosis, adenomyosis might be more responsible for dysmenorrhea and chronic pelvic pain in younger patients than previously appreciated.^1,29 In a recent study reviewing TVUS in 270 adolescents for any reason, adenomyosis was present in 5% of cases and this increased up to 44% in the presence of endometriosis.³⁰

Adenomyosis often co-exists and shares similar clinical presentations with other gynecologic pathologies such as endometriosis and fibroids, making diagnosis on symptomatology alone challenging. Concurrent adenomyosis has been found in up to 73% and 57% of patients with suspected or diagnosed endometriosis and fibroids, respectively.^31,32 Accumulating evidence suggests that pelvic pain previously attributed to endometriosis may in fact be a result of adenomyosis; for example, persistent pelvic pain after optimal resection of endometriosis may be confounded by the presence of adenomyosis.²⁹ In one study of 155 patients with complete resection of deep infiltrating endometriosis, persistent pelvic pain was significantly associated with the presence of adenomyosis on imaging.³³

Adenomyosis is increasingly being recognized at the time of infertility evaluation with an estimated prevalence of 30% in women with infertility.³ Among women with infertility, adenomyosis has been associated with a lower clinical pregnancy rate, higher miscarriage rate, and lower live birth rate, as well as obstetric complications such as abnormal placentation.^34-36 A study of 37 baboons found the histologic diagnosis of adenomyosis alone at necropsy was associated with a 20-fold increased risk of lifelong infertility (odds ratio [OR], 20.1; 95% CI, 2.1-921), whereas presence of endometriosis was associated with a nonsignificant 3-fold risk of lifelong infertility (OR, 3.6; 95% CI, 0.9-15.8).³⁷

In women with endometriosis and infertility, co-existing adenomyosis portends worse fertility outcomes. In a retrospective study of 244 women who underwent endometriosis surgery, more than five features of adenomyosis on imaging was associated with higher rates of infertility, in vitro fertilization treatments, and a higher number of in vitro fertilization cycles.³¹ Moreover, in women who underwent surgery for deep infiltrating endometriosis, the presence of adenomyosis on imaging was associated with a 68% reduction in likelihood of pregnancy after surgery.³⁸

Conclusion

As we begin to learn about adenomyosis, our misconceptions become more evident. The notion that it largely affects women at the end of their reproductive lives is biased by using histopathology at hysterectomy as the gold standard for diagnosis. Lack of definitive histologic or imaging criteria and biopsy techniques add to the diagnostic challenge. This in turn leads to inaccurate estimates of incidence and prevalence, as we assume patients’ symptoms must be attributable to what we can see at the time of surgery (for example, Stage I or II endometriosis), rather than what we cannot see. We now know that adenomyosis is present in women of all ages, including adolescents, and can significantly contribute to reduced fertility and quality of life. We owe it to our patients to consider this condition in the differential diagnosis of dysmenorrhea, heavy menstrual bleeding, dyspareunia, and infertility.

CASE Resolved

The patient underwent targeted hysteroscopic resection of adenomyosis (FIGURE 5) and conceived spontaneously the following year. ●

ILLUSTRATION: KIMBERLY MARTENS FOR OBG MANAGEMENT

CASE Painful, heavy menstruation and recurrent pregnancy loss

A 37-year-old woman (G3P0030) with a history of recurrent pregnancy loss presents for evaluation. She had 3 losses—most recently a miscarriage at 22 weeks with a cerclage in place. She did not undergo any surgical procedures for these losses. Hormonal and thrombophilia workup is negative and semen analysis is normal. She reports a history of painful, heavy periods for many years, as well as dyspareunia and occasional post-coital bleeding. Past medical history was otherwise unremarkable. Pelvic magnetic resonance imaging (MRI) revealed focal thickening of the junctional zone up to 15 mm with 2 foci of T2 hyperintensities suggesting adenomyosis (FIGURE 1).

How do you counsel this patient regarding the MRI findings and their impact on her fertility?

Adenomyosis is a condition in which endometrial glands and stroma are abnormally present in the uterine myometrium, resulting in smooth muscle hypertrophy and abnormal uterine contractility. Traditional teaching describes a woman in her 40s with heavy and painful menses, a “boggy uterus” on examination, who has completed childbearing and desires definitive treatment. Histologic diagnosis of adenomyosis is made from the uterine specimen at the time of hysterectomy, invariably confounding our understanding of the epidemiology of adenomyosis.

More recently, however, we are beginning to learn that this narrative is misguided. Imaging changes of adenomyosis can be seen in women who desire future fertility and in adolescents with severe dysmenorrhea, suggesting an earlier age of incidence.¹ In a recent systematic review, prevalence estimates ranged from 15% to 67%, owing to varying diagnostic methods and patient inclusion criteria.² It is increasingly being recognized as a primary contributor to infertility, with one study estimating a 30% prevalence of infertility in women with adenomyosis.³ Moreover, treatment with gonadotropin-releasing hormone agonists and/or surgical excision may improve fertility outcomes.⁴

As we learn more about this prevalent and life-altering condition, we owe it to our patients to consider this diagnosis when counseling on dysmenorrhea, heavy menstrual bleeding, or infertility.

Anatomy of the myometrium

The myometrium is composed of the inner and outer myometrium: the inner myometrium (IM) and endometrium are of Müllerian origin, and the outer myometrium (OM) is of mesenchymal origin. The IM thickens in response to steroid hormones during the menstrual cycle with metaplasia of endometrial stromal cells into myocytes and back again, whereas the OM is not responsive to hormones.⁵ Emerging literature suggests the OM is further divided into a middle and outer section based on different histologic morphologies, though the clinical implications of this are not understood.⁶ The term “junctional zone” (JZ) refers to the imaging appearance of what is thought to be the IM. Interestingly it cannot be identified on traditional hematoxylin and eosin staining. When the JZ is thickened or demonstrates irregular borders, it is used as a diagnostic marker for adenomyosis and is postulated to play an important role in adenomyosis pathophysiology, particularly heavy menstrual bleeding and infertility.⁷

Continue to: Subtypes of adenomyosis...

Subtypes of adenomyosis

While various disease classifications have been suggested for adenomyosis, to date there is no international consensus. Adenomyosis is typically described in 3 forms: diffuse, focal, or adenomyoma.⁸ As implied, the term focal adenomyosis refers to discrete lesions surrounded by normal myometrium, whereas abnormal glandular changes are pervasive throughout the myometrium in diffuse disease. Adenomyomas are a subgroup of focal adenomyosis that are thought to be surrounded by leiomyomatous smooth muscle and may be well demarcated on imaging.⁹

Recent research uses novel histologic imaging techniques to explore adenomyotic growth patterns in 3-dimensional (3D) reconstructions. Combining tissue-clearing methods with light-sheet fluorescence microscopy enables highly detailed 3D representations of the protein and nucleic acid structure of organs.¹⁰ For example, Yamaguchi and colleagues used this technology to explore the 3D morphological features of adenomyotic tissue and observed direct invasion of the endometrial glands into the myometrium and an “ant colony ̶ like network” of ectopic endometrial glands in the myometrium (FIGURE 2).¹¹ These abnormal glandular networks have been visualized beyond the IM, which may not be captured on ultrasonography or MRI. While this work is still in its infancy, it has the potential to provide important insight into disease pathogenesis and to inform future therapy.

Pathogenesis

Proposed mechanisms for the development of adenomyosis include endometrial invasion, tissue injury and repair (TIAR) mechanisms, and the stem cell theory.¹² According to the endometrial invasion theory, glandular epithelial cells from the basalis layer invaginate through an altered IM, slipping through weak muscle fibers and attracted by certain growth factors. In the TIAR mechanism theory, micro- or macro-trauma to the IM (whether from pregnancy, surgery, or infection) results in chronic proliferation and inflammation leading to the development of adenomyosis. Finally, the stem cell theory proposes that adenomyosis might develop from de novo ectopic endometrial tissue.

While the exact pathogenesis of adenomyosis is largely unknown, it has been associated with predictable molecular changes in the endometrium and surrounding myometrium.¹² Myometrial hypercontractility is seen in patients with adenomyosis and dysmenorrhea, whereas neovascularization, high microvessel density, and abnormal uterine contractility are seen in those with abnormal uterine bleeding.¹³ In patients with infertility, increased inflammation, abnormal endometrial receptivity, and alterations in the myometrial architecture have been suggested to impair contractility and sperm transport.^12,14

Differential growth factor expression and abnormal estrogen and progesterone signaling pathways have been observed in the IM in patients with adenomyosis, along with dysregulation of immune factors and increased inflammatory oxidative stress.¹² This in turn results in myometrial hypertrophy and fibrosis, impairing normal uterine contractility patterns. This abnormal contractility may alter sperm transport and embryo implantation, and animal models that target pathways leading to fibrosis may improve endometrial receptivity.^14,15 Further research is needed to elucidate specific molecular pathways and their complex interplay in this disease.

Continue to: Diagnosis...

The gold standard for diagnosis of adenomyosis is histopathology from hysterectomy specimens, but specific definitions vary. Published criteria include endometrial glands within the myometrial layer greater than 0.5 to 1 low power field from the basal layer of the endometrium, endometrial glands extending deeper than 25% of the myometrial thickness, or endometrial glands a certain distance (ranging from 1-3 mm) from the basalis layer of the endometrium.¹⁶ Various methods of non-hysterectomy tissue sampling have been proposed for diagnosis, including needle, hysteroscopic, or laparoscopic sampling, but the sensitivity of these methods is poor.¹⁷ Limiting the diagnosis of adenomyosis to specimen pathology relies on invasive methods and clearly we cannot confirm the diagnosis by hysterectomy in patients with a desire for future fertility. It is for this reason that the prevalence of the disease is widely unknown.

The alternative to pathologic diagnosis is to identify radiologic changes that are associated with adenomyosis via either transvaginal ultrasound (TVUS) or MRI. Features suggestive of adenomyosis on MRI overlap with TVUS features, including uterine enlargement, anteroposterior myometrial asymmetry, T1- or T2-intense myometrial cysts or foci, and a thickened JZ.¹⁸ A JZ thicker than 12 mm has been thought to be predictive of adenomyosis, whereas a thickness of less than 8 mm is predictive of its absence, although the JZ may vary in thickness with the menstrual cycle.^19,20 A 2021 systematic review and meta-analysis comparing MRI diagnosis with histopathologic findings reported a pooled sensitivity and specificity of 60% and 96%, respectively.²¹ The reported range for sensitivity and specificity is wide: 70% to 93% for sensitivity and 67% to 93% for specificity.^22-24

Key TVUS features associated with adenomyosis were defined in 2015 in a consensus statement released by the Morphological Uterus Sonographic Assessment (MUSA) group.²⁵ These include a globally enlarged uterus, anteroposterior myometrial asymmetry, myometrial cysts, fan-shaped shadowing, mixed myometrial echogenicity, translesional vascularity, echogenic subendometrial lines and buds, and a thickened, irregular or discontinuous JZ (FIGURES 3 and 4).²⁵ The accuracy of ultrasonographic diagnosis of adenomyosis using these features has been investigated in multiple systematic reviews and meta-analyses, most recently by Liu and colleagues who found a pooled sensitivity of TVUS of 81% and pooled specificity of 87%.²³ The range for ultrasonographic sensitivity and specificity is wide, however, ranging from 33% to 84% for sensitivity and 64% to 100% for specificity.²² Consensus is lacking as to which TVUS features are most predictive of adenomyosis, but in general, the combination of multiple MUSA criteria (particularly myometrial cysts and irregular JZ on 3D imaging) appears to be more accurate than any one feature alone.²³ The presence of fibroids may decrease the sensitivity of TVUS, and one study suggested elastography may increase the accuracy of TVUS.^24,26 Moreover, given that most radiologists receive limited training on the MUSA criteria, it behooves gynecologists to become familiar with these sonographic features to be able to identify adenomyosis in our patients.

Clinical presentation

While many women who are later diagnosed with adenomyosis are asymptomatic, the disease can present with heavy menstrual bleeding and dysmenorrhea, which occur in 50% and 30% of patients, respectively.²⁸ Other symptoms include dyspareunia and infertility. Symptoms were previously reported to develop between the ages of 40 and 50 years; however, this is biased by diagnosis at the time of hysterectomy and the fact that younger patients are less likely to undergo definitive surgery. When using imaging criteria for diagnosis, adenomyosis might be more responsible for dysmenorrhea and chronic pelvic pain in younger patients than previously appreciated.^1,29 In a recent study reviewing TVUS in 270 adolescents for any reason, adenomyosis was present in 5% of cases and this increased up to 44% in the presence of endometriosis.³⁰

Adenomyosis often co-exists and shares similar clinical presentations with other gynecologic pathologies such as endometriosis and fibroids, making diagnosis on symptomatology alone challenging. Concurrent adenomyosis has been found in up to 73% and 57% of patients with suspected or diagnosed endometriosis and fibroids, respectively.^31,32 Accumulating evidence suggests that pelvic pain previously attributed to endometriosis may in fact be a result of adenomyosis; for example, persistent pelvic pain after optimal resection of endometriosis may be confounded by the presence of adenomyosis.²⁹ In one study of 155 patients with complete resection of deep infiltrating endometriosis, persistent pelvic pain was significantly associated with the presence of adenomyosis on imaging.³³

Adenomyosis is increasingly being recognized at the time of infertility evaluation with an estimated prevalence of 30% in women with infertility.³ Among women with infertility, adenomyosis has been associated with a lower clinical pregnancy rate, higher miscarriage rate, and lower live birth rate, as well as obstetric complications such as abnormal placentation.^34-36 A study of 37 baboons found the histologic diagnosis of adenomyosis alone at necropsy was associated with a 20-fold increased risk of lifelong infertility (odds ratio [OR], 20.1; 95% CI, 2.1-921), whereas presence of endometriosis was associated with a nonsignificant 3-fold risk of lifelong infertility (OR, 3.6; 95% CI, 0.9-15.8).³⁷

In women with endometriosis and infertility, co-existing adenomyosis portends worse fertility outcomes. In a retrospective study of 244 women who underwent endometriosis surgery, more than five features of adenomyosis on imaging was associated with higher rates of infertility, in vitro fertilization treatments, and a higher number of in vitro fertilization cycles.³¹ Moreover, in women who underwent surgery for deep infiltrating endometriosis, the presence of adenomyosis on imaging was associated with a 68% reduction in likelihood of pregnancy after surgery.³⁸

Conclusion

As we begin to learn about adenomyosis, our misconceptions become more evident. The notion that it largely affects women at the end of their reproductive lives is biased by using histopathology at hysterectomy as the gold standard for diagnosis. Lack of definitive histologic or imaging criteria and biopsy techniques add to the diagnostic challenge. This in turn leads to inaccurate estimates of incidence and prevalence, as we assume patients’ symptoms must be attributable to what we can see at the time of surgery (for example, Stage I or II endometriosis), rather than what we cannot see. We now know that adenomyosis is present in women of all ages, including adolescents, and can significantly contribute to reduced fertility and quality of life. We owe it to our patients to consider this condition in the differential diagnosis of dysmenorrhea, heavy menstrual bleeding, dyspareunia, and infertility.

CASE Resolved

The patient underwent targeted hysteroscopic resection of adenomyosis (FIGURE 5) and conceived spontaneously the following year. ●

Postpartum hemorrhage (PPH) is a common complication of birth. In 2019, 4.3% of births in the United States were complicated by at least one episode of PPH.¹ Major causes of PPH include uterine atony, retained products of conception, reproductive tract trauma, and coagulopathy.² Active management of the third stage of labor with the routine administration of postpartum uterotonics reduces the risk of PPH.^3,4

PPH treatment requires a systematic approach using appropriate uterotonic medications, tranexamic acid, and procedures performed in a timely sequence to resolve the hemorrhage. Following vaginal birth, procedures that do not require a laparotomy to treat PPH include uterine massage, uterine evacuation to remove retained placental tissue, repair of lacerations, uterine balloon tamponade (UBT), uterine packing, a vacuum-induced hemorrhage control device (VHCD; JADA, Organon), and uterine artery embolization. Following cesarean birth, with an open laparotomy incision, interventions to treat PPH due to atony include vascular ligation, uterine compression sutures, UBT, VHCD, hysterectomy, and pelvic packing.²

Over the past 2 decades, UBT has been widely used for the treatment of PPH with a success rate in observational studies of approximately 86%.⁵ The uterine balloon creates pressure against the wall of the uterus permitting accumulation of platelets at bleeding sites, enhancing the activity of the clotting system. The uterine balloon provides direct pressure on the bleeding site(s). It is well known in trauma care that the first step to treat a bleeding wound is to apply direct pressure to the bleeding site. During the third stage of labor, a natural process is tetanic uterine contraction, which constricts myometrial vessels and the placenta bed. Placing a balloon in the uterus and inflating the balloon to 200 mL to 500 mL may delay the involution of the uterus that should occur following birth. An observation of great interest is the insight that inducing a vacuum in the uterine cavity may enhance tetanic uterine contraction and constriction of the myometrial vessels. Vacuum-induced hemorrhage control is discussed in detail in this editorial.

Vacuum-induced hemorrhage control device

A new device for the treatment of PPH due to uterine atony is the JADA VHCD (FIGURE), which generates negative intrauterine pressure causing the uterus to contract, thereby constricting myometrial vessels and reducing uterine bleeding. The JADA VHCD system is indicated to provide control and treatment of abnormal postpartum uterine bleeding following vaginal or cesarean birth caused by uterine atony when conservative management is indicated.⁶

ILLUSTRATION: MARY ELLEN NIATAS FOR OBG MANAGEMENT

System components

The JADA VHCD consists of a leading portion intended to be inserted into the uterine cavity, which consists of a silicone elliptical loop with 20 vacuum pores. A soft shield covers the vacuum loop to reduce the risk of the vacuum pores being clogged with biological material, including blood and clots. The elliptical loop is attached to a catheter intended for connection to a vacuum source set to 80 mm Hg ±10 mm Hg (hospital wall suction or portable suction device) with an in-line cannister to collect blood. Approximately 16 cm from the tip of the elliptical loop is a balloon that should be positioned in the upper vagina, not inside the cervix, and inflated with fluid (60 mL to 120 mL) through a dedicated port to occlude the vagina, thereby preserving a stable intrauterine vacuum.

Continue to: Correct usage...

Correct usage

A simple mnemonic to facilitate use of the JADA VHCD is “120/80”—fill the vaginal balloon with 120 mL of sterile fluid and attach the tubing to a source that is set to provide 80 mm Hg of vacuum with an in-line collection cannister. The VHCD may not work correctly if there is a substantial amount of blood in the uterus. Clinical experts advise that an important step prior to placing the elliptical loop in the uterus is to perform a sweep of the uterine cavity with a hand or instrument to remove clots and ensure there is no retained placental tissue. It is preferable to assemble the suction tubing, syringe, sterile fluid, and other instruments (eg, forceps, speculum) needed to insert the device prior to attempting to place the VHCD. When the elliptical loop is compressed for insertion, it is about 2 cm in diameter, necessitating that the cervix be dilated sufficiently to accommodate the device.

Immediately after placing the VHCD, contractions can be monitored by physical examination and the amount of ongoing bleeding can be estimated by observing the amount of blood accumulating in the cannister. Rapid onset of a palpable increase in uterine tone is a prominent feature of successful treatment of PPH with the VHCD. The VHCD should be kept in the uterus with active suction for at least 1 hour. Taping the tubing to the inner thigh may help stabilize the device. Once bleeding is controlled, prior to removing the device, the vacuum should be discontinued, and bleeding activityshould be assessed for at least 30 minutes. If the patient is stable, the vaginal balloon can be deflated, followed by removal of the device. The VHCD should be removed within 24 hours of placement.⁶

The JADA VHCD system should not be used with ongoing intrauterine pregnancy, untreated uterine rupture, unresolved uterine inversion, current cervical cancer, or serious infection of the uterus.⁶ The VHCD has not been evaluated for effectiveness in the treatment of placenta accreta or coagulopathy. The VHCD has not been specifically evaluated for safety and effectiveness in patients < 34 weeks’ duration, but clinicians report successful use of the device in cases of PPH that have occurred in the second and early-third trimesters. If the device can be appropriately placed with the elliptical loop in the uterus and the balloon in the vagina, it is theoretically possible to use the device for cases of PPH occurring before 34 weeks’ gestation.

When using the JADA VHCD system, it is important to simultaneously provide cardiovascular support, appropriate transfusion of blood products and timely surgical intervention, if indicated. All obstetricians know that in complicated cases of PPH, where conservative measures have not worked, uterine artery embolization or hysterectomy may be the only interventions that will prevent serious patient morbidity.

Effectiveness data

The VHCD has not been evaluated against an alternative approach, such as UBT, in published randomized clinical trials. However, prospective cohort studies have reported that the JADA is often successful in the treatment of PPH.^7-10

In a multicenter cohort study of 107 patients with PPH, including 91 vaginal and 16 cesarean births, 100 patients (93%) were successfully treated with the JADA VHCD.⁷ Median blood loss before application of the system was 870 mL with vaginal birth and 1,300 mL with cesarean birth. Definitive control of the hemorrhage was observed at a median of 3 minutes after initiation of the intrauterine vacuum. In this study, 32% of patients had reproductive tract lacerations that needed to be repaired, and 2 patients required a hysterectomy. Forty patients required a blood transfusion.

Two patients were treated with a Bakri UBT when the VHCD did not resolve the PPH. In this cohort, the vacuum was applied for a median duration of 144 minutes, and a median total device dwell time was 191 minutes. Compared with UBT, the JADA VHCD intrauterine dwell time was shorter, facilitating patient progression and early transfer to the postpartum unit. The physicians who participated in the study reported that the device was easy to use. The complications reported in this cohort were minor and included endometritis (5 cases), vaginal infection (2 cases), and disruption of a vaginal laceration repair (1 case).⁷

Novel approaches to generating an intrauterine vacuum to treat PPH

The JADA VHCD is the only vacuum device approved by the US Food and Drug Administration (FDA) for treatment of PPH. However, clinical innovators have reported alternative approaches to generating an intrauterine vacuum using equipment designed for other purposes. In one study, a Bakri balloon was used to generate intrauterine vacuum tamponade to treat PPH.¹¹ In this study, a Bakri balloon was inserted into the uterus, and the balloon was inflated to 50 mL to 100 mL to seal the vacuum. The main Bakri port was attached to a suction aspiration device set to generate a vacuum of 450 mm Hg to 525 mm Hg, a much greater vacuum than used with the JADA VHCD. This study included 44 cases of PPH due to uterine atony and 22 cases due to placental pathology, with successful treatment of PPH in 86% and 73% of the cases, respectively.

Another approach to generate intrauterine vacuum tamponade involves using a Levin stomach tube (FG24 or FG36), which has an open end and 4 side ports near the open tip.^12-14 The Levin stomach tube is low cost and has many favorable design features, including a rounded tip, wide-bore, and circumferentially placed side ports. The FG36 Levin stomach tube is 12 mm in diameter and has 10 mm side ports. A vacuum device set to deliver 100 mm Hg to 200 mm Hgwas used in some of the studies evaluating the Levin stomach tube for the treatment of PPH. In 3 cases of severe PPH unresponsive to standard interventions, creation of vacuum tamponade with flexible suction tubing with side ports was successful in controlling the hemorrhage.¹³

Dr. T.N. Vasudeva Panicker invented an intrauterine cannula 12 mm in diameter and 25 cm in length, with dozens of 4 mm side ports over the distal 12 cm of the cannula.¹⁵ The cannula, which is made of stainless steel or plastic, is inserted into the uterus and 700 mm Hgvacuum is applied, a level much greater than the 80 mm Hg vacuum recommended for use with the JADA VHCD. When successful, the high suction clears the uterus of blood and causes uterine contraction. In 4 cases of severe PPH, the device successfully controlled the hemorrhage. In 2 of the 4 cases the device that was initially placed became clogged with blood and needed to be replaced.

UBT vs VHCD

To date there are no published randomized controlled trials comparing Bakri UBT to the JADA VHCD. In one retrospective study, the frequency of massive transfusion of red blood cells (RBCs), defined as the transfusion of 4 units or greater of RBCs, was assessed among 78 patients treated with the Bakri UBT and 36 patients treated with the JADA VHCD.⁹ In this study, at baseline there was a non ̶ statistically significant trend for JADA VHCD to be used more frequently than the Bakri UBT in cases of PPH occurring during repeat cesarean delivery (33% vs 14%). The Bakri UBT was used more frequently than the JADA VHCD among patients having a PPH following a vaginal delivery (51% vs 31%). Both devices were used at similar rates for operative vaginal delivery (6%) and primary cesarean birth (31% VHCD and 28% UBT).

In this retrospective study, the percentage of patients treated with VHCD or UBT who received 4 or more units of RBCs was 3% and 21%, respectively (P < .01). Among patients treated with VHCD and UBT, the estimated median blood loss was 1,500 mL and 1,850 mL (P=.02), respectively. The median hemoglobin concentration at discharge was similar in the VHCD and UBT groups, 8.8 g/dL and 8.6 g/dL, respectively.⁹ A randomized controlled trial is necessary to refine our understanding of the comparative effectiveness of UBT and VHCD in controlling PPH following vaginal and cesarean birth.

A welcome addition to treatment options

Every obstetrician knows that, in the next 12 months of their practice, they will encounter multiple cases of PPH. One or two of these cases may require the physician to use every medication and procedure available for the treatment of PPH to save the life of the patient. To prepare to treat the next case of PPH rapidly and effectively, it is important for every obstetrician to develop a standardized cognitive plan for using all available treatmentmodalities in an appropriate and timely sequence, including both the Bakri balloon and the JADA VHCD. The insight that inducing an intrauterine vacuum causes uterine contraction, which may resolve PPH, is an important discovery. The JADA VHCD is a welcome addition to our armamentarium of treatments for PPH. ●
 

Postpartum hemorrhage (PPH) is a common complication of birth. In 2019, 4.3% of births in the United States were complicated by at least one episode of PPH.¹ Major causes of PPH include uterine atony, retained products of conception, reproductive tract trauma, and coagulopathy.² Active management of the third stage of labor with the routine administration of postpartum uterotonics reduces the risk of PPH.^3,4

PPH treatment requires a systematic approach using appropriate uterotonic medications, tranexamic acid, and procedures performed in a timely sequence to resolve the hemorrhage. Following vaginal birth, procedures that do not require a laparotomy to treat PPH include uterine massage, uterine evacuation to remove retained placental tissue, repair of lacerations, uterine balloon tamponade (UBT), uterine packing, a vacuum-induced hemorrhage control device (VHCD; JADA, Organon), and uterine artery embolization. Following cesarean birth, with an open laparotomy incision, interventions to treat PPH due to atony include vascular ligation, uterine compression sutures, UBT, VHCD, hysterectomy, and pelvic packing.²

Over the past 2 decades, UBT has been widely used for the treatment of PPH with a success rate in observational studies of approximately 86%.⁵ The uterine balloon creates pressure against the wall of the uterus permitting accumulation of platelets at bleeding sites, enhancing the activity of the clotting system. The uterine balloon provides direct pressure on the bleeding site(s). It is well known in trauma care that the first step to treat a bleeding wound is to apply direct pressure to the bleeding site. During the third stage of labor, a natural process is tetanic uterine contraction, which constricts myometrial vessels and the placenta bed. Placing a balloon in the uterus and inflating the balloon to 200 mL to 500 mL may delay the involution of the uterus that should occur following birth. An observation of great interest is the insight that inducing a vacuum in the uterine cavity may enhance tetanic uterine contraction and constriction of the myometrial vessels. Vacuum-induced hemorrhage control is discussed in detail in this editorial.

Vacuum-induced hemorrhage control device

A new device for the treatment of PPH due to uterine atony is the JADA VHCD (FIGURE), which generates negative intrauterine pressure causing the uterus to contract, thereby constricting myometrial vessels and reducing uterine bleeding. The JADA VHCD system is indicated to provide control and treatment of abnormal postpartum uterine bleeding following vaginal or cesarean birth caused by uterine atony when conservative management is indicated.⁶

ILLUSTRATION: MARY ELLEN NIATAS FOR OBG MANAGEMENT

System components

The JADA VHCD consists of a leading portion intended to be inserted into the uterine cavity, which consists of a silicone elliptical loop with 20 vacuum pores. A soft shield covers the vacuum loop to reduce the risk of the vacuum pores being clogged with biological material, including blood and clots. The elliptical loop is attached to a catheter intended for connection to a vacuum source set to 80 mm Hg ±10 mm Hg (hospital wall suction or portable suction device) with an in-line cannister to collect blood. Approximately 16 cm from the tip of the elliptical loop is a balloon that should be positioned in the upper vagina, not inside the cervix, and inflated with fluid (60 mL to 120 mL) through a dedicated port to occlude the vagina, thereby preserving a stable intrauterine vacuum.

Continue to: Correct usage...

Correct usage

A simple mnemonic to facilitate use of the JADA VHCD is “120/80”—fill the vaginal balloon with 120 mL of sterile fluid and attach the tubing to a source that is set to provide 80 mm Hg of vacuum with an in-line collection cannister. The VHCD may not work correctly if there is a substantial amount of blood in the uterus. Clinical experts advise that an important step prior to placing the elliptical loop in the uterus is to perform a sweep of the uterine cavity with a hand or instrument to remove clots and ensure there is no retained placental tissue. It is preferable to assemble the suction tubing, syringe, sterile fluid, and other instruments (eg, forceps, speculum) needed to insert the device prior to attempting to place the VHCD. When the elliptical loop is compressed for insertion, it is about 2 cm in diameter, necessitating that the cervix be dilated sufficiently to accommodate the device.

Immediately after placing the VHCD, contractions can be monitored by physical examination and the amount of ongoing bleeding can be estimated by observing the amount of blood accumulating in the cannister. Rapid onset of a palpable increase in uterine tone is a prominent feature of successful treatment of PPH with the VHCD. The VHCD should be kept in the uterus with active suction for at least 1 hour. Taping the tubing to the inner thigh may help stabilize the device. Once bleeding is controlled, prior to removing the device, the vacuum should be discontinued, and bleeding activityshould be assessed for at least 30 minutes. If the patient is stable, the vaginal balloon can be deflated, followed by removal of the device. The VHCD should be removed within 24 hours of placement.⁶

The JADA VHCD system should not be used with ongoing intrauterine pregnancy, untreated uterine rupture, unresolved uterine inversion, current cervical cancer, or serious infection of the uterus.⁶ The VHCD has not been evaluated for effectiveness in the treatment of placenta accreta or coagulopathy. The VHCD has not been specifically evaluated for safety and effectiveness in patients < 34 weeks’ duration, but clinicians report successful use of the device in cases of PPH that have occurred in the second and early-third trimesters. If the device can be appropriately placed with the elliptical loop in the uterus and the balloon in the vagina, it is theoretically possible to use the device for cases of PPH occurring before 34 weeks’ gestation.

When using the JADA VHCD system, it is important to simultaneously provide cardiovascular support, appropriate transfusion of blood products and timely surgical intervention, if indicated. All obstetricians know that in complicated cases of PPH, where conservative measures have not worked, uterine artery embolization or hysterectomy may be the only interventions that will prevent serious patient morbidity.

Effectiveness data

The VHCD has not been evaluated against an alternative approach, such as UBT, in published randomized clinical trials. However, prospective cohort studies have reported that the JADA is often successful in the treatment of PPH.^7-10

In a multicenter cohort study of 107 patients with PPH, including 91 vaginal and 16 cesarean births, 100 patients (93%) were successfully treated with the JADA VHCD.⁷ Median blood loss before application of the system was 870 mL with vaginal birth and 1,300 mL with cesarean birth. Definitive control of the hemorrhage was observed at a median of 3 minutes after initiation of the intrauterine vacuum. In this study, 32% of patients had reproductive tract lacerations that needed to be repaired, and 2 patients required a hysterectomy. Forty patients required a blood transfusion.

Two patients were treated with a Bakri UBT when the VHCD did not resolve the PPH. In this cohort, the vacuum was applied for a median duration of 144 minutes, and a median total device dwell time was 191 minutes. Compared with UBT, the JADA VHCD intrauterine dwell time was shorter, facilitating patient progression and early transfer to the postpartum unit. The physicians who participated in the study reported that the device was easy to use. The complications reported in this cohort were minor and included endometritis (5 cases), vaginal infection (2 cases), and disruption of a vaginal laceration repair (1 case).⁷

Novel approaches to generating an intrauterine vacuum to treat PPH

The JADA VHCD is the only vacuum device approved by the US Food and Drug Administration (FDA) for treatment of PPH. However, clinical innovators have reported alternative approaches to generating an intrauterine vacuum using equipment designed for other purposes. In one study, a Bakri balloon was used to generate intrauterine vacuum tamponade to treat PPH.¹¹ In this study, a Bakri balloon was inserted into the uterus, and the balloon was inflated to 50 mL to 100 mL to seal the vacuum. The main Bakri port was attached to a suction aspiration device set to generate a vacuum of 450 mm Hg to 525 mm Hg, a much greater vacuum than used with the JADA VHCD. This study included 44 cases of PPH due to uterine atony and 22 cases due to placental pathology, with successful treatment of PPH in 86% and 73% of the cases, respectively.

Another approach to generate intrauterine vacuum tamponade involves using a Levin stomach tube (FG24 or FG36), which has an open end and 4 side ports near the open tip.^12-14 The Levin stomach tube is low cost and has many favorable design features, including a rounded tip, wide-bore, and circumferentially placed side ports. The FG36 Levin stomach tube is 12 mm in diameter and has 10 mm side ports. A vacuum device set to deliver 100 mm Hg to 200 mm Hgwas used in some of the studies evaluating the Levin stomach tube for the treatment of PPH. In 3 cases of severe PPH unresponsive to standard interventions, creation of vacuum tamponade with flexible suction tubing with side ports was successful in controlling the hemorrhage.¹³

Dr. T.N. Vasudeva Panicker invented an intrauterine cannula 12 mm in diameter and 25 cm in length, with dozens of 4 mm side ports over the distal 12 cm of the cannula.¹⁵ The cannula, which is made of stainless steel or plastic, is inserted into the uterus and 700 mm Hgvacuum is applied, a level much greater than the 80 mm Hg vacuum recommended for use with the JADA VHCD. When successful, the high suction clears the uterus of blood and causes uterine contraction. In 4 cases of severe PPH, the device successfully controlled the hemorrhage. In 2 of the 4 cases the device that was initially placed became clogged with blood and needed to be replaced.

UBT vs VHCD

To date there are no published randomized controlled trials comparing Bakri UBT to the JADA VHCD. In one retrospective study, the frequency of massive transfusion of red blood cells (RBCs), defined as the transfusion of 4 units or greater of RBCs, was assessed among 78 patients treated with the Bakri UBT and 36 patients treated with the JADA VHCD.⁹ In this study, at baseline there was a non ̶ statistically significant trend for JADA VHCD to be used more frequently than the Bakri UBT in cases of PPH occurring during repeat cesarean delivery (33% vs 14%). The Bakri UBT was used more frequently than the JADA VHCD among patients having a PPH following a vaginal delivery (51% vs 31%). Both devices were used at similar rates for operative vaginal delivery (6%) and primary cesarean birth (31% VHCD and 28% UBT).

In this retrospective study, the percentage of patients treated with VHCD or UBT who received 4 or more units of RBCs was 3% and 21%, respectively (P < .01). Among patients treated with VHCD and UBT, the estimated median blood loss was 1,500 mL and 1,850 mL (P=.02), respectively. The median hemoglobin concentration at discharge was similar in the VHCD and UBT groups, 8.8 g/dL and 8.6 g/dL, respectively.⁹ A randomized controlled trial is necessary to refine our understanding of the comparative effectiveness of UBT and VHCD in controlling PPH following vaginal and cesarean birth.

A welcome addition to treatment options

Every obstetrician knows that, in the next 12 months of their practice, they will encounter multiple cases of PPH. One or two of these cases may require the physician to use every medication and procedure available for the treatment of PPH to save the life of the patient. To prepare to treat the next case of PPH rapidly and effectively, it is important for every obstetrician to develop a standardized cognitive plan for using all available treatmentmodalities in an appropriate and timely sequence, including both the Bakri balloon and the JADA VHCD. The insight that inducing an intrauterine vacuum causes uterine contraction, which may resolve PPH, is an important discovery. The JADA VHCD is a welcome addition to our armamentarium of treatments for PPH. ●
 

Postpartum hemorrhage (PPH) is a common complication of birth. In 2019, 4.3% of births in the United States were complicated by at least one episode of PPH.¹ Major causes of PPH include uterine atony, retained products of conception, reproductive tract trauma, and coagulopathy.² Active management of the third stage of labor with the routine administration of postpartum uterotonics reduces the risk of PPH.^3,4

PPH treatment requires a systematic approach using appropriate uterotonic medications, tranexamic acid, and procedures performed in a timely sequence to resolve the hemorrhage. Following vaginal birth, procedures that do not require a laparotomy to treat PPH include uterine massage, uterine evacuation to remove retained placental tissue, repair of lacerations, uterine balloon tamponade (UBT), uterine packing, a vacuum-induced hemorrhage control device (VHCD; JADA, Organon), and uterine artery embolization. Following cesarean birth, with an open laparotomy incision, interventions to treat PPH due to atony include vascular ligation, uterine compression sutures, UBT, VHCD, hysterectomy, and pelvic packing.²

Over the past 2 decades, UBT has been widely used for the treatment of PPH with a success rate in observational studies of approximately 86%.⁵ The uterine balloon creates pressure against the wall of the uterus permitting accumulation of platelets at bleeding sites, enhancing the activity of the clotting system. The uterine balloon provides direct pressure on the bleeding site(s). It is well known in trauma care that the first step to treat a bleeding wound is to apply direct pressure to the bleeding site. During the third stage of labor, a natural process is tetanic uterine contraction, which constricts myometrial vessels and the placenta bed. Placing a balloon in the uterus and inflating the balloon to 200 mL to 500 mL may delay the involution of the uterus that should occur following birth. An observation of great interest is the insight that inducing a vacuum in the uterine cavity may enhance tetanic uterine contraction and constriction of the myometrial vessels. Vacuum-induced hemorrhage control is discussed in detail in this editorial.

Vacuum-induced hemorrhage control device

A new device for the treatment of PPH due to uterine atony is the JADA VHCD (FIGURE), which generates negative intrauterine pressure causing the uterus to contract, thereby constricting myometrial vessels and reducing uterine bleeding. The JADA VHCD system is indicated to provide control and treatment of abnormal postpartum uterine bleeding following vaginal or cesarean birth caused by uterine atony when conservative management is indicated.⁶

ILLUSTRATION: MARY ELLEN NIATAS FOR OBG MANAGEMENT

System components

The JADA VHCD consists of a leading portion intended to be inserted into the uterine cavity, which consists of a silicone elliptical loop with 20 vacuum pores. A soft shield covers the vacuum loop to reduce the risk of the vacuum pores being clogged with biological material, including blood and clots. The elliptical loop is attached to a catheter intended for connection to a vacuum source set to 80 mm Hg ±10 mm Hg (hospital wall suction or portable suction device) with an in-line cannister to collect blood. Approximately 16 cm from the tip of the elliptical loop is a balloon that should be positioned in the upper vagina, not inside the cervix, and inflated with fluid (60 mL to 120 mL) through a dedicated port to occlude the vagina, thereby preserving a stable intrauterine vacuum.

Continue to: Correct usage...

Correct usage

A simple mnemonic to facilitate use of the JADA VHCD is “120/80”—fill the vaginal balloon with 120 mL of sterile fluid and attach the tubing to a source that is set to provide 80 mm Hg of vacuum with an in-line collection cannister. The VHCD may not work correctly if there is a substantial amount of blood in the uterus. Clinical experts advise that an important step prior to placing the elliptical loop in the uterus is to perform a sweep of the uterine cavity with a hand or instrument to remove clots and ensure there is no retained placental tissue. It is preferable to assemble the suction tubing, syringe, sterile fluid, and other instruments (eg, forceps, speculum) needed to insert the device prior to attempting to place the VHCD. When the elliptical loop is compressed for insertion, it is about 2 cm in diameter, necessitating that the cervix be dilated sufficiently to accommodate the device.

Immediately after placing the VHCD, contractions can be monitored by physical examination and the amount of ongoing bleeding can be estimated by observing the amount of blood accumulating in the cannister. Rapid onset of a palpable increase in uterine tone is a prominent feature of successful treatment of PPH with the VHCD. The VHCD should be kept in the uterus with active suction for at least 1 hour. Taping the tubing to the inner thigh may help stabilize the device. Once bleeding is controlled, prior to removing the device, the vacuum should be discontinued, and bleeding activityshould be assessed for at least 30 minutes. If the patient is stable, the vaginal balloon can be deflated, followed by removal of the device. The VHCD should be removed within 24 hours of placement.⁶

The JADA VHCD system should not be used with ongoing intrauterine pregnancy, untreated uterine rupture, unresolved uterine inversion, current cervical cancer, or serious infection of the uterus.⁶ The VHCD has not been evaluated for effectiveness in the treatment of placenta accreta or coagulopathy. The VHCD has not been specifically evaluated for safety and effectiveness in patients < 34 weeks’ duration, but clinicians report successful use of the device in cases of PPH that have occurred in the second and early-third trimesters. If the device can be appropriately placed with the elliptical loop in the uterus and the balloon in the vagina, it is theoretically possible to use the device for cases of PPH occurring before 34 weeks’ gestation.

When using the JADA VHCD system, it is important to simultaneously provide cardiovascular support, appropriate transfusion of blood products and timely surgical intervention, if indicated. All obstetricians know that in complicated cases of PPH, where conservative measures have not worked, uterine artery embolization or hysterectomy may be the only interventions that will prevent serious patient morbidity.

Effectiveness data

The VHCD has not been evaluated against an alternative approach, such as UBT, in published randomized clinical trials. However, prospective cohort studies have reported that the JADA is often successful in the treatment of PPH.^7-10

In a multicenter cohort study of 107 patients with PPH, including 91 vaginal and 16 cesarean births, 100 patients (93%) were successfully treated with the JADA VHCD.⁷ Median blood loss before application of the system was 870 mL with vaginal birth and 1,300 mL with cesarean birth. Definitive control of the hemorrhage was observed at a median of 3 minutes after initiation of the intrauterine vacuum. In this study, 32% of patients had reproductive tract lacerations that needed to be repaired, and 2 patients required a hysterectomy. Forty patients required a blood transfusion.

Two patients were treated with a Bakri UBT when the VHCD did not resolve the PPH. In this cohort, the vacuum was applied for a median duration of 144 minutes, and a median total device dwell time was 191 minutes. Compared with UBT, the JADA VHCD intrauterine dwell time was shorter, facilitating patient progression and early transfer to the postpartum unit. The physicians who participated in the study reported that the device was easy to use. The complications reported in this cohort were minor and included endometritis (5 cases), vaginal infection (2 cases), and disruption of a vaginal laceration repair (1 case).⁷

Novel approaches to generating an intrauterine vacuum to treat PPH

The JADA VHCD is the only vacuum device approved by the US Food and Drug Administration (FDA) for treatment of PPH. However, clinical innovators have reported alternative approaches to generating an intrauterine vacuum using equipment designed for other purposes. In one study, a Bakri balloon was used to generate intrauterine vacuum tamponade to treat PPH.¹¹ In this study, a Bakri balloon was inserted into the uterus, and the balloon was inflated to 50 mL to 100 mL to seal the vacuum. The main Bakri port was attached to a suction aspiration device set to generate a vacuum of 450 mm Hg to 525 mm Hg, a much greater vacuum than used with the JADA VHCD. This study included 44 cases of PPH due to uterine atony and 22 cases due to placental pathology, with successful treatment of PPH in 86% and 73% of the cases, respectively.

Another approach to generate intrauterine vacuum tamponade involves using a Levin stomach tube (FG24 or FG36), which has an open end and 4 side ports near the open tip.^12-14 The Levin stomach tube is low cost and has many favorable design features, including a rounded tip, wide-bore, and circumferentially placed side ports. The FG36 Levin stomach tube is 12 mm in diameter and has 10 mm side ports. A vacuum device set to deliver 100 mm Hg to 200 mm Hgwas used in some of the studies evaluating the Levin stomach tube for the treatment of PPH. In 3 cases of severe PPH unresponsive to standard interventions, creation of vacuum tamponade with flexible suction tubing with side ports was successful in controlling the hemorrhage.¹³

Dr. T.N. Vasudeva Panicker invented an intrauterine cannula 12 mm in diameter and 25 cm in length, with dozens of 4 mm side ports over the distal 12 cm of the cannula.¹⁵ The cannula, which is made of stainless steel or plastic, is inserted into the uterus and 700 mm Hgvacuum is applied, a level much greater than the 80 mm Hg vacuum recommended for use with the JADA VHCD. When successful, the high suction clears the uterus of blood and causes uterine contraction. In 4 cases of severe PPH, the device successfully controlled the hemorrhage. In 2 of the 4 cases the device that was initially placed became clogged with blood and needed to be replaced.

UBT vs VHCD

To date there are no published randomized controlled trials comparing Bakri UBT to the JADA VHCD. In one retrospective study, the frequency of massive transfusion of red blood cells (RBCs), defined as the transfusion of 4 units or greater of RBCs, was assessed among 78 patients treated with the Bakri UBT and 36 patients treated with the JADA VHCD.⁹ In this study, at baseline there was a non ̶ statistically significant trend for JADA VHCD to be used more frequently than the Bakri UBT in cases of PPH occurring during repeat cesarean delivery (33% vs 14%). The Bakri UBT was used more frequently than the JADA VHCD among patients having a PPH following a vaginal delivery (51% vs 31%). Both devices were used at similar rates for operative vaginal delivery (6%) and primary cesarean birth (31% VHCD and 28% UBT).

In this retrospective study, the percentage of patients treated with VHCD or UBT who received 4 or more units of RBCs was 3% and 21%, respectively (P < .01). Among patients treated with VHCD and UBT, the estimated median blood loss was 1,500 mL and 1,850 mL (P=.02), respectively. The median hemoglobin concentration at discharge was similar in the VHCD and UBT groups, 8.8 g/dL and 8.6 g/dL, respectively.⁹ A randomized controlled trial is necessary to refine our understanding of the comparative effectiveness of UBT and VHCD in controlling PPH following vaginal and cesarean birth.

A welcome addition to treatment options

Every obstetrician knows that, in the next 12 months of their practice, they will encounter multiple cases of PPH. One or two of these cases may require the physician to use every medication and procedure available for the treatment of PPH to save the life of the patient. To prepare to treat the next case of PPH rapidly and effectively, it is important for every obstetrician to develop a standardized cognitive plan for using all available treatmentmodalities in an appropriate and timely sequence, including both the Bakri balloon and the JADA VHCD. The insight that inducing an intrauterine vacuum causes uterine contraction, which may resolve PPH, is an important discovery. The JADA VHCD is a welcome addition to our armamentarium of treatments for PPH. ●
 

Yeung LK, Alschuler DM, Wall M, et al. Multivitamin supplementation improves memory in older adults: a randomized clinical trial. Am J Clin Nutrition. 2023;118:273-282. doi:10.1016/j.ajcnut.2023.05.011.

EXPERT COMMENTARY

Preservation of function, both physical and cognitive, is key to long-term health and well-being. Age-related loss of function drives millions of people to spend an enormous amount of money each year on unregulated therapies—vitamins, supplements, infusions, hormones, and “natural” products—all toward the promise of improvement or preservation of physical strength, sexual function, and maintenance of lean body mass and cognitive abilities. Yeung and colleagues set out to determine whether the daily use of a multivitamin/mineral supplement (Centrum Silver) would impact memory in older adults.¹

Details of the study

The COSMOS-Web study was designed to test the authors’ primary hypothesis that daily dietary flavanols would improve memory over 1 year.¹ This study was embedded within the larger COSMOS (COcoa Supplement and Multivitamin Outcomes Study) trial, in which 21,442 people were recruited to assess the impact of flavanols and multivitamin supplements on cardiovascular and cancer outcomes.

Results of another ancillary study, the COSMOS-Mind trial (n = 2,262, average age 73, 60% female), reported no improvement with flavanols compared with placebo on a battery of tests of cognitive function administered by phone. In COSMOS-Mind, however, it was concluded that a daily multivitamin/mineral supplement improved the composite score of cognitive tests compared with placebo, particularly in participants with a history of cardiovascular disease.²

The COSMOS-Web trial recruited an additional cohort within the larger COSMOS trial from 2016–2017 (n = 3,562, average age 71, 67% female) to participate in this study specifically geared to assess memory, using the web-based ModRey test (a test of memory validated for use in a nonimpaired population). To qualify for enrollment, participants had to have access to an internet-connected computer. They were randomly assigned in a 2 x 2 study design to receive a daily multivitamin supplement or placebo; each of these cohorts was further divided into a flavanol supplementation or a placebo group. Analysis of the data showed no association between flavanol use and performance on any of the measures of memory or cognitive function.³

The COSMOS-Web trial assessed episodic recall, a function of hippocampus-mediated cognition that is particularly vulnerable to the effects of aging as demonstrated previously by neuroimaging and neuropsychological studies. The authors deployed a battery of 3 tests via a web platform for patients to complete online and independently.

The prespecified primary outcome was performance on episodic recall as measured by the ModRey test after 1 year of supplementation with multivitamins versus placebo. The ModRey test presents a series of 20 words at 3-second intervals to participants. At the conclusion of the last word, participants were asked to recall as many words as they could; after completing the 2 additional tasks, participants were asked again to recall the words. A secondary outcome of this test is the ratio of delayed to immediate recall.

Two additional tests were administered to assess cognitive performance related to different brain regions, the ModBent test (assessing novel object recognition) and the Flanker task (a measure of executive function). There was a placebo run-in phase during which participants’ adherence to daily supplement intake was ascertained. Participants were excluded if they demonstrated less than 75% adherence to study pills during the run-in placebo phase. The cognitive tasks were presented at study initiation and at yearly intervals for 3 years. The authors chose to use the results at 1 year as their primary outcome to assess the impact of supplementation during the period when adherence would be highest.

Results. At baseline, the placebo cohort recalled 7.2 words of 20 compared with 7.1 in the supplement group. In both groups there was a practice effect, with improvement in scores in the placebo group to 7.65 words and in the multivitamin group to 7.81 words. The improvement from baseline was statistically significantly better (0.71 words) in the multivitamin cohort than in the placebo group (0.45 words). There was no improvement in either group in the ModRey memory retention test (ability to recall the words after 15 minutes) or in the ModBent or Flanker tests. At 3 years of treatment, the placebo group improved by 0.92 words (SD, 3.22) whereas the multivitamin group improved by 1.13 words (SD, 3.39). These changes remained statistically significant.

The group with cardiovascular disease had lower baseline performance on the ModRey test. With supplementation, however, the improvement in this cohort was significantly greater than in those without cardiovascular disease at 1 year. The authors acknowledged that the changes were small and may not have been noticeable to the individuals, but they argued that even small changes as demonstrated in this study can have large health benefits at a population level.

The results of the COSMOS-Web trial corroborate the findings of the COSMOS-Mind study with respect to the benefits of multivitamin/mineral supplementation on cognitive test performance, particularly in a population with preexisting cardiovascular disease. The tests used across the 2 studies were different, which lends greater reliability to the findings.

Study strengths and limitations

A major strength of this study is its careful, rigorous design as a double-blind, placebo-controlled trial in a large patient population. Great care was devoted to ensuring study medication adherence. Another strength is that the cognitive tests chosen for the COSMOS-Web trial have been validated in cognitively normal populations, not those already impaired.

A limitation, however, is in the demographics of the study. The patient population was overwhelmingly White (93%), 67% were female, and they were well educated (94.8% having completed some college or beyond). Their baseline health was good; only 4.7% had a history of cardiovascular disease. Although generalizability of the study results from this population may be concerning,relative benefits of supplementation in this healthy, generally well-nourished and educated group may be lower than might be expected in a more nutritionally and educationally challenged population.

Finally, the difference between the placebo and active supplementation groups was small. Whether this less-than-1-word difference in immediate memory recall is noticeable by a patient is questionable. Both groups improved in their test performance over time—a consequence of serial cognitive tests of any kind. Although the authors calculated that the difference in recall translates to a 3-year reduction in age-related memory decline, it is hard to reconcile that with the fact that both groups actually improved over the 3 years of the study. ●

Acknowledgement

The author would like to thank JoAnn Manson, MD, DrPH, NCMP, for her assistance in evaluating the study.

Yeung LK, Alschuler DM, Wall M, et al. Multivitamin supplementation improves memory in older adults: a randomized clinical trial. Am J Clin Nutrition. 2023;118:273-282. doi:10.1016/j.ajcnut.2023.05.011.

EXPERT COMMENTARY

Preservation of function, both physical and cognitive, is key to long-term health and well-being. Age-related loss of function drives millions of people to spend an enormous amount of money each year on unregulated therapies—vitamins, supplements, infusions, hormones, and “natural” products—all toward the promise of improvement or preservation of physical strength, sexual function, and maintenance of lean body mass and cognitive abilities. Yeung and colleagues set out to determine whether the daily use of a multivitamin/mineral supplement (Centrum Silver) would impact memory in older adults.¹

Details of the study

The COSMOS-Web study was designed to test the authors’ primary hypothesis that daily dietary flavanols would improve memory over 1 year.¹ This study was embedded within the larger COSMOS (COcoa Supplement and Multivitamin Outcomes Study) trial, in which 21,442 people were recruited to assess the impact of flavanols and multivitamin supplements on cardiovascular and cancer outcomes.

Results of another ancillary study, the COSMOS-Mind trial (n = 2,262, average age 73, 60% female), reported no improvement with flavanols compared with placebo on a battery of tests of cognitive function administered by phone. In COSMOS-Mind, however, it was concluded that a daily multivitamin/mineral supplement improved the composite score of cognitive tests compared with placebo, particularly in participants with a history of cardiovascular disease.²

The COSMOS-Web trial recruited an additional cohort within the larger COSMOS trial from 2016–2017 (n = 3,562, average age 71, 67% female) to participate in this study specifically geared to assess memory, using the web-based ModRey test (a test of memory validated for use in a nonimpaired population). To qualify for enrollment, participants had to have access to an internet-connected computer. They were randomly assigned in a 2 x 2 study design to receive a daily multivitamin supplement or placebo; each of these cohorts was further divided into a flavanol supplementation or a placebo group. Analysis of the data showed no association between flavanol use and performance on any of the measures of memory or cognitive function.³

The COSMOS-Web trial assessed episodic recall, a function of hippocampus-mediated cognition that is particularly vulnerable to the effects of aging as demonstrated previously by neuroimaging and neuropsychological studies. The authors deployed a battery of 3 tests via a web platform for patients to complete online and independently.

The prespecified primary outcome was performance on episodic recall as measured by the ModRey test after 1 year of supplementation with multivitamins versus placebo. The ModRey test presents a series of 20 words at 3-second intervals to participants. At the conclusion of the last word, participants were asked to recall as many words as they could; after completing the 2 additional tasks, participants were asked again to recall the words. A secondary outcome of this test is the ratio of delayed to immediate recall.

Two additional tests were administered to assess cognitive performance related to different brain regions, the ModBent test (assessing novel object recognition) and the Flanker task (a measure of executive function). There was a placebo run-in phase during which participants’ adherence to daily supplement intake was ascertained. Participants were excluded if they demonstrated less than 75% adherence to study pills during the run-in placebo phase. The cognitive tasks were presented at study initiation and at yearly intervals for 3 years. The authors chose to use the results at 1 year as their primary outcome to assess the impact of supplementation during the period when adherence would be highest.

Results. At baseline, the placebo cohort recalled 7.2 words of 20 compared with 7.1 in the supplement group. In both groups there was a practice effect, with improvement in scores in the placebo group to 7.65 words and in the multivitamin group to 7.81 words. The improvement from baseline was statistically significantly better (0.71 words) in the multivitamin cohort than in the placebo group (0.45 words). There was no improvement in either group in the ModRey memory retention test (ability to recall the words after 15 minutes) or in the ModBent or Flanker tests. At 3 years of treatment, the placebo group improved by 0.92 words (SD, 3.22) whereas the multivitamin group improved by 1.13 words (SD, 3.39). These changes remained statistically significant.

The group with cardiovascular disease had lower baseline performance on the ModRey test. With supplementation, however, the improvement in this cohort was significantly greater than in those without cardiovascular disease at 1 year. The authors acknowledged that the changes were small and may not have been noticeable to the individuals, but they argued that even small changes as demonstrated in this study can have large health benefits at a population level.

The results of the COSMOS-Web trial corroborate the findings of the COSMOS-Mind study with respect to the benefits of multivitamin/mineral supplementation on cognitive test performance, particularly in a population with preexisting cardiovascular disease. The tests used across the 2 studies were different, which lends greater reliability to the findings.

Study strengths and limitations

A major strength of this study is its careful, rigorous design as a double-blind, placebo-controlled trial in a large patient population. Great care was devoted to ensuring study medication adherence. Another strength is that the cognitive tests chosen for the COSMOS-Web trial have been validated in cognitively normal populations, not those already impaired.

A limitation, however, is in the demographics of the study. The patient population was overwhelmingly White (93%), 67% were female, and they were well educated (94.8% having completed some college or beyond). Their baseline health was good; only 4.7% had a history of cardiovascular disease. Although generalizability of the study results from this population may be concerning,relative benefits of supplementation in this healthy, generally well-nourished and educated group may be lower than might be expected in a more nutritionally and educationally challenged population.

Finally, the difference between the placebo and active supplementation groups was small. Whether this less-than-1-word difference in immediate memory recall is noticeable by a patient is questionable. Both groups improved in their test performance over time—a consequence of serial cognitive tests of any kind. Although the authors calculated that the difference in recall translates to a 3-year reduction in age-related memory decline, it is hard to reconcile that with the fact that both groups actually improved over the 3 years of the study. ●

Acknowledgement

The author would like to thank JoAnn Manson, MD, DrPH, NCMP, for her assistance in evaluating the study.

Yeung LK, Alschuler DM, Wall M, et al. Multivitamin supplementation improves memory in older adults: a randomized clinical trial. Am J Clin Nutrition. 2023;118:273-282. doi:10.1016/j.ajcnut.2023.05.011.

EXPERT COMMENTARY

Preservation of function, both physical and cognitive, is key to long-term health and well-being. Age-related loss of function drives millions of people to spend an enormous amount of money each year on unregulated therapies—vitamins, supplements, infusions, hormones, and “natural” products—all toward the promise of improvement or preservation of physical strength, sexual function, and maintenance of lean body mass and cognitive abilities. Yeung and colleagues set out to determine whether the daily use of a multivitamin/mineral supplement (Centrum Silver) would impact memory in older adults.¹

Details of the study

The COSMOS-Web study was designed to test the authors’ primary hypothesis that daily dietary flavanols would improve memory over 1 year.¹ This study was embedded within the larger COSMOS (COcoa Supplement and Multivitamin Outcomes Study) trial, in which 21,442 people were recruited to assess the impact of flavanols and multivitamin supplements on cardiovascular and cancer outcomes.

Results of another ancillary study, the COSMOS-Mind trial (n = 2,262, average age 73, 60% female), reported no improvement with flavanols compared with placebo on a battery of tests of cognitive function administered by phone. In COSMOS-Mind, however, it was concluded that a daily multivitamin/mineral supplement improved the composite score of cognitive tests compared with placebo, particularly in participants with a history of cardiovascular disease.²

The COSMOS-Web trial recruited an additional cohort within the larger COSMOS trial from 2016–2017 (n = 3,562, average age 71, 67% female) to participate in this study specifically geared to assess memory, using the web-based ModRey test (a test of memory validated for use in a nonimpaired population). To qualify for enrollment, participants had to have access to an internet-connected computer. They were randomly assigned in a 2 x 2 study design to receive a daily multivitamin supplement or placebo; each of these cohorts was further divided into a flavanol supplementation or a placebo group. Analysis of the data showed no association between flavanol use and performance on any of the measures of memory or cognitive function.³

The COSMOS-Web trial assessed episodic recall, a function of hippocampus-mediated cognition that is particularly vulnerable to the effects of aging as demonstrated previously by neuroimaging and neuropsychological studies. The authors deployed a battery of 3 tests via a web platform for patients to complete online and independently.

The prespecified primary outcome was performance on episodic recall as measured by the ModRey test after 1 year of supplementation with multivitamins versus placebo. The ModRey test presents a series of 20 words at 3-second intervals to participants. At the conclusion of the last word, participants were asked to recall as many words as they could; after completing the 2 additional tasks, participants were asked again to recall the words. A secondary outcome of this test is the ratio of delayed to immediate recall.

Two additional tests were administered to assess cognitive performance related to different brain regions, the ModBent test (assessing novel object recognition) and the Flanker task (a measure of executive function). There was a placebo run-in phase during which participants’ adherence to daily supplement intake was ascertained. Participants were excluded if they demonstrated less than 75% adherence to study pills during the run-in placebo phase. The cognitive tasks were presented at study initiation and at yearly intervals for 3 years. The authors chose to use the results at 1 year as their primary outcome to assess the impact of supplementation during the period when adherence would be highest.

Results. At baseline, the placebo cohort recalled 7.2 words of 20 compared with 7.1 in the supplement group. In both groups there was a practice effect, with improvement in scores in the placebo group to 7.65 words and in the multivitamin group to 7.81 words. The improvement from baseline was statistically significantly better (0.71 words) in the multivitamin cohort than in the placebo group (0.45 words). There was no improvement in either group in the ModRey memory retention test (ability to recall the words after 15 minutes) or in the ModBent or Flanker tests. At 3 years of treatment, the placebo group improved by 0.92 words (SD, 3.22) whereas the multivitamin group improved by 1.13 words (SD, 3.39). These changes remained statistically significant.

The group with cardiovascular disease had lower baseline performance on the ModRey test. With supplementation, however, the improvement in this cohort was significantly greater than in those without cardiovascular disease at 1 year. The authors acknowledged that the changes were small and may not have been noticeable to the individuals, but they argued that even small changes as demonstrated in this study can have large health benefits at a population level.

The results of the COSMOS-Web trial corroborate the findings of the COSMOS-Mind study with respect to the benefits of multivitamin/mineral supplementation on cognitive test performance, particularly in a population with preexisting cardiovascular disease. The tests used across the 2 studies were different, which lends greater reliability to the findings.

Study strengths and limitations

A major strength of this study is its careful, rigorous design as a double-blind, placebo-controlled trial in a large patient population. Great care was devoted to ensuring study medication adherence. Another strength is that the cognitive tests chosen for the COSMOS-Web trial have been validated in cognitively normal populations, not those already impaired.

A limitation, however, is in the demographics of the study. The patient population was overwhelmingly White (93%), 67% were female, and they were well educated (94.8% having completed some college or beyond). Their baseline health was good; only 4.7% had a history of cardiovascular disease. Although generalizability of the study results from this population may be concerning,relative benefits of supplementation in this healthy, generally well-nourished and educated group may be lower than might be expected in a more nutritionally and educationally challenged population.

Finally, the difference between the placebo and active supplementation groups was small. Whether this less-than-1-word difference in immediate memory recall is noticeable by a patient is questionable. Both groups improved in their test performance over time—a consequence of serial cognitive tests of any kind. Although the authors calculated that the difference in recall translates to a 3-year reduction in age-related memory decline, it is hard to reconcile that with the fact that both groups actually improved over the 3 years of the study. ●

Acknowledgement

The author would like to thank JoAnn Manson, MD, DrPH, NCMP, for her assistance in evaluating the study.

Physicians have some of the highest rates of burnout among all professions.¹ Complicating matters is that clinicians (including residents)² may avoid seeking treatment out of fear it will affect their license or privileges.³ In this article, we consider burnout in greater detail, as well as ways of successfully addressing the level of burnout in the profession (FIGURE 1), including steps individual practitioners, health care entities, and regulators should consider to reduce burnout and its harmful effects.

How burnout becomes a problem

Six general factors are commonly identified as leading to clinician career dissatisfaction and burnout:⁴

1. work overload

2. lack of autonomy and control

3. inadequate rewards, financial and  otherwise

4. work-home schedules

5. perception of lack of fairness

6. values conflict between the clinician and employer (including a breakdown of professional community). 

At the top of the list of causes of burnout is often “administrative and bureaucratic headaches.”⁵ More specifically, electronic health records (EHRs), including computerized order entry, is commonly cited as a major cause of burnout.^6,7 According to some studies, clinicians spend as much as 49% of working time doing clerical work,⁸ and studies found the extension of work into home life.⁹

Increased measurement of performance metrics in health care services are a significant contributor to physician burnout.¹⁰ These include pressure to see more patients, perform more procedures, and respond quickly to patient requests (eg, through email).⁷ As we will see, medical malpractice cases, or the risk of such cases, have also played a role in burnout in some medical specialties.¹¹ The pandemic also contributed, at least temporarily, to burnout.^12,13

Rates of burnout among physicians are notably higher than among the general population¹⁴ or other professions.⁶ Although physicians have generally entered clinical practice with lower rates of burnout than the general population,¹⁵ The American College of Obstetricians and Gynecologists (ACOG) reports that 40% to 75% of ObGyns “experience some form of professional burnout.”^16,17 Other source(s) cite that 53% of ObGyns report burnout (TABLE 1).

Burnout undoubtedly contributes to professionals leaving practice, leading to a significant shortage of ObGyns.¹⁸ It also raises several significant legal concerns. Despite the enormity and seriousness of the problem, there is considerable optimism and assurance that the epidemic of burnout is solvable on the individual, specialty, and profession-wide levels. ACOG and other organizations have made suggestions for physicians, the profession, and to health care institutions for reducing burnout.¹⁹ This is not to say that solutions are simple or easy for individual professionals or institutions, but they are within the reach of the profession (FIGURE 2).

Costs of clinician burnout

Burnout is endemic among health care providers, with numerous studies detailing the professional, emotional, and financial costs. Prior to the pandemic, one analysis of nationwide fiscal costs associated with burnout estimated an annual cost of $4.6B due to physician turnover and reduced clinical hours.²¹ The COVID-19 epidemic has by all accounts worsened rates of health care worker burnout, particularly for those in high patient-contact positions.²²

Female clinicians appear to be differentially affected; in one recent study women reported symptoms of burnout at twice the rate of their male counterparts.²³ Whether burnout rates will return to pre-pandemic levels remains an open question, but since burnout is frequently related to one’s own assessment of work-life balance, it is possible that a longer term shift in burnout rates associated with post-pandemic occupational attitudes will be observed.

Combining factors contribute to burnout

Burnout is a universal occupational hazard, but extant data suggest that physicians and other health care providers may be at higher risk. Among physicians, younger age, female gender, and front-line specialty status appear associated with higher burnout rates.²⁴ Given that ObGyn physicians are overwhelmingly female (60% of physicians and 86% of residents),^25,26 gender-related burnout factors exist alongside other specific occupational burnout risks. While gender parity has been achieved among health care providers, gender disparities persist in terms of those in leadership positions, compensation, and other factors.²²

The smattering of evidence suggesting that ObGyns have higher rates of burnout than many other specialties is understandable given the unique legal challenges confronting ObGyn practice. This may be of special significance because ObGyn malpractice insurance rates are among the highest of all specialties.²⁷ The overall shortage of ObGyns has been exacerbated by the demonstrated negative effects on training and workforce representation stemming from recent legislation that has the effect of criminalizing certain aspects of ObGyn practice;²⁸ for instance, uncertainty regarding abortion regulations.

These negative effects are particularly heightened in states in which the law is in flux or where there are continuing efforts to substantially limit access to abortion. The efforts to increase civil and even criminal penalties related to abortion care challenge ObGyns’ professional practices, as legal rules are frequently changing. In some states, ObGyns may face additional workloads secondary to a flight of ObGyns from restrictive jurisdictions in addition to legal and professional repercussions. In a small study of 19 genetic counselors dealing with restrictive legislation in the state of Ohio,²⁹ increased stress and burnout rates were identified as a consequence of practice uncertainties under this legislation. It is certain that other professionals working in reproductive health care are similarly affected.³⁰

Continue to: Assessment of burnout...

Numerous scales for the assessment of burnout exist. Of these, the 22-item Maslach Burnout Inventory (MBI) is the best studied. The MBI is a well-investigated tool for assessing burnout. The MBI consists of 3 major subscales measuring overall burnout, emotional exhaustion, depersonalization, and low personal accomplishment. It exists in numerous forms. For instance, the MBI-HSS (MP), adapted for medical personnel, is available. However, the most commonly used form for assessing burnout in clinicians is the MBI-HHS (Human Services Survey); approximately 85% of all burnout studies examined in a recent meta-analysis used this survey version.³¹ As those authors commented, while burnout is a recognized phenomenon, a great deal of variability in study design, interpretation of subscale scores, and sample selection makes generalizations regarding burnout difficult to assess.

The MBI in various forms has been extensively used over the past 40 years to assess burnout amongst physicians and physicians in training. While not the only instrument designed to measure such factors, it is by far the most prevalent. Williamson and colleagues³² compared the MBI with several other measures of quality of life and found good correlation between the various instruments used, a finding replicated by other studies.³³ Brady and colleagues compared item responses to the Stanford Professional Fulfillment Index and the Min-Z Single-item Burnout scale (a 1-item screening measure) to MBI’s Emotional Exhaustion and Depersonalization subscales. Basing their findings on a survey of more than 1,300 physicians, they found that all analyzed scales were significantly correlated with such adverse outcomes as depression, distress, or intent to leave the profession.

It is important to note that most surveys of clinician burnout were conducted prior to the pandemic. While the psychometric analyses of the MBI and other scales are likely still germane, observed rates of clinician burnout have likely increased. Thus, comparisons of pre- and post-pandemic studies should factor in an increase in the incidence and prevalence of burnout.

Management strategies

In general, there are several interventions for managing burnout³⁴:

• individual-focused (including self-care and communications-skills workshops)
• mindfulness training
• yoga
• meditation
• organizational/structural (workload reduction, schedule realignment, teamwork training, and group-delivered stress management interventions)
• combination(s) of the above.

There is little evidence to suggest that any particular individual intervention (whether delivered in individual or group-based formats) is superior to any other in treating clinician burnout. A recent analysis of 24 studies employing mindfulness-based interventions demonstrated generally positive results for such interventions.³⁵ Other studies have also found general support for mindfulness-based interventions, although mindfulness is often integrated with other stress-reduction techniques, such as meditation, yoga, and communication skills. Such interventions are nonspecific but generally effective.

An accumulation of evidence to date suggests that a combination of individual and organizational interventions is most effective in combatting clinician burnout. No individual intervention can be successful without addressing root causes, such as overscheduling, lack of organizational support, and the effect of restrictive legislation on practice.

Several large teaching hospitals have established programs to address physician and health care provider burnout. Notable among these is the Stanford University School of Medicine’s WellMD and WellPhD programs (https://wellmd.stanford.edu/about.html). These programs were described by Olson and colleagues³⁶ as using a model focused on practice efficiency, organizational culture, and personal resilience to enhance physicians’ well-being. (See “Aspects of the WellMD and WellPhD programs from Stanford University.”)

A growing number of institutions have established burnout programs to support physicians experiencing work/life imbalances and other aspects of burnout.³⁷ In general, these share common features of assessment, individual and/or group intervention, and organizational change. Fear of repercussion may be one factor preventing physicians from seeking individual treatment for burnout.³⁸ Importantly, they emphasize the need for professional confidentiality when offering treatment to patients within organizational settings. Those authors also reported that a focus on organizational engagement may be an important factor in addressing burnout in female physicians, as they tend to report lower levels of organizational engagement.

Continue to: Legal considerations...

Legal considerations

Until recently, physician burnout “received little notice in the legal literature.”³⁹ Although there have been burnout legal consequences in the past, the legal issues are now becoming more visible.⁴⁰

Medical malpractice