Douglas S. Paauw, MD

As we all face remarkable challenges in giving great care to our patients and maintaining great care for ourselves, I wanted to share a few thoughts I have had regarding difficult things I have seen in the past few months.

• Call centers: Yikes! I think this is an overlooked stress on the primary care system. In a cost-cutting effort, organizations have gone to call centers to handle incoming calls, and hold times can be enormous. My own organization often has wait times longer than 30 minutes. I recently called another organization and had a wait time more than 30 minutes. Patients become frustrated and will message their primary care team to intervene for scheduling issues then will arrive at their appointments frustrated by all the hassles.
• Difficult encounters: We all have visits that we know will be challenging. I think it is even more difficult when we enter the visit stressed and tired. I have always found that, when I am in a calm place, even the most difficult visits go much better. Our patients arrive at clinic visits more stressed and tired too, as they face the challenge of a stretched and overwhelmed primary care system.
• Limited availability of specialists: My organization has had a sharp increase in wait times for specialty care over the past few years. Waits for some specialties can be almost a year. A study by Reddy and colleagues found a wait time of 3 months for patients referred to gastroenterologists.¹ The lack of timely access to specialists adds to the stress and burden of primary care professionals. Managing problems deemed in need of subspecialty care as patients wait for appointments is difficult.
• Patient portals: Some practices are starting to figure this out this problem, others aren’t. Budd reviewed all the factors with the EHR that contribute to physician burnout.² Portals have added another source of patient care outside face-to-face visits that adds to physician work load; for many practices is not appropriately accounted for in effort or productivity measures. Some practices are now starting to charge for patient messaging, but this may require even more physician time in documentation and billing. Unless this directly helps the physician reduce work hours or improve compensation, then it may make the problem worse.

There is little mystery why it seems so hard ... it is! Many things have been added to the plate of primary care professionals (increased messaging, calming patients frustrated with the medical system, and increased need for bridging care while patients wait for specialty appointments). Our patients need us now more than ever to give excellent, compassionate care in a poorly functioning system. We need to be emotionally and physically healthy enough to be there for our patients. Prioritize your own needs.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Reddy K et al. Health Equity. 2018 Jun 1;2(1):103-8.

2. Budd J. J Prim Care Community Health. 2023 Apr 19.

As we all face remarkable challenges in giving great care to our patients and maintaining great care for ourselves, I wanted to share a few thoughts I have had regarding difficult things I have seen in the past few months.

• Call centers: Yikes! I think this is an overlooked stress on the primary care system. In a cost-cutting effort, organizations have gone to call centers to handle incoming calls, and hold times can be enormous. My own organization often has wait times longer than 30 minutes. I recently called another organization and had a wait time more than 30 minutes. Patients become frustrated and will message their primary care team to intervene for scheduling issues then will arrive at their appointments frustrated by all the hassles.
• Difficult encounters: We all have visits that we know will be challenging. I think it is even more difficult when we enter the visit stressed and tired. I have always found that, when I am in a calm place, even the most difficult visits go much better. Our patients arrive at clinic visits more stressed and tired too, as they face the challenge of a stretched and overwhelmed primary care system.
• Limited availability of specialists: My organization has had a sharp increase in wait times for specialty care over the past few years. Waits for some specialties can be almost a year. A study by Reddy and colleagues found a wait time of 3 months for patients referred to gastroenterologists.¹ The lack of timely access to specialists adds to the stress and burden of primary care professionals. Managing problems deemed in need of subspecialty care as patients wait for appointments is difficult.
• Patient portals: Some practices are starting to figure this out this problem, others aren’t. Budd reviewed all the factors with the EHR that contribute to physician burnout.² Portals have added another source of patient care outside face-to-face visits that adds to physician work load; for many practices is not appropriately accounted for in effort or productivity measures. Some practices are now starting to charge for patient messaging, but this may require even more physician time in documentation and billing. Unless this directly helps the physician reduce work hours or improve compensation, then it may make the problem worse.

There is little mystery why it seems so hard ... it is! Many things have been added to the plate of primary care professionals (increased messaging, calming patients frustrated with the medical system, and increased need for bridging care while patients wait for specialty appointments). Our patients need us now more than ever to give excellent, compassionate care in a poorly functioning system. We need to be emotionally and physically healthy enough to be there for our patients. Prioritize your own needs.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Reddy K et al. Health Equity. 2018 Jun 1;2(1):103-8.

2. Budd J. J Prim Care Community Health. 2023 Apr 19.

As we all face remarkable challenges in giving great care to our patients and maintaining great care for ourselves, I wanted to share a few thoughts I have had regarding difficult things I have seen in the past few months.

• Call centers: Yikes! I think this is an overlooked stress on the primary care system. In a cost-cutting effort, organizations have gone to call centers to handle incoming calls, and hold times can be enormous. My own organization often has wait times longer than 30 minutes. I recently called another organization and had a wait time more than 30 minutes. Patients become frustrated and will message their primary care team to intervene for scheduling issues then will arrive at their appointments frustrated by all the hassles.
• Difficult encounters: We all have visits that we know will be challenging. I think it is even more difficult when we enter the visit stressed and tired. I have always found that, when I am in a calm place, even the most difficult visits go much better. Our patients arrive at clinic visits more stressed and tired too, as they face the challenge of a stretched and overwhelmed primary care system.
• Limited availability of specialists: My organization has had a sharp increase in wait times for specialty care over the past few years. Waits for some specialties can be almost a year. A study by Reddy and colleagues found a wait time of 3 months for patients referred to gastroenterologists.¹ The lack of timely access to specialists adds to the stress and burden of primary care professionals. Managing problems deemed in need of subspecialty care as patients wait for appointments is difficult.
• Patient portals: Some practices are starting to figure this out this problem, others aren’t. Budd reviewed all the factors with the EHR that contribute to physician burnout.² Portals have added another source of patient care outside face-to-face visits that adds to physician work load; for many practices is not appropriately accounted for in effort or productivity measures. Some practices are now starting to charge for patient messaging, but this may require even more physician time in documentation and billing. Unless this directly helps the physician reduce work hours or improve compensation, then it may make the problem worse.

There is little mystery why it seems so hard ... it is! Many things have been added to the plate of primary care professionals (increased messaging, calming patients frustrated with the medical system, and increased need for bridging care while patients wait for specialty appointments). Our patients need us now more than ever to give excellent, compassionate care in a poorly functioning system. We need to be emotionally and physically healthy enough to be there for our patients. Prioritize your own needs.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Reddy K et al. Health Equity. 2018 Jun 1;2(1):103-8.

2. Budd J. J Prim Care Community Health. 2023 Apr 19.

An 85-year-old woman is brought to the emergency department after a syncopal episode. Her caregivers report a similar episode 2 weeks ago, but she recovered so quickly they did not seek evaluation for her.

Paauw_Doug_SEATTLE_2019_web.jpg

Medications: Omeprazole 20 mg, pravastatin 40 mg, citalopram 10 mg, albuterol, donepezil 10 mg, isosorbide mononitrate 60 mg, and calcium. On exam, blood pressure is 100/60 mm Hg, pulse 55. ECG indicates bradycardia with normal intervals. What drug most likely caused her syncope?

A. Citalopram

B. Pravastatin

C. Donepezil

D. Isosorbide

E. Calcium

This woman’s syncope is likely caused by donepezil. Citalopram can lengthen the QT interval, especially in elderly patients, but the normal intervals on ECG eliminate this possibility. Donepezil can cause bradycardia, which can contribute to syncope.

Hernandez and colleagues evaluated a cohort of veterans with dementia over an 8-year period.¹ They found that there was a 1.4-fold increased risk of bradycardia in patients with dementia treated with an acetylcholine inhibitor (compared with that in patients who were not taking these medications) and that there was a dose-dependent increase in risk for patients on donepezil.

Park-Wyllie et al. found in a study of 1.4 million older adults a greater than twofold risk of hospitalization for bradycardia in patients treated with a cholinesterase inhibitor.² Gill and colleagues performed a population-based cohort study of 19,803 elderly patients with dementia who were prescribed cholinesterase inhibitors, and compared them to age-matched controls.³ They found increased hospital visits for syncope in people receiving cholinesterase inhibitors (hazard ratio, 1.76; 95% confidence interval, 1.57-1.98). Other syncope-related events were also more common in people receiving cholinesterase inhibitors, compared with controls: hospital visits for bradycardia (HR, 1.69; 95% CI, 1.32-2.15), permanent pacemaker insertion (HR, 1.49; 95% CI, 1.12-2.00), and hip fracture (HR, 1.18; (95% CI, 1.04-1.34).

Nausea, vomiting, and weight loss are much more common than the rarer side effects of bradycardia and syncope. The frequency of gastroenterological side effects is up to 25%. Cholinesterase inhibitors have modest effects on cognitive function with a high number needed to treat (NNT) of 10, and an NNT as high as 100 for global function. The number needed to harm (NNH) is 4, when gastrointestinal symptoms are added in.⁴ Another important, problematic side effect of cholinesterase inhibitors is urinary incontinence. This often leads to patients receiving medications, to combat this side effect, that may worsen cognitive function.

Another commonly used medication that scares me in certain circumstances is trimethoprim-sulfamethoxazole. My main concern is when it is used in patients who are elderly, have chronic kidney disease, or are taking other medications that can cause hyperkalemia (ACEIs, ARBs, potassium-sparing diuretics including spironolactone). Hyperkalemia is a real concern in these patient populations. Trimethoprim reduces renal potassium excretion through the competitive inhibition of sodium channels in the distal nephron, in a manner similar to the potassium-sparing diuretic amiloride. Hospitalizations for hyperkalemia are more common in patients who take ACEIs and ARBs and are prescribed trimethoprim-sulfamethoxazole, compared with other antibiotics.⁵

Sudden cardiac death is also more common in patients who are taking ACEIs or ARBs and receive trimethoprim-sulfamethoxazole.⁶ Trimethoprim-sulfamethoxazole also has a powerful interaction with warfarin, both displacing warfarin from albumin and inhibiting its metabolism. It raises the INR (international normalized ratio) in warfarin-treated patients much greater than do other antibiotics.⁷
 

Pearls

• Think carefully about the use of cholinesterase inhibitors because of the unfavorable NNH vs. NNT.
• Use caution prescribing trimethoprim for patients who are elderly, especially if they are on an ACEI, an ARB, or spironolactone, and in patients with chronic kidney disease.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Hernandez RK et al. J Am Geriatr Soc. 2009;57:1997-2003.

2. Park-Wyllie LY et al. PLoS Med. 2009;6:e1000157.

3. Gill SS et al. Arch Intern Med 2009;169:867-73.

4. Peters KR. J Am Geriatr Soc. 2013 Jul;61(7):1170-4.

5. Antoniou TN et al. Arch Intern Med. 2010;170(12):1045-9.

6. Fralick M et al. BMJ. 2014 Oct 30;349:g6196.

7. Glasheen JJ et al. J Gen Intern Med. 2005 Jul;20(7):653-6.

An 85-year-old woman is brought to the emergency department after a syncopal episode. Her caregivers report a similar episode 2 weeks ago, but she recovered so quickly they did not seek evaluation for her.

Paauw_Doug_SEATTLE_2019_web.jpg

Medications: Omeprazole 20 mg, pravastatin 40 mg, citalopram 10 mg, albuterol, donepezil 10 mg, isosorbide mononitrate 60 mg, and calcium. On exam, blood pressure is 100/60 mm Hg, pulse 55. ECG indicates bradycardia with normal intervals. What drug most likely caused her syncope?

A. Citalopram

B. Pravastatin

C. Donepezil

D. Isosorbide

E. Calcium

This woman’s syncope is likely caused by donepezil. Citalopram can lengthen the QT interval, especially in elderly patients, but the normal intervals on ECG eliminate this possibility. Donepezil can cause bradycardia, which can contribute to syncope.

Hernandez and colleagues evaluated a cohort of veterans with dementia over an 8-year period.¹ They found that there was a 1.4-fold increased risk of bradycardia in patients with dementia treated with an acetylcholine inhibitor (compared with that in patients who were not taking these medications) and that there was a dose-dependent increase in risk for patients on donepezil.

Park-Wyllie et al. found in a study of 1.4 million older adults a greater than twofold risk of hospitalization for bradycardia in patients treated with a cholinesterase inhibitor.² Gill and colleagues performed a population-based cohort study of 19,803 elderly patients with dementia who were prescribed cholinesterase inhibitors, and compared them to age-matched controls.³ They found increased hospital visits for syncope in people receiving cholinesterase inhibitors (hazard ratio, 1.76; 95% confidence interval, 1.57-1.98). Other syncope-related events were also more common in people receiving cholinesterase inhibitors, compared with controls: hospital visits for bradycardia (HR, 1.69; 95% CI, 1.32-2.15), permanent pacemaker insertion (HR, 1.49; 95% CI, 1.12-2.00), and hip fracture (HR, 1.18; (95% CI, 1.04-1.34).

Nausea, vomiting, and weight loss are much more common than the rarer side effects of bradycardia and syncope. The frequency of gastroenterological side effects is up to 25%. Cholinesterase inhibitors have modest effects on cognitive function with a high number needed to treat (NNT) of 10, and an NNT as high as 100 for global function. The number needed to harm (NNH) is 4, when gastrointestinal symptoms are added in.⁴ Another important, problematic side effect of cholinesterase inhibitors is urinary incontinence. This often leads to patients receiving medications, to combat this side effect, that may worsen cognitive function.

Another commonly used medication that scares me in certain circumstances is trimethoprim-sulfamethoxazole. My main concern is when it is used in patients who are elderly, have chronic kidney disease, or are taking other medications that can cause hyperkalemia (ACEIs, ARBs, potassium-sparing diuretics including spironolactone). Hyperkalemia is a real concern in these patient populations. Trimethoprim reduces renal potassium excretion through the competitive inhibition of sodium channels in the distal nephron, in a manner similar to the potassium-sparing diuretic amiloride. Hospitalizations for hyperkalemia are more common in patients who take ACEIs and ARBs and are prescribed trimethoprim-sulfamethoxazole, compared with other antibiotics.⁵

Sudden cardiac death is also more common in patients who are taking ACEIs or ARBs and receive trimethoprim-sulfamethoxazole.⁶ Trimethoprim-sulfamethoxazole also has a powerful interaction with warfarin, both displacing warfarin from albumin and inhibiting its metabolism. It raises the INR (international normalized ratio) in warfarin-treated patients much greater than do other antibiotics.⁷
 

Pearls

• Think carefully about the use of cholinesterase inhibitors because of the unfavorable NNH vs. NNT.
• Use caution prescribing trimethoprim for patients who are elderly, especially if they are on an ACEI, an ARB, or spironolactone, and in patients with chronic kidney disease.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Hernandez RK et al. J Am Geriatr Soc. 2009;57:1997-2003.

2. Park-Wyllie LY et al. PLoS Med. 2009;6:e1000157.

3. Gill SS et al. Arch Intern Med 2009;169:867-73.

4. Peters KR. J Am Geriatr Soc. 2013 Jul;61(7):1170-4.

5. Antoniou TN et al. Arch Intern Med. 2010;170(12):1045-9.

6. Fralick M et al. BMJ. 2014 Oct 30;349:g6196.

7. Glasheen JJ et al. J Gen Intern Med. 2005 Jul;20(7):653-6.

An 85-year-old woman is brought to the emergency department after a syncopal episode. Her caregivers report a similar episode 2 weeks ago, but she recovered so quickly they did not seek evaluation for her.

Paauw_Doug_SEATTLE_2019_web.jpg

Medications: Omeprazole 20 mg, pravastatin 40 mg, citalopram 10 mg, albuterol, donepezil 10 mg, isosorbide mononitrate 60 mg, and calcium. On exam, blood pressure is 100/60 mm Hg, pulse 55. ECG indicates bradycardia with normal intervals. What drug most likely caused her syncope?

A. Citalopram

B. Pravastatin

C. Donepezil

D. Isosorbide

E. Calcium

This woman’s syncope is likely caused by donepezil. Citalopram can lengthen the QT interval, especially in elderly patients, but the normal intervals on ECG eliminate this possibility. Donepezil can cause bradycardia, which can contribute to syncope.

Hernandez and colleagues evaluated a cohort of veterans with dementia over an 8-year period.¹ They found that there was a 1.4-fold increased risk of bradycardia in patients with dementia treated with an acetylcholine inhibitor (compared with that in patients who were not taking these medications) and that there was a dose-dependent increase in risk for patients on donepezil.

Park-Wyllie et al. found in a study of 1.4 million older adults a greater than twofold risk of hospitalization for bradycardia in patients treated with a cholinesterase inhibitor.² Gill and colleagues performed a population-based cohort study of 19,803 elderly patients with dementia who were prescribed cholinesterase inhibitors, and compared them to age-matched controls.³ They found increased hospital visits for syncope in people receiving cholinesterase inhibitors (hazard ratio, 1.76; 95% confidence interval, 1.57-1.98). Other syncope-related events were also more common in people receiving cholinesterase inhibitors, compared with controls: hospital visits for bradycardia (HR, 1.69; 95% CI, 1.32-2.15), permanent pacemaker insertion (HR, 1.49; 95% CI, 1.12-2.00), and hip fracture (HR, 1.18; (95% CI, 1.04-1.34).

Nausea, vomiting, and weight loss are much more common than the rarer side effects of bradycardia and syncope. The frequency of gastroenterological side effects is up to 25%. Cholinesterase inhibitors have modest effects on cognitive function with a high number needed to treat (NNT) of 10, and an NNT as high as 100 for global function. The number needed to harm (NNH) is 4, when gastrointestinal symptoms are added in.⁴ Another important, problematic side effect of cholinesterase inhibitors is urinary incontinence. This often leads to patients receiving medications, to combat this side effect, that may worsen cognitive function.

Another commonly used medication that scares me in certain circumstances is trimethoprim-sulfamethoxazole. My main concern is when it is used in patients who are elderly, have chronic kidney disease, or are taking other medications that can cause hyperkalemia (ACEIs, ARBs, potassium-sparing diuretics including spironolactone). Hyperkalemia is a real concern in these patient populations. Trimethoprim reduces renal potassium excretion through the competitive inhibition of sodium channels in the distal nephron, in a manner similar to the potassium-sparing diuretic amiloride. Hospitalizations for hyperkalemia are more common in patients who take ACEIs and ARBs and are prescribed trimethoprim-sulfamethoxazole, compared with other antibiotics.⁵

Sudden cardiac death is also more common in patients who are taking ACEIs or ARBs and receive trimethoprim-sulfamethoxazole.⁶ Trimethoprim-sulfamethoxazole also has a powerful interaction with warfarin, both displacing warfarin from albumin and inhibiting its metabolism. It raises the INR (international normalized ratio) in warfarin-treated patients much greater than do other antibiotics.⁷
 

Pearls

• Think carefully about the use of cholinesterase inhibitors because of the unfavorable NNH vs. NNT.
• Use caution prescribing trimethoprim for patients who are elderly, especially if they are on an ACEI, an ARB, or spironolactone, and in patients with chronic kidney disease.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Hernandez RK et al. J Am Geriatr Soc. 2009;57:1997-2003.

2. Park-Wyllie LY et al. PLoS Med. 2009;6:e1000157.

3. Gill SS et al. Arch Intern Med 2009;169:867-73.

4. Peters KR. J Am Geriatr Soc. 2013 Jul;61(7):1170-4.

5. Antoniou TN et al. Arch Intern Med. 2010;170(12):1045-9.

6. Fralick M et al. BMJ. 2014 Oct 30;349:g6196.

7. Glasheen JJ et al. J Gen Intern Med. 2005 Jul;20(7):653-6.

A 43-year-old man presents to the emergency department with dizziness and a 6-hour history of passing maroon stool. He has been in good health with the only medical problem in his history being depression.

He is taking sertraline. On exam, his blood pressure is 100/60, and his pulse is 100, both while lying down. His blood pressure while standing is 90/60 and his pulse while standing is 130. The rest of his exam is normal. His lab values include hemoglobin of 10, hematocrit of 30, white blood cell of 4.6, platelet count of 175,000, sodium of 142, chloride of 100, bicarbonate of 24, potassium of 3.8, blood urea nitrogen (BUN) of 38, and creatinine clearance (Cr) of 1.1.

Paauw_Doug2_web.jpg

What is the most likely source of his bleeding?

A. Gastric ulcer

B. Meckel’s diverticulum

C. Arteriovenous malformation

D. Diverticulosis

E. Hemorrhoids

What makes the most sense

The most likely cause of this patient’s maroon stool is an upper gastrointestinal bleed, so it would make the most sense for a gastric ulcer to be the source of his bleeding. The clue here is the very high BUN/Cr ratio.

We were all taught early in our training that a high BUN/Cr ratio represented volume depletion. This is certainly the most common cause, but very high BUN/Cr ratios (over 30) can represent causes beyond volume depletion.

Witting and colleagues studied factors that predicted upper GI bleeding in patients presenting without hematemesis. They found that the three strongest predictors were black stool (odds ratio, 16.6), BUN/Cr ratio greater than 30 (OR, 10), and age greater than 50 (OR, 8.4).¹

Srygley and colleagues reviewed high-quality studies of factors associated with upper GI bleeding.² Factors that were found to increase the likelihood of an upper gastrointestinal bleed were Melenic stool on exam (likelihood ratio, 25), blood or coffee grounds on nasogastric aspiration (LR, 9.6), and BUN/Cr ratio greater than 30 (LR, 7.5).

Very high BUN/Cr ratios can indicate problems other than UGI bleeding and volume depletion. High BUN/Cr ratios are seen in patients with heart failure.

Zhang and colleagues studied if a high BUN/Cr ratio helped distinguish heart failure from asthma and chronic obstructive pulmonary disease (COPD).³ They found that, compared with those in the asthma group, the BUN/Cr ratios were significantly increased in the heart failure group (P < .05), whereas no significant differences in BUN/Cr ratios were found between the asthma and COPD groups.

Cheang and colleagues conducted their own study, as well as a meta-analysis, looking to see if high BUN/Cr ratios predicted increased mortality in patients with acute heart failure.⁴ In the meta-analysis of 8 studies (including their own), they found that the highest BUN/Cr ratio category was associated with an 77% higher all-cause mortality than the lowest category (hazard ratio, 1.77; 95% confidence interval, 1.52-2.07).

High dose corticosteroids can raise BUN levels, especially in patients with chronic kidney disease, and cause unexpectedly high BUN/Cr ratios.
 

Pearl

Very high BUN/Cr ratios (greater than 30) can signify upper GI bleeding, heart failure, or high-dose corticosteroid use.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Am J Emerg Med. 2006 May;24(3):280-5.

2. JAMA. 2012;307(10):1072-9.

3. Comput Math Methods Med. 2022 Jul 21. doi: 10.1155/2022/4586458.

4. Cardiorenal Med. 2020;10:415-28.

A 43-year-old man presents to the emergency department with dizziness and a 6-hour history of passing maroon stool. He has been in good health with the only medical problem in his history being depression.

He is taking sertraline. On exam, his blood pressure is 100/60, and his pulse is 100, both while lying down. His blood pressure while standing is 90/60 and his pulse while standing is 130. The rest of his exam is normal. His lab values include hemoglobin of 10, hematocrit of 30, white blood cell of 4.6, platelet count of 175,000, sodium of 142, chloride of 100, bicarbonate of 24, potassium of 3.8, blood urea nitrogen (BUN) of 38, and creatinine clearance (Cr) of 1.1.

Paauw_Doug2_web.jpg

What is the most likely source of his bleeding?

A. Gastric ulcer

B. Meckel’s diverticulum

C. Arteriovenous malformation

D. Diverticulosis

E. Hemorrhoids

What makes the most sense

The most likely cause of this patient’s maroon stool is an upper gastrointestinal bleed, so it would make the most sense for a gastric ulcer to be the source of his bleeding. The clue here is the very high BUN/Cr ratio.

We were all taught early in our training that a high BUN/Cr ratio represented volume depletion. This is certainly the most common cause, but very high BUN/Cr ratios (over 30) can represent causes beyond volume depletion.

Witting and colleagues studied factors that predicted upper GI bleeding in patients presenting without hematemesis. They found that the three strongest predictors were black stool (odds ratio, 16.6), BUN/Cr ratio greater than 30 (OR, 10), and age greater than 50 (OR, 8.4).¹

Srygley and colleagues reviewed high-quality studies of factors associated with upper GI bleeding.² Factors that were found to increase the likelihood of an upper gastrointestinal bleed were Melenic stool on exam (likelihood ratio, 25), blood or coffee grounds on nasogastric aspiration (LR, 9.6), and BUN/Cr ratio greater than 30 (LR, 7.5).

Very high BUN/Cr ratios can indicate problems other than UGI bleeding and volume depletion. High BUN/Cr ratios are seen in patients with heart failure.

Zhang and colleagues studied if a high BUN/Cr ratio helped distinguish heart failure from asthma and chronic obstructive pulmonary disease (COPD).³ They found that, compared with those in the asthma group, the BUN/Cr ratios were significantly increased in the heart failure group (P < .05), whereas no significant differences in BUN/Cr ratios were found between the asthma and COPD groups.

Cheang and colleagues conducted their own study, as well as a meta-analysis, looking to see if high BUN/Cr ratios predicted increased mortality in patients with acute heart failure.⁴ In the meta-analysis of 8 studies (including their own), they found that the highest BUN/Cr ratio category was associated with an 77% higher all-cause mortality than the lowest category (hazard ratio, 1.77; 95% confidence interval, 1.52-2.07).

High dose corticosteroids can raise BUN levels, especially in patients with chronic kidney disease, and cause unexpectedly high BUN/Cr ratios.
 

Pearl

Very high BUN/Cr ratios (greater than 30) can signify upper GI bleeding, heart failure, or high-dose corticosteroid use.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Am J Emerg Med. 2006 May;24(3):280-5.

2. JAMA. 2012;307(10):1072-9.

3. Comput Math Methods Med. 2022 Jul 21. doi: 10.1155/2022/4586458.

4. Cardiorenal Med. 2020;10:415-28.

A 43-year-old man presents to the emergency department with dizziness and a 6-hour history of passing maroon stool. He has been in good health with the only medical problem in his history being depression.

He is taking sertraline. On exam, his blood pressure is 100/60, and his pulse is 100, both while lying down. His blood pressure while standing is 90/60 and his pulse while standing is 130. The rest of his exam is normal. His lab values include hemoglobin of 10, hematocrit of 30, white blood cell of 4.6, platelet count of 175,000, sodium of 142, chloride of 100, bicarbonate of 24, potassium of 3.8, blood urea nitrogen (BUN) of 38, and creatinine clearance (Cr) of 1.1.

Paauw_Doug2_web.jpg

What is the most likely source of his bleeding?

A. Gastric ulcer

B. Meckel’s diverticulum

C. Arteriovenous malformation

D. Diverticulosis

E. Hemorrhoids

What makes the most sense

The most likely cause of this patient’s maroon stool is an upper gastrointestinal bleed, so it would make the most sense for a gastric ulcer to be the source of his bleeding. The clue here is the very high BUN/Cr ratio.

We were all taught early in our training that a high BUN/Cr ratio represented volume depletion. This is certainly the most common cause, but very high BUN/Cr ratios (over 30) can represent causes beyond volume depletion.

Witting and colleagues studied factors that predicted upper GI bleeding in patients presenting without hematemesis. They found that the three strongest predictors were black stool (odds ratio, 16.6), BUN/Cr ratio greater than 30 (OR, 10), and age greater than 50 (OR, 8.4).¹

Srygley and colleagues reviewed high-quality studies of factors associated with upper GI bleeding.² Factors that were found to increase the likelihood of an upper gastrointestinal bleed were Melenic stool on exam (likelihood ratio, 25), blood or coffee grounds on nasogastric aspiration (LR, 9.6), and BUN/Cr ratio greater than 30 (LR, 7.5).

Very high BUN/Cr ratios can indicate problems other than UGI bleeding and volume depletion. High BUN/Cr ratios are seen in patients with heart failure.

Zhang and colleagues studied if a high BUN/Cr ratio helped distinguish heart failure from asthma and chronic obstructive pulmonary disease (COPD).³ They found that, compared with those in the asthma group, the BUN/Cr ratios were significantly increased in the heart failure group (P < .05), whereas no significant differences in BUN/Cr ratios were found between the asthma and COPD groups.

Cheang and colleagues conducted their own study, as well as a meta-analysis, looking to see if high BUN/Cr ratios predicted increased mortality in patients with acute heart failure.⁴ In the meta-analysis of 8 studies (including their own), they found that the highest BUN/Cr ratio category was associated with an 77% higher all-cause mortality than the lowest category (hazard ratio, 1.77; 95% confidence interval, 1.52-2.07).

High dose corticosteroids can raise BUN levels, especially in patients with chronic kidney disease, and cause unexpectedly high BUN/Cr ratios.
 

Pearl

Very high BUN/Cr ratios (greater than 30) can signify upper GI bleeding, heart failure, or high-dose corticosteroid use.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Am J Emerg Med. 2006 May;24(3):280-5.

2. JAMA. 2012;307(10):1072-9.

3. Comput Math Methods Med. 2022 Jul 21. doi: 10.1155/2022/4586458.

4. Cardiorenal Med. 2020;10:415-28.

A common sentiment shared by patients who are happy with their health care professionals is, “I feel heard and understood.” How do we become those professionals and make sure that we are doing a good job connecting and communicating with our patients?

Paauw_Doug_SEATTLE_2019_web.jpg

Here are a few suggestions on how to do this.
 

Practice intent listening

When a patient shares their symptoms with you, show genuine curiosity and concern. Ask clarifying questions. Ask how the symptom or problem is affecting their day-to-day life. Avoid quick, rapid-fire questions back at the patient. Do not accept a patient self-diagnosis.

When a patient with a first-time headache says they are having a migraine headache, for example, ask many clarifying questions to make sure you can make a diagnosis of headache type, then use all the information you have gathered to educate the patient on what you believe they have.

It is easy to jump to treatment, but we always want to make sure we have the diagnosis correct first. By intently listening, it also makes it much easier to tell a patient you do not know what is causing their symptoms, but that you and the patient will be vigilant for any future clues that may lead to a diagnosis.
 

Use terminology that patients understand

Rachael Gotlieb, MD, and colleagues published an excellent study with eye-opening results on common phrases we use as health care providers and how often patients do not understand them.

Only 9% of patients understood what was meant when they were asked if they have been febrile. Only 2% understood what was meant by “I am concerned the patient has an occult infection.” Only 21% understood that “your xray findings were quite impressive” was bad news.

It is easy to avoid these medical language traps, we just have to check our doctor speak. Ask, “Do you have a fever?” Say, “I am concerned you may have an infection that is hard to find.”

Several other terms we use all the time in explaining things to patients that I have found most patients do not understand are the terms bilateral, systemic, and significant. Think carefully as you explain things to patients and check back to have them repeat to you what they think you said.
 

Be comfortable saying you don’t know

Many symptoms in medicine end up not being diagnosable. When a patient shares symptoms that do not fit a pattern of a disease, it is important to share with them why you think it is okay to wait and watch, even if you do not have a diagnosis.

Patients find it comforting that you are so honest with them. Doing this also has the benefit of gaining patients’ trust when you are sure about something, because it tells them you don’t have an answer for everything.
 

Ask your patients what they think is causing their symptoms

This way, you know what their big fear is. You can address what they are worried about, even if it isn’t something you are considering.

Patients are often fearful of a disease a close friend or relative has, so when they get new symptoms, they fear diseases that we might not think of. By knowing what they are fearful of, you can reassure when appropriate.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

A common sentiment shared by patients who are happy with their health care professionals is, “I feel heard and understood.” How do we become those professionals and make sure that we are doing a good job connecting and communicating with our patients?

Paauw_Doug_SEATTLE_2019_web.jpg

Here are a few suggestions on how to do this.
 

Practice intent listening

When a patient shares their symptoms with you, show genuine curiosity and concern. Ask clarifying questions. Ask how the symptom or problem is affecting their day-to-day life. Avoid quick, rapid-fire questions back at the patient. Do not accept a patient self-diagnosis.

When a patient with a first-time headache says they are having a migraine headache, for example, ask many clarifying questions to make sure you can make a diagnosis of headache type, then use all the information you have gathered to educate the patient on what you believe they have.

It is easy to jump to treatment, but we always want to make sure we have the diagnosis correct first. By intently listening, it also makes it much easier to tell a patient you do not know what is causing their symptoms, but that you and the patient will be vigilant for any future clues that may lead to a diagnosis.
 

Use terminology that patients understand

Rachael Gotlieb, MD, and colleagues published an excellent study with eye-opening results on common phrases we use as health care providers and how often patients do not understand them.

Only 9% of patients understood what was meant when they were asked if they have been febrile. Only 2% understood what was meant by “I am concerned the patient has an occult infection.” Only 21% understood that “your xray findings were quite impressive” was bad news.

It is easy to avoid these medical language traps, we just have to check our doctor speak. Ask, “Do you have a fever?” Say, “I am concerned you may have an infection that is hard to find.”

Several other terms we use all the time in explaining things to patients that I have found most patients do not understand are the terms bilateral, systemic, and significant. Think carefully as you explain things to patients and check back to have them repeat to you what they think you said.
 

Be comfortable saying you don’t know

Many symptoms in medicine end up not being diagnosable. When a patient shares symptoms that do not fit a pattern of a disease, it is important to share with them why you think it is okay to wait and watch, even if you do not have a diagnosis.

Patients find it comforting that you are so honest with them. Doing this also has the benefit of gaining patients’ trust when you are sure about something, because it tells them you don’t have an answer for everything.
 

Ask your patients what they think is causing their symptoms

This way, you know what their big fear is. You can address what they are worried about, even if it isn’t something you are considering.

Patients are often fearful of a disease a close friend or relative has, so when they get new symptoms, they fear diseases that we might not think of. By knowing what they are fearful of, you can reassure when appropriate.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

A common sentiment shared by patients who are happy with their health care professionals is, “I feel heard and understood.” How do we become those professionals and make sure that we are doing a good job connecting and communicating with our patients?

Paauw_Doug_SEATTLE_2019_web.jpg

Here are a few suggestions on how to do this.
 

Practice intent listening

When a patient shares their symptoms with you, show genuine curiosity and concern. Ask clarifying questions. Ask how the symptom or problem is affecting their day-to-day life. Avoid quick, rapid-fire questions back at the patient. Do not accept a patient self-diagnosis.

When a patient with a first-time headache says they are having a migraine headache, for example, ask many clarifying questions to make sure you can make a diagnosis of headache type, then use all the information you have gathered to educate the patient on what you believe they have.

It is easy to jump to treatment, but we always want to make sure we have the diagnosis correct first. By intently listening, it also makes it much easier to tell a patient you do not know what is causing their symptoms, but that you and the patient will be vigilant for any future clues that may lead to a diagnosis.
 

Use terminology that patients understand

Rachael Gotlieb, MD, and colleagues published an excellent study with eye-opening results on common phrases we use as health care providers and how often patients do not understand them.

Only 9% of patients understood what was meant when they were asked if they have been febrile. Only 2% understood what was meant by “I am concerned the patient has an occult infection.” Only 21% understood that “your xray findings were quite impressive” was bad news.

It is easy to avoid these medical language traps, we just have to check our doctor speak. Ask, “Do you have a fever?” Say, “I am concerned you may have an infection that is hard to find.”

Several other terms we use all the time in explaining things to patients that I have found most patients do not understand are the terms bilateral, systemic, and significant. Think carefully as you explain things to patients and check back to have them repeat to you what they think you said.
 

Be comfortable saying you don’t know

Many symptoms in medicine end up not being diagnosable. When a patient shares symptoms that do not fit a pattern of a disease, it is important to share with them why you think it is okay to wait and watch, even if you do not have a diagnosis.

Patients find it comforting that you are so honest with them. Doing this also has the benefit of gaining patients’ trust when you are sure about something, because it tells them you don’t have an answer for everything.
 

Ask your patients what they think is causing their symptoms

This way, you know what their big fear is. You can address what they are worried about, even if it isn’t something you are considering.

Patients are often fearful of a disease a close friend or relative has, so when they get new symptoms, they fear diseases that we might not think of. By knowing what they are fearful of, you can reassure when appropriate.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

A 70-year-old man with a history of coronary artery disease (CAD) is seen for concerns about erectile dysfunction (ED). He is requesting sildenafil. He has stable angina, having chest pain with exercise. He uses sublingual nitroglycerin (SL NTG prn) about three times a month. His blood pressure is 140/70 mm Hg. His pulse is 60 beats per minute. His current medications are lisinopril, atorvastatin, aspirin, and SL NTG tablets as needed.

What would you recommend?

A. No sildenafil; refer to urologist for other ED options.

B. Okay to use sildenafil if greater than 6 hours from NTG use.

C. Recommend tadalafil.

Is coprescribing nitrates and phosphodiesterase inhibitors safe?

The FDA warns against the use of phosphodiesterase inhibitors in patients taking nitrates. Combining nitrates with phosphodiesterase type 5 (PDE5) inhibitors is contraindicated because of a synergistic blood pressure lowering effect.¹ This warning/contraindication was based on theoretical concerns, as well as concern that of the first 130 deaths reported in patients who took sildenafil, 16 of the patients also were taking nitrates.²

Parker and colleagues studied the safety of giving IV nitroglycerin to patients with coronary artery disease (CAD) who have taken sildenafil.³ The study was a randomized, placebo-controlled, crossover trial. Participants received sildenafil 100 mg or placebo, then received intravenous NTG. Patients who received sildenafil had a 4-6 mm Hg systolic BP drop compared with those who took the placebo. There was no difference in severe events between the sildenafil and placebo groups. The blood levels of nitroglycerin in this study were very likely much higher than the levels that occur with SL NTG.

A recent study by Holt et al. looked at overall cardiovascular outcomes with coprescribing nitrates and phosphodiesterase inhibitors.⁴ The study was a case crossover design, using a nationwide Danish health registry over the period of 2000-2018. In 2000, the rate of coprescribing of phosphodiesterase inhibitors in ischemic heart disease patients on nitrates was .9 per 100 persons/year and rose to 19.5 prescriptions per 100 persons/year in 2018. During this same time, no statistically significant association was found between the coprescription of nitrates with PDE5 inhibitors and the risk for MI, cardiac arrest, syncope, stroke, or an adverse drug event.
 

Does nitroglycerin response help determine cause of chest pain?

Nitroglycerin response has long been used as a clinical indicator on whether a patient’s chest pain is cardiac or not. Eric A. Shry, MD, and his colleagues looked at the usefulness of nitroglycerin response in the treatment of chest pain as a predictor of ischemic chest pain in an emergency department setting.⁵

The study was a retrospective review of 223 patients who presented to the emergency department over a 5-month period with ongoing chest pain. They looked at patients who had ongoing chest pain in the emergency department, received nitroglycerin, and did not receive any therapy other than aspirin within 10 minutes of receiving nitroglycerin. Response to the drug was compared with the final diagnosis of cardiac versus noncardiac chest pain.

Of the patients with a final determination of cardiac chest pain, 88% had a nitroglycerin response, whereas 92% of the patients with noncardiac chest pain had a nitroglycerin response (P = .50).

Deborah B. Diercks, MD, and her colleagues looked at improvement in chest pain scores in the emergency department in patients treated with nitroglycerin and whether it correlated with a cardiac etiology of chest pain.⁶ The study was a prospective, observational study of 664 patients in an urban tertiary care emergency department over a 16-month period. An 11-point numeric chest pain scale was assessed and recorded by research assistants before and 5 minutes after receiving nitroglycerin. The scale ranged from 0 (no pain) to 10 (worst pain imaginable).

A final diagnosis of a cardiac etiology for chest pain was found in 18% of the patients in the study. Of the patients who had cardiac-related chest pain, 20% had no reduction in pain with nitroglycerin, compared with 19% of the patients without cardiac-related chest pain.

A complete or significant reduction in chest pain occurred with nitroglycerin in 31% of patients with cardiac chest pain and 27% of the patients without cardiac chest pain (P = .76).

Nitroglycerin response does not appear to be helpful in distinguishing cardiac from noncardiac chest pain, but a study by His and colleagues offers an interesting twist.⁷

The authors of this research studied 118 patients looking to see if the side effect of headache with nitroglycerin was more common in patients who did not have CAD than in those who did. All the patients had a varying degree of relief of chest pain with NTG administration within 10 minutes. In patients with normal coronary arteries or minimal CAD, 73% had headache caused by NTG, whereas in patients with obstructive CAD, only 23% had headache after NTG use.
 

Take-home messages

• Short acting nitroglycerin may not be a contraindication for phosphodiesterase inhibitor use.
• More data are still needed.
• Nitroglycerin response does not help distinguish chest pain from CAD from noncardiac causes.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Schwartz BG, Kloner RA. Drug interactions with phosphodiesterase-5 inhibitors used for the treatment of erectile dysfunction or pulmonary hypertension. Circulation. 2010;122:88-95.

2. Kloner RA, Zusman RM. Cardiovascular effects of sildenafil citrate and recommendations for its use. Am J Cardiol. 1999 Sep 9;84(5B):11N-17N.

3. Parker JD et al. Safety of intravenous nitroglycerin after administration of sildenafil citrate to men with coronary artery disease: A double-blind, placebo-controlled, randomized, crossover trial. Crit Care Med. 2007;35:1863-8.

4. Holt A et al. Adverse events associated with coprescription of phosphodiesterase type inhibitors and oral organic nitrates in male patients with ischemic heart disease. Ann Intern Med. 2022 Jun;175(6):774-82.

5. Shry EA et al. Usefulness of the response to sublingual nitroglycerin as a predictor of ischemic chest pain in the emergency department. Am J Cardiol. 2002 Dec 1;90(11):1264-6.

6. Diercks DB et al. Changes in the numeric descriptive scale for pain after sublingual nitroglycerin do not predict cardiac etiology of chest pain. Ann Emerg Med. 2005 Jun;45(6):581-5.

7. His DH et al. Headache response to glyceryl trinitrate in patients with and without obstructive coronary artery disease. Heart 2005;91:1164-6.

A 70-year-old man with a history of coronary artery disease (CAD) is seen for concerns about erectile dysfunction (ED). He is requesting sildenafil. He has stable angina, having chest pain with exercise. He uses sublingual nitroglycerin (SL NTG prn) about three times a month. His blood pressure is 140/70 mm Hg. His pulse is 60 beats per minute. His current medications are lisinopril, atorvastatin, aspirin, and SL NTG tablets as needed.

What would you recommend?

A. No sildenafil; refer to urologist for other ED options.

B. Okay to use sildenafil if greater than 6 hours from NTG use.

C. Recommend tadalafil.

Is coprescribing nitrates and phosphodiesterase inhibitors safe?

The FDA warns against the use of phosphodiesterase inhibitors in patients taking nitrates. Combining nitrates with phosphodiesterase type 5 (PDE5) inhibitors is contraindicated because of a synergistic blood pressure lowering effect.¹ This warning/contraindication was based on theoretical concerns, as well as concern that of the first 130 deaths reported in patients who took sildenafil, 16 of the patients also were taking nitrates.²

Parker and colleagues studied the safety of giving IV nitroglycerin to patients with coronary artery disease (CAD) who have taken sildenafil.³ The study was a randomized, placebo-controlled, crossover trial. Participants received sildenafil 100 mg or placebo, then received intravenous NTG. Patients who received sildenafil had a 4-6 mm Hg systolic BP drop compared with those who took the placebo. There was no difference in severe events between the sildenafil and placebo groups. The blood levels of nitroglycerin in this study were very likely much higher than the levels that occur with SL NTG.

A recent study by Holt et al. looked at overall cardiovascular outcomes with coprescribing nitrates and phosphodiesterase inhibitors.⁴ The study was a case crossover design, using a nationwide Danish health registry over the period of 2000-2018. In 2000, the rate of coprescribing of phosphodiesterase inhibitors in ischemic heart disease patients on nitrates was .9 per 100 persons/year and rose to 19.5 prescriptions per 100 persons/year in 2018. During this same time, no statistically significant association was found between the coprescription of nitrates with PDE5 inhibitors and the risk for MI, cardiac arrest, syncope, stroke, or an adverse drug event.
 

Does nitroglycerin response help determine cause of chest pain?

Nitroglycerin response has long been used as a clinical indicator on whether a patient’s chest pain is cardiac or not. Eric A. Shry, MD, and his colleagues looked at the usefulness of nitroglycerin response in the treatment of chest pain as a predictor of ischemic chest pain in an emergency department setting.⁵

The study was a retrospective review of 223 patients who presented to the emergency department over a 5-month period with ongoing chest pain. They looked at patients who had ongoing chest pain in the emergency department, received nitroglycerin, and did not receive any therapy other than aspirin within 10 minutes of receiving nitroglycerin. Response to the drug was compared with the final diagnosis of cardiac versus noncardiac chest pain.

Of the patients with a final determination of cardiac chest pain, 88% had a nitroglycerin response, whereas 92% of the patients with noncardiac chest pain had a nitroglycerin response (P = .50).

Deborah B. Diercks, MD, and her colleagues looked at improvement in chest pain scores in the emergency department in patients treated with nitroglycerin and whether it correlated with a cardiac etiology of chest pain.⁶ The study was a prospective, observational study of 664 patients in an urban tertiary care emergency department over a 16-month period. An 11-point numeric chest pain scale was assessed and recorded by research assistants before and 5 minutes after receiving nitroglycerin. The scale ranged from 0 (no pain) to 10 (worst pain imaginable).

A final diagnosis of a cardiac etiology for chest pain was found in 18% of the patients in the study. Of the patients who had cardiac-related chest pain, 20% had no reduction in pain with nitroglycerin, compared with 19% of the patients without cardiac-related chest pain.

A complete or significant reduction in chest pain occurred with nitroglycerin in 31% of patients with cardiac chest pain and 27% of the patients without cardiac chest pain (P = .76).

Nitroglycerin response does not appear to be helpful in distinguishing cardiac from noncardiac chest pain, but a study by His and colleagues offers an interesting twist.⁷

The authors of this research studied 118 patients looking to see if the side effect of headache with nitroglycerin was more common in patients who did not have CAD than in those who did. All the patients had a varying degree of relief of chest pain with NTG administration within 10 minutes. In patients with normal coronary arteries or minimal CAD, 73% had headache caused by NTG, whereas in patients with obstructive CAD, only 23% had headache after NTG use.
 

Take-home messages

• Short acting nitroglycerin may not be a contraindication for phosphodiesterase inhibitor use.
• More data are still needed.
• Nitroglycerin response does not help distinguish chest pain from CAD from noncardiac causes.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Schwartz BG, Kloner RA. Drug interactions with phosphodiesterase-5 inhibitors used for the treatment of erectile dysfunction or pulmonary hypertension. Circulation. 2010;122:88-95.

2. Kloner RA, Zusman RM. Cardiovascular effects of sildenafil citrate and recommendations for its use. Am J Cardiol. 1999 Sep 9;84(5B):11N-17N.

3. Parker JD et al. Safety of intravenous nitroglycerin after administration of sildenafil citrate to men with coronary artery disease: A double-blind, placebo-controlled, randomized, crossover trial. Crit Care Med. 2007;35:1863-8.

4. Holt A et al. Adverse events associated with coprescription of phosphodiesterase type inhibitors and oral organic nitrates in male patients with ischemic heart disease. Ann Intern Med. 2022 Jun;175(6):774-82.

5. Shry EA et al. Usefulness of the response to sublingual nitroglycerin as a predictor of ischemic chest pain in the emergency department. Am J Cardiol. 2002 Dec 1;90(11):1264-6.

6. Diercks DB et al. Changes in the numeric descriptive scale for pain after sublingual nitroglycerin do not predict cardiac etiology of chest pain. Ann Emerg Med. 2005 Jun;45(6):581-5.

7. His DH et al. Headache response to glyceryl trinitrate in patients with and without obstructive coronary artery disease. Heart 2005;91:1164-6.

A 70-year-old man with a history of coronary artery disease (CAD) is seen for concerns about erectile dysfunction (ED). He is requesting sildenafil. He has stable angina, having chest pain with exercise. He uses sublingual nitroglycerin (SL NTG prn) about three times a month. His blood pressure is 140/70 mm Hg. His pulse is 60 beats per minute. His current medications are lisinopril, atorvastatin, aspirin, and SL NTG tablets as needed.

What would you recommend?

A. No sildenafil; refer to urologist for other ED options.

B. Okay to use sildenafil if greater than 6 hours from NTG use.

C. Recommend tadalafil.

Is coprescribing nitrates and phosphodiesterase inhibitors safe?

The FDA warns against the use of phosphodiesterase inhibitors in patients taking nitrates. Combining nitrates with phosphodiesterase type 5 (PDE5) inhibitors is contraindicated because of a synergistic blood pressure lowering effect.¹ This warning/contraindication was based on theoretical concerns, as well as concern that of the first 130 deaths reported in patients who took sildenafil, 16 of the patients also were taking nitrates.²

Parker and colleagues studied the safety of giving IV nitroglycerin to patients with coronary artery disease (CAD) who have taken sildenafil.³ The study was a randomized, placebo-controlled, crossover trial. Participants received sildenafil 100 mg or placebo, then received intravenous NTG. Patients who received sildenafil had a 4-6 mm Hg systolic BP drop compared with those who took the placebo. There was no difference in severe events between the sildenafil and placebo groups. The blood levels of nitroglycerin in this study were very likely much higher than the levels that occur with SL NTG.

A recent study by Holt et al. looked at overall cardiovascular outcomes with coprescribing nitrates and phosphodiesterase inhibitors.⁴ The study was a case crossover design, using a nationwide Danish health registry over the period of 2000-2018. In 2000, the rate of coprescribing of phosphodiesterase inhibitors in ischemic heart disease patients on nitrates was .9 per 100 persons/year and rose to 19.5 prescriptions per 100 persons/year in 2018. During this same time, no statistically significant association was found between the coprescription of nitrates with PDE5 inhibitors and the risk for MI, cardiac arrest, syncope, stroke, or an adverse drug event.
 

Does nitroglycerin response help determine cause of chest pain?

Nitroglycerin response has long been used as a clinical indicator on whether a patient’s chest pain is cardiac or not. Eric A. Shry, MD, and his colleagues looked at the usefulness of nitroglycerin response in the treatment of chest pain as a predictor of ischemic chest pain in an emergency department setting.⁵

The study was a retrospective review of 223 patients who presented to the emergency department over a 5-month period with ongoing chest pain. They looked at patients who had ongoing chest pain in the emergency department, received nitroglycerin, and did not receive any therapy other than aspirin within 10 minutes of receiving nitroglycerin. Response to the drug was compared with the final diagnosis of cardiac versus noncardiac chest pain.

Of the patients with a final determination of cardiac chest pain, 88% had a nitroglycerin response, whereas 92% of the patients with noncardiac chest pain had a nitroglycerin response (P = .50).

Deborah B. Diercks, MD, and her colleagues looked at improvement in chest pain scores in the emergency department in patients treated with nitroglycerin and whether it correlated with a cardiac etiology of chest pain.⁶ The study was a prospective, observational study of 664 patients in an urban tertiary care emergency department over a 16-month period. An 11-point numeric chest pain scale was assessed and recorded by research assistants before and 5 minutes after receiving nitroglycerin. The scale ranged from 0 (no pain) to 10 (worst pain imaginable).

A final diagnosis of a cardiac etiology for chest pain was found in 18% of the patients in the study. Of the patients who had cardiac-related chest pain, 20% had no reduction in pain with nitroglycerin, compared with 19% of the patients without cardiac-related chest pain.

A complete or significant reduction in chest pain occurred with nitroglycerin in 31% of patients with cardiac chest pain and 27% of the patients without cardiac chest pain (P = .76).

Nitroglycerin response does not appear to be helpful in distinguishing cardiac from noncardiac chest pain, but a study by His and colleagues offers an interesting twist.⁷

The authors of this research studied 118 patients looking to see if the side effect of headache with nitroglycerin was more common in patients who did not have CAD than in those who did. All the patients had a varying degree of relief of chest pain with NTG administration within 10 minutes. In patients with normal coronary arteries or minimal CAD, 73% had headache caused by NTG, whereas in patients with obstructive CAD, only 23% had headache after NTG use.
 

Take-home messages

• Short acting nitroglycerin may not be a contraindication for phosphodiesterase inhibitor use.
• More data are still needed.
• Nitroglycerin response does not help distinguish chest pain from CAD from noncardiac causes.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Schwartz BG, Kloner RA. Drug interactions with phosphodiesterase-5 inhibitors used for the treatment of erectile dysfunction or pulmonary hypertension. Circulation. 2010;122:88-95.

2. Kloner RA, Zusman RM. Cardiovascular effects of sildenafil citrate and recommendations for its use. Am J Cardiol. 1999 Sep 9;84(5B):11N-17N.

3. Parker JD et al. Safety of intravenous nitroglycerin after administration of sildenafil citrate to men with coronary artery disease: A double-blind, placebo-controlled, randomized, crossover trial. Crit Care Med. 2007;35:1863-8.

4. Holt A et al. Adverse events associated with coprescription of phosphodiesterase type inhibitors and oral organic nitrates in male patients with ischemic heart disease. Ann Intern Med. 2022 Jun;175(6):774-82.

5. Shry EA et al. Usefulness of the response to sublingual nitroglycerin as a predictor of ischemic chest pain in the emergency department. Am J Cardiol. 2002 Dec 1;90(11):1264-6.

6. Diercks DB et al. Changes in the numeric descriptive scale for pain after sublingual nitroglycerin do not predict cardiac etiology of chest pain. Ann Emerg Med. 2005 Jun;45(6):581-5.

7. His DH et al. Headache response to glyceryl trinitrate in patients with and without obstructive coronary artery disease. Heart 2005;91:1164-6.

A 67-year-old man asks about what he can do to prevent dementia. He reports his mother had dementia, and he wants to do everything he can to prevent it. Which of the following has evidence of benefit?

A) Thiamine

B) Vitamin E

C) Multivitamin (MV)

D) Keto diet

E) Red wine
 

FDA-approved therapies for dementia

To date the actual therapies for dementia have been disappointing. Donepezil, the most prescribed medication for the treatment of dementia has a number-needed-to treat (NNT) over 17, and causes frequent side effects. Aducanumab was recently approved by the Food and Drug Administration for the treatment of Alzheimer’s disease (AD), but controversy has arisen, as the clinical results were modest, and the price tag will be large – estimated at $30,000-$50,000/year.

Preventive options that may decrease the likelihood of dementia

Patients often ask the question stated above. Regarding how to respond to that question, choice C, MV, has some recent evidence of benefit. Baker and colleagues studied the effect of cocoa extract and multivitamins on cognitive function in the COSMOS-Mind trial.¹ A total of 2,262 people were enrolled, and over 90% completed baseline and at least one annual cognitive assessment. Cocoa extract had no impact on global cognition (confidence interval [CI], –.02-.08, P = .28), but MV supplementation did have a statistically significant impact on global cognition (CI, .02-.12, P less than .007).

Paauw_Doug_SEATTLE_2019_web.jpg

Vitamin E has been enthusiastically endorsed in the past as a treatment to prevent cognitive decline. The most recent Cochrane review on vitamin E concluded there was no evidence that the alpha-tocopherol form of vitamin E given to people with MCI prevents progression to dementia, or that it improves cognitive function in people with MCI or dementia due to AD.²

Exercise has long been a mainstay of our advice to patients as something they can do to help prevent dementia. Yu and colleagues did a meta-analysis of almost 400 randomized controlled trials and observational studies to grade the evidence on different interventions.³ They gave exercise a grade B for evidence of benefit.

A recent study addressed this issue, and I think it is helpful on quantifying how much exercise is needed. Del Pozo Cruz and colleagues did a prospective population-based cohort study of 78,000 adults aged 40-79, with an average of 6.9 years of follow up.⁴ The optimal step count was 9,826 steps (hazard ratio [HR], 0.49; 95% CI, 0.39-0.62) and the minimal step count for benefit was 3,826 steps (HR, 0.75; 95% CI, 0.67-0.83).
 

Modifiable factors

The other major modifiable factors to consider are problems with special senses. Both vision loss and hearing loss have been associated with cognitive impairment.

Shang and colleagues published a meta-analysis of 14 cohort studies addressing vision impairment and cognitive function involving more than 6 million individuals.⁵ They concluded that vision impairment is associated with an increased risk of both dementia and cognitive impairment in older adults.

Loughrey and colleagues performed a meta-analysis of 36 studies addressing hearing loss and cognitive decline.⁶ They reported that, among cross-sectional studies, a significant association was found for cognitive impairment (odds ratio [OR], 2.00; 95% CI, 1.39-2.89) and dementia (OR, 2.42; 95% CI, 1.24-4.72). A similar finding was present in prospective cohort studies with a significant association being found for cognitive impairment (OR, 1.22; 95% CI, 1.09-1.36) and dementia (OR, 1.28; 95% CI, 1.02-1.59).

A 25-year prospective, population-based study of patients with hearing loss revealed a difference in the rate of change in MMSE score over the 25-year follow-up between participants with hearing loss not using hearing aids matched with controls who didn’t have hearing loss. Those with untreated hearing loss had more cognitive decline than that of patients without hearing loss.⁷ The subjects with hearing loss using a hearing aid had no difference in cognitive decline from controls.
 

Pearl

Several simple and safe interventions may protect our patients from cognitive decline. These include taking a daily multivitamin, walking more than 4,000 steps a day, and optimizing vision and hearing.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Baker LD et al. Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial. Alzheimer’s Dement. 2022 Sep 14. doi: 10.1002/alz.12767.

2. Farina N et al. Vitamin E for Alzheimer’s dementia and mild cognitive impairment. Cochrane Database Syst Rev. 2017 Apr 18;4(4):CD002854. doi: 10.1002/14651858.CD002854.pub5.

3. Yu JT et al. Evidence-based prevention of Alzheimer’s disease: Systematic review and meta-analysis of 243 observational prospective studies and 153 randomised controlled trials. J Neurol Neurosurg Psychiatry. 2020 Nov;91(11):1201-9.

4. Del Pozo Cruz B et al. Association of daily step count and intensity with incident dementia in 78,430 adults living in the UK. JAMA Neurol. 2022 Oct 1;79(10):1059-63.

5. Shang X et al. The association between vision impairment and incidence of dementia and cognitive impairment: A systematic review and meta-analysis. Ophthalmology. 2021 Aug;128(8):1135-49.

6. Loughrey DG et al. Association of age-related hearing loss with cognitive function, cognitive impairment, and dementia: A systematic review and meta-analysis. JAMA Otolaryngol Head Neck Surg. 2018 Feb 1;144(2):115-26.

7. Amieva H et al. Self-reported hearing loss, hearing aids, and cognitive decline in elderly adults: A 25-year study. J Am Geriatr Soc. 2015 Oct;63(10):2099-104.

A 67-year-old man asks about what he can do to prevent dementia. He reports his mother had dementia, and he wants to do everything he can to prevent it. Which of the following has evidence of benefit?

A) Thiamine

B) Vitamin E

C) Multivitamin (MV)

D) Keto diet

E) Red wine
 

FDA-approved therapies for dementia

To date the actual therapies for dementia have been disappointing. Donepezil, the most prescribed medication for the treatment of dementia has a number-needed-to treat (NNT) over 17, and causes frequent side effects. Aducanumab was recently approved by the Food and Drug Administration for the treatment of Alzheimer’s disease (AD), but controversy has arisen, as the clinical results were modest, and the price tag will be large – estimated at $30,000-$50,000/year.

Preventive options that may decrease the likelihood of dementia

Patients often ask the question stated above. Regarding how to respond to that question, choice C, MV, has some recent evidence of benefit. Baker and colleagues studied the effect of cocoa extract and multivitamins on cognitive function in the COSMOS-Mind trial.¹ A total of 2,262 people were enrolled, and over 90% completed baseline and at least one annual cognitive assessment. Cocoa extract had no impact on global cognition (confidence interval [CI], –.02-.08, P = .28), but MV supplementation did have a statistically significant impact on global cognition (CI, .02-.12, P less than .007).

Paauw_Doug_SEATTLE_2019_web.jpg

Vitamin E has been enthusiastically endorsed in the past as a treatment to prevent cognitive decline. The most recent Cochrane review on vitamin E concluded there was no evidence that the alpha-tocopherol form of vitamin E given to people with MCI prevents progression to dementia, or that it improves cognitive function in people with MCI or dementia due to AD.²

Exercise has long been a mainstay of our advice to patients as something they can do to help prevent dementia. Yu and colleagues did a meta-analysis of almost 400 randomized controlled trials and observational studies to grade the evidence on different interventions.³ They gave exercise a grade B for evidence of benefit.

A recent study addressed this issue, and I think it is helpful on quantifying how much exercise is needed. Del Pozo Cruz and colleagues did a prospective population-based cohort study of 78,000 adults aged 40-79, with an average of 6.9 years of follow up.⁴ The optimal step count was 9,826 steps (hazard ratio [HR], 0.49; 95% CI, 0.39-0.62) and the minimal step count for benefit was 3,826 steps (HR, 0.75; 95% CI, 0.67-0.83).
 

Modifiable factors

The other major modifiable factors to consider are problems with special senses. Both vision loss and hearing loss have been associated with cognitive impairment.

Shang and colleagues published a meta-analysis of 14 cohort studies addressing vision impairment and cognitive function involving more than 6 million individuals.⁵ They concluded that vision impairment is associated with an increased risk of both dementia and cognitive impairment in older adults.

Loughrey and colleagues performed a meta-analysis of 36 studies addressing hearing loss and cognitive decline.⁶ They reported that, among cross-sectional studies, a significant association was found for cognitive impairment (odds ratio [OR], 2.00; 95% CI, 1.39-2.89) and dementia (OR, 2.42; 95% CI, 1.24-4.72). A similar finding was present in prospective cohort studies with a significant association being found for cognitive impairment (OR, 1.22; 95% CI, 1.09-1.36) and dementia (OR, 1.28; 95% CI, 1.02-1.59).

A 25-year prospective, population-based study of patients with hearing loss revealed a difference in the rate of change in MMSE score over the 25-year follow-up between participants with hearing loss not using hearing aids matched with controls who didn’t have hearing loss. Those with untreated hearing loss had more cognitive decline than that of patients without hearing loss.⁷ The subjects with hearing loss using a hearing aid had no difference in cognitive decline from controls.
 

Pearl

Several simple and safe interventions may protect our patients from cognitive decline. These include taking a daily multivitamin, walking more than 4,000 steps a day, and optimizing vision and hearing.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Baker LD et al. Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial. Alzheimer’s Dement. 2022 Sep 14. doi: 10.1002/alz.12767.

2. Farina N et al. Vitamin E for Alzheimer’s dementia and mild cognitive impairment. Cochrane Database Syst Rev. 2017 Apr 18;4(4):CD002854. doi: 10.1002/14651858.CD002854.pub5.

3. Yu JT et al. Evidence-based prevention of Alzheimer’s disease: Systematic review and meta-analysis of 243 observational prospective studies and 153 randomised controlled trials. J Neurol Neurosurg Psychiatry. 2020 Nov;91(11):1201-9.

4. Del Pozo Cruz B et al. Association of daily step count and intensity with incident dementia in 78,430 adults living in the UK. JAMA Neurol. 2022 Oct 1;79(10):1059-63.

5. Shang X et al. The association between vision impairment and incidence of dementia and cognitive impairment: A systematic review and meta-analysis. Ophthalmology. 2021 Aug;128(8):1135-49.

6. Loughrey DG et al. Association of age-related hearing loss with cognitive function, cognitive impairment, and dementia: A systematic review and meta-analysis. JAMA Otolaryngol Head Neck Surg. 2018 Feb 1;144(2):115-26.

7. Amieva H et al. Self-reported hearing loss, hearing aids, and cognitive decline in elderly adults: A 25-year study. J Am Geriatr Soc. 2015 Oct;63(10):2099-104.

A 67-year-old man asks about what he can do to prevent dementia. He reports his mother had dementia, and he wants to do everything he can to prevent it. Which of the following has evidence of benefit?

A) Thiamine

B) Vitamin E

C) Multivitamin (MV)

D) Keto diet

E) Red wine
 

FDA-approved therapies for dementia

To date the actual therapies for dementia have been disappointing. Donepezil, the most prescribed medication for the treatment of dementia has a number-needed-to treat (NNT) over 17, and causes frequent side effects. Aducanumab was recently approved by the Food and Drug Administration for the treatment of Alzheimer’s disease (AD), but controversy has arisen, as the clinical results were modest, and the price tag will be large – estimated at $30,000-$50,000/year.

Preventive options that may decrease the likelihood of dementia

Patients often ask the question stated above. Regarding how to respond to that question, choice C, MV, has some recent evidence of benefit. Baker and colleagues studied the effect of cocoa extract and multivitamins on cognitive function in the COSMOS-Mind trial.¹ A total of 2,262 people were enrolled, and over 90% completed baseline and at least one annual cognitive assessment. Cocoa extract had no impact on global cognition (confidence interval [CI], –.02-.08, P = .28), but MV supplementation did have a statistically significant impact on global cognition (CI, .02-.12, P less than .007).

Paauw_Doug_SEATTLE_2019_web.jpg

Vitamin E has been enthusiastically endorsed in the past as a treatment to prevent cognitive decline. The most recent Cochrane review on vitamin E concluded there was no evidence that the alpha-tocopherol form of vitamin E given to people with MCI prevents progression to dementia, or that it improves cognitive function in people with MCI or dementia due to AD.²

Exercise has long been a mainstay of our advice to patients as something they can do to help prevent dementia. Yu and colleagues did a meta-analysis of almost 400 randomized controlled trials and observational studies to grade the evidence on different interventions.³ They gave exercise a grade B for evidence of benefit.

A recent study addressed this issue, and I think it is helpful on quantifying how much exercise is needed. Del Pozo Cruz and colleagues did a prospective population-based cohort study of 78,000 adults aged 40-79, with an average of 6.9 years of follow up.⁴ The optimal step count was 9,826 steps (hazard ratio [HR], 0.49; 95% CI, 0.39-0.62) and the minimal step count for benefit was 3,826 steps (HR, 0.75; 95% CI, 0.67-0.83).
 

Modifiable factors

The other major modifiable factors to consider are problems with special senses. Both vision loss and hearing loss have been associated with cognitive impairment.

Shang and colleagues published a meta-analysis of 14 cohort studies addressing vision impairment and cognitive function involving more than 6 million individuals.⁵ They concluded that vision impairment is associated with an increased risk of both dementia and cognitive impairment in older adults.

Loughrey and colleagues performed a meta-analysis of 36 studies addressing hearing loss and cognitive decline.⁶ They reported that, among cross-sectional studies, a significant association was found for cognitive impairment (odds ratio [OR], 2.00; 95% CI, 1.39-2.89) and dementia (OR, 2.42; 95% CI, 1.24-4.72). A similar finding was present in prospective cohort studies with a significant association being found for cognitive impairment (OR, 1.22; 95% CI, 1.09-1.36) and dementia (OR, 1.28; 95% CI, 1.02-1.59).

A 25-year prospective, population-based study of patients with hearing loss revealed a difference in the rate of change in MMSE score over the 25-year follow-up between participants with hearing loss not using hearing aids matched with controls who didn’t have hearing loss. Those with untreated hearing loss had more cognitive decline than that of patients without hearing loss.⁷ The subjects with hearing loss using a hearing aid had no difference in cognitive decline from controls.
 

Pearl

Several simple and safe interventions may protect our patients from cognitive decline. These include taking a daily multivitamin, walking more than 4,000 steps a day, and optimizing vision and hearing.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Baker LD et al. Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial. Alzheimer’s Dement. 2022 Sep 14. doi: 10.1002/alz.12767.

2. Farina N et al. Vitamin E for Alzheimer’s dementia and mild cognitive impairment. Cochrane Database Syst Rev. 2017 Apr 18;4(4):CD002854. doi: 10.1002/14651858.CD002854.pub5.

3. Yu JT et al. Evidence-based prevention of Alzheimer’s disease: Systematic review and meta-analysis of 243 observational prospective studies and 153 randomised controlled trials. J Neurol Neurosurg Psychiatry. 2020 Nov;91(11):1201-9.

4. Del Pozo Cruz B et al. Association of daily step count and intensity with incident dementia in 78,430 adults living in the UK. JAMA Neurol. 2022 Oct 1;79(10):1059-63.

5. Shang X et al. The association between vision impairment and incidence of dementia and cognitive impairment: A systematic review and meta-analysis. Ophthalmology. 2021 Aug;128(8):1135-49.

6. Loughrey DG et al. Association of age-related hearing loss with cognitive function, cognitive impairment, and dementia: A systematic review and meta-analysis. JAMA Otolaryngol Head Neck Surg. 2018 Feb 1;144(2):115-26.

7. Amieva H et al. Self-reported hearing loss, hearing aids, and cognitive decline in elderly adults: A 25-year study. J Am Geriatr Soc. 2015 Oct;63(10):2099-104.

When I worked as a scribe prior to starting medical school, it was commonplace for patients to have fasting labs. I always felt terrible for the patients we saw late in the afternoon that had somehow fasted all day. For many other patients, there was the challenge of finding a time when they could return to have fasting labs drawn.

While in medical school, I have seen the transition of my preceptors’ recommendations, where it seems patients can now have nonfasting labs. However, I have still observed instances when patients need to have fasting labs. We can look at an example case to better understand when and why patients do and do not need to fast prior to having their lipids checked.

Ervin_Kendall_SEATTLE_web.jpg

Case

A 57-year-old woman presents for an annual wellness visit. She has been healthy this past year with no new concerns. Her blood pressure has been well controlled, and she continues on a statin for hyperlipidemia. She is due for annual labs. She ate breakfast this morning. Which of the following do you recommend?

A. Obtain lipids with her other blood work now.

B. Have her return tomorrow to obtain fasting labs.

In this situation, A is the correct answer. The patient is due for routine screening labs and there are no current indications that fasting labs are necessary.

Studies of fasting vs. nonfasting lipids

Sidhu and Naugler performed a cross-sectional analysis comparing lipid values at fasting intervals of 1 hour to 16 hours.¹ They found the mean total cholesterol and HDL cholesterol values differed by greater than 2%. For LDL cholesterol, the values differed by less than 10% and triglycerides values differed by less than 20%. With this information, the researchers concluded fasting for routine lipids is generally unnecessary.

Mora and colleagues performed a post hoc prospective follow-up of a randomized control

Paauw_Doug_SEATTLE_2019_web2.jpg

trial to assess if nonfasting lipid measurements could cause misclassification of cardiovascular risk assessment.² Based on 8,270 participants, coronary events associated with fasting vs. nonfasting lipid values were similar when adjusted hazard ratios were compared. They also found an agreement of 94.8% when classifying participants into ASCVD risk categories for fasting and nonfasting lipid values. These outcomes led them to support the use of nonfasting lipid labs for routine cardiovascular risk assessment.

Rahman and colleagues performed a systematic review and found the use of nonfasting lipid values can reliably determine statin management in most situations.³ Circumstances where fasting labs should be used are if patients have a genetic dyslipidemia, if patients have severe hypertriglyceridemia (greater than 500 mg/dL), and if patients have pancreatitis. Triglyceride values fluctuate the most between the fasting and nonfasting state as seen above from Sidhu and Naugler. This could impact triglyceride disorder management and the accuracy of LDL cholesterol estimation (calculated by the Friedewald equation: LDL cholesterol = total cholesterol – HDL cholesterol – triglycerides/5 in mg/dL).³

Benefits of nonfasting lipid labs

There are many benefits of nonfasting labs. For the patients, they do not have to come to their appointments hungry, we can reduce the risk of hypoglycemia for those with diabetes, and they do not have to come back at a later date if they ate something earlier in the day.

For the lab, we can improve efficiency and decrease early morning congestion when patients typically come in for fasting labs.

Lastly, for the provider, nonfasting labs can improve workflow and help decrease the number of patients lost to follow-up who were unable to complete fasting labs the same day as their appointment.
 

Summary

Patients do not need to fast prior to having lipid levels drawn for routine screening. Fasting labs should be considered for patients who have a genetic dyslipidemia or if there is concern for hypertriglyceridemia.

Per the ACC/AHA guidelines, nonfasting lipids can be used to assess ASCVD risk and to establish a baseline LDL cholesterol in adults 20 years and older. If a patient has nonfasting triglycerides greater than 400 mg/dL, repeat fasting lipids should be drawn to assess fasting triglycerides and to establish a baseline LDL cholesterol.⁴
 

Ms. Ervin is a fourth-year medical student at the University of Washington, Seattle. She has no conflicts to disclose. Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, and he serves as third-year medical student clerkship director at the university. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Rahman F et al. Curr Atheroscler Rep. 2018;20(3):14. Published 2018 Feb 17.

2. Mora S et al. JAMA Intern Med. 2019;179(7):898-905.

3. Sidhu D and Naugler C. Arch Intern Med. 2012;172(22):1707-10.

4. Hoover LE. Am Fam Physician. 2019 May 1;99(9):589-91.

When I worked as a scribe prior to starting medical school, it was commonplace for patients to have fasting labs. I always felt terrible for the patients we saw late in the afternoon that had somehow fasted all day. For many other patients, there was the challenge of finding a time when they could return to have fasting labs drawn.

While in medical school, I have seen the transition of my preceptors’ recommendations, where it seems patients can now have nonfasting labs. However, I have still observed instances when patients need to have fasting labs. We can look at an example case to better understand when and why patients do and do not need to fast prior to having their lipids checked.

Ervin_Kendall_SEATTLE_web.jpg

Case

A 57-year-old woman presents for an annual wellness visit. She has been healthy this past year with no new concerns. Her blood pressure has been well controlled, and she continues on a statin for hyperlipidemia. She is due for annual labs. She ate breakfast this morning. Which of the following do you recommend?

A. Obtain lipids with her other blood work now.

B. Have her return tomorrow to obtain fasting labs.

In this situation, A is the correct answer. The patient is due for routine screening labs and there are no current indications that fasting labs are necessary.

Studies of fasting vs. nonfasting lipids

Sidhu and Naugler performed a cross-sectional analysis comparing lipid values at fasting intervals of 1 hour to 16 hours.¹ They found the mean total cholesterol and HDL cholesterol values differed by greater than 2%. For LDL cholesterol, the values differed by less than 10% and triglycerides values differed by less than 20%. With this information, the researchers concluded fasting for routine lipids is generally unnecessary.

Mora and colleagues performed a post hoc prospective follow-up of a randomized control

Paauw_Doug_SEATTLE_2019_web2.jpg

trial to assess if nonfasting lipid measurements could cause misclassification of cardiovascular risk assessment.² Based on 8,270 participants, coronary events associated with fasting vs. nonfasting lipid values were similar when adjusted hazard ratios were compared. They also found an agreement of 94.8% when classifying participants into ASCVD risk categories for fasting and nonfasting lipid values. These outcomes led them to support the use of nonfasting lipid labs for routine cardiovascular risk assessment.

Rahman and colleagues performed a systematic review and found the use of nonfasting lipid values can reliably determine statin management in most situations.³ Circumstances where fasting labs should be used are if patients have a genetic dyslipidemia, if patients have severe hypertriglyceridemia (greater than 500 mg/dL), and if patients have pancreatitis. Triglyceride values fluctuate the most between the fasting and nonfasting state as seen above from Sidhu and Naugler. This could impact triglyceride disorder management and the accuracy of LDL cholesterol estimation (calculated by the Friedewald equation: LDL cholesterol = total cholesterol – HDL cholesterol – triglycerides/5 in mg/dL).³

Benefits of nonfasting lipid labs

There are many benefits of nonfasting labs. For the patients, they do not have to come to their appointments hungry, we can reduce the risk of hypoglycemia for those with diabetes, and they do not have to come back at a later date if they ate something earlier in the day.

For the lab, we can improve efficiency and decrease early morning congestion when patients typically come in for fasting labs.

Lastly, for the provider, nonfasting labs can improve workflow and help decrease the number of patients lost to follow-up who were unable to complete fasting labs the same day as their appointment.
 

Summary

Patients do not need to fast prior to having lipid levels drawn for routine screening. Fasting labs should be considered for patients who have a genetic dyslipidemia or if there is concern for hypertriglyceridemia.

Per the ACC/AHA guidelines, nonfasting lipids can be used to assess ASCVD risk and to establish a baseline LDL cholesterol in adults 20 years and older. If a patient has nonfasting triglycerides greater than 400 mg/dL, repeat fasting lipids should be drawn to assess fasting triglycerides and to establish a baseline LDL cholesterol.⁴
 

Ms. Ervin is a fourth-year medical student at the University of Washington, Seattle. She has no conflicts to disclose. Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, and he serves as third-year medical student clerkship director at the university. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Rahman F et al. Curr Atheroscler Rep. 2018;20(3):14. Published 2018 Feb 17.

2. Mora S et al. JAMA Intern Med. 2019;179(7):898-905.

3. Sidhu D and Naugler C. Arch Intern Med. 2012;172(22):1707-10.

4. Hoover LE. Am Fam Physician. 2019 May 1;99(9):589-91.

When I worked as a scribe prior to starting medical school, it was commonplace for patients to have fasting labs. I always felt terrible for the patients we saw late in the afternoon that had somehow fasted all day. For many other patients, there was the challenge of finding a time when they could return to have fasting labs drawn.

While in medical school, I have seen the transition of my preceptors’ recommendations, where it seems patients can now have nonfasting labs. However, I have still observed instances when patients need to have fasting labs. We can look at an example case to better understand when and why patients do and do not need to fast prior to having their lipids checked.

Ervin_Kendall_SEATTLE_web.jpg

Case

A 57-year-old woman presents for an annual wellness visit. She has been healthy this past year with no new concerns. Her blood pressure has been well controlled, and she continues on a statin for hyperlipidemia. She is due for annual labs. She ate breakfast this morning. Which of the following do you recommend?

A. Obtain lipids with her other blood work now.

B. Have her return tomorrow to obtain fasting labs.

In this situation, A is the correct answer. The patient is due for routine screening labs and there are no current indications that fasting labs are necessary.

Studies of fasting vs. nonfasting lipids

Sidhu and Naugler performed a cross-sectional analysis comparing lipid values at fasting intervals of 1 hour to 16 hours.¹ They found the mean total cholesterol and HDL cholesterol values differed by greater than 2%. For LDL cholesterol, the values differed by less than 10% and triglycerides values differed by less than 20%. With this information, the researchers concluded fasting for routine lipids is generally unnecessary.

Mora and colleagues performed a post hoc prospective follow-up of a randomized control

Paauw_Doug_SEATTLE_2019_web2.jpg

trial to assess if nonfasting lipid measurements could cause misclassification of cardiovascular risk assessment.² Based on 8,270 participants, coronary events associated with fasting vs. nonfasting lipid values were similar when adjusted hazard ratios were compared. They also found an agreement of 94.8% when classifying participants into ASCVD risk categories for fasting and nonfasting lipid values. These outcomes led them to support the use of nonfasting lipid labs for routine cardiovascular risk assessment.

Rahman and colleagues performed a systematic review and found the use of nonfasting lipid values can reliably determine statin management in most situations.³ Circumstances where fasting labs should be used are if patients have a genetic dyslipidemia, if patients have severe hypertriglyceridemia (greater than 500 mg/dL), and if patients have pancreatitis. Triglyceride values fluctuate the most between the fasting and nonfasting state as seen above from Sidhu and Naugler. This could impact triglyceride disorder management and the accuracy of LDL cholesterol estimation (calculated by the Friedewald equation: LDL cholesterol = total cholesterol – HDL cholesterol – triglycerides/5 in mg/dL).³

Benefits of nonfasting lipid labs

There are many benefits of nonfasting labs. For the patients, they do not have to come to their appointments hungry, we can reduce the risk of hypoglycemia for those with diabetes, and they do not have to come back at a later date if they ate something earlier in the day.

For the lab, we can improve efficiency and decrease early morning congestion when patients typically come in for fasting labs.

Lastly, for the provider, nonfasting labs can improve workflow and help decrease the number of patients lost to follow-up who were unable to complete fasting labs the same day as their appointment.
 

Summary

Patients do not need to fast prior to having lipid levels drawn for routine screening. Fasting labs should be considered for patients who have a genetic dyslipidemia or if there is concern for hypertriglyceridemia.

Per the ACC/AHA guidelines, nonfasting lipids can be used to assess ASCVD risk and to establish a baseline LDL cholesterol in adults 20 years and older. If a patient has nonfasting triglycerides greater than 400 mg/dL, repeat fasting lipids should be drawn to assess fasting triglycerides and to establish a baseline LDL cholesterol.⁴
 

Ms. Ervin is a fourth-year medical student at the University of Washington, Seattle. She has no conflicts to disclose. Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, and he serves as third-year medical student clerkship director at the university. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Rahman F et al. Curr Atheroscler Rep. 2018;20(3):14. Published 2018 Feb 17.

2. Mora S et al. JAMA Intern Med. 2019;179(7):898-905.

3. Sidhu D and Naugler C. Arch Intern Med. 2012;172(22):1707-10.

4. Hoover LE. Am Fam Physician. 2019 May 1;99(9):589-91.

As I prepared to write my monthly column, I came across the statistic that 23% of physicians and 40% of nurses plan to leave their practices in the next 2 years.¹

Interestingly, the group that seems to be least impacted by this was health care administrators (with 12% of them planning on leaving their jobs).

I couldn’t stop thinking about these percentages.

Paauw_Doug_SEATTLE_2019_web.jpg

I am reminded every day of the commitment and excellence of my colleagues in the health care field, and I do not want to lose them. I am hoping the following information and my thoughts on this topic will be helpful for those thinking about leaving health care.
 

Surgeon general’s burnout report

The surgeon general recently released a report on addressing health care worker burnout.² It includes several very interesting and appropriate observations. I will summarize the most important ones here:

1. Our health depends on the well-being of our health workforce.

2. Direct harm to health care workers can lead to anxiety, depression, insomnia, and interpersonal and relationship struggles.

3. Health care workers experience exhaustion from providing overwhelming care and empathy.

4. Health care workers spend less time with patients and too much time with EHRs.

5. There are health workforce shortages.

The report is comprehensive, and everything in it is correct. The real issue is how does it go from being a report to true actionable items that we as health care professionals benefit from? I think in regards to exhaustion from overwhelming care responsibilities, and empathy fatigue, we need better boundaries.

Those who go into medicine, and especially those who go into primary care, always put the patients’ needs first. When operating in a broken system, it stays broken when individuals cover for the deficiencies in the system. Adding four extra patients every day because there is no one to refer them to with availability is injurious to the health care provider, and those providers who accept these additional patients will eventually be part of the 23% who want to leave their jobs. It feels awful to say no, but until the system stops accommodating there will not be substantial change.
 

The empathy drain

One of the unreported stresses of open access for patients through EHR communications is the empathy drain on physicians. When I see a patient in clinic with chronic symptoms or issues, I spend important time making sure we have a plan and an agreed upon time frame.

With the EHR, patients frequently send multiple messages for the same symptoms between visits. It is okay to redirect the patient and share that these issues will be discussed at length at appointments. My reasoning on this is that I think it is better for me to better care for myself and stay as the doctor for my patients, than always say yes to limitless needs and soon be looking for the off ramp.

The following statistic in the surgeon general’s report really hit home. For every hour of direct patient care, physicians currently spend 2 hours on the EHR system. Most practices allow 10%-20% of time for catch up, where with statistics like this it should be 50%. This concept is fully lost on administrators, or ignored.

It is only when we refuse to continue to accept and follow a broken system that it will change. A minority of internal medicine and family doctors (4.5% in 2018) practice in direct primary care models, where these issues are addressed. Unfortunately, this model as it is currently available is not an option for lower income patients.

A major theme in the surgeon general’s report was that administrative burdens need to be reduced by 75% by 2025. When I look at the report, I see the suggestions, I just don’t see how it will be achieved. Despite almost all clinics moving to the EHR, paperwork in the form of faxes and forms has increased.

A sweeping reform would be needed to eliminate daily faxes from PT offices, visiting nurse services, prior authorization, patients reminders from insurance companies, and disability forms from patients. I am glad that there is acknowledgment of the problem, but this change will take more than 3 years.
 

Takeaways

So what do we do?

Be good to yourself, and your colleagues. The pandemic has isolated us, which accelerates burnout.

Reach out to people you care about.

We are all feeling this. Set boundaries that allow you to care for yourself, and accept that you are doing your best, even if you can’t meet the needs of all your patients all the time.
 

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Sinsky CA et al. Covid-related stress and work intentions in a sample of US health care workers. Mayo Clin Proc Innov Qual Outcomes. 2021 Dec;5(6):1165-73.

2. Addressing health worker burnout. The U.S. Surgeon General’s advisory on building a thriving health workforce.

As I prepared to write my monthly column, I came across the statistic that 23% of physicians and 40% of nurses plan to leave their practices in the next 2 years.¹

Interestingly, the group that seems to be least impacted by this was health care administrators (with 12% of them planning on leaving their jobs).

I couldn’t stop thinking about these percentages.

Paauw_Doug_SEATTLE_2019_web.jpg

I am reminded every day of the commitment and excellence of my colleagues in the health care field, and I do not want to lose them. I am hoping the following information and my thoughts on this topic will be helpful for those thinking about leaving health care.
 

Surgeon general’s burnout report

The surgeon general recently released a report on addressing health care worker burnout.² It includes several very interesting and appropriate observations. I will summarize the most important ones here:

1. Our health depends on the well-being of our health workforce.

2. Direct harm to health care workers can lead to anxiety, depression, insomnia, and interpersonal and relationship struggles.

3. Health care workers experience exhaustion from providing overwhelming care and empathy.

4. Health care workers spend less time with patients and too much time with EHRs.

5. There are health workforce shortages.

The report is comprehensive, and everything in it is correct. The real issue is how does it go from being a report to true actionable items that we as health care professionals benefit from? I think in regards to exhaustion from overwhelming care responsibilities, and empathy fatigue, we need better boundaries.

Those who go into medicine, and especially those who go into primary care, always put the patients’ needs first. When operating in a broken system, it stays broken when individuals cover for the deficiencies in the system. Adding four extra patients every day because there is no one to refer them to with availability is injurious to the health care provider, and those providers who accept these additional patients will eventually be part of the 23% who want to leave their jobs. It feels awful to say no, but until the system stops accommodating there will not be substantial change.
 

The empathy drain

One of the unreported stresses of open access for patients through EHR communications is the empathy drain on physicians. When I see a patient in clinic with chronic symptoms or issues, I spend important time making sure we have a plan and an agreed upon time frame.

With the EHR, patients frequently send multiple messages for the same symptoms between visits. It is okay to redirect the patient and share that these issues will be discussed at length at appointments. My reasoning on this is that I think it is better for me to better care for myself and stay as the doctor for my patients, than always say yes to limitless needs and soon be looking for the off ramp.

The following statistic in the surgeon general’s report really hit home. For every hour of direct patient care, physicians currently spend 2 hours on the EHR system. Most practices allow 10%-20% of time for catch up, where with statistics like this it should be 50%. This concept is fully lost on administrators, or ignored.

It is only when we refuse to continue to accept and follow a broken system that it will change. A minority of internal medicine and family doctors (4.5% in 2018) practice in direct primary care models, where these issues are addressed. Unfortunately, this model as it is currently available is not an option for lower income patients.

A major theme in the surgeon general’s report was that administrative burdens need to be reduced by 75% by 2025. When I look at the report, I see the suggestions, I just don’t see how it will be achieved. Despite almost all clinics moving to the EHR, paperwork in the form of faxes and forms has increased.

A sweeping reform would be needed to eliminate daily faxes from PT offices, visiting nurse services, prior authorization, patients reminders from insurance companies, and disability forms from patients. I am glad that there is acknowledgment of the problem, but this change will take more than 3 years.
 

Takeaways

So what do we do?

Be good to yourself, and your colleagues. The pandemic has isolated us, which accelerates burnout.

Reach out to people you care about.

We are all feeling this. Set boundaries that allow you to care for yourself, and accept that you are doing your best, even if you can’t meet the needs of all your patients all the time.
 

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Sinsky CA et al. Covid-related stress and work intentions in a sample of US health care workers. Mayo Clin Proc Innov Qual Outcomes. 2021 Dec;5(6):1165-73.

2. Addressing health worker burnout. The U.S. Surgeon General’s advisory on building a thriving health workforce.

As I prepared to write my monthly column, I came across the statistic that 23% of physicians and 40% of nurses plan to leave their practices in the next 2 years.¹

Interestingly, the group that seems to be least impacted by this was health care administrators (with 12% of them planning on leaving their jobs).

I couldn’t stop thinking about these percentages.

Paauw_Doug_SEATTLE_2019_web.jpg

I am reminded every day of the commitment and excellence of my colleagues in the health care field, and I do not want to lose them. I am hoping the following information and my thoughts on this topic will be helpful for those thinking about leaving health care.
 

Surgeon general’s burnout report

The surgeon general recently released a report on addressing health care worker burnout.² It includes several very interesting and appropriate observations. I will summarize the most important ones here:

1. Our health depends on the well-being of our health workforce.

2. Direct harm to health care workers can lead to anxiety, depression, insomnia, and interpersonal and relationship struggles.

3. Health care workers experience exhaustion from providing overwhelming care and empathy.

4. Health care workers spend less time with patients and too much time with EHRs.

5. There are health workforce shortages.

The report is comprehensive, and everything in it is correct. The real issue is how does it go from being a report to true actionable items that we as health care professionals benefit from? I think in regards to exhaustion from overwhelming care responsibilities, and empathy fatigue, we need better boundaries.

Those who go into medicine, and especially those who go into primary care, always put the patients’ needs first. When operating in a broken system, it stays broken when individuals cover for the deficiencies in the system. Adding four extra patients every day because there is no one to refer them to with availability is injurious to the health care provider, and those providers who accept these additional patients will eventually be part of the 23% who want to leave their jobs. It feels awful to say no, but until the system stops accommodating there will not be substantial change.
 

The empathy drain

One of the unreported stresses of open access for patients through EHR communications is the empathy drain on physicians. When I see a patient in clinic with chronic symptoms or issues, I spend important time making sure we have a plan and an agreed upon time frame.

With the EHR, patients frequently send multiple messages for the same symptoms between visits. It is okay to redirect the patient and share that these issues will be discussed at length at appointments. My reasoning on this is that I think it is better for me to better care for myself and stay as the doctor for my patients, than always say yes to limitless needs and soon be looking for the off ramp.

The following statistic in the surgeon general’s report really hit home. For every hour of direct patient care, physicians currently spend 2 hours on the EHR system. Most practices allow 10%-20% of time for catch up, where with statistics like this it should be 50%. This concept is fully lost on administrators, or ignored.

It is only when we refuse to continue to accept and follow a broken system that it will change. A minority of internal medicine and family doctors (4.5% in 2018) practice in direct primary care models, where these issues are addressed. Unfortunately, this model as it is currently available is not an option for lower income patients.

A major theme in the surgeon general’s report was that administrative burdens need to be reduced by 75% by 2025. When I look at the report, I see the suggestions, I just don’t see how it will be achieved. Despite almost all clinics moving to the EHR, paperwork in the form of faxes and forms has increased.

A sweeping reform would be needed to eliminate daily faxes from PT offices, visiting nurse services, prior authorization, patients reminders from insurance companies, and disability forms from patients. I am glad that there is acknowledgment of the problem, but this change will take more than 3 years.
 

Takeaways

So what do we do?

Be good to yourself, and your colleagues. The pandemic has isolated us, which accelerates burnout.

Reach out to people you care about.

We are all feeling this. Set boundaries that allow you to care for yourself, and accept that you are doing your best, even if you can’t meet the needs of all your patients all the time.
 

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Sinsky CA et al. Covid-related stress and work intentions in a sample of US health care workers. Mayo Clin Proc Innov Qual Outcomes. 2021 Dec;5(6):1165-73.

2. Addressing health worker burnout. The U.S. Surgeon General’s advisory on building a thriving health workforce.

A 32-year-old woman had sex with a man she met while on vacation 6 weeks ago. She was intoxicated at the time and does not know much about the person. She recalls having engaged in vaginal intercourse without a condom. She does not have any symptoms.

She previously received baseline lab testing per Centers for Disease Control and Prevention guidelines 2 years ago with a negative HIV test and negative hepatitis C test. She asks for testing for STIs. What would you recommend?

Paauw_Doug2_web.jpg

A. HIV, hepatitis C, gonorrhea, chlamydia, and human papillomavirus

B. HIV, hepatitis C, gonorrhea, chlamydia, and herpes simplex virus

C. HIV, hepatitis C, gonorrhea, and chlamydia

D. HIV, gonorrhea, and chlamydia

E. Gonorrhea and chlamydia

HIV risk estimate

The most practical answer is E, check for gonorrhea and chlamydia. Many protocols in place for evaluating people for STIs will test for hepatitis C as well as HIV with single exposures. In this column, we will look at the lack of evidence of heterosexual sexual transmission of hepatitis C.

In regards to HIV risk, the estimated risk of transmission male to female from an HIV-infected individual is 0.08% per sexual encounter.¹ The prevalence in the United States – where HIV occurs in about 0.5% of the adult population – was used to estimate the risk of a person with unknown HIV status acquiring HIV. The calculated risk from one sexual encounter would be 0.0004 (1 in 250,000).
 

Studies of hepatitis C transmission

Tahan and colleagues did a prospective study of 600 heterosexual couples where one partner had hepatitis C and the other didn’t. Over a mean of 3 years of follow-up, none of the seronegative spouses developed hepatitis C.²

Terrault and colleagues completed a cross-sectional study of hepatitis C virus (HCV)–positive individuals and their monogamous heterosexual partners to evaluate risk of sexual transmission of HCV.³ Based on 8,377 person-years of follow-up, the estimated maximum transmission rate was 0.07%/year, which was about 1/190,000 sexual contacts. No specific sexual practices were associated with transmission. The authors of this study concurred with CDC recommendations that persons with HCV infection in long-term monogamous relationships need not change their sexual practices.⁴

Vandelli and colleagues followed 776 heterosexual partners of HCV-infected individuals over 10 years.⁵ None of the couples reported condom use. Over the follow up period, three HCV infections occurred, but based on discordance of the typing of viral isolates, sexual transmission was excluded.

Jin and colleagues completed a systematic review of studies looking at possible sexual transmission of HCV in gay and bisexual men.⁶ HIV-positive men had a HCV incidence of 6.4 per 1,000 person-years, compared with 0.4 per 1000 person-years in HIV-negative men. The authors discussed several possible causes for increased transmission risk in HIV-infected individuals including coexisting STIs and higher HCV viral load in semen of HIV-infected individuals, as well as lower immunity.
 

Summary

In hepatitis C–discordant heterosexual couples, hepatitis C does not appear to be sexually transmitted.

The risk of sexual transmission of hepatitis C to non–HIV-infected individuals appears to be exceedingly low.

Many thanks to Hunter Handsfield, MD, for suggesting this topic and sharing supporting articles.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

1. Boily MC et al. Lancet Infect Dis. 2009 Feb;9(2):118-29.

2. Tahan V et al. Am J Gastroenterol. 2005;100:821-4.

3. Terrault NA et al. Hepatology. 2013;57:881-9

4. Centers for Disease Control and Prevention. MMWR Recomm Rep. 1998;47:1-38.

5. Vandelli C et al. Am J Gastroenterol. 2004;99:855-9.

6. Jin F et al. Sexual Health.2017;14:28-41.

A 32-year-old woman had sex with a man she met while on vacation 6 weeks ago. She was intoxicated at the time and does not know much about the person. She recalls having engaged in vaginal intercourse without a condom. She does not have any symptoms.

She previously received baseline lab testing per Centers for Disease Control and Prevention guidelines 2 years ago with a negative HIV test and negative hepatitis C test. She asks for testing for STIs. What would you recommend?

Paauw_Doug2_web.jpg

A. HIV, hepatitis C, gonorrhea, chlamydia, and human papillomavirus

B. HIV, hepatitis C, gonorrhea, chlamydia, and herpes simplex virus

C. HIV, hepatitis C, gonorrhea, and chlamydia

D. HIV, gonorrhea, and chlamydia

E. Gonorrhea and chlamydia

HIV risk estimate

The most practical answer is E, check for gonorrhea and chlamydia. Many protocols in place for evaluating people for STIs will test for hepatitis C as well as HIV with single exposures. In this column, we will look at the lack of evidence of heterosexual sexual transmission of hepatitis C.

In regards to HIV risk, the estimated risk of transmission male to female from an HIV-infected individual is 0.08% per sexual encounter.¹ The prevalence in the United States – where HIV occurs in about 0.5% of the adult population – was used to estimate the risk of a person with unknown HIV status acquiring HIV. The calculated risk from one sexual encounter would be 0.0004 (1 in 250,000).
 

Studies of hepatitis C transmission

Tahan and colleagues did a prospective study of 600 heterosexual couples where one partner had hepatitis C and the other didn’t. Over a mean of 3 years of follow-up, none of the seronegative spouses developed hepatitis C.²

Terrault and colleagues completed a cross-sectional study of hepatitis C virus (HCV)–positive individuals and their monogamous heterosexual partners to evaluate risk of sexual transmission of HCV.³ Based on 8,377 person-years of follow-up, the estimated maximum transmission rate was 0.07%/year, which was about 1/190,000 sexual contacts. No specific sexual practices were associated with transmission. The authors of this study concurred with CDC recommendations that persons with HCV infection in long-term monogamous relationships need not change their sexual practices.⁴

Vandelli and colleagues followed 776 heterosexual partners of HCV-infected individuals over 10 years.⁵ None of the couples reported condom use. Over the follow up period, three HCV infections occurred, but based on discordance of the typing of viral isolates, sexual transmission was excluded.

Jin and colleagues completed a systematic review of studies looking at possible sexual transmission of HCV in gay and bisexual men.⁶ HIV-positive men had a HCV incidence of 6.4 per 1,000 person-years, compared with 0.4 per 1000 person-years in HIV-negative men. The authors discussed several possible causes for increased transmission risk in HIV-infected individuals including coexisting STIs and higher HCV viral load in semen of HIV-infected individuals, as well as lower immunity.
 

Summary

In hepatitis C–discordant heterosexual couples, hepatitis C does not appear to be sexually transmitted.

The risk of sexual transmission of hepatitis C to non–HIV-infected individuals appears to be exceedingly low.

Many thanks to Hunter Handsfield, MD, for suggesting this topic and sharing supporting articles.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

1. Boily MC et al. Lancet Infect Dis. 2009 Feb;9(2):118-29.

2. Tahan V et al. Am J Gastroenterol. 2005;100:821-4.

3. Terrault NA et al. Hepatology. 2013;57:881-9

4. Centers for Disease Control and Prevention. MMWR Recomm Rep. 1998;47:1-38.

5. Vandelli C et al. Am J Gastroenterol. 2004;99:855-9.

6. Jin F et al. Sexual Health.2017;14:28-41.

A 32-year-old woman had sex with a man she met while on vacation 6 weeks ago. She was intoxicated at the time and does not know much about the person. She recalls having engaged in vaginal intercourse without a condom. She does not have any symptoms.

She previously received baseline lab testing per Centers for Disease Control and Prevention guidelines 2 years ago with a negative HIV test and negative hepatitis C test. She asks for testing for STIs. What would you recommend?

Paauw_Doug2_web.jpg

A. HIV, hepatitis C, gonorrhea, chlamydia, and human papillomavirus

B. HIV, hepatitis C, gonorrhea, chlamydia, and herpes simplex virus

C. HIV, hepatitis C, gonorrhea, and chlamydia

D. HIV, gonorrhea, and chlamydia

E. Gonorrhea and chlamydia

HIV risk estimate

The most practical answer is E, check for gonorrhea and chlamydia. Many protocols in place for evaluating people for STIs will test for hepatitis C as well as HIV with single exposures. In this column, we will look at the lack of evidence of heterosexual sexual transmission of hepatitis C.

In regards to HIV risk, the estimated risk of transmission male to female from an HIV-infected individual is 0.08% per sexual encounter.¹ The prevalence in the United States – where HIV occurs in about 0.5% of the adult population – was used to estimate the risk of a person with unknown HIV status acquiring HIV. The calculated risk from one sexual encounter would be 0.0004 (1 in 250,000).
 

Studies of hepatitis C transmission

Tahan and colleagues did a prospective study of 600 heterosexual couples where one partner had hepatitis C and the other didn’t. Over a mean of 3 years of follow-up, none of the seronegative spouses developed hepatitis C.²

Terrault and colleagues completed a cross-sectional study of hepatitis C virus (HCV)–positive individuals and their monogamous heterosexual partners to evaluate risk of sexual transmission of HCV.³ Based on 8,377 person-years of follow-up, the estimated maximum transmission rate was 0.07%/year, which was about 1/190,000 sexual contacts. No specific sexual practices were associated with transmission. The authors of this study concurred with CDC recommendations that persons with HCV infection in long-term monogamous relationships need not change their sexual practices.⁴

Vandelli and colleagues followed 776 heterosexual partners of HCV-infected individuals over 10 years.⁵ None of the couples reported condom use. Over the follow up period, three HCV infections occurred, but based on discordance of the typing of viral isolates, sexual transmission was excluded.

Jin and colleagues completed a systematic review of studies looking at possible sexual transmission of HCV in gay and bisexual men.⁶ HIV-positive men had a HCV incidence of 6.4 per 1,000 person-years, compared with 0.4 per 1000 person-years in HIV-negative men. The authors discussed several possible causes for increased transmission risk in HIV-infected individuals including coexisting STIs and higher HCV viral load in semen of HIV-infected individuals, as well as lower immunity.
 

Summary

In hepatitis C–discordant heterosexual couples, hepatitis C does not appear to be sexually transmitted.

The risk of sexual transmission of hepatitis C to non–HIV-infected individuals appears to be exceedingly low.

Many thanks to Hunter Handsfield, MD, for suggesting this topic and sharing supporting articles.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

1. Boily MC et al. Lancet Infect Dis. 2009 Feb;9(2):118-29.

2. Tahan V et al. Am J Gastroenterol. 2005;100:821-4.

3. Terrault NA et al. Hepatology. 2013;57:881-9

4. Centers for Disease Control and Prevention. MMWR Recomm Rep. 1998;47:1-38.

5. Vandelli C et al. Am J Gastroenterol. 2004;99:855-9.

6. Jin F et al. Sexual Health.2017;14:28-41.

We all feel pressure from not having enough time to care for our patients the way we want to.

Below I describe related challenges I frequently face during office visits. I also share strategies for making these visits go more smoothly and be more productive.

Paauw_Doug2_web.jpg

Organ recital

Some of our patients need to share an update on all their symptoms each visit, old and new, including those that are minor or possibly concerning. I have learned over the years that, for many patients, this allows them to release the worry about symptoms.

Some symptoms are so distressing and severe that symptomatic treatment is needed, but most aren’t.

I am very honest with patients when I have no idea what is causing their symptoms. I tell them, we will watch for other clues to see if the symptom needs a workup.

One thing I don’t do, and I strongly recommend against, is doing a review of systems. This leads a patient to believe you are concerned about exploring each possible symptom, ones that they didn’t even bring up! The yield is very low, and the time commitment is great.
 

The angry patient

Imagine a scenario when you are running 15 minutes behind and, when you step into the room, your patient is angry. You are already behind, and helping the patient navigate their anger will be part of your clinic visit.

In these situations, I always address the patient’s anger immediately. Problems with getting appointments with specialists, delays in diagnostic tests, or a broken entry to the parking garage have all been sources of my patients’ frustrations.

When we have limited time, using much of the clinic visit to process frustration leads to empty clinic visits. I listen and work to empathize with the patient, often agreeing that there are so many messed up aspects of the health care system. I do not like to use the corporate “I am sad you feel that way” response, because I feel it is not helpful. Instead, I tell them how much I want to help them today in any way I can at this visit.
 

The Internet sleuth

When our patients have new symptoms, some of them will go to the Internet to try to self-diagnose. Sometimes they make a correct diagnosis, but other times consider scary diagnoses we would not consider based on their symptoms and risk factors.

In these scenarios, I always ask the patient why they think their diagnosis is accurate. Their response to this question gives me insight into where their beliefs come from and helps me understand what information I need to provide.

McMullan said physicians can be defensive, collaborative, and informative when they interact with patients about information they have found on the Internet. In the first model, the physician is authoritative. The second involves working with the patient and obtaining and analyzing information. In the third model, the physician provides reputable internet sites to patients for obtaining information.
 

‘Oh, by the way’

Patients frequently bring up sensitive topics or complicated requests after the visit has wrapped up. Topics such as insomnia, erectile dysfunction, and anxiety are often brought up with the assumption that a quick prescription is the answer. For many years, I would add time to the appointment and try to address these issues as quickly as I could. But I invariably did a poor job at helping with these problems. Now, I offer to see the patient back soon to spend an entire visit discussing the newly brought up concern. I tell them that the problem is too important to not have my full attention and focus.

Pearls

• Empathetically listen to descriptions of symptoms, but don’t focus on fixing them.
• Empathize with the angry patient, and move on to taking care of their medical problems.
• Avoid the urge to address newly raised problems at the end of the visit.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose.

We all feel pressure from not having enough time to care for our patients the way we want to.

Below I describe related challenges I frequently face during office visits. I also share strategies for making these visits go more smoothly and be more productive.

Paauw_Doug2_web.jpg

Organ recital

Some of our patients need to share an update on all their symptoms each visit, old and new, including those that are minor or possibly concerning. I have learned over the years that, for many patients, this allows them to release the worry about symptoms.

Some symptoms are so distressing and severe that symptomatic treatment is needed, but most aren’t.

I am very honest with patients when I have no idea what is causing their symptoms. I tell them, we will watch for other clues to see if the symptom needs a workup.

One thing I don’t do, and I strongly recommend against, is doing a review of systems. This leads a patient to believe you are concerned about exploring each possible symptom, ones that they didn’t even bring up! The yield is very low, and the time commitment is great.
 

The angry patient

Imagine a scenario when you are running 15 minutes behind and, when you step into the room, your patient is angry. You are already behind, and helping the patient navigate their anger will be part of your clinic visit.

In these situations, I always address the patient’s anger immediately. Problems with getting appointments with specialists, delays in diagnostic tests, or a broken entry to the parking garage have all been sources of my patients’ frustrations.

When we have limited time, using much of the clinic visit to process frustration leads to empty clinic visits. I listen and work to empathize with the patient, often agreeing that there are so many messed up aspects of the health care system. I do not like to use the corporate “I am sad you feel that way” response, because I feel it is not helpful. Instead, I tell them how much I want to help them today in any way I can at this visit.
 

The Internet sleuth

When our patients have new symptoms, some of them will go to the Internet to try to self-diagnose. Sometimes they make a correct diagnosis, but other times consider scary diagnoses we would not consider based on their symptoms and risk factors.

In these scenarios, I always ask the patient why they think their diagnosis is accurate. Their response to this question gives me insight into where their beliefs come from and helps me understand what information I need to provide.

McMullan said physicians can be defensive, collaborative, and informative when they interact with patients about information they have found on the Internet. In the first model, the physician is authoritative. The second involves working with the patient and obtaining and analyzing information. In the third model, the physician provides reputable internet sites to patients for obtaining information.
 

‘Oh, by the way’

Patients frequently bring up sensitive topics or complicated requests after the visit has wrapped up. Topics such as insomnia, erectile dysfunction, and anxiety are often brought up with the assumption that a quick prescription is the answer. For many years, I would add time to the appointment and try to address these issues as quickly as I could. But I invariably did a poor job at helping with these problems. Now, I offer to see the patient back soon to spend an entire visit discussing the newly brought up concern. I tell them that the problem is too important to not have my full attention and focus.

Pearls

• Empathetically listen to descriptions of symptoms, but don’t focus on fixing them.
• Empathize with the angry patient, and move on to taking care of their medical problems.
• Avoid the urge to address newly raised problems at the end of the visit.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose.

We all feel pressure from not having enough time to care for our patients the way we want to.

Below I describe related challenges I frequently face during office visits. I also share strategies for making these visits go more smoothly and be more productive.

Paauw_Doug2_web.jpg

Organ recital

Some of our patients need to share an update on all their symptoms each visit, old and new, including those that are minor or possibly concerning. I have learned over the years that, for many patients, this allows them to release the worry about symptoms.

Some symptoms are so distressing and severe that symptomatic treatment is needed, but most aren’t.

I am very honest with patients when I have no idea what is causing their symptoms. I tell them, we will watch for other clues to see if the symptom needs a workup.

One thing I don’t do, and I strongly recommend against, is doing a review of systems. This leads a patient to believe you are concerned about exploring each possible symptom, ones that they didn’t even bring up! The yield is very low, and the time commitment is great.
 

The angry patient

Imagine a scenario when you are running 15 minutes behind and, when you step into the room, your patient is angry. You are already behind, and helping the patient navigate their anger will be part of your clinic visit.

In these situations, I always address the patient’s anger immediately. Problems with getting appointments with specialists, delays in diagnostic tests, or a broken entry to the parking garage have all been sources of my patients’ frustrations.

When we have limited time, using much of the clinic visit to process frustration leads to empty clinic visits. I listen and work to empathize with the patient, often agreeing that there are so many messed up aspects of the health care system. I do not like to use the corporate “I am sad you feel that way” response, because I feel it is not helpful. Instead, I tell them how much I want to help them today in any way I can at this visit.
 

The Internet sleuth

When our patients have new symptoms, some of them will go to the Internet to try to self-diagnose. Sometimes they make a correct diagnosis, but other times consider scary diagnoses we would not consider based on their symptoms and risk factors.

In these scenarios, I always ask the patient why they think their diagnosis is accurate. Their response to this question gives me insight into where their beliefs come from and helps me understand what information I need to provide.

McMullan said physicians can be defensive, collaborative, and informative when they interact with patients about information they have found on the Internet. In the first model, the physician is authoritative. The second involves working with the patient and obtaining and analyzing information. In the third model, the physician provides reputable internet sites to patients for obtaining information.
 

‘Oh, by the way’

Patients frequently bring up sensitive topics or complicated requests after the visit has wrapped up. Topics such as insomnia, erectile dysfunction, and anxiety are often brought up with the assumption that a quick prescription is the answer. For many years, I would add time to the appointment and try to address these issues as quickly as I could. But I invariably did a poor job at helping with these problems. Now, I offer to see the patient back soon to spend an entire visit discussing the newly brought up concern. I tell them that the problem is too important to not have my full attention and focus.

Pearls

• Empathetically listen to descriptions of symptoms, but don’t focus on fixing them.
• Empathize with the angry patient, and move on to taking care of their medical problems.
• Avoid the urge to address newly raised problems at the end of the visit.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose.