Clinician Reviews

Is lifestyle counseling needed with the more effective second-generation nutrient-stimulated, hormone-based medications like semaglutide and tirzepatide?

If so, how intensive does the counseling need to be, and what components should be emphasized?

These are the clinical practice questions at the top of mind for healthcare professionals and researchers who provide care to patients who have overweight and/or obesity.

This is what we know. Lifestyle management is considered foundational in the care of patients with obesity.

Because obesity is fundamentally a disease of energy dysregulation, counseling has traditionally focused on dietary caloric reduction, increased physical activity, and strategies to adapt new cognitive and lifestyle behaviors.

On the basis of trial results from the Diabetes Prevention Program and the Look AHEAD studies, provision of intensive behavioral therapy (IBT) is recommended for treatment of obesity by the Centers for Medicare & Medicaid Services and by the US Preventive Services Task Force (Moyer VA; US Preventive Services Task Force).

IBT is commonly defined as consisting of 12-26 comprehensive and multicomponent sessions over the course of a year.

Reaffirming the primacy of lifestyle management, all antiobesity medications are approved by the US Food and Drug Administration as an adjunct to a reduced-calorie diet and increased physical activity.

The beneficial effect of combining IBT with earlier-generation medications like naltrexone/bupropion or liraglutide demonstrated that more participants in the trials achieved ≥ 10% weight loss with IBT compared with those taking the medication without IBT: 38.4% vs 20% for naltrexone/bupropion and 46% vs 33% for liraglutide.

Although there aren’t trial data for other first-generation medications like phentermine, orlistat, or phentermine/topiramate, it is assumed that patients taking these medications would also achieve greater weight loss when combined with IBT.

The obesity pharmacotherapy landscape was upended, however, with the approval of semaglutide (Wegovy), a glucagon-like peptide-1 (GLP-1) receptor agonist, in 2021; and tirzepatide (Zepbound), a GLP-1 and glucose-dependent insulinotropic polypeptide dual receptor agonist, in 2023.

These highly effective medications harness the effect of naturally occurring incretin hormones that reduce appetite through direct and indirect effects on the brain. Although the study designs differed between the STEP 1 and STEP 3 trials, the addition of IBT to semaglutide increased mean percent weight loss from 15% to 16% after 68 weeks of treatment (Wilding JPH et al; Wadden TA).

Comparable benefits from the STEP 3 and SURMOUNT-1 trials of adding IBT to tirzepatide at the maximal tolerated dose increased mean percent weight loss from 21% to 24% after 72 weeks (Wadden TA; Jastreboff AM). Though multicomponent IBT appears to provide greater weight loss when used with nutrient-stimulated hormone-based therapeutics, the additional benefit may be less when compared with first-generation medications.

So, how should we view the role and importance of lifestyle management when a patient is taking a second-generation medication? We need to shift the focus from prescribing a calorie-reduced diet to counseling for healthy eating patterns.

Because the second-generation drugs are more biologically effective in suppressing appetite (ie, reducing hunger, food noise, and cravings, and increasing satiation and satiety), it is easier for patients to reduce their food intake without a sense of deprivation. Furthermore, many patients express less desire to consume savory, sweet, and other enticing foods.

Patients should be encouraged to optimize the quality of their diet, prioritizing lean protein sources with meals and snacks; increasing fruits, vegetables, fiber, and complex carbohydrates; and keeping well hydrated. Because of the risk of developing micronutrient deficiencies while consuming a low-calorie diet — most notably calcium, iron, and vitamin D — patients may be advised to take a daily multivitamin supplement. Dietary counseling should be introduced when patients start pharmacotherapy, and if needed, referral to a registered dietitian nutritionist may be helpful in making these changes.

Additional counseling tips to mitigate the gastrointestinal side effects of these drugs that most commonly occur during the early dose-escalation phase include eating slowly; choosing smaller portion sizes; stopping eating when full; not skipping meals; and avoiding fatty, fried, and greasy foods. These dietary changes are particularly important over the first days after patients take the injection.

The increased weight loss achieved also raises concerns about the need to maintain lean body mass and the importance of physical activity and exercise counseling. All weight loss interventions, including dietary restriction, pharmacotherapy, or bariatric surgery, result in loss of fat mass and lean body mass.

The goal of lifestyle counseling is to minimize and preserve muscle mass (a component of lean body mass) which is needed for optimal health, mobility, daily function, and quality of life. Counseling should incorporate both aerobic and resistance training. Aerobic exercise (eg, brisk walking, jogging, dancing, elliptical machine, and cycling) improves cardiovascular fitness, metabolic health, and energy expenditure. Resistance (strength) training (eg, weightlifting, resistance bands, and circuit training) lessens the loss of muscle mass, enhances functional strength and mobility, and improves bone density (Gorgojo-Martinez JJ et al; Oppert JM et al).

Robust physical activity has also been shown to be a predictor of weight loss maintenance. A recently published randomized placebo-controlled trial demonstrated the benefit of supervised exercise in maintaining body weight and lean body mass after discontinuing 52 weeks of liraglutide treatment compared with no exercise.

Rather than minimizing the provision of lifestyle management, using highly effective second-generation therapeutics redirects the focus on how patients with obesity can strive to achieve a healthy and productive life.

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

Is lifestyle counseling needed with the more effective second-generation nutrient-stimulated, hormone-based medications like semaglutide and tirzepatide?

If so, how intensive does the counseling need to be, and what components should be emphasized?

These are the clinical practice questions at the top of mind for healthcare professionals and researchers who provide care to patients who have overweight and/or obesity.

This is what we know. Lifestyle management is considered foundational in the care of patients with obesity.

Because obesity is fundamentally a disease of energy dysregulation, counseling has traditionally focused on dietary caloric reduction, increased physical activity, and strategies to adapt new cognitive and lifestyle behaviors.

On the basis of trial results from the Diabetes Prevention Program and the Look AHEAD studies, provision of intensive behavioral therapy (IBT) is recommended for treatment of obesity by the Centers for Medicare & Medicaid Services and by the US Preventive Services Task Force (Moyer VA; US Preventive Services Task Force).

IBT is commonly defined as consisting of 12-26 comprehensive and multicomponent sessions over the course of a year.

Reaffirming the primacy of lifestyle management, all antiobesity medications are approved by the US Food and Drug Administration as an adjunct to a reduced-calorie diet and increased physical activity.

The beneficial effect of combining IBT with earlier-generation medications like naltrexone/bupropion or liraglutide demonstrated that more participants in the trials achieved ≥ 10% weight loss with IBT compared with those taking the medication without IBT: 38.4% vs 20% for naltrexone/bupropion and 46% vs 33% for liraglutide.

Although there aren’t trial data for other first-generation medications like phentermine, orlistat, or phentermine/topiramate, it is assumed that patients taking these medications would also achieve greater weight loss when combined with IBT.

The obesity pharmacotherapy landscape was upended, however, with the approval of semaglutide (Wegovy), a glucagon-like peptide-1 (GLP-1) receptor agonist, in 2021; and tirzepatide (Zepbound), a GLP-1 and glucose-dependent insulinotropic polypeptide dual receptor agonist, in 2023.

These highly effective medications harness the effect of naturally occurring incretin hormones that reduce appetite through direct and indirect effects on the brain. Although the study designs differed between the STEP 1 and STEP 3 trials, the addition of IBT to semaglutide increased mean percent weight loss from 15% to 16% after 68 weeks of treatment (Wilding JPH et al; Wadden TA).

Comparable benefits from the STEP 3 and SURMOUNT-1 trials of adding IBT to tirzepatide at the maximal tolerated dose increased mean percent weight loss from 21% to 24% after 72 weeks (Wadden TA; Jastreboff AM). Though multicomponent IBT appears to provide greater weight loss when used with nutrient-stimulated hormone-based therapeutics, the additional benefit may be less when compared with first-generation medications.

So, how should we view the role and importance of lifestyle management when a patient is taking a second-generation medication? We need to shift the focus from prescribing a calorie-reduced diet to counseling for healthy eating patterns.

Because the second-generation drugs are more biologically effective in suppressing appetite (ie, reducing hunger, food noise, and cravings, and increasing satiation and satiety), it is easier for patients to reduce their food intake without a sense of deprivation. Furthermore, many patients express less desire to consume savory, sweet, and other enticing foods.

Patients should be encouraged to optimize the quality of their diet, prioritizing lean protein sources with meals and snacks; increasing fruits, vegetables, fiber, and complex carbohydrates; and keeping well hydrated. Because of the risk of developing micronutrient deficiencies while consuming a low-calorie diet — most notably calcium, iron, and vitamin D — patients may be advised to take a daily multivitamin supplement. Dietary counseling should be introduced when patients start pharmacotherapy, and if needed, referral to a registered dietitian nutritionist may be helpful in making these changes.

Additional counseling tips to mitigate the gastrointestinal side effects of these drugs that most commonly occur during the early dose-escalation phase include eating slowly; choosing smaller portion sizes; stopping eating when full; not skipping meals; and avoiding fatty, fried, and greasy foods. These dietary changes are particularly important over the first days after patients take the injection.

The increased weight loss achieved also raises concerns about the need to maintain lean body mass and the importance of physical activity and exercise counseling. All weight loss interventions, including dietary restriction, pharmacotherapy, or bariatric surgery, result in loss of fat mass and lean body mass.

The goal of lifestyle counseling is to minimize and preserve muscle mass (a component of lean body mass) which is needed for optimal health, mobility, daily function, and quality of life. Counseling should incorporate both aerobic and resistance training. Aerobic exercise (eg, brisk walking, jogging, dancing, elliptical machine, and cycling) improves cardiovascular fitness, metabolic health, and energy expenditure. Resistance (strength) training (eg, weightlifting, resistance bands, and circuit training) lessens the loss of muscle mass, enhances functional strength and mobility, and improves bone density (Gorgojo-Martinez JJ et al; Oppert JM et al).

Robust physical activity has also been shown to be a predictor of weight loss maintenance. A recently published randomized placebo-controlled trial demonstrated the benefit of supervised exercise in maintaining body weight and lean body mass after discontinuing 52 weeks of liraglutide treatment compared with no exercise.

Rather than minimizing the provision of lifestyle management, using highly effective second-generation therapeutics redirects the focus on how patients with obesity can strive to achieve a healthy and productive life.

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

Is lifestyle counseling needed with the more effective second-generation nutrient-stimulated, hormone-based medications like semaglutide and tirzepatide?

If so, how intensive does the counseling need to be, and what components should be emphasized?

These are the clinical practice questions at the top of mind for healthcare professionals and researchers who provide care to patients who have overweight and/or obesity.

This is what we know. Lifestyle management is considered foundational in the care of patients with obesity.

Because obesity is fundamentally a disease of energy dysregulation, counseling has traditionally focused on dietary caloric reduction, increased physical activity, and strategies to adapt new cognitive and lifestyle behaviors.

On the basis of trial results from the Diabetes Prevention Program and the Look AHEAD studies, provision of intensive behavioral therapy (IBT) is recommended for treatment of obesity by the Centers for Medicare & Medicaid Services and by the US Preventive Services Task Force (Moyer VA; US Preventive Services Task Force).

IBT is commonly defined as consisting of 12-26 comprehensive and multicomponent sessions over the course of a year.

Reaffirming the primacy of lifestyle management, all antiobesity medications are approved by the US Food and Drug Administration as an adjunct to a reduced-calorie diet and increased physical activity.

The beneficial effect of combining IBT with earlier-generation medications like naltrexone/bupropion or liraglutide demonstrated that more participants in the trials achieved ≥ 10% weight loss with IBT compared with those taking the medication without IBT: 38.4% vs 20% for naltrexone/bupropion and 46% vs 33% for liraglutide.

Although there aren’t trial data for other first-generation medications like phentermine, orlistat, or phentermine/topiramate, it is assumed that patients taking these medications would also achieve greater weight loss when combined with IBT.

The obesity pharmacotherapy landscape was upended, however, with the approval of semaglutide (Wegovy), a glucagon-like peptide-1 (GLP-1) receptor agonist, in 2021; and tirzepatide (Zepbound), a GLP-1 and glucose-dependent insulinotropic polypeptide dual receptor agonist, in 2023.

These highly effective medications harness the effect of naturally occurring incretin hormones that reduce appetite through direct and indirect effects on the brain. Although the study designs differed between the STEP 1 and STEP 3 trials, the addition of IBT to semaglutide increased mean percent weight loss from 15% to 16% after 68 weeks of treatment (Wilding JPH et al; Wadden TA).

Comparable benefits from the STEP 3 and SURMOUNT-1 trials of adding IBT to tirzepatide at the maximal tolerated dose increased mean percent weight loss from 21% to 24% after 72 weeks (Wadden TA; Jastreboff AM). Though multicomponent IBT appears to provide greater weight loss when used with nutrient-stimulated hormone-based therapeutics, the additional benefit may be less when compared with first-generation medications.

So, how should we view the role and importance of lifestyle management when a patient is taking a second-generation medication? We need to shift the focus from prescribing a calorie-reduced diet to counseling for healthy eating patterns.

Because the second-generation drugs are more biologically effective in suppressing appetite (ie, reducing hunger, food noise, and cravings, and increasing satiation and satiety), it is easier for patients to reduce their food intake without a sense of deprivation. Furthermore, many patients express less desire to consume savory, sweet, and other enticing foods.

Patients should be encouraged to optimize the quality of their diet, prioritizing lean protein sources with meals and snacks; increasing fruits, vegetables, fiber, and complex carbohydrates; and keeping well hydrated. Because of the risk of developing micronutrient deficiencies while consuming a low-calorie diet — most notably calcium, iron, and vitamin D — patients may be advised to take a daily multivitamin supplement. Dietary counseling should be introduced when patients start pharmacotherapy, and if needed, referral to a registered dietitian nutritionist may be helpful in making these changes.

Additional counseling tips to mitigate the gastrointestinal side effects of these drugs that most commonly occur during the early dose-escalation phase include eating slowly; choosing smaller portion sizes; stopping eating when full; not skipping meals; and avoiding fatty, fried, and greasy foods. These dietary changes are particularly important over the first days after patients take the injection.

The increased weight loss achieved also raises concerns about the need to maintain lean body mass and the importance of physical activity and exercise counseling. All weight loss interventions, including dietary restriction, pharmacotherapy, or bariatric surgery, result in loss of fat mass and lean body mass.

The goal of lifestyle counseling is to minimize and preserve muscle mass (a component of lean body mass) which is needed for optimal health, mobility, daily function, and quality of life. Counseling should incorporate both aerobic and resistance training. Aerobic exercise (eg, brisk walking, jogging, dancing, elliptical machine, and cycling) improves cardiovascular fitness, metabolic health, and energy expenditure. Resistance (strength) training (eg, weightlifting, resistance bands, and circuit training) lessens the loss of muscle mass, enhances functional strength and mobility, and improves bone density (Gorgojo-Martinez JJ et al; Oppert JM et al).

Robust physical activity has also been shown to be a predictor of weight loss maintenance. A recently published randomized placebo-controlled trial demonstrated the benefit of supervised exercise in maintaining body weight and lean body mass after discontinuing 52 weeks of liraglutide treatment compared with no exercise.

Rather than minimizing the provision of lifestyle management, using highly effective second-generation therapeutics redirects the focus on how patients with obesity can strive to achieve a healthy and productive life.

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

TOPLINE:

Insulin resistance and obesity in adolescents may lead to increased abdominal fibrogenesis, impairing the capacity of the abdominal subcutaneous adipose tissue (SAT) to store lipids, which may cause fat accumulation in the visceral adipose tissue (VAT) depot and in other organs such as the liver.

METHODOLOGY:

• Abdominal fibrogenesis, but not adipose tissue expandability, is known to increase in adults with obesity and reduce insulin sensitivity; however, little is known about fibrogenesis in adolescents with obesity.
• In this study, researchers investigated if lipid dynamics, fibrogenesis, and abdominal and gluteal adipocyte turnover show dysregulation to a greater extent in insulin-resistant adolescents with obesity than in insulin-sensitive adolescents with obesity.
• They recruited 14 individuals between 12 and 20 years with a body mass index over 30 from the Yale  Clinic, of whom seven participants were classified as insulin resistant.
• Deuterated water methodologies were used to study the indices of adipocyte turnover, lipid dynamics, and fibrogenesis in abdominal and gluteal fat deposits.
• A 3-hour oral glucose tolerance test and multisection MRI scan of the abdominal region were used to assess the indices of glucose metabolism, abdominal fat distribution patterns, and liver fat content.

TAKEAWAY:

• The abdominal and gluteal SAT turnover rate of lipid components (triglyceride production and breakdown as well as de novo lipogenesis contribution) was similar in insulin-resistant and insulin-sensitive adolescents with obesity.
• The insoluble collagen (type I, subunit alpha2) level was higher in the abdominal adipose tissue of insulin-resistant adolescents than in insulin-sensitive adolescents (difference in fractional synthesis rate, 0.611; P < .001), indicating increased abdominal fibrogenesis.
• Abdominal insoluble collagen I alpha2 was associated with higher fasting plasma insulin levels (correlation [r], 0.579; P = .015), a higher visceral to total adipose tissue ratio (r, 0.643; P = .007), and a lower whole-body insulin sensitivity index (r, -0.540; P = .023).
• There was no evidence of increased collagen production in the gluteal adipose tissue, and as a result, fibrogenesis was observed.

IN PRACTICE:

“The increased formation of insoluble collagen observed in insulin-resistant compared with insulin-sensitive individuals contributes to lipid spillover from SAT to VAT and, in turn, serves as a critically important mechanism involved in the complex sequelae of obesity-related metabolic and liver disease pathology,” the authors wrote.

SOURCE:

This study, led by Aaron L. Slusher, Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, was published online in Obesity.

LIMITATIONS:

The researchers did not measure hepatic collagen synthesis rates. The analysis was performed on a small study population. The authors were also unable to assess potential sex differences.

DISCLOSURES:

The study was funded by the Foundation for the National Institutes of Health and Clara Guthrie Patterson Trust Mentored Research Award. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Insulin resistance and obesity in adolescents may lead to increased abdominal fibrogenesis, impairing the capacity of the abdominal subcutaneous adipose tissue (SAT) to store lipids, which may cause fat accumulation in the visceral adipose tissue (VAT) depot and in other organs such as the liver.

METHODOLOGY:

• Abdominal fibrogenesis, but not adipose tissue expandability, is known to increase in adults with obesity and reduce insulin sensitivity; however, little is known about fibrogenesis in adolescents with obesity.
• In this study, researchers investigated if lipid dynamics, fibrogenesis, and abdominal and gluteal adipocyte turnover show dysregulation to a greater extent in insulin-resistant adolescents with obesity than in insulin-sensitive adolescents with obesity.
• They recruited 14 individuals between 12 and 20 years with a body mass index over 30 from the Yale  Clinic, of whom seven participants were classified as insulin resistant.
• Deuterated water methodologies were used to study the indices of adipocyte turnover, lipid dynamics, and fibrogenesis in abdominal and gluteal fat deposits.
• A 3-hour oral glucose tolerance test and multisection MRI scan of the abdominal region were used to assess the indices of glucose metabolism, abdominal fat distribution patterns, and liver fat content.

TAKEAWAY:

• The abdominal and gluteal SAT turnover rate of lipid components (triglyceride production and breakdown as well as de novo lipogenesis contribution) was similar in insulin-resistant and insulin-sensitive adolescents with obesity.
• The insoluble collagen (type I, subunit alpha2) level was higher in the abdominal adipose tissue of insulin-resistant adolescents than in insulin-sensitive adolescents (difference in fractional synthesis rate, 0.611; P < .001), indicating increased abdominal fibrogenesis.
• Abdominal insoluble collagen I alpha2 was associated with higher fasting plasma insulin levels (correlation [r], 0.579; P = .015), a higher visceral to total adipose tissue ratio (r, 0.643; P = .007), and a lower whole-body insulin sensitivity index (r, -0.540; P = .023).
• There was no evidence of increased collagen production in the gluteal adipose tissue, and as a result, fibrogenesis was observed.

IN PRACTICE:

“The increased formation of insoluble collagen observed in insulin-resistant compared with insulin-sensitive individuals contributes to lipid spillover from SAT to VAT and, in turn, serves as a critically important mechanism involved in the complex sequelae of obesity-related metabolic and liver disease pathology,” the authors wrote.

SOURCE:

This study, led by Aaron L. Slusher, Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, was published online in Obesity.

LIMITATIONS:

The researchers did not measure hepatic collagen synthesis rates. The analysis was performed on a small study population. The authors were also unable to assess potential sex differences.

DISCLOSURES:

The study was funded by the Foundation for the National Institutes of Health and Clara Guthrie Patterson Trust Mentored Research Award. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Insulin resistance and obesity in adolescents may lead to increased abdominal fibrogenesis, impairing the capacity of the abdominal subcutaneous adipose tissue (SAT) to store lipids, which may cause fat accumulation in the visceral adipose tissue (VAT) depot and in other organs such as the liver.

METHODOLOGY:

• Abdominal fibrogenesis, but not adipose tissue expandability, is known to increase in adults with obesity and reduce insulin sensitivity; however, little is known about fibrogenesis in adolescents with obesity.
• In this study, researchers investigated if lipid dynamics, fibrogenesis, and abdominal and gluteal adipocyte turnover show dysregulation to a greater extent in insulin-resistant adolescents with obesity than in insulin-sensitive adolescents with obesity.
• They recruited 14 individuals between 12 and 20 years with a body mass index over 30 from the Yale  Clinic, of whom seven participants were classified as insulin resistant.
• Deuterated water methodologies were used to study the indices of adipocyte turnover, lipid dynamics, and fibrogenesis in abdominal and gluteal fat deposits.
• A 3-hour oral glucose tolerance test and multisection MRI scan of the abdominal region were used to assess the indices of glucose metabolism, abdominal fat distribution patterns, and liver fat content.

TAKEAWAY:

• The abdominal and gluteal SAT turnover rate of lipid components (triglyceride production and breakdown as well as de novo lipogenesis contribution) was similar in insulin-resistant and insulin-sensitive adolescents with obesity.
• The insoluble collagen (type I, subunit alpha2) level was higher in the abdominal adipose tissue of insulin-resistant adolescents than in insulin-sensitive adolescents (difference in fractional synthesis rate, 0.611; P < .001), indicating increased abdominal fibrogenesis.
• Abdominal insoluble collagen I alpha2 was associated with higher fasting plasma insulin levels (correlation [r], 0.579; P = .015), a higher visceral to total adipose tissue ratio (r, 0.643; P = .007), and a lower whole-body insulin sensitivity index (r, -0.540; P = .023).
• There was no evidence of increased collagen production in the gluteal adipose tissue, and as a result, fibrogenesis was observed.

IN PRACTICE:

“The increased formation of insoluble collagen observed in insulin-resistant compared with insulin-sensitive individuals contributes to lipid spillover from SAT to VAT and, in turn, serves as a critically important mechanism involved in the complex sequelae of obesity-related metabolic and liver disease pathology,” the authors wrote.

SOURCE:

This study, led by Aaron L. Slusher, Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, was published online in Obesity.

LIMITATIONS:

The researchers did not measure hepatic collagen synthesis rates. The analysis was performed on a small study population. The authors were also unable to assess potential sex differences.

DISCLOSURES:

The study was funded by the Foundation for the National Institutes of Health and Clara Guthrie Patterson Trust Mentored Research Award. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE: 

There were few cases of SARS-CoV-2 infections among emergency department (ED) healthcare personnel and no substantial changes in the delivery of emergency medical care during the initial phase of the COVID-19 pandemic.

METHODOLOGY:

• This multicenter prospective cohort study of US ED healthcare personnel called Project COVERED was conducted from May to December 2020 to evaluate the following outcomes:
• The possibility of infected ED personnel reporting to work
• The burden of COVID-19 symptoms on an ED personnel’s work status
• The association between SARS-CoV-2 infection levels and ED staffing
• Project COVERED enrolled 1673 ED healthcare personnel with 29,825 person weeks of observational data from 25 geographically diverse EDs.
• The presence of any SARS-CoV-2 infection was determined using reverse transcription polymerase chain reaction or IgG antibody testing at baseline, week 2, week 4, and every four subsequent weeks through week 20.
• Investigators also collected weekly data on ED staffing and the incidence of SARS-CoV-2 infections in healthcare facilities.

TAKEAWAY:

• Despite the absence of widespread natural immunity or COVID-19 vaccine availability during the time of this study, only 4.5% of ED healthcare personnel tested positive for SARS-CoV-2 infections, with more than half (57.3%) not experiencing any symptoms.
• Most personnel (83%) who experienced symptoms associated with COVID-19 reported working at least one shift in the ED and nearly all of them continued to work until they received laboratory confirmation of their infection.
• The working time lost as a result of COVID-19 and related concerns was minimal, as 89 healthcare personnel reported 90 person weeks of missed work (0.3% of all weeks).
• During this study, physician-staffing levels ranged from 98.7% to 102.0% of normal staffing, with similar values noted for nursing and nonclinical staffs. Reduced staffing was rare, even during COVID-19 surges.

IN PRACTICE:

“Our findings suggest that the cumulative interaction between infected healthcare personnel and others resulted in a negligible risk of transmission on the scale of public health emergencies,” the authors wrote.

SOURCE:

This study was led by Kurt D. Weber, MD, Department of Emergency Medicine, Orlando Health, Orlando, Florida, and published online in Annals of Emergency Medicine.

LIMITATIONS:

Data regarding the Delta variant surges that occurred toward the end of December and the ED status after the advent of the COVID-19 vaccine were not recorded. There may also have been a selection bias risk in this study because the volunteer participants may have exhibited behaviors like social distancing and use of protective equipment, which may have decreased their risk for infections.

DISCLOSURES:

This study was funded by a cooperative agreement from the Centers for Disease Control and Prevention and the Institute for Clinical and Translational Science at the University of Iowa through a grant from the National Center for Advancing Translational Sciences at the National Institutes of Health. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE: 

There were few cases of SARS-CoV-2 infections among emergency department (ED) healthcare personnel and no substantial changes in the delivery of emergency medical care during the initial phase of the COVID-19 pandemic.

METHODOLOGY:

• This multicenter prospective cohort study of US ED healthcare personnel called Project COVERED was conducted from May to December 2020 to evaluate the following outcomes:
• The possibility of infected ED personnel reporting to work
• The burden of COVID-19 symptoms on an ED personnel’s work status
• The association between SARS-CoV-2 infection levels and ED staffing
• Project COVERED enrolled 1673 ED healthcare personnel with 29,825 person weeks of observational data from 25 geographically diverse EDs.
• The presence of any SARS-CoV-2 infection was determined using reverse transcription polymerase chain reaction or IgG antibody testing at baseline, week 2, week 4, and every four subsequent weeks through week 20.
• Investigators also collected weekly data on ED staffing and the incidence of SARS-CoV-2 infections in healthcare facilities.

TAKEAWAY:

• Despite the absence of widespread natural immunity or COVID-19 vaccine availability during the time of this study, only 4.5% of ED healthcare personnel tested positive for SARS-CoV-2 infections, with more than half (57.3%) not experiencing any symptoms.
• Most personnel (83%) who experienced symptoms associated with COVID-19 reported working at least one shift in the ED and nearly all of them continued to work until they received laboratory confirmation of their infection.
• The working time lost as a result of COVID-19 and related concerns was minimal, as 89 healthcare personnel reported 90 person weeks of missed work (0.3% of all weeks).
• During this study, physician-staffing levels ranged from 98.7% to 102.0% of normal staffing, with similar values noted for nursing and nonclinical staffs. Reduced staffing was rare, even during COVID-19 surges.

IN PRACTICE:

“Our findings suggest that the cumulative interaction between infected healthcare personnel and others resulted in a negligible risk of transmission on the scale of public health emergencies,” the authors wrote.

SOURCE:

This study was led by Kurt D. Weber, MD, Department of Emergency Medicine, Orlando Health, Orlando, Florida, and published online in Annals of Emergency Medicine.

LIMITATIONS:

Data regarding the Delta variant surges that occurred toward the end of December and the ED status after the advent of the COVID-19 vaccine were not recorded. There may also have been a selection bias risk in this study because the volunteer participants may have exhibited behaviors like social distancing and use of protective equipment, which may have decreased their risk for infections.

DISCLOSURES:

This study was funded by a cooperative agreement from the Centers for Disease Control and Prevention and the Institute for Clinical and Translational Science at the University of Iowa through a grant from the National Center for Advancing Translational Sciences at the National Institutes of Health. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE: 

There were few cases of SARS-CoV-2 infections among emergency department (ED) healthcare personnel and no substantial changes in the delivery of emergency medical care during the initial phase of the COVID-19 pandemic.

METHODOLOGY:

• This multicenter prospective cohort study of US ED healthcare personnel called Project COVERED was conducted from May to December 2020 to evaluate the following outcomes:
• The possibility of infected ED personnel reporting to work
• The burden of COVID-19 symptoms on an ED personnel’s work status
• The association between SARS-CoV-2 infection levels and ED staffing
• Project COVERED enrolled 1673 ED healthcare personnel with 29,825 person weeks of observational data from 25 geographically diverse EDs.
• The presence of any SARS-CoV-2 infection was determined using reverse transcription polymerase chain reaction or IgG antibody testing at baseline, week 2, week 4, and every four subsequent weeks through week 20.
• Investigators also collected weekly data on ED staffing and the incidence of SARS-CoV-2 infections in healthcare facilities.

TAKEAWAY:

• Despite the absence of widespread natural immunity or COVID-19 vaccine availability during the time of this study, only 4.5% of ED healthcare personnel tested positive for SARS-CoV-2 infections, with more than half (57.3%) not experiencing any symptoms.
• Most personnel (83%) who experienced symptoms associated with COVID-19 reported working at least one shift in the ED and nearly all of them continued to work until they received laboratory confirmation of their infection.
• The working time lost as a result of COVID-19 and related concerns was minimal, as 89 healthcare personnel reported 90 person weeks of missed work (0.3% of all weeks).
• During this study, physician-staffing levels ranged from 98.7% to 102.0% of normal staffing, with similar values noted for nursing and nonclinical staffs. Reduced staffing was rare, even during COVID-19 surges.

IN PRACTICE:

“Our findings suggest that the cumulative interaction between infected healthcare personnel and others resulted in a negligible risk of transmission on the scale of public health emergencies,” the authors wrote.

SOURCE:

This study was led by Kurt D. Weber, MD, Department of Emergency Medicine, Orlando Health, Orlando, Florida, and published online in Annals of Emergency Medicine.

LIMITATIONS:

Data regarding the Delta variant surges that occurred toward the end of December and the ED status after the advent of the COVID-19 vaccine were not recorded. There may also have been a selection bias risk in this study because the volunteer participants may have exhibited behaviors like social distancing and use of protective equipment, which may have decreased their risk for infections.

DISCLOSURES:

This study was funded by a cooperative agreement from the Centers for Disease Control and Prevention and the Institute for Clinical and Translational Science at the University of Iowa through a grant from the National Center for Advancing Translational Sciences at the National Institutes of Health. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

A retrospective analysis of Medicare data revealed that between 2000 and 2017, immunohistochemistry (IHC) claims associated with melanoma diagnoses grew from 11% to 51%. Rising utilization — and substantial geographic variation in practice patterns — argue for further research to optimize IHC use in the diagnoses of melanoma, according to the authors.

But with sparse guidance regarding best practices for IHC in melanoma diagnosis, concerns for appropriate use are rising, they wrote in their report, recently published in JAMA Dermatology.

Kenechukwu Ojukwu, MD, MPP, of the department of pathology and laboratory medicine, University of California, Los Angeles, and coinvestigators, searched the Surveillance, Epidemiology, and End Results (SEER)–Medicare database for incident in situ or invasive cutaneous melanoma in patients 65 years and older and accompanying IHC claims made during the month of diagnosis through 14 days afterward.

Among 132,547 melanomas in 116,117 patients, 43,396 (33%) had accompanying IHC claims. Such claims were less common with increasing age, declining from 44% in patients aged 65-74 years to 18% in patients 85 aged years and older. Although melanoma incidence increased throughout the period studied, melanoma mortality rates remained relatively stable.

By summary stage at diagnosis, IHC utilization ranged from 29% of in situ cases to 75% of distant cases. After the researchers controlled for year of diagnosis, IHC use was statistically significantly associated with all demographic, tumor, and geographic characteristics examined, except race and ethnicity. Across all the years of the study, regional usage ranged from a low of 22% in Detroit to a high of 44% in both Louisiana and San Jose-Monterey, California. Figures for 2017 ranged from 39% of cases in Kentucky and Atlanta to 68% in New Mexico.

“Given the extensive use of IHC in clinical practice,” the authors concluded, “studies examining the resulting outcomes of IHC on different domains, such as symptom burden, quality of life, and mortality, are crucial.”

The “notable” regional variation in IHC utilization suggests uncertainty about its optimal employment in clinical practice, and, they wrote, “these findings highlight the need for research to identify where IHC provides the most value and to develop guidelines regarding the appropriate use of IHC.”

In an accompanying JAMA Dermatology editorial, Alexandra Flamm, MD, wrote, “now is an exciting time to practice dermatopathology, with an increased number of ancillary tests, such as IHC, that can be used to diagnose malignant neoplasms more precisely and to more accurately determine prognosis and therapeutic options in this age of precision medicine”.

However, added Dr. Flamm, a dermatologist and dermatopathologist at New York University, New York City, the increasing number of ancillary tests is fueling awareness of appropriate use and the importance of ensuring high-quality, value-based healthcare. “With this increased scrutiny on the appropriateness of ancillary histopathologic testing within dermatopathology,” she wrote, “the need is growing for parameters that can be used to guide when to use IHC testing and other ancillary testing.” And using dermatopathologist-developed tools such as American Society of Dermatopathology guidelines for 11 IHC tests can help ensure that appropriate medical decision-making is taken into account when creating these tools, she added.

IHC Usage Growing

“The paper confirms what I already knew,” said Whitney High, MD, JD, who was not involved with the study and was asked to comment on the results. “Use of IHC in dermatopathology has increased substantially, and probably will continue to increase over time.” The societal burden of IHC costs represents a legitimate concern, said Dr. High, professor of dermatology and pathology and director of dermatopathology at the University of Colorado, Aurora.

“However,” he told this news organization, “the histologic diagnosis of melanoma is sometimes substantially subjective — and all physicians, including pathologists, even though they are not providing care in the physical presence of the patient, are fiduciaries.” If an IHC stain would meaningfully improve a patient’s care, he said, physicians should attempt to provide it, unless strictly disallowed by a payer. Controlling medical-care costs might be better left to professional societies to guide care standards over time, he noted.

Dr. High

A retrospective analysis of Medicare data revealed that between 2000 and 2017, immunohistochemistry (IHC) claims associated with melanoma diagnoses grew from 11% to 51%. Rising utilization — and substantial geographic variation in practice patterns — argue for further research to optimize IHC use in the diagnoses of melanoma, according to the authors.

But with sparse guidance regarding best practices for IHC in melanoma diagnosis, concerns for appropriate use are rising, they wrote in their report, recently published in JAMA Dermatology.

Kenechukwu Ojukwu, MD, MPP, of the department of pathology and laboratory medicine, University of California, Los Angeles, and coinvestigators, searched the Surveillance, Epidemiology, and End Results (SEER)–Medicare database for incident in situ or invasive cutaneous melanoma in patients 65 years and older and accompanying IHC claims made during the month of diagnosis through 14 days afterward.

Among 132,547 melanomas in 116,117 patients, 43,396 (33%) had accompanying IHC claims. Such claims were less common with increasing age, declining from 44% in patients aged 65-74 years to 18% in patients 85 aged years and older. Although melanoma incidence increased throughout the period studied, melanoma mortality rates remained relatively stable.

By summary stage at diagnosis, IHC utilization ranged from 29% of in situ cases to 75% of distant cases. After the researchers controlled for year of diagnosis, IHC use was statistically significantly associated with all demographic, tumor, and geographic characteristics examined, except race and ethnicity. Across all the years of the study, regional usage ranged from a low of 22% in Detroit to a high of 44% in both Louisiana and San Jose-Monterey, California. Figures for 2017 ranged from 39% of cases in Kentucky and Atlanta to 68% in New Mexico.

“Given the extensive use of IHC in clinical practice,” the authors concluded, “studies examining the resulting outcomes of IHC on different domains, such as symptom burden, quality of life, and mortality, are crucial.”

The “notable” regional variation in IHC utilization suggests uncertainty about its optimal employment in clinical practice, and, they wrote, “these findings highlight the need for research to identify where IHC provides the most value and to develop guidelines regarding the appropriate use of IHC.”

In an accompanying JAMA Dermatology editorial, Alexandra Flamm, MD, wrote, “now is an exciting time to practice dermatopathology, with an increased number of ancillary tests, such as IHC, that can be used to diagnose malignant neoplasms more precisely and to more accurately determine prognosis and therapeutic options in this age of precision medicine”.

However, added Dr. Flamm, a dermatologist and dermatopathologist at New York University, New York City, the increasing number of ancillary tests is fueling awareness of appropriate use and the importance of ensuring high-quality, value-based healthcare. “With this increased scrutiny on the appropriateness of ancillary histopathologic testing within dermatopathology,” she wrote, “the need is growing for parameters that can be used to guide when to use IHC testing and other ancillary testing.” And using dermatopathologist-developed tools such as American Society of Dermatopathology guidelines for 11 IHC tests can help ensure that appropriate medical decision-making is taken into account when creating these tools, she added.

IHC Usage Growing

“The paper confirms what I already knew,” said Whitney High, MD, JD, who was not involved with the study and was asked to comment on the results. “Use of IHC in dermatopathology has increased substantially, and probably will continue to increase over time.” The societal burden of IHC costs represents a legitimate concern, said Dr. High, professor of dermatology and pathology and director of dermatopathology at the University of Colorado, Aurora.

“However,” he told this news organization, “the histologic diagnosis of melanoma is sometimes substantially subjective — and all physicians, including pathologists, even though they are not providing care in the physical presence of the patient, are fiduciaries.” If an IHC stain would meaningfully improve a patient’s care, he said, physicians should attempt to provide it, unless strictly disallowed by a payer. Controlling medical-care costs might be better left to professional societies to guide care standards over time, he noted.

Dr. High

A retrospective analysis of Medicare data revealed that between 2000 and 2017, immunohistochemistry (IHC) claims associated with melanoma diagnoses grew from 11% to 51%. Rising utilization — and substantial geographic variation in practice patterns — argue for further research to optimize IHC use in the diagnoses of melanoma, according to the authors.

But with sparse guidance regarding best practices for IHC in melanoma diagnosis, concerns for appropriate use are rising, they wrote in their report, recently published in JAMA Dermatology.

Kenechukwu Ojukwu, MD, MPP, of the department of pathology and laboratory medicine, University of California, Los Angeles, and coinvestigators, searched the Surveillance, Epidemiology, and End Results (SEER)–Medicare database for incident in situ or invasive cutaneous melanoma in patients 65 years and older and accompanying IHC claims made during the month of diagnosis through 14 days afterward.

Among 132,547 melanomas in 116,117 patients, 43,396 (33%) had accompanying IHC claims. Such claims were less common with increasing age, declining from 44% in patients aged 65-74 years to 18% in patients 85 aged years and older. Although melanoma incidence increased throughout the period studied, melanoma mortality rates remained relatively stable.

By summary stage at diagnosis, IHC utilization ranged from 29% of in situ cases to 75% of distant cases. After the researchers controlled for year of diagnosis, IHC use was statistically significantly associated with all demographic, tumor, and geographic characteristics examined, except race and ethnicity. Across all the years of the study, regional usage ranged from a low of 22% in Detroit to a high of 44% in both Louisiana and San Jose-Monterey, California. Figures for 2017 ranged from 39% of cases in Kentucky and Atlanta to 68% in New Mexico.

“Given the extensive use of IHC in clinical practice,” the authors concluded, “studies examining the resulting outcomes of IHC on different domains, such as symptom burden, quality of life, and mortality, are crucial.”

The “notable” regional variation in IHC utilization suggests uncertainty about its optimal employment in clinical practice, and, they wrote, “these findings highlight the need for research to identify where IHC provides the most value and to develop guidelines regarding the appropriate use of IHC.”

In an accompanying JAMA Dermatology editorial, Alexandra Flamm, MD, wrote, “now is an exciting time to practice dermatopathology, with an increased number of ancillary tests, such as IHC, that can be used to diagnose malignant neoplasms more precisely and to more accurately determine prognosis and therapeutic options in this age of precision medicine”.

However, added Dr. Flamm, a dermatologist and dermatopathologist at New York University, New York City, the increasing number of ancillary tests is fueling awareness of appropriate use and the importance of ensuring high-quality, value-based healthcare. “With this increased scrutiny on the appropriateness of ancillary histopathologic testing within dermatopathology,” she wrote, “the need is growing for parameters that can be used to guide when to use IHC testing and other ancillary testing.” And using dermatopathologist-developed tools such as American Society of Dermatopathology guidelines for 11 IHC tests can help ensure that appropriate medical decision-making is taken into account when creating these tools, she added.

IHC Usage Growing

“The paper confirms what I already knew,” said Whitney High, MD, JD, who was not involved with the study and was asked to comment on the results. “Use of IHC in dermatopathology has increased substantially, and probably will continue to increase over time.” The societal burden of IHC costs represents a legitimate concern, said Dr. High, professor of dermatology and pathology and director of dermatopathology at the University of Colorado, Aurora.

“However,” he told this news organization, “the histologic diagnosis of melanoma is sometimes substantially subjective — and all physicians, including pathologists, even though they are not providing care in the physical presence of the patient, are fiduciaries.” If an IHC stain would meaningfully improve a patient’s care, he said, physicians should attempt to provide it, unless strictly disallowed by a payer. Controlling medical-care costs might be better left to professional societies to guide care standards over time, he noted.

Dr. High

TOPLINE:

Over time, exercising at least twice a week is associated with significantly fewer insomnia symptoms and better sleep duration, new research shows.

METHODOLOGY:

• The study included 4339 adults aged 39-67 years (48% men) from 21 centers in nine countries participating in the third follow-up to the European Community Respiratory Health Survey (ECRHS III).
• Participants responded to questions about physical activity, insomnia symptoms, sleep duration, and daytime sleepiness at 10-year follow-up.
• Being “physically active” was defined as exercising with a frequency of at least twice a week for ≥ 1 hour per week.
• The main outcome measures were insomnia, sleep time, and daytime sleepiness in relation to physical activity.

TAKEAWAY:

• From baseline to follow-up, 37% of participants were persistently inactive, 25% were persistently active, 20% became inactive, and 18% became active.
• After adjustment for age, sex, body mass index, smoking history, and study center, persistently active participants were less likely to report difficulties with sleep initiation (adjusted odds ratio [aOR], 0.60; 95% CI, 0.45-0.78), with short sleep duration of ≤ 6 hours/night (aOR, 0.71; 95% CI, 0.59-0.85) and long sleep of ≥ 9 hours/night (aOR, 0.53; 95% CI, 0.33-0.84), compared with persistently nonactive subjects.
• Those who were persistently active were 22% less likely to report any symptoms of insomnia, 40% less likely to report two symptoms, and 37% less likely to report three symptoms.
• Daytime sleepiness and difficulties maintaining sleep were found to be unrelated to physical activity status.

IN PRACTICE:

“This study has a long follow-up period (10 years) and indicates strongly that consistency in physical activity might be an important factor in optimizing sleep duration and reducing the symptoms of insomnia,” the authors wrote.

SOURCE:

Erla Björnsdóttir, of the Department of Psychology, Reykjavik University, Reykjavik, Iceland, was the co-senior author and corresponding author of the study. It was published online on March 25 in BMJ Open.

LIMITATIONS:

It’s unclear whether individuals who were active at both timepoints had been continuously physically active throughout the study period or only at those two timepoints. Sleep variables were available only at follow-up and were all subjectively reported, meaning the associations between physical activity and sleep may not be longitudinal. Residual confounders (eg, mental health and musculoskeletal disorders or chronic pain) that can influence both sleep and exercise were not explored.

DISCLOSURES:

Financial support for ECRHS III was provided by the National Health and Medical Research Council (Australia); Antwerp South, Antwerp City: Research Foundation Flanders (Belgium); Estonian Ministry of Education (Estonia); and other international agencies. Additional sources of funding were listed on the original paper. The authors reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

TOPLINE:

Over time, exercising at least twice a week is associated with significantly fewer insomnia symptoms and better sleep duration, new research shows.

METHODOLOGY:

• The study included 4339 adults aged 39-67 years (48% men) from 21 centers in nine countries participating in the third follow-up to the European Community Respiratory Health Survey (ECRHS III).
• Participants responded to questions about physical activity, insomnia symptoms, sleep duration, and daytime sleepiness at 10-year follow-up.
• Being “physically active” was defined as exercising with a frequency of at least twice a week for ≥ 1 hour per week.
• The main outcome measures were insomnia, sleep time, and daytime sleepiness in relation to physical activity.

TAKEAWAY:

• From baseline to follow-up, 37% of participants were persistently inactive, 25% were persistently active, 20% became inactive, and 18% became active.
• After adjustment for age, sex, body mass index, smoking history, and study center, persistently active participants were less likely to report difficulties with sleep initiation (adjusted odds ratio [aOR], 0.60; 95% CI, 0.45-0.78), with short sleep duration of ≤ 6 hours/night (aOR, 0.71; 95% CI, 0.59-0.85) and long sleep of ≥ 9 hours/night (aOR, 0.53; 95% CI, 0.33-0.84), compared with persistently nonactive subjects.
• Those who were persistently active were 22% less likely to report any symptoms of insomnia, 40% less likely to report two symptoms, and 37% less likely to report three symptoms.
• Daytime sleepiness and difficulties maintaining sleep were found to be unrelated to physical activity status.

IN PRACTICE:

“This study has a long follow-up period (10 years) and indicates strongly that consistency in physical activity might be an important factor in optimizing sleep duration and reducing the symptoms of insomnia,” the authors wrote.

SOURCE:

Erla Björnsdóttir, of the Department of Psychology, Reykjavik University, Reykjavik, Iceland, was the co-senior author and corresponding author of the study. It was published online on March 25 in BMJ Open.

LIMITATIONS:

It’s unclear whether individuals who were active at both timepoints had been continuously physically active throughout the study period or only at those two timepoints. Sleep variables were available only at follow-up and were all subjectively reported, meaning the associations between physical activity and sleep may not be longitudinal. Residual confounders (eg, mental health and musculoskeletal disorders or chronic pain) that can influence both sleep and exercise were not explored.

DISCLOSURES:

Financial support for ECRHS III was provided by the National Health and Medical Research Council (Australia); Antwerp South, Antwerp City: Research Foundation Flanders (Belgium); Estonian Ministry of Education (Estonia); and other international agencies. Additional sources of funding were listed on the original paper. The authors reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

TOPLINE:

Over time, exercising at least twice a week is associated with significantly fewer insomnia symptoms and better sleep duration, new research shows.

METHODOLOGY:

• The study included 4339 adults aged 39-67 years (48% men) from 21 centers in nine countries participating in the third follow-up to the European Community Respiratory Health Survey (ECRHS III).
• Participants responded to questions about physical activity, insomnia symptoms, sleep duration, and daytime sleepiness at 10-year follow-up.
• Being “physically active” was defined as exercising with a frequency of at least twice a week for ≥ 1 hour per week.
• The main outcome measures were insomnia, sleep time, and daytime sleepiness in relation to physical activity.

TAKEAWAY:

• From baseline to follow-up, 37% of participants were persistently inactive, 25% were persistently active, 20% became inactive, and 18% became active.
• After adjustment for age, sex, body mass index, smoking history, and study center, persistently active participants were less likely to report difficulties with sleep initiation (adjusted odds ratio [aOR], 0.60; 95% CI, 0.45-0.78), with short sleep duration of ≤ 6 hours/night (aOR, 0.71; 95% CI, 0.59-0.85) and long sleep of ≥ 9 hours/night (aOR, 0.53; 95% CI, 0.33-0.84), compared with persistently nonactive subjects.
• Those who were persistently active were 22% less likely to report any symptoms of insomnia, 40% less likely to report two symptoms, and 37% less likely to report three symptoms.
• Daytime sleepiness and difficulties maintaining sleep were found to be unrelated to physical activity status.

IN PRACTICE:

“This study has a long follow-up period (10 years) and indicates strongly that consistency in physical activity might be an important factor in optimizing sleep duration and reducing the symptoms of insomnia,” the authors wrote.

SOURCE:

Erla Björnsdóttir, of the Department of Psychology, Reykjavik University, Reykjavik, Iceland, was the co-senior author and corresponding author of the study. It was published online on March 25 in BMJ Open.

LIMITATIONS:

It’s unclear whether individuals who were active at both timepoints had been continuously physically active throughout the study period or only at those two timepoints. Sleep variables were available only at follow-up and were all subjectively reported, meaning the associations between physical activity and sleep may not be longitudinal. Residual confounders (eg, mental health and musculoskeletal disorders or chronic pain) that can influence both sleep and exercise were not explored.

DISCLOSURES:

Financial support for ECRHS III was provided by the National Health and Medical Research Council (Australia); Antwerp South, Antwerp City: Research Foundation Flanders (Belgium); Estonian Ministry of Education (Estonia); and other international agencies. Additional sources of funding were listed on the original paper. The authors reported no relevant financial relationships.

A version of this article appeared on Medscape.com.

Data derived from continuous glucose monitoring (CGM) devices can help guide nutrition management and insulin dosing in people with type 2 diabetes (T2D) in primary care settings.

At the Advanced Technologies & Treatments for Diabetes meeting, two experts from the International Diabetes Center – HealthPartners Institute, Minneapolis, offered advice for clinicians. Tara Ettestad, RN, LD, CDCES, program manager for care transformation and training at the center, shared tips for helping patients change their diet based on CGM readings. The center’s medical director Thomas Martens, MD, provided a systematic approach to using CGM to guide adjustment of insulin doses and other medications for insulin-treated patients with T2D.
 

CGM-Guided Nutrition: Focus on Sustainable Changes

With CGM, people with diabetes get real-time feedback about the impact of foods on their glucose levels. This can help them learn not just what they can’t eat but what they can eat, Ms. Ettestad pointed out.

“People want to know what to eat. This is the number-one question that people who are newly diagnosed with diabetes ask, and unfortunately, they typically hear what not to eat. No carbohydrates, no sugar, no white foods, no sweets. This can be really disheartening and confusing for many. We should be focusing on sustainable changes to help improve diets,” she said.

She added, “Not everyone can see a dietitian, but all clinicians can help provide evidence-based nutrition guidance.”

When guiding patients, it’s important to focus on the four “core concepts” outlined in the American Diabetes Association’s nutrition consensus report:

• Emphasize nonstarchy vegetables
• Minimize added sugars and refined grains
• Eat more whole foods, less highly processed foods
• Replace sugar-sweetened beverages with water as often as possible

With CGM, patients can see the differences in response to refined carbs (wheat, rice, and potato), sugars (sucrose, fructose, and glucose), and resistant starches (whole grains, fruits, and legumes). Typically, glucose responses are steeper and higher for the first two compared to resistant starches.

CGM can also show the effects of eating fat and protein, in that they can delay glucose responses to meals even with the same carbohydrate content, Ms. Ettestad said.

It’s important to remind patients that although one goal of using CGM is to reduce post-meal glucose spikes, eating a lot of high-saturated fat, high-calorie foods isn’t the healthful way to do it. “What’s really important when we’re using CGM to help guide nutrition is remembering nutrition quality and what can be good for glucose is not always good for our overall health,” Ms. Ettestad stressed.

She provided these further tips:

• Pick one meal at a time to focus on. Collaborate with patients to see what changes they are able and willing to make. For example, rather than entirely giving up rice or noodles at dinner, try eating less of those and adding more vegetables.
• Suggest that patients keep a food log or use a tracking app so that the source of specific glucose patterns can be identified and addressed.
• Show patients how to check their time in range (TIR) on their mobile device or reader each week so they can see big-picture results of their changes. “This can be really motivating for people to see,” she said.
• Remind people that glucose rises with meals. This seems obvious but may not be to those newly diagnosed, she pointed out.
• Educate patients on glucose targets and explain that other factors such as stress and activity can influence glucose levels.
• Focus on the positive. “What have you been learning about how your meals and beverages affect your glucose?”
• Help guide patients toward better diet quality, even when TIR is a goal, using the four core concepts.
• Encourage curiosity, such as by experimenting with portions, timing, or food order. “What if you try eating nonstarchy foods first?”
• Before adjusting a medication dose, consider asking if the patient is willing to make a nutrition change. “Every visit is an opportunity!”

Adjusting Insulin With the Help of CGM: Focus on Four Patient Subgroups

Dr. Martens noted that about a quarter of people with T2D will require insulin treatment, despite increasing use of sodium-glucose cotransporter 2 (SGLT2) inhibitors and glucagon-like peptide 1 (GLP-1) receptor agonists. And even when insulin is used as a “salvage therapy” in T2D, about two thirds of those individuals still struggle to achieve an A1c below 7% with or without other glucose-lowering medications, he noted.

“So, we have this huge population with type 2 diabetes who have limited access to endocrinology, and advanced insulin delivery devices are not yet available for them. Can better use of CGM drive improvements in care?”

He pointed to MOBILE, a randomized clinical trial, which showed that CGM use resulted in significantly improved A1c at 8 months compared with fingerstick monitoring among adults with T2D taking long-acting insulin alone without premeal insulin. However, TIR was still just 59% (vs 43% with fingerstick testing), suggesting room for improvement.

“This could have been much, much better…Rapid interpretation isn’t really enough. We need to move from interpretation into action,” Dr. Martens said.

His team recently developed a program called “CGM Clinician Guided Management (CCGM)” aimed at primary care that encourages the following principles:

• Appropriate movement toward the safer “high value” noninsulin therapies, that is, GLP-1 agonists and SGLT2 inhibitors.
• Appropriate insulin titration.
• Appropriate cycle time in titration, that is, accelerating more rapidly when one dose isn’t working. “That’s the Achilles heel of primary care,” he noted.
• Quick identification of when the limits of basal insulin therapy have been reached.
• Team-based management for difficult situations and for individuals on multiple daily injections and mealtime insulin regimens. “This is a group that really struggles…in primary care settings,” he noted.

The following three steps are based on published T2D management guidelines:

• Step 1: If the patient has atherosclerotic cardiovascular disease, start with either an SGLT2 inhibitor or GLP-1 agonist. For those with congestive heart failure and/or chronic kidney disease, SGLT2 inhibitors are indicated.
• Step 2: Is the patient on sulfonylurea? Consider eliminating it before moving to CGM-based insulin titration.
• Step 3: Was there a change in therapy based on steps 1 or 2? If not, move to CGM-guided insulin titration. If yes, wait 2-4 weeks to see the impact of therapy change before moving on.

The program categorizes patients into one of four groups based on CGM data, with respective management approaches:

• Category 1: TIR > 70%, time below range (TBR) < 3%: Doing well, keep on going!
• Category 2: TIR > 70%, TBR ≥ 3%: Too much hypoglycemia, need to decrease therapy. Stop sulfonylureas, and if TBR > 10%, also decrease basal insulin dose.
• Category 3: TIR < 70%, TBR < 3%: Too much hyperglycemia — increase therapy.
• Category 4: TIR < 70%, TBR ≥ 3%: This is the toughest category. Fix or advance therapy. These patients should be either referred to a diabetes care and education specialist (formerly known as “diabetes educators”) to troubleshoot their regimens or have their therapy advanced to multiple daily injections. The hypoglycemia should be addressed first for safety, then the hyperglycemia.

“We hope that CCGM is going to be the translation of CGM data into action in primary care, where we struggle with action and inaction,” Dr. Martens said. It’s expected to be posted on the IDC website soon.

Ms. Ettestad’s employer received educational grant funds from Abbott Diabetes Care and Sanofi-Aventis Groupe. She also worked as a product trainer with Tandem Diabetes Care. She is employed by nonprofit International Diabetes Center – HealthPartners Institute and received no personal income or honoraria from these activities. Dr. Martens’ employer received funds on his behalf for research and speaking support from Dexcom, Abbott Diabetes Care, Medtronic, Insulet, Tandem, Sanofi, Lilly, and Novo Nordisk and for consulting from Sanofi and Lilly. He is employed by nonprofit HealthPartners Institute – International Diabetes Center and received no personal income or honoraria from these activities.

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

Data derived from continuous glucose monitoring (CGM) devices can help guide nutrition management and insulin dosing in people with type 2 diabetes (T2D) in primary care settings.

At the Advanced Technologies & Treatments for Diabetes meeting, two experts from the International Diabetes Center – HealthPartners Institute, Minneapolis, offered advice for clinicians. Tara Ettestad, RN, LD, CDCES, program manager for care transformation and training at the center, shared tips for helping patients change their diet based on CGM readings. The center’s medical director Thomas Martens, MD, provided a systematic approach to using CGM to guide adjustment of insulin doses and other medications for insulin-treated patients with T2D.
 

CGM-Guided Nutrition: Focus on Sustainable Changes

With CGM, people with diabetes get real-time feedback about the impact of foods on their glucose levels. This can help them learn not just what they can’t eat but what they can eat, Ms. Ettestad pointed out.

“People want to know what to eat. This is the number-one question that people who are newly diagnosed with diabetes ask, and unfortunately, they typically hear what not to eat. No carbohydrates, no sugar, no white foods, no sweets. This can be really disheartening and confusing for many. We should be focusing on sustainable changes to help improve diets,” she said.

She added, “Not everyone can see a dietitian, but all clinicians can help provide evidence-based nutrition guidance.”

When guiding patients, it’s important to focus on the four “core concepts” outlined in the American Diabetes Association’s nutrition consensus report:

• Emphasize nonstarchy vegetables
• Minimize added sugars and refined grains
• Eat more whole foods, less highly processed foods
• Replace sugar-sweetened beverages with water as often as possible

With CGM, patients can see the differences in response to refined carbs (wheat, rice, and potato), sugars (sucrose, fructose, and glucose), and resistant starches (whole grains, fruits, and legumes). Typically, glucose responses are steeper and higher for the first two compared to resistant starches.

CGM can also show the effects of eating fat and protein, in that they can delay glucose responses to meals even with the same carbohydrate content, Ms. Ettestad said.

It’s important to remind patients that although one goal of using CGM is to reduce post-meal glucose spikes, eating a lot of high-saturated fat, high-calorie foods isn’t the healthful way to do it. “What’s really important when we’re using CGM to help guide nutrition is remembering nutrition quality and what can be good for glucose is not always good for our overall health,” Ms. Ettestad stressed.

She provided these further tips:

• Pick one meal at a time to focus on. Collaborate with patients to see what changes they are able and willing to make. For example, rather than entirely giving up rice or noodles at dinner, try eating less of those and adding more vegetables.
• Suggest that patients keep a food log or use a tracking app so that the source of specific glucose patterns can be identified and addressed.
• Show patients how to check their time in range (TIR) on their mobile device or reader each week so they can see big-picture results of their changes. “This can be really motivating for people to see,” she said.
• Remind people that glucose rises with meals. This seems obvious but may not be to those newly diagnosed, she pointed out.
• Educate patients on glucose targets and explain that other factors such as stress and activity can influence glucose levels.
• Focus on the positive. “What have you been learning about how your meals and beverages affect your glucose?”
• Help guide patients toward better diet quality, even when TIR is a goal, using the four core concepts.
• Encourage curiosity, such as by experimenting with portions, timing, or food order. “What if you try eating nonstarchy foods first?”
• Before adjusting a medication dose, consider asking if the patient is willing to make a nutrition change. “Every visit is an opportunity!”

Adjusting Insulin With the Help of CGM: Focus on Four Patient Subgroups

Dr. Martens noted that about a quarter of people with T2D will require insulin treatment, despite increasing use of sodium-glucose cotransporter 2 (SGLT2) inhibitors and glucagon-like peptide 1 (GLP-1) receptor agonists. And even when insulin is used as a “salvage therapy” in T2D, about two thirds of those individuals still struggle to achieve an A1c below 7% with or without other glucose-lowering medications, he noted.

“So, we have this huge population with type 2 diabetes who have limited access to endocrinology, and advanced insulin delivery devices are not yet available for them. Can better use of CGM drive improvements in care?”

He pointed to MOBILE, a randomized clinical trial, which showed that CGM use resulted in significantly improved A1c at 8 months compared with fingerstick monitoring among adults with T2D taking long-acting insulin alone without premeal insulin. However, TIR was still just 59% (vs 43% with fingerstick testing), suggesting room for improvement.

“This could have been much, much better…Rapid interpretation isn’t really enough. We need to move from interpretation into action,” Dr. Martens said.

His team recently developed a program called “CGM Clinician Guided Management (CCGM)” aimed at primary care that encourages the following principles:

• Appropriate movement toward the safer “high value” noninsulin therapies, that is, GLP-1 agonists and SGLT2 inhibitors.
• Appropriate insulin titration.
• Appropriate cycle time in titration, that is, accelerating more rapidly when one dose isn’t working. “That’s the Achilles heel of primary care,” he noted.
• Quick identification of when the limits of basal insulin therapy have been reached.
• Team-based management for difficult situations and for individuals on multiple daily injections and mealtime insulin regimens. “This is a group that really struggles…in primary care settings,” he noted.

The following three steps are based on published T2D management guidelines:

• Step 1: If the patient has atherosclerotic cardiovascular disease, start with either an SGLT2 inhibitor or GLP-1 agonist. For those with congestive heart failure and/or chronic kidney disease, SGLT2 inhibitors are indicated.
• Step 2: Is the patient on sulfonylurea? Consider eliminating it before moving to CGM-based insulin titration.
• Step 3: Was there a change in therapy based on steps 1 or 2? If not, move to CGM-guided insulin titration. If yes, wait 2-4 weeks to see the impact of therapy change before moving on.

The program categorizes patients into one of four groups based on CGM data, with respective management approaches:

• Category 1: TIR > 70%, time below range (TBR) < 3%: Doing well, keep on going!
• Category 2: TIR > 70%, TBR ≥ 3%: Too much hypoglycemia, need to decrease therapy. Stop sulfonylureas, and if TBR > 10%, also decrease basal insulin dose.
• Category 3: TIR < 70%, TBR < 3%: Too much hyperglycemia — increase therapy.
• Category 4: TIR < 70%, TBR ≥ 3%: This is the toughest category. Fix or advance therapy. These patients should be either referred to a diabetes care and education specialist (formerly known as “diabetes educators”) to troubleshoot their regimens or have their therapy advanced to multiple daily injections. The hypoglycemia should be addressed first for safety, then the hyperglycemia.

“We hope that CCGM is going to be the translation of CGM data into action in primary care, where we struggle with action and inaction,” Dr. Martens said. It’s expected to be posted on the IDC website soon.

Ms. Ettestad’s employer received educational grant funds from Abbott Diabetes Care and Sanofi-Aventis Groupe. She also worked as a product trainer with Tandem Diabetes Care. She is employed by nonprofit International Diabetes Center – HealthPartners Institute and received no personal income or honoraria from these activities. Dr. Martens’ employer received funds on his behalf for research and speaking support from Dexcom, Abbott Diabetes Care, Medtronic, Insulet, Tandem, Sanofi, Lilly, and Novo Nordisk and for consulting from Sanofi and Lilly. He is employed by nonprofit HealthPartners Institute – International Diabetes Center and received no personal income or honoraria from these activities.

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

Data derived from continuous glucose monitoring (CGM) devices can help guide nutrition management and insulin dosing in people with type 2 diabetes (T2D) in primary care settings.

At the Advanced Technologies & Treatments for Diabetes meeting, two experts from the International Diabetes Center – HealthPartners Institute, Minneapolis, offered advice for clinicians. Tara Ettestad, RN, LD, CDCES, program manager for care transformation and training at the center, shared tips for helping patients change their diet based on CGM readings. The center’s medical director Thomas Martens, MD, provided a systematic approach to using CGM to guide adjustment of insulin doses and other medications for insulin-treated patients with T2D.
 

CGM-Guided Nutrition: Focus on Sustainable Changes

With CGM, people with diabetes get real-time feedback about the impact of foods on their glucose levels. This can help them learn not just what they can’t eat but what they can eat, Ms. Ettestad pointed out.

“People want to know what to eat. This is the number-one question that people who are newly diagnosed with diabetes ask, and unfortunately, they typically hear what not to eat. No carbohydrates, no sugar, no white foods, no sweets. This can be really disheartening and confusing for many. We should be focusing on sustainable changes to help improve diets,” she said.

She added, “Not everyone can see a dietitian, but all clinicians can help provide evidence-based nutrition guidance.”

When guiding patients, it’s important to focus on the four “core concepts” outlined in the American Diabetes Association’s nutrition consensus report:

• Emphasize nonstarchy vegetables
• Minimize added sugars and refined grains
• Eat more whole foods, less highly processed foods
• Replace sugar-sweetened beverages with water as often as possible

With CGM, patients can see the differences in response to refined carbs (wheat, rice, and potato), sugars (sucrose, fructose, and glucose), and resistant starches (whole grains, fruits, and legumes). Typically, glucose responses are steeper and higher for the first two compared to resistant starches.

CGM can also show the effects of eating fat and protein, in that they can delay glucose responses to meals even with the same carbohydrate content, Ms. Ettestad said.

It’s important to remind patients that although one goal of using CGM is to reduce post-meal glucose spikes, eating a lot of high-saturated fat, high-calorie foods isn’t the healthful way to do it. “What’s really important when we’re using CGM to help guide nutrition is remembering nutrition quality and what can be good for glucose is not always good for our overall health,” Ms. Ettestad stressed.

She provided these further tips:

• Pick one meal at a time to focus on. Collaborate with patients to see what changes they are able and willing to make. For example, rather than entirely giving up rice or noodles at dinner, try eating less of those and adding more vegetables.
• Suggest that patients keep a food log or use a tracking app so that the source of specific glucose patterns can be identified and addressed.
• Show patients how to check their time in range (TIR) on their mobile device or reader each week so they can see big-picture results of their changes. “This can be really motivating for people to see,” she said.
• Remind people that glucose rises with meals. This seems obvious but may not be to those newly diagnosed, she pointed out.
• Educate patients on glucose targets and explain that other factors such as stress and activity can influence glucose levels.
• Focus on the positive. “What have you been learning about how your meals and beverages affect your glucose?”
• Help guide patients toward better diet quality, even when TIR is a goal, using the four core concepts.
• Encourage curiosity, such as by experimenting with portions, timing, or food order. “What if you try eating nonstarchy foods first?”
• Before adjusting a medication dose, consider asking if the patient is willing to make a nutrition change. “Every visit is an opportunity!”

Adjusting Insulin With the Help of CGM: Focus on Four Patient Subgroups

Dr. Martens noted that about a quarter of people with T2D will require insulin treatment, despite increasing use of sodium-glucose cotransporter 2 (SGLT2) inhibitors and glucagon-like peptide 1 (GLP-1) receptor agonists. And even when insulin is used as a “salvage therapy” in T2D, about two thirds of those individuals still struggle to achieve an A1c below 7% with or without other glucose-lowering medications, he noted.

“So, we have this huge population with type 2 diabetes who have limited access to endocrinology, and advanced insulin delivery devices are not yet available for them. Can better use of CGM drive improvements in care?”

He pointed to MOBILE, a randomized clinical trial, which showed that CGM use resulted in significantly improved A1c at 8 months compared with fingerstick monitoring among adults with T2D taking long-acting insulin alone without premeal insulin. However, TIR was still just 59% (vs 43% with fingerstick testing), suggesting room for improvement.

“This could have been much, much better…Rapid interpretation isn’t really enough. We need to move from interpretation into action,” Dr. Martens said.

His team recently developed a program called “CGM Clinician Guided Management (CCGM)” aimed at primary care that encourages the following principles:

• Appropriate movement toward the safer “high value” noninsulin therapies, that is, GLP-1 agonists and SGLT2 inhibitors.
• Appropriate insulin titration.
• Appropriate cycle time in titration, that is, accelerating more rapidly when one dose isn’t working. “That’s the Achilles heel of primary care,” he noted.
• Quick identification of when the limits of basal insulin therapy have been reached.
• Team-based management for difficult situations and for individuals on multiple daily injections and mealtime insulin regimens. “This is a group that really struggles…in primary care settings,” he noted.

The following three steps are based on published T2D management guidelines:

• Step 1: If the patient has atherosclerotic cardiovascular disease, start with either an SGLT2 inhibitor or GLP-1 agonist. For those with congestive heart failure and/or chronic kidney disease, SGLT2 inhibitors are indicated.
• Step 2: Is the patient on sulfonylurea? Consider eliminating it before moving to CGM-based insulin titration.
• Step 3: Was there a change in therapy based on steps 1 or 2? If not, move to CGM-guided insulin titration. If yes, wait 2-4 weeks to see the impact of therapy change before moving on.

The program categorizes patients into one of four groups based on CGM data, with respective management approaches:

• Category 1: TIR > 70%, time below range (TBR) < 3%: Doing well, keep on going!
• Category 2: TIR > 70%, TBR ≥ 3%: Too much hypoglycemia, need to decrease therapy. Stop sulfonylureas, and if TBR > 10%, also decrease basal insulin dose.
• Category 3: TIR < 70%, TBR < 3%: Too much hyperglycemia — increase therapy.
• Category 4: TIR < 70%, TBR ≥ 3%: This is the toughest category. Fix or advance therapy. These patients should be either referred to a diabetes care and education specialist (formerly known as “diabetes educators”) to troubleshoot their regimens or have their therapy advanced to multiple daily injections. The hypoglycemia should be addressed first for safety, then the hyperglycemia.

“We hope that CCGM is going to be the translation of CGM data into action in primary care, where we struggle with action and inaction,” Dr. Martens said. It’s expected to be posted on the IDC website soon.

Ms. Ettestad’s employer received educational grant funds from Abbott Diabetes Care and Sanofi-Aventis Groupe. She also worked as a product trainer with Tandem Diabetes Care. She is employed by nonprofit International Diabetes Center – HealthPartners Institute and received no personal income or honoraria from these activities. Dr. Martens’ employer received funds on his behalf for research and speaking support from Dexcom, Abbott Diabetes Care, Medtronic, Insulet, Tandem, Sanofi, Lilly, and Novo Nordisk and for consulting from Sanofi and Lilly. He is employed by nonprofit HealthPartners Institute – International Diabetes Center and received no personal income or honoraria from these activities.

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

The Diagnosis: Erythema Migrans

The patient was clinically diagnosed with erythema migrans. He did not recall a tick bite but spent a lot of time outdoors. He was treated with 10 days of doxycycline 100 mg twice daily with complete resolution of the rash.

Lyme disease is a spirochete infection caused by the Borrelia burgdorferi sensu lato species complex and transmitted by the Ixodidae tick family. It is the most common tick-borne disease in the United States and mostly is reported in the northeastern and upper midwestern states during the warmer seasons, but it is prevalent worldwide. In geographic areas where Lyme disease is common, the incidence is approximately 40 cases per 100,000 individuals.¹ Our patient resided in coastal South Carolina. Lyme disease is more commonly reported in White individuals. The skin lesions may be more difficult to discern and diagnose in patients with darker skin types, leading to delayed diagnosis and treatment.^2,3

Patients may be diagnosed with early localized, early disseminated, or late Lyme disease. Erythema migrans is the early localized form of the disease and is classically described as an erythematous targetlike plaque with raised borders arising at the site of the tick bite 1 to 2 weeks later.⁴ However, many patients simply have a homogeneous erythematous plaque with raised advancing borders ranging in size from 5 to 68 cm.⁵ In a 2022 study of 69 patients with suspected Lyme disease, only 35 (50.7%) were determined to truly have acute Lyme disease.⁶ Of them, only 2 (5.7%) had the classic ringwithin- a-ring pattern. Most plaques were uniform, pink, oval-shaped lesions with well-demarcated borders.⁶

The rash may present with a burning sensation, or patients may experience no symptoms at all, which can lead to delayed diagnosis and progression to late disease. Patients may develop malaise, fever, headache, body aches, or joint pain. Early disseminated disease manifests similarly. Patients with disseminated disease also may develop more serious complications, including lymphadenopathy; cranial nerve palsies; ocular involvement; meningitis; or cardiac abnormalities such as myocarditis, pericarditis, or arrhythmia. Late disease most often causes arthritis of the large joints, though it also can have cardiac or neurologic manifestations. Some patients with chronic disease—the majority of whom were diagnosed in Europe—may develop acrodermatitis chronica atrophicans with edematous blue-red plaques that become atrophic and hyperpigmented fibrotic plaques over the course of years.

Allergic contact dermatitis to a plant more likely would cause itchy or painful, oozy, weepy, vesicular lesions arranged in a linear pattern. A dermatophyte infection likely would cause a scaly eruption. Although our patient presented with a sharply demarcated, raised, erythematous lesion, the distribution did not follow normal clothing lines and would be unusual for a photosensitive drug eruption. Cellulitis likely would be associated with tenderness or warmth to the touch. Finally, southern tick-associated rash illness, which is associated with Amblyomma americanum (lone star tick) bites, may appear with a similar rash but few systemic symptoms. It also can be treated with tetracycline antibiotics.⁷

Our case in South Carolina demonstrates the importance of keeping Lyme disease in the differential. Clinicians should remember to ask patients about their travel history. In endemic areas, patients with erythema migrans can be started on treatment without waiting for serology. Patients with early Lyme disease may or may not have positive serologies at the time of presentation.⁶ Guidelines for the treatment of Lyme disease have been revised in recent years to decrease patient antibiotic exposure by reducing the number of days of antibiotic therapy.⁸ A recent randomized controlled trial found no significant difference in recurrence for patients treated with 7 days of doxycycline compared with 14 days.⁹ We typically prescribe a 10-day course of doxycycline, which also is adequate for concurrent rickettsial disease. Patients who develop malarialike symptoms should be evaluated for babesiosis, which is treated with clindamycin.

The Diagnosis: Erythema Migrans

The patient was clinically diagnosed with erythema migrans. He did not recall a tick bite but spent a lot of time outdoors. He was treated with 10 days of doxycycline 100 mg twice daily with complete resolution of the rash.

Lyme disease is a spirochete infection caused by the Borrelia burgdorferi sensu lato species complex and transmitted by the Ixodidae tick family. It is the most common tick-borne disease in the United States and mostly is reported in the northeastern and upper midwestern states during the warmer seasons, but it is prevalent worldwide. In geographic areas where Lyme disease is common, the incidence is approximately 40 cases per 100,000 individuals.¹ Our patient resided in coastal South Carolina. Lyme disease is more commonly reported in White individuals. The skin lesions may be more difficult to discern and diagnose in patients with darker skin types, leading to delayed diagnosis and treatment.^2,3

Patients may be diagnosed with early localized, early disseminated, or late Lyme disease. Erythema migrans is the early localized form of the disease and is classically described as an erythematous targetlike plaque with raised borders arising at the site of the tick bite 1 to 2 weeks later.⁴ However, many patients simply have a homogeneous erythematous plaque with raised advancing borders ranging in size from 5 to 68 cm.⁵ In a 2022 study of 69 patients with suspected Lyme disease, only 35 (50.7%) were determined to truly have acute Lyme disease.⁶ Of them, only 2 (5.7%) had the classic ringwithin- a-ring pattern. Most plaques were uniform, pink, oval-shaped lesions with well-demarcated borders.⁶

The rash may present with a burning sensation, or patients may experience no symptoms at all, which can lead to delayed diagnosis and progression to late disease. Patients may develop malaise, fever, headache, body aches, or joint pain. Early disseminated disease manifests similarly. Patients with disseminated disease also may develop more serious complications, including lymphadenopathy; cranial nerve palsies; ocular involvement; meningitis; or cardiac abnormalities such as myocarditis, pericarditis, or arrhythmia. Late disease most often causes arthritis of the large joints, though it also can have cardiac or neurologic manifestations. Some patients with chronic disease—the majority of whom were diagnosed in Europe—may develop acrodermatitis chronica atrophicans with edematous blue-red plaques that become atrophic and hyperpigmented fibrotic plaques over the course of years.

Allergic contact dermatitis to a plant more likely would cause itchy or painful, oozy, weepy, vesicular lesions arranged in a linear pattern. A dermatophyte infection likely would cause a scaly eruption. Although our patient presented with a sharply demarcated, raised, erythematous lesion, the distribution did not follow normal clothing lines and would be unusual for a photosensitive drug eruption. Cellulitis likely would be associated with tenderness or warmth to the touch. Finally, southern tick-associated rash illness, which is associated with Amblyomma americanum (lone star tick) bites, may appear with a similar rash but few systemic symptoms. It also can be treated with tetracycline antibiotics.⁷

Our case in South Carolina demonstrates the importance of keeping Lyme disease in the differential. Clinicians should remember to ask patients about their travel history. In endemic areas, patients with erythema migrans can be started on treatment without waiting for serology. Patients with early Lyme disease may or may not have positive serologies at the time of presentation.⁶ Guidelines for the treatment of Lyme disease have been revised in recent years to decrease patient antibiotic exposure by reducing the number of days of antibiotic therapy.⁸ A recent randomized controlled trial found no significant difference in recurrence for patients treated with 7 days of doxycycline compared with 14 days.⁹ We typically prescribe a 10-day course of doxycycline, which also is adequate for concurrent rickettsial disease. Patients who develop malarialike symptoms should be evaluated for babesiosis, which is treated with clindamycin.

The Diagnosis: Erythema Migrans

The patient was clinically diagnosed with erythema migrans. He did not recall a tick bite but spent a lot of time outdoors. He was treated with 10 days of doxycycline 100 mg twice daily with complete resolution of the rash.

Lyme disease is a spirochete infection caused by the Borrelia burgdorferi sensu lato species complex and transmitted by the Ixodidae tick family. It is the most common tick-borne disease in the United States and mostly is reported in the northeastern and upper midwestern states during the warmer seasons, but it is prevalent worldwide. In geographic areas where Lyme disease is common, the incidence is approximately 40 cases per 100,000 individuals.¹ Our patient resided in coastal South Carolina. Lyme disease is more commonly reported in White individuals. The skin lesions may be more difficult to discern and diagnose in patients with darker skin types, leading to delayed diagnosis and treatment.^2,3

Patients may be diagnosed with early localized, early disseminated, or late Lyme disease. Erythema migrans is the early localized form of the disease and is classically described as an erythematous targetlike plaque with raised borders arising at the site of the tick bite 1 to 2 weeks later.⁴ However, many patients simply have a homogeneous erythematous plaque with raised advancing borders ranging in size from 5 to 68 cm.⁵ In a 2022 study of 69 patients with suspected Lyme disease, only 35 (50.7%) were determined to truly have acute Lyme disease.⁶ Of them, only 2 (5.7%) had the classic ringwithin- a-ring pattern. Most plaques were uniform, pink, oval-shaped lesions with well-demarcated borders.⁶

The rash may present with a burning sensation, or patients may experience no symptoms at all, which can lead to delayed diagnosis and progression to late disease. Patients may develop malaise, fever, headache, body aches, or joint pain. Early disseminated disease manifests similarly. Patients with disseminated disease also may develop more serious complications, including lymphadenopathy; cranial nerve palsies; ocular involvement; meningitis; or cardiac abnormalities such as myocarditis, pericarditis, or arrhythmia. Late disease most often causes arthritis of the large joints, though it also can have cardiac or neurologic manifestations. Some patients with chronic disease—the majority of whom were diagnosed in Europe—may develop acrodermatitis chronica atrophicans with edematous blue-red plaques that become atrophic and hyperpigmented fibrotic plaques over the course of years.

Allergic contact dermatitis to a plant more likely would cause itchy or painful, oozy, weepy, vesicular lesions arranged in a linear pattern. A dermatophyte infection likely would cause a scaly eruption. Although our patient presented with a sharply demarcated, raised, erythematous lesion, the distribution did not follow normal clothing lines and would be unusual for a photosensitive drug eruption. Cellulitis likely would be associated with tenderness or warmth to the touch. Finally, southern tick-associated rash illness, which is associated with Amblyomma americanum (lone star tick) bites, may appear with a similar rash but few systemic symptoms. It also can be treated with tetracycline antibiotics.⁷

Our case in South Carolina demonstrates the importance of keeping Lyme disease in the differential. Clinicians should remember to ask patients about their travel history. In endemic areas, patients with erythema migrans can be started on treatment without waiting for serology. Patients with early Lyme disease may or may not have positive serologies at the time of presentation.⁶ Guidelines for the treatment of Lyme disease have been revised in recent years to decrease patient antibiotic exposure by reducing the number of days of antibiotic therapy.⁸ A recent randomized controlled trial found no significant difference in recurrence for patients treated with 7 days of doxycycline compared with 14 days.⁹ We typically prescribe a 10-day course of doxycycline, which also is adequate for concurrent rickettsial disease. Patients who develop malarialike symptoms should be evaluated for babesiosis, which is treated with clindamycin.

SAN DIEGO — When Jennifer Adams, MD, recently entered the search term “warts” on the ClinicalTrials.gov web site, nearly 240 results popped up.

“There is a lot of research activity around this topic,” Dr. Adams, vice chair of the department of dermatology at the University of Nebraska Medical Center, said at the annual meeting of the American Academy of Dermatology. “We just don’t have fantastic, well-run trials on many of the currently available treatments.”

In a 2012 Cochrane review on the topical treatment of non-genital cutaneous warts, authors drew from 85 trials involving 8,815 randomized patients. They found that most warts spontaneously resolved, and the authors determined salicylic acid to be safe and modestly beneficial. Specifically, trials of salicylic acid (SA) versus placebo showed that the former significantly increased the chance of clearance of warts at all sites (risk ratio, 1.56, 95% confidence interval [CI], 1.20-2.03). A meta-analysis of cryotherapy versus placebo for warts at all sites favored neither intervention nor control (RR, 1.45, 95% CI, 0.65-3.23).

“The authors determined that there is less evidence for cryotherapy but stated that it may work when salicylic acid does not, or in combination with salicylic acid,” Dr. Adams said. “However, salicylic acid and cryotherapy don’t do enough for our patients [with warts]. There are a lot of situations where we need to reach further into the toolbox.”

A 2021 review article listed many options for managing difficult-to-treat warts, including intralesional Candida antigen, intralesional measles-mumps-rubella (MMR), intralesional HPV vaccine, intralesional vitamin D, intralesional cidofovir, intralesional bleomycin, and intralesional 5-FU injections, and topical vitamin D, topical cidofovir, and topical bleomycin. According to Dr. Adams, clinical data exist for cidofovir and vitamin D but studies evaluated different formulations, doses, sites of administration, and limited randomized controlled trials.

“Intralesional cidofovir is more effective than the topical form, but intralesional cidofovir can be painful and both forms are expensive,” she said. “Topical vitamin D is less likely to cause dyspigmentation compared to other available treatments, so it’s a great option in skin of color, but it has been less effective compared to some of our other topical treatments.”

Newer Options Promising

On the horizon, berdazimer gel was approved in January of 2024 for the treatment of molluscum but results from trials of its use for extragenital warts are encouraging. Another promising option is topical ionic contraviral therapy (ICVT) with digoxin and furosemide combined, which inhibits cellular potassium influx. A phase 2a randomized controlled trial of 80 adults found a statistically significant reduction in the diameter of cutaneous warts among those who received ICVT compared with those who received placebo (P = .002). “It’s cheap and well tolerated,” Dr. Adams added.

Intralesional approaches to treating warts offer another alternative. A 2020 review of 43 articles concluded that intralesional treatments for warts have equal or superior efficacy to first-line salicylic acid or cryotherapy.

Dr. Adams said that she considers intralesional treatments such as vitamin D, MMR vaccine antigen, and Candida antigen for refractory, numerous, or distant site warts. “Injecting the MMR vaccine into the largest wart every 2 weeks has been found to lead to complete clearance in 60%-68% of cases in one study,” she said. “The benefit is that it’s $21 per dose, which is nice, but as with any vaccination, patients can develop flu-like symptoms as side effects.”

Use of the HPV vaccine for treating cutaneous warts remains controversial, she continued, but it seems to work better in younger patients. In one open-label study that evaluated the HPV vaccine for the treatment of multiple recalcitrant warts, with doses administered at 0. 2, and 6 months, the response rate 3 months after the third dose was 55% among those older than age 26, compared with 84% among those ages 9-26 years.

Another option, intralesional cidofovir, has been shown to be especially effective for refractory warts. “It has also been shown to work for warts in immunocompetent and immunocompromised patients,” Dr. Adams said.

In the realm of adjuvant treatments, microneedling has been found to have similar efficacy to needling, Dr. Adams said, but with minimal pain. “When we combine it with topical treatments like 5-FU, it’s even more efficacious,” she said.

One study found that combining microneedling with topical 5-FU had clearance similar to that of intralesional 5-FU or microneedling alone, but involved fewer treatment sessions and less pain in the combination group.

Autoinoculation has been used to stimulate an immune response in patients with warts, leading to clearance rates of 4% (mild clearance) to 66% (complete clearance) in one study. “We would expect this to work better in immunocompetent patients, but it’s something to keep in mind if you’re limited in the medications you can get for a patient,” Dr. Adams said. Also, results from a systematic review and meta-analysis suggest that systemic retinoids combined with intralesional immunotherapy leads to higher clearance rates and lower rates of recurrence of warts. The top performer among those tested was acitretin plus Candida antigen.

Dr. Adams advised dermatologists who try alternatives to salicylic acid and cryotherapy for warts to be “wary of a lack of high-level evidence” for their use. “They can be helpful for patients who have failed traditional therapies or have a contraindication to the usual go-tos.”

She reported having no relevant financial disclosures.

SAN DIEGO — When Jennifer Adams, MD, recently entered the search term “warts” on the ClinicalTrials.gov web site, nearly 240 results popped up.

“There is a lot of research activity around this topic,” Dr. Adams, vice chair of the department of dermatology at the University of Nebraska Medical Center, said at the annual meeting of the American Academy of Dermatology. “We just don’t have fantastic, well-run trials on many of the currently available treatments.”

In a 2012 Cochrane review on the topical treatment of non-genital cutaneous warts, authors drew from 85 trials involving 8,815 randomized patients. They found that most warts spontaneously resolved, and the authors determined salicylic acid to be safe and modestly beneficial. Specifically, trials of salicylic acid (SA) versus placebo showed that the former significantly increased the chance of clearance of warts at all sites (risk ratio, 1.56, 95% confidence interval [CI], 1.20-2.03). A meta-analysis of cryotherapy versus placebo for warts at all sites favored neither intervention nor control (RR, 1.45, 95% CI, 0.65-3.23).

“The authors determined that there is less evidence for cryotherapy but stated that it may work when salicylic acid does not, or in combination with salicylic acid,” Dr. Adams said. “However, salicylic acid and cryotherapy don’t do enough for our patients [with warts]. There are a lot of situations where we need to reach further into the toolbox.”

A 2021 review article listed many options for managing difficult-to-treat warts, including intralesional Candida antigen, intralesional measles-mumps-rubella (MMR), intralesional HPV vaccine, intralesional vitamin D, intralesional cidofovir, intralesional bleomycin, and intralesional 5-FU injections, and topical vitamin D, topical cidofovir, and topical bleomycin. According to Dr. Adams, clinical data exist for cidofovir and vitamin D but studies evaluated different formulations, doses, sites of administration, and limited randomized controlled trials.

“Intralesional cidofovir is more effective than the topical form, but intralesional cidofovir can be painful and both forms are expensive,” she said. “Topical vitamin D is less likely to cause dyspigmentation compared to other available treatments, so it’s a great option in skin of color, but it has been less effective compared to some of our other topical treatments.”

Newer Options Promising

On the horizon, berdazimer gel was approved in January of 2024 for the treatment of molluscum but results from trials of its use for extragenital warts are encouraging. Another promising option is topical ionic contraviral therapy (ICVT) with digoxin and furosemide combined, which inhibits cellular potassium influx. A phase 2a randomized controlled trial of 80 adults found a statistically significant reduction in the diameter of cutaneous warts among those who received ICVT compared with those who received placebo (P = .002). “It’s cheap and well tolerated,” Dr. Adams added.

Intralesional approaches to treating warts offer another alternative. A 2020 review of 43 articles concluded that intralesional treatments for warts have equal or superior efficacy to first-line salicylic acid or cryotherapy.

Dr. Adams said that she considers intralesional treatments such as vitamin D, MMR vaccine antigen, and Candida antigen for refractory, numerous, or distant site warts. “Injecting the MMR vaccine into the largest wart every 2 weeks has been found to lead to complete clearance in 60%-68% of cases in one study,” she said. “The benefit is that it’s $21 per dose, which is nice, but as with any vaccination, patients can develop flu-like symptoms as side effects.”

Use of the HPV vaccine for treating cutaneous warts remains controversial, she continued, but it seems to work better in younger patients. In one open-label study that evaluated the HPV vaccine for the treatment of multiple recalcitrant warts, with doses administered at 0. 2, and 6 months, the response rate 3 months after the third dose was 55% among those older than age 26, compared with 84% among those ages 9-26 years.

Another option, intralesional cidofovir, has been shown to be especially effective for refractory warts. “It has also been shown to work for warts in immunocompetent and immunocompromised patients,” Dr. Adams said.

In the realm of adjuvant treatments, microneedling has been found to have similar efficacy to needling, Dr. Adams said, but with minimal pain. “When we combine it with topical treatments like 5-FU, it’s even more efficacious,” she said.

One study found that combining microneedling with topical 5-FU had clearance similar to that of intralesional 5-FU or microneedling alone, but involved fewer treatment sessions and less pain in the combination group.

Autoinoculation has been used to stimulate an immune response in patients with warts, leading to clearance rates of 4% (mild clearance) to 66% (complete clearance) in one study. “We would expect this to work better in immunocompetent patients, but it’s something to keep in mind if you’re limited in the medications you can get for a patient,” Dr. Adams said. Also, results from a systematic review and meta-analysis suggest that systemic retinoids combined with intralesional immunotherapy leads to higher clearance rates and lower rates of recurrence of warts. The top performer among those tested was acitretin plus Candida antigen.

Dr. Adams advised dermatologists who try alternatives to salicylic acid and cryotherapy for warts to be “wary of a lack of high-level evidence” for their use. “They can be helpful for patients who have failed traditional therapies or have a contraindication to the usual go-tos.”

She reported having no relevant financial disclosures.

SAN DIEGO — When Jennifer Adams, MD, recently entered the search term “warts” on the ClinicalTrials.gov web site, nearly 240 results popped up.

“There is a lot of research activity around this topic,” Dr. Adams, vice chair of the department of dermatology at the University of Nebraska Medical Center, said at the annual meeting of the American Academy of Dermatology. “We just don’t have fantastic, well-run trials on many of the currently available treatments.”

In a 2012 Cochrane review on the topical treatment of non-genital cutaneous warts, authors drew from 85 trials involving 8,815 randomized patients. They found that most warts spontaneously resolved, and the authors determined salicylic acid to be safe and modestly beneficial. Specifically, trials of salicylic acid (SA) versus placebo showed that the former significantly increased the chance of clearance of warts at all sites (risk ratio, 1.56, 95% confidence interval [CI], 1.20-2.03). A meta-analysis of cryotherapy versus placebo for warts at all sites favored neither intervention nor control (RR, 1.45, 95% CI, 0.65-3.23).

“The authors determined that there is less evidence for cryotherapy but stated that it may work when salicylic acid does not, or in combination with salicylic acid,” Dr. Adams said. “However, salicylic acid and cryotherapy don’t do enough for our patients [with warts]. There are a lot of situations where we need to reach further into the toolbox.”

A 2021 review article listed many options for managing difficult-to-treat warts, including intralesional Candida antigen, intralesional measles-mumps-rubella (MMR), intralesional HPV vaccine, intralesional vitamin D, intralesional cidofovir, intralesional bleomycin, and intralesional 5-FU injections, and topical vitamin D, topical cidofovir, and topical bleomycin. According to Dr. Adams, clinical data exist for cidofovir and vitamin D but studies evaluated different formulations, doses, sites of administration, and limited randomized controlled trials.

“Intralesional cidofovir is more effective than the topical form, but intralesional cidofovir can be painful and both forms are expensive,” she said. “Topical vitamin D is less likely to cause dyspigmentation compared to other available treatments, so it’s a great option in skin of color, but it has been less effective compared to some of our other topical treatments.”

Newer Options Promising

On the horizon, berdazimer gel was approved in January of 2024 for the treatment of molluscum but results from trials of its use for extragenital warts are encouraging. Another promising option is topical ionic contraviral therapy (ICVT) with digoxin and furosemide combined, which inhibits cellular potassium influx. A phase 2a randomized controlled trial of 80 adults found a statistically significant reduction in the diameter of cutaneous warts among those who received ICVT compared with those who received placebo (P = .002). “It’s cheap and well tolerated,” Dr. Adams added.

Intralesional approaches to treating warts offer another alternative. A 2020 review of 43 articles concluded that intralesional treatments for warts have equal or superior efficacy to first-line salicylic acid or cryotherapy.

Dr. Adams said that she considers intralesional treatments such as vitamin D, MMR vaccine antigen, and Candida antigen for refractory, numerous, or distant site warts. “Injecting the MMR vaccine into the largest wart every 2 weeks has been found to lead to complete clearance in 60%-68% of cases in one study,” she said. “The benefit is that it’s $21 per dose, which is nice, but as with any vaccination, patients can develop flu-like symptoms as side effects.”

Use of the HPV vaccine for treating cutaneous warts remains controversial, she continued, but it seems to work better in younger patients. In one open-label study that evaluated the HPV vaccine for the treatment of multiple recalcitrant warts, with doses administered at 0. 2, and 6 months, the response rate 3 months after the third dose was 55% among those older than age 26, compared with 84% among those ages 9-26 years.

Another option, intralesional cidofovir, has been shown to be especially effective for refractory warts. “It has also been shown to work for warts in immunocompetent and immunocompromised patients,” Dr. Adams said.

In the realm of adjuvant treatments, microneedling has been found to have similar efficacy to needling, Dr. Adams said, but with minimal pain. “When we combine it with topical treatments like 5-FU, it’s even more efficacious,” she said.

One study found that combining microneedling with topical 5-FU had clearance similar to that of intralesional 5-FU or microneedling alone, but involved fewer treatment sessions and less pain in the combination group.

Autoinoculation has been used to stimulate an immune response in patients with warts, leading to clearance rates of 4% (mild clearance) to 66% (complete clearance) in one study. “We would expect this to work better in immunocompetent patients, but it’s something to keep in mind if you’re limited in the medications you can get for a patient,” Dr. Adams said. Also, results from a systematic review and meta-analysis suggest that systemic retinoids combined with intralesional immunotherapy leads to higher clearance rates and lower rates of recurrence of warts. The top performer among those tested was acitretin plus Candida antigen.

Dr. Adams advised dermatologists who try alternatives to salicylic acid and cryotherapy for warts to be “wary of a lack of high-level evidence” for their use. “They can be helpful for patients who have failed traditional therapies or have a contraindication to the usual go-tos.”

She reported having no relevant financial disclosures.

Short-term exposure to high outdoor temperatures is associated with an increased inflammatory response and reduction in infection-fighting cells, new research showed.

In this study, blood work from volunteers was examined for immune biomarkers, and the findings mapped against environmental data.

“With rising global temperatures, the association between heat exposure and a temporarily weakened response from the immune system is a concern because temperature and humidity are known to be important environmental drivers of infectious, airborne disease transmission,” lead author Daniel W. Riggs, PhD, with the Christina Lee Brown Envirome Institute, University of Louisville in Louisville, Kentucky, said in a news release.

“In this study, even exposure to relatively modest increases in temperature were associated with acute changes in immune system functioning indexed by low-grade inflammation known to be linked to cardiovascular disorders, as well as potential secondary effects on the ability to optimally protect against infection,” said Rosalind J. Wright, MD, MPH, who wasn’t involved in the study.

“Further elucidation of the effects of both acute and more prolonged heat exposures (heat waves) on immune signaling will be important given potential broad health implications beyond the heart,” said Dr. Wright, dean of public health and professor and chair, Department of Public Health, Mount Sinai Health System.

The study was presented at the American Heart Association (AHA) Epidemiology and Prevention | Lifestyle and Cardiometabolic Scientific Sessions 2024.

High Temps Hard on Multiple Organs

Extreme-heat events have been shown to increase mortality, and excessive deaths due to heat waves are overwhelmingly cardiovascular in origin. Many prior studies only considered ambient temperature, which fails to capture the actual heat stress experienced by individuals, Dr. Riggs and colleagues wrote.

They designed their study to gauge how short-term heat exposures are related to markers of inflammation and the immune response.

They recruited 624 adults (mean age 49 years, 59% women) from a neighborhood in Louisville during the summer months, when median temperatures over 24 hours were 24.5 °C (76 °F).

They obtained blood samples to measure circulating cytokines and immune cells during clinic visits. Heat metrics, collected on the same day as blood draws, included 24-hour averages of temperature, net effective temperature, and the Universal Thermal Climate Index (UTCI), a metric that incorporates temperature, humidity, wind speed, and ultraviolet radiation, to determine the physiological comfort of the human body under specific weather conditions.

The results were adjusted for multiple factors, including sex, age, race, education, body mass index, smoking status, anti-inflammatory medication use, and daily air pollution (PM 2.5).

In adjusted analyses, for every five-degree increase in UTCI, there was an increase in levels of several inflammatory markers, including monocytes (4.2%), eosinophils (9.5%), natural killer T cells (9.9%), and tumor necrosis factor-alpha (7.0%) and a decrease in infection-fighting B cells (−6.8%).

Study Raises Important Questions

“We’re finding that heat is associated with health effects across a wide range of organ systems and outcomes, but this study helps start to get at the ‘how,’” said Perry E. Sheffield, MD, MPH, with the Departments of Pediatrics and Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai in New York City, who wasn’t involved in the study.

Dr. Sheffield said the study raises “important questions like, Does the timing of heat exposure matter (going in and out of air-conditioned spaces for example)? and Could some people be more vulnerable than others based on things like what they eat, whether they exercise, or their genetics?”

The study comes on the heels of a report released earlier this month from the World Meteorological Organization noting that climate change indicators reached record levels in 2023.

“The most critical challenges facing medicine are occurring at the intersection of climate and health, underscoring the urgent need to understand how climate-related factors, such as exposure to more extreme temperatures, shift key regulatory systems in our bodies to contribute to disease,” Dr. Wright told this news organization.

The study was supported by grants from the National Institute of Environmental Health Sciences. Dr. Riggs, Dr. Wright, and Sheffield had no relevant disclosures.

A version of this article appeared on Medscape.com.

Short-term exposure to high outdoor temperatures is associated with an increased inflammatory response and reduction in infection-fighting cells, new research showed.

In this study, blood work from volunteers was examined for immune biomarkers, and the findings mapped against environmental data.

“With rising global temperatures, the association between heat exposure and a temporarily weakened response from the immune system is a concern because temperature and humidity are known to be important environmental drivers of infectious, airborne disease transmission,” lead author Daniel W. Riggs, PhD, with the Christina Lee Brown Envirome Institute, University of Louisville in Louisville, Kentucky, said in a news release.

“In this study, even exposure to relatively modest increases in temperature were associated with acute changes in immune system functioning indexed by low-grade inflammation known to be linked to cardiovascular disorders, as well as potential secondary effects on the ability to optimally protect against infection,” said Rosalind J. Wright, MD, MPH, who wasn’t involved in the study.

“Further elucidation of the effects of both acute and more prolonged heat exposures (heat waves) on immune signaling will be important given potential broad health implications beyond the heart,” said Dr. Wright, dean of public health and professor and chair, Department of Public Health, Mount Sinai Health System.

The study was presented at the American Heart Association (AHA) Epidemiology and Prevention | Lifestyle and Cardiometabolic Scientific Sessions 2024.

High Temps Hard on Multiple Organs

Extreme-heat events have been shown to increase mortality, and excessive deaths due to heat waves are overwhelmingly cardiovascular in origin. Many prior studies only considered ambient temperature, which fails to capture the actual heat stress experienced by individuals, Dr. Riggs and colleagues wrote.

They designed their study to gauge how short-term heat exposures are related to markers of inflammation and the immune response.

They recruited 624 adults (mean age 49 years, 59% women) from a neighborhood in Louisville during the summer months, when median temperatures over 24 hours were 24.5 °C (76 °F).

They obtained blood samples to measure circulating cytokines and immune cells during clinic visits. Heat metrics, collected on the same day as blood draws, included 24-hour averages of temperature, net effective temperature, and the Universal Thermal Climate Index (UTCI), a metric that incorporates temperature, humidity, wind speed, and ultraviolet radiation, to determine the physiological comfort of the human body under specific weather conditions.

The results were adjusted for multiple factors, including sex, age, race, education, body mass index, smoking status, anti-inflammatory medication use, and daily air pollution (PM 2.5).

In adjusted analyses, for every five-degree increase in UTCI, there was an increase in levels of several inflammatory markers, including monocytes (4.2%), eosinophils (9.5%), natural killer T cells (9.9%), and tumor necrosis factor-alpha (7.0%) and a decrease in infection-fighting B cells (−6.8%).

Study Raises Important Questions

“We’re finding that heat is associated with health effects across a wide range of organ systems and outcomes, but this study helps start to get at the ‘how,’” said Perry E. Sheffield, MD, MPH, with the Departments of Pediatrics and Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai in New York City, who wasn’t involved in the study.

Dr. Sheffield said the study raises “important questions like, Does the timing of heat exposure matter (going in and out of air-conditioned spaces for example)? and Could some people be more vulnerable than others based on things like what they eat, whether they exercise, or their genetics?”

The study comes on the heels of a report released earlier this month from the World Meteorological Organization noting that climate change indicators reached record levels in 2023.

“The most critical challenges facing medicine are occurring at the intersection of climate and health, underscoring the urgent need to understand how climate-related factors, such as exposure to more extreme temperatures, shift key regulatory systems in our bodies to contribute to disease,” Dr. Wright told this news organization.

The study was supported by grants from the National Institute of Environmental Health Sciences. Dr. Riggs, Dr. Wright, and Sheffield had no relevant disclosures.

A version of this article appeared on Medscape.com.

Short-term exposure to high outdoor temperatures is associated with an increased inflammatory response and reduction in infection-fighting cells, new research showed.

In this study, blood work from volunteers was examined for immune biomarkers, and the findings mapped against environmental data.

“With rising global temperatures, the association between heat exposure and a temporarily weakened response from the immune system is a concern because temperature and humidity are known to be important environmental drivers of infectious, airborne disease transmission,” lead author Daniel W. Riggs, PhD, with the Christina Lee Brown Envirome Institute, University of Louisville in Louisville, Kentucky, said in a news release.

“In this study, even exposure to relatively modest increases in temperature were associated with acute changes in immune system functioning indexed by low-grade inflammation known to be linked to cardiovascular disorders, as well as potential secondary effects on the ability to optimally protect against infection,” said Rosalind J. Wright, MD, MPH, who wasn’t involved in the study.

“Further elucidation of the effects of both acute and more prolonged heat exposures (heat waves) on immune signaling will be important given potential broad health implications beyond the heart,” said Dr. Wright, dean of public health and professor and chair, Department of Public Health, Mount Sinai Health System.

The study was presented at the American Heart Association (AHA) Epidemiology and Prevention | Lifestyle and Cardiometabolic Scientific Sessions 2024.

High Temps Hard on Multiple Organs

Extreme-heat events have been shown to increase mortality, and excessive deaths due to heat waves are overwhelmingly cardiovascular in origin. Many prior studies only considered ambient temperature, which fails to capture the actual heat stress experienced by individuals, Dr. Riggs and colleagues wrote.

They designed their study to gauge how short-term heat exposures are related to markers of inflammation and the immune response.

They recruited 624 adults (mean age 49 years, 59% women) from a neighborhood in Louisville during the summer months, when median temperatures over 24 hours were 24.5 °C (76 °F).

They obtained blood samples to measure circulating cytokines and immune cells during clinic visits. Heat metrics, collected on the same day as blood draws, included 24-hour averages of temperature, net effective temperature, and the Universal Thermal Climate Index (UTCI), a metric that incorporates temperature, humidity, wind speed, and ultraviolet radiation, to determine the physiological comfort of the human body under specific weather conditions.

The results were adjusted for multiple factors, including sex, age, race, education, body mass index, smoking status, anti-inflammatory medication use, and daily air pollution (PM 2.5).

In adjusted analyses, for every five-degree increase in UTCI, there was an increase in levels of several inflammatory markers, including monocytes (4.2%), eosinophils (9.5%), natural killer T cells (9.9%), and tumor necrosis factor-alpha (7.0%) and a decrease in infection-fighting B cells (−6.8%).

Study Raises Important Questions

“We’re finding that heat is associated with health effects across a wide range of organ systems and outcomes, but this study helps start to get at the ‘how,’” said Perry E. Sheffield, MD, MPH, with the Departments of Pediatrics and Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai in New York City, who wasn’t involved in the study.

Dr. Sheffield said the study raises “important questions like, Does the timing of heat exposure matter (going in and out of air-conditioned spaces for example)? and Could some people be more vulnerable than others based on things like what they eat, whether they exercise, or their genetics?”

The study comes on the heels of a report released earlier this month from the World Meteorological Organization noting that climate change indicators reached record levels in 2023.

“The most critical challenges facing medicine are occurring at the intersection of climate and health, underscoring the urgent need to understand how climate-related factors, such as exposure to more extreme temperatures, shift key regulatory systems in our bodies to contribute to disease,” Dr. Wright told this news organization.

The study was supported by grants from the National Institute of Environmental Health Sciences. Dr. Riggs, Dr. Wright, and Sheffield had no relevant disclosures.

A version of this article appeared on Medscape.com.

Can brown fat tissue be targeted for fat burning? Current findings on this topic were presented at the 67th German Congress of Endocrinology. Some statistics highlighted the need. Approximately 53% of the German population (almost 47% of women and 60% of men) are overweight (including obesity). Obesity is present in 19% of adults. The condition not only results in a shorter life expectancy but also increases the risk for cancer, diabetes, and cardiovascular diseases.

“The current treatment focuses on reducing energy intake, for example, through GLP-1 [glucagon-like peptide 1] agonists, which induce a feeling of satiety and significantly reduce body weight,” explained PD Tim Hollstein, MD, of the Institute of Diabetes and Clinical Metabolic Research at the University Hospital Schleswig-Holstein in Kiel, Germany. But the effect of weight loss injections only lasts for the duration of their application, and they are expensive.

“A potentially more sustainable treatment option would be to increase energy expenditure,” said Dr. Hollstein. He explained the role of brown fat tissue at a press conference for the German Society of Endocrinology (DGE) Congress.

While white fat tissue stores energy and can make up to 50% of a person’s body mass, brown fat tissue (brown adipose tissue [BAT]) burns energy to generate heat. The many mitochondria in brown fat tissue give it its characteristic brown color. “Brown fat tissue is like a heater for our body and kicks in when we are cold,” said Dr. Hollstein.

Brown fat tissue is primarily found in babies who cannot generate heat through muscle shivering. It has only been known for about 15 years that adults also possess brown fat. PET scans have shown that women generally have a higher amount of BAT and a higher energy intake capacity. The chance of discovering brown fat tissue was lower in older patients (P < .001), at higher outside temperatures (P = .02), in older patients with higher body mass index (P = .007), and if the patients were taking beta-blockers (P < .001).

Two Metabolic Types

An average person has about 100-300 g of brown fat tissue, mainly around the neck and collarbone and along the spine. Interestingly, just 50 g of active BAT can burn up to 300 kcal/d. “That’s roughly equivalent to a chocolate brownie,” said Dr. Hollstein. Lean individuals have more active BAT than overweight people, suggesting that BAT plays a role in our body weight.

In addition to its “heating function,” BAT also produces hormones, so-called “batokines,” which influence metabolism and organs such as the heart and liver. An example of a batokine is the hormone fibroblast growth factor 21, which promotes fat burning in the liver and can protect against fatty liver.

Recent studies have shown that BAT is activated not only by cold but also by food intake. BAT thus contributes to so-called “diet-induced thermogenesis,” which is the energy the body needs for digestion. Some people have a higher digestive energy than others, despite having the same food intake. They burn excess calories and can thus protect themselves from being overweight.

“There are people who have a more wasteful metabolism and people who have a more economical metabolic type, meaning they have less brown fat,” explained Dr. Hollstein. Interestingly, BAT also seems to induce a feeling of satiety in the brain, which could be significant for regulating food intake.
 

Activating Brown Fat

According to Dr. Hollstein, batokines probably have diverse effects and influence not only satiety and inflammatory processes but also cardiovascular diseases, diabetes, and fatty liver. It is important to research what distinguishes patients who have a lot of brown fat tissue from those who have little.

BAT can be trained and increased through regular cold exposure, which subsequently melts body fat. In a Japanese study, acute cold exposure (19 °C) for 2 hours increased energy consumption. Cold-induced increases in energy consumption correlated strongly with BAT activity, regardless of age and fat-free mass. Daily 2-hour cold exposure at 17 °C for 6 weeks led to a parallel increase in BAT activity.

“You can train brown fat tissue through cold exposure, which also leads to improvements in metabolism and a slight loss of fat mass, but the effect is very small,” explained Dr. Hollstein. The changes in metabolism are significant. Blood lipid levels improve, insulin sensitivity increases, and inflammation values decrease, according to Dr. Hollstein.

Evidence also indicates that capsaicin contained in chili peppers can activate brown fat tissue. However, the effects are small, and so far, there is no evidence that consumption can help with weight loss.
 

Medications Activate Brown Fat

Because permanent cold and daily consumption of chili peppers are not a real option, especially because the effects on BAT are rather small, research is being conducted to find drugs that activate brown fat tissue.

Preliminary results come from the United States. Mirabegron, originally developed for an overactive bladder, can selectively activate BAT and boost metabolism. A single injection of mirabegron activated BAT and increased energy consumption in the short term. Plasma levels of high-density lipoproteins cholesterol and apolipoprotein A1 increased, as did the total amount of bile acids.

The hormone adiponectin, which has antidiabetic and anti-inflammatory properties, also increased and was 35% higher after the study’s completion. An intravenous glucose tolerance test showed higher insulin sensitivity, glucose efficiency, and insulin secretion.

After 4 weeks of therapy in healthy women, brown fat tissue increased, but the participants did not lose weight or body fat.

New studies have also identified the widely used drug salbutamol as a BAT activator. However, the problem with both drugs is that they have side effects such as a faster heartbeat and increased blood pressure.

As Dr. Hollstein reported, attempts have also been made to transplant brown fat tissue into overweight mice. However, in most cases, the brown fat tissue was converted into white fat.

In Dr. Hollstein’s estimation, BAT offers enormous potential in the treatment of obesity and related metabolic diseases, and its activation could make a significant contribution to combating the obesity epidemic. “I believe that brown fat tissue will occupy us even more in the future. In combination with weight loss injections, increased energy consumption through brown fat tissue could have synergistic effects,” he concluded.

This story was translated from the Medscape German edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

Can brown fat tissue be targeted for fat burning? Current findings on this topic were presented at the 67th German Congress of Endocrinology. Some statistics highlighted the need. Approximately 53% of the German population (almost 47% of women and 60% of men) are overweight (including obesity). Obesity is present in 19% of adults. The condition not only results in a shorter life expectancy but also increases the risk for cancer, diabetes, and cardiovascular diseases.

“The current treatment focuses on reducing energy intake, for example, through GLP-1 [glucagon-like peptide 1] agonists, which induce a feeling of satiety and significantly reduce body weight,” explained PD Tim Hollstein, MD, of the Institute of Diabetes and Clinical Metabolic Research at the University Hospital Schleswig-Holstein in Kiel, Germany. But the effect of weight loss injections only lasts for the duration of their application, and they are expensive.

“A potentially more sustainable treatment option would be to increase energy expenditure,” said Dr. Hollstein. He explained the role of brown fat tissue at a press conference for the German Society of Endocrinology (DGE) Congress.

While white fat tissue stores energy and can make up to 50% of a person’s body mass, brown fat tissue (brown adipose tissue [BAT]) burns energy to generate heat. The many mitochondria in brown fat tissue give it its characteristic brown color. “Brown fat tissue is like a heater for our body and kicks in when we are cold,” said Dr. Hollstein.

Brown fat tissue is primarily found in babies who cannot generate heat through muscle shivering. It has only been known for about 15 years that adults also possess brown fat. PET scans have shown that women generally have a higher amount of BAT and a higher energy intake capacity. The chance of discovering brown fat tissue was lower in older patients (P < .001), at higher outside temperatures (P = .02), in older patients with higher body mass index (P = .007), and if the patients were taking beta-blockers (P < .001).

Two Metabolic Types

An average person has about 100-300 g of brown fat tissue, mainly around the neck and collarbone and along the spine. Interestingly, just 50 g of active BAT can burn up to 300 kcal/d. “That’s roughly equivalent to a chocolate brownie,” said Dr. Hollstein. Lean individuals have more active BAT than overweight people, suggesting that BAT plays a role in our body weight.

In addition to its “heating function,” BAT also produces hormones, so-called “batokines,” which influence metabolism and organs such as the heart and liver. An example of a batokine is the hormone fibroblast growth factor 21, which promotes fat burning in the liver and can protect against fatty liver.

Recent studies have shown that BAT is activated not only by cold but also by food intake. BAT thus contributes to so-called “diet-induced thermogenesis,” which is the energy the body needs for digestion. Some people have a higher digestive energy than others, despite having the same food intake. They burn excess calories and can thus protect themselves from being overweight.

“There are people who have a more wasteful metabolism and people who have a more economical metabolic type, meaning they have less brown fat,” explained Dr. Hollstein. Interestingly, BAT also seems to induce a feeling of satiety in the brain, which could be significant for regulating food intake.
 

Activating Brown Fat

According to Dr. Hollstein, batokines probably have diverse effects and influence not only satiety and inflammatory processes but also cardiovascular diseases, diabetes, and fatty liver. It is important to research what distinguishes patients who have a lot of brown fat tissue from those who have little.

BAT can be trained and increased through regular cold exposure, which subsequently melts body fat. In a Japanese study, acute cold exposure (19 °C) for 2 hours increased energy consumption. Cold-induced increases in energy consumption correlated strongly with BAT activity, regardless of age and fat-free mass. Daily 2-hour cold exposure at 17 °C for 6 weeks led to a parallel increase in BAT activity.

“You can train brown fat tissue through cold exposure, which also leads to improvements in metabolism and a slight loss of fat mass, but the effect is very small,” explained Dr. Hollstein. The changes in metabolism are significant. Blood lipid levels improve, insulin sensitivity increases, and inflammation values decrease, according to Dr. Hollstein.

Evidence also indicates that capsaicin contained in chili peppers can activate brown fat tissue. However, the effects are small, and so far, there is no evidence that consumption can help with weight loss.
 

Medications Activate Brown Fat

Because permanent cold and daily consumption of chili peppers are not a real option, especially because the effects on BAT are rather small, research is being conducted to find drugs that activate brown fat tissue.

Preliminary results come from the United States. Mirabegron, originally developed for an overactive bladder, can selectively activate BAT and boost metabolism. A single injection of mirabegron activated BAT and increased energy consumption in the short term. Plasma levels of high-density lipoproteins cholesterol and apolipoprotein A1 increased, as did the total amount of bile acids.

The hormone adiponectin, which has antidiabetic and anti-inflammatory properties, also increased and was 35% higher after the study’s completion. An intravenous glucose tolerance test showed higher insulin sensitivity, glucose efficiency, and insulin secretion.

After 4 weeks of therapy in healthy women, brown fat tissue increased, but the participants did not lose weight or body fat.

New studies have also identified the widely used drug salbutamol as a BAT activator. However, the problem with both drugs is that they have side effects such as a faster heartbeat and increased blood pressure.

As Dr. Hollstein reported, attempts have also been made to transplant brown fat tissue into overweight mice. However, in most cases, the brown fat tissue was converted into white fat.

In Dr. Hollstein’s estimation, BAT offers enormous potential in the treatment of obesity and related metabolic diseases, and its activation could make a significant contribution to combating the obesity epidemic. “I believe that brown fat tissue will occupy us even more in the future. In combination with weight loss injections, increased energy consumption through brown fat tissue could have synergistic effects,” he concluded.

This story was translated from the Medscape German edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

Can brown fat tissue be targeted for fat burning? Current findings on this topic were presented at the 67th German Congress of Endocrinology. Some statistics highlighted the need. Approximately 53% of the German population (almost 47% of women and 60% of men) are overweight (including obesity). Obesity is present in 19% of adults. The condition not only results in a shorter life expectancy but also increases the risk for cancer, diabetes, and cardiovascular diseases.

“The current treatment focuses on reducing energy intake, for example, through GLP-1 [glucagon-like peptide 1] agonists, which induce a feeling of satiety and significantly reduce body weight,” explained PD Tim Hollstein, MD, of the Institute of Diabetes and Clinical Metabolic Research at the University Hospital Schleswig-Holstein in Kiel, Germany. But the effect of weight loss injections only lasts for the duration of their application, and they are expensive.

“A potentially more sustainable treatment option would be to increase energy expenditure,” said Dr. Hollstein. He explained the role of brown fat tissue at a press conference for the German Society of Endocrinology (DGE) Congress.

While white fat tissue stores energy and can make up to 50% of a person’s body mass, brown fat tissue (brown adipose tissue [BAT]) burns energy to generate heat. The many mitochondria in brown fat tissue give it its characteristic brown color. “Brown fat tissue is like a heater for our body and kicks in when we are cold,” said Dr. Hollstein.

Brown fat tissue is primarily found in babies who cannot generate heat through muscle shivering. It has only been known for about 15 years that adults also possess brown fat. PET scans have shown that women generally have a higher amount of BAT and a higher energy intake capacity. The chance of discovering brown fat tissue was lower in older patients (P < .001), at higher outside temperatures (P = .02), in older patients with higher body mass index (P = .007), and if the patients were taking beta-blockers (P < .001).

Two Metabolic Types

An average person has about 100-300 g of brown fat tissue, mainly around the neck and collarbone and along the spine. Interestingly, just 50 g of active BAT can burn up to 300 kcal/d. “That’s roughly equivalent to a chocolate brownie,” said Dr. Hollstein. Lean individuals have more active BAT than overweight people, suggesting that BAT plays a role in our body weight.

In addition to its “heating function,” BAT also produces hormones, so-called “batokines,” which influence metabolism and organs such as the heart and liver. An example of a batokine is the hormone fibroblast growth factor 21, which promotes fat burning in the liver and can protect against fatty liver.

Recent studies have shown that BAT is activated not only by cold but also by food intake. BAT thus contributes to so-called “diet-induced thermogenesis,” which is the energy the body needs for digestion. Some people have a higher digestive energy than others, despite having the same food intake. They burn excess calories and can thus protect themselves from being overweight.

“There are people who have a more wasteful metabolism and people who have a more economical metabolic type, meaning they have less brown fat,” explained Dr. Hollstein. Interestingly, BAT also seems to induce a feeling of satiety in the brain, which could be significant for regulating food intake.
 

Activating Brown Fat

According to Dr. Hollstein, batokines probably have diverse effects and influence not only satiety and inflammatory processes but also cardiovascular diseases, diabetes, and fatty liver. It is important to research what distinguishes patients who have a lot of brown fat tissue from those who have little.

BAT can be trained and increased through regular cold exposure, which subsequently melts body fat. In a Japanese study, acute cold exposure (19 °C) for 2 hours increased energy consumption. Cold-induced increases in energy consumption correlated strongly with BAT activity, regardless of age and fat-free mass. Daily 2-hour cold exposure at 17 °C for 6 weeks led to a parallel increase in BAT activity.

“You can train brown fat tissue through cold exposure, which also leads to improvements in metabolism and a slight loss of fat mass, but the effect is very small,” explained Dr. Hollstein. The changes in metabolism are significant. Blood lipid levels improve, insulin sensitivity increases, and inflammation values decrease, according to Dr. Hollstein.

Evidence also indicates that capsaicin contained in chili peppers can activate brown fat tissue. However, the effects are small, and so far, there is no evidence that consumption can help with weight loss.
 

Medications Activate Brown Fat

Because permanent cold and daily consumption of chili peppers are not a real option, especially because the effects on BAT are rather small, research is being conducted to find drugs that activate brown fat tissue.

Preliminary results come from the United States. Mirabegron, originally developed for an overactive bladder, can selectively activate BAT and boost metabolism. A single injection of mirabegron activated BAT and increased energy consumption in the short term. Plasma levels of high-density lipoproteins cholesterol and apolipoprotein A1 increased, as did the total amount of bile acids.

The hormone adiponectin, which has antidiabetic and anti-inflammatory properties, also increased and was 35% higher after the study’s completion. An intravenous glucose tolerance test showed higher insulin sensitivity, glucose efficiency, and insulin secretion.

After 4 weeks of therapy in healthy women, brown fat tissue increased, but the participants did not lose weight or body fat.

New studies have also identified the widely used drug salbutamol as a BAT activator. However, the problem with both drugs is that they have side effects such as a faster heartbeat and increased blood pressure.

As Dr. Hollstein reported, attempts have also been made to transplant brown fat tissue into overweight mice. However, in most cases, the brown fat tissue was converted into white fat.

In Dr. Hollstein’s estimation, BAT offers enormous potential in the treatment of obesity and related metabolic diseases, and its activation could make a significant contribution to combating the obesity epidemic. “I believe that brown fat tissue will occupy us even more in the future. In combination with weight loss injections, increased energy consumption through brown fat tissue could have synergistic effects,” he concluded.

This story was translated from the Medscape German edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.