Federal Practitioner

A new way of using artificial intelligence (AI) can predict breast cancer 5 years in advance with impressive accuracy — and unlike previous AI models, we know how this one works.

The new AI system, called AsymMirai, simplifies previous models by solely comparing differences between right and left breasts to predict risk. It could potentially save lives, prevent unnecessary testing, and save the healthcare system money, its creators say.

“With traditional AI, you ask it a question and it spits out an answer, but no one really knows how it makes its decisions. It’s a black box,” said Jon Donnelly, a PhD student in the department of computer science at Duke University, Durham, North Carolina, and first author on a new paper in Radiology describing the model.

“With our approach, people know how the algorithm comes up with its output so they can fact-check it and trust it,” he said.

One in eight women will develop invasive breast cancer, and 1 in 39 will die from it. Mammograms miss about 20% of breast cancers. (The shortcomings of genetic screening and mammograms received extra attention recently when actress Olivia Munn disclosed that she’d been treated for an aggressive form of breast cancer despite a normal mammogram and a negative genetic test.)

The model could help doctors bring the often-abstract idea of AI to the bedside in a meaningful way, said radiologist Vivianne Freitas, MD, assistant professor of medical imaging at the University of Toronto.

“This marks a new chapter in the field of AI,” said Dr. Freitas, who authored an editorial lauding the new paper. “It makes AI more tangible and understandable, thereby improving its potential for acceptance.”
 

AI as a Second Set of Eyes

Mr. Donnelly described AsymMirai as a simpler, more transparent, and easier-to-use version of Mirai, a breakthrough AI model which made headlines in 2021 with its promise to determine with unprecedented accuracy whether a patient is likely to get breast cancer within the next 5 years.

Mirai identified up to twice as many future cancer diagnoses as the conventional risk calculator Tyrer-Cuzick. It also maintained accuracy across a diverse set of patients — a notable plus for two fields (AI and healthcare) notorious for delivering poorer results for minorities.

Tyrer-Cuzick and other lower-tech risk calculators use personal and family history to statistically calculate risk. Mirai, on the other hand, analyzes countless bits of raw data embedded in a mammogram to decipher patterns a radiologist’s eyes may not catch. Four images, including two angles from each breast, are fed into the model, which produces a score between 0 and 1 to indicate the person’s risk of getting breast cancer in 1, 3, or 5 years.

But even Mirai’s creators have conceded they didn’t know exactly how it arrives at that score — a fact that has fueled hesitancy among clinicians.

Study coauthor Fides Schwartz, MD, a radiologist at Brigham and Women’s Hospital, Boston, said researchers were able to crack the code on Mirai’s “black box,” finding that its scores were largely determined by assessing subtle differences between right breast tissue and left breast tissue.

Knowing this, the research team simplified the model to predict risk based solely on “local bilateral dissimilarity.” AsymMirai was born.

The team then used AsymMirai to look back at > 200,000 mammograms from nearly 82,000 patients. They found it worked nearly as well as its predecessor, assigning a higher risk to those who would go on to develop cancer 66% of the time (vs Mirai’s 71%). In patients where it noticed the same asymmetry multiple years in a row it worked even better, with an 88% chance of giving people who would develop cancer later a higher score than those who would not.

“We found that we can, with surprisingly high accuracy, predict whether a woman will develop cancer in the next 1-5 years based solely on localized differences between her left and right breast tissue,” said Mr. Donnelly.

Dr. Schwartz imagines a day when radiologists could use the model to help develop personalized screening strategies for patients. Doctors might advise those with higher scores to get screened more often than guidelines suggest, supplement mammograms with an MRI , and keep a close watch on trouble spots identified by AI.

“For people with really low risk, on the other hand, maybe we can save them an annual exam that’s not super pleasant and might not be necessary,” said Dr. Schwartz.
 

Cautious Optimism

Robert Smith, PhD, senior vice president of early cancer detection science at the American Cancer Society, noted that AI has been used for decades to try to reduce radiologists’ workload and improve diagnoses.

“But AI just never really lived up to its fullest potential,” Dr. Smith said, “quite often because it was being used as a crutch by inexperienced radiologists who, instead of interpreting the mammogram and then seeing what AI had to say ended up letting AI do most of the work which, frankly, just wasn’t that accurate.”

He’s hopeful that newer, more sophisticated iterations of AI medical imaging platforms (roughly 18-20 models are in development) can ultimately save women’s lives, particularly in areas where radiologists are in short supply.

But he believes it will be a long time before doctors, or their patients, are willing to risk postponing a mammogram based on an algorithm.
 

A version of this article appeared on Medscape.com.

A new way of using artificial intelligence (AI) can predict breast cancer 5 years in advance with impressive accuracy — and unlike previous AI models, we know how this one works.

The new AI system, called AsymMirai, simplifies previous models by solely comparing differences between right and left breasts to predict risk. It could potentially save lives, prevent unnecessary testing, and save the healthcare system money, its creators say.

“With traditional AI, you ask it a question and it spits out an answer, but no one really knows how it makes its decisions. It’s a black box,” said Jon Donnelly, a PhD student in the department of computer science at Duke University, Durham, North Carolina, and first author on a new paper in Radiology describing the model.

“With our approach, people know how the algorithm comes up with its output so they can fact-check it and trust it,” he said.

One in eight women will develop invasive breast cancer, and 1 in 39 will die from it. Mammograms miss about 20% of breast cancers. (The shortcomings of genetic screening and mammograms received extra attention recently when actress Olivia Munn disclosed that she’d been treated for an aggressive form of breast cancer despite a normal mammogram and a negative genetic test.)

The model could help doctors bring the often-abstract idea of AI to the bedside in a meaningful way, said radiologist Vivianne Freitas, MD, assistant professor of medical imaging at the University of Toronto.

“This marks a new chapter in the field of AI,” said Dr. Freitas, who authored an editorial lauding the new paper. “It makes AI more tangible and understandable, thereby improving its potential for acceptance.”
 

AI as a Second Set of Eyes

Mr. Donnelly described AsymMirai as a simpler, more transparent, and easier-to-use version of Mirai, a breakthrough AI model which made headlines in 2021 with its promise to determine with unprecedented accuracy whether a patient is likely to get breast cancer within the next 5 years.

Mirai identified up to twice as many future cancer diagnoses as the conventional risk calculator Tyrer-Cuzick. It also maintained accuracy across a diverse set of patients — a notable plus for two fields (AI and healthcare) notorious for delivering poorer results for minorities.

Tyrer-Cuzick and other lower-tech risk calculators use personal and family history to statistically calculate risk. Mirai, on the other hand, analyzes countless bits of raw data embedded in a mammogram to decipher patterns a radiologist’s eyes may not catch. Four images, including two angles from each breast, are fed into the model, which produces a score between 0 and 1 to indicate the person’s risk of getting breast cancer in 1, 3, or 5 years.

But even Mirai’s creators have conceded they didn’t know exactly how it arrives at that score — a fact that has fueled hesitancy among clinicians.

Study coauthor Fides Schwartz, MD, a radiologist at Brigham and Women’s Hospital, Boston, said researchers were able to crack the code on Mirai’s “black box,” finding that its scores were largely determined by assessing subtle differences between right breast tissue and left breast tissue.

Knowing this, the research team simplified the model to predict risk based solely on “local bilateral dissimilarity.” AsymMirai was born.

The team then used AsymMirai to look back at > 200,000 mammograms from nearly 82,000 patients. They found it worked nearly as well as its predecessor, assigning a higher risk to those who would go on to develop cancer 66% of the time (vs Mirai’s 71%). In patients where it noticed the same asymmetry multiple years in a row it worked even better, with an 88% chance of giving people who would develop cancer later a higher score than those who would not.

“We found that we can, with surprisingly high accuracy, predict whether a woman will develop cancer in the next 1-5 years based solely on localized differences between her left and right breast tissue,” said Mr. Donnelly.

Dr. Schwartz imagines a day when radiologists could use the model to help develop personalized screening strategies for patients. Doctors might advise those with higher scores to get screened more often than guidelines suggest, supplement mammograms with an MRI , and keep a close watch on trouble spots identified by AI.

“For people with really low risk, on the other hand, maybe we can save them an annual exam that’s not super pleasant and might not be necessary,” said Dr. Schwartz.
 

Cautious Optimism

Robert Smith, PhD, senior vice president of early cancer detection science at the American Cancer Society, noted that AI has been used for decades to try to reduce radiologists’ workload and improve diagnoses.

“But AI just never really lived up to its fullest potential,” Dr. Smith said, “quite often because it was being used as a crutch by inexperienced radiologists who, instead of interpreting the mammogram and then seeing what AI had to say ended up letting AI do most of the work which, frankly, just wasn’t that accurate.”

He’s hopeful that newer, more sophisticated iterations of AI medical imaging platforms (roughly 18-20 models are in development) can ultimately save women’s lives, particularly in areas where radiologists are in short supply.

But he believes it will be a long time before doctors, or their patients, are willing to risk postponing a mammogram based on an algorithm.
 

A version of this article appeared on Medscape.com.

A new way of using artificial intelligence (AI) can predict breast cancer 5 years in advance with impressive accuracy — and unlike previous AI models, we know how this one works.

The new AI system, called AsymMirai, simplifies previous models by solely comparing differences between right and left breasts to predict risk. It could potentially save lives, prevent unnecessary testing, and save the healthcare system money, its creators say.

“With traditional AI, you ask it a question and it spits out an answer, but no one really knows how it makes its decisions. It’s a black box,” said Jon Donnelly, a PhD student in the department of computer science at Duke University, Durham, North Carolina, and first author on a new paper in Radiology describing the model.

“With our approach, people know how the algorithm comes up with its output so they can fact-check it and trust it,” he said.

One in eight women will develop invasive breast cancer, and 1 in 39 will die from it. Mammograms miss about 20% of breast cancers. (The shortcomings of genetic screening and mammograms received extra attention recently when actress Olivia Munn disclosed that she’d been treated for an aggressive form of breast cancer despite a normal mammogram and a negative genetic test.)

The model could help doctors bring the often-abstract idea of AI to the bedside in a meaningful way, said radiologist Vivianne Freitas, MD, assistant professor of medical imaging at the University of Toronto.

“This marks a new chapter in the field of AI,” said Dr. Freitas, who authored an editorial lauding the new paper. “It makes AI more tangible and understandable, thereby improving its potential for acceptance.”
 

AI as a Second Set of Eyes

Mr. Donnelly described AsymMirai as a simpler, more transparent, and easier-to-use version of Mirai, a breakthrough AI model which made headlines in 2021 with its promise to determine with unprecedented accuracy whether a patient is likely to get breast cancer within the next 5 years.

Mirai identified up to twice as many future cancer diagnoses as the conventional risk calculator Tyrer-Cuzick. It also maintained accuracy across a diverse set of patients — a notable plus for two fields (AI and healthcare) notorious for delivering poorer results for minorities.

Tyrer-Cuzick and other lower-tech risk calculators use personal and family history to statistically calculate risk. Mirai, on the other hand, analyzes countless bits of raw data embedded in a mammogram to decipher patterns a radiologist’s eyes may not catch. Four images, including two angles from each breast, are fed into the model, which produces a score between 0 and 1 to indicate the person’s risk of getting breast cancer in 1, 3, or 5 years.

But even Mirai’s creators have conceded they didn’t know exactly how it arrives at that score — a fact that has fueled hesitancy among clinicians.

Study coauthor Fides Schwartz, MD, a radiologist at Brigham and Women’s Hospital, Boston, said researchers were able to crack the code on Mirai’s “black box,” finding that its scores were largely determined by assessing subtle differences between right breast tissue and left breast tissue.

Knowing this, the research team simplified the model to predict risk based solely on “local bilateral dissimilarity.” AsymMirai was born.

The team then used AsymMirai to look back at > 200,000 mammograms from nearly 82,000 patients. They found it worked nearly as well as its predecessor, assigning a higher risk to those who would go on to develop cancer 66% of the time (vs Mirai’s 71%). In patients where it noticed the same asymmetry multiple years in a row it worked even better, with an 88% chance of giving people who would develop cancer later a higher score than those who would not.

“We found that we can, with surprisingly high accuracy, predict whether a woman will develop cancer in the next 1-5 years based solely on localized differences between her left and right breast tissue,” said Mr. Donnelly.

Dr. Schwartz imagines a day when radiologists could use the model to help develop personalized screening strategies for patients. Doctors might advise those with higher scores to get screened more often than guidelines suggest, supplement mammograms with an MRI , and keep a close watch on trouble spots identified by AI.

“For people with really low risk, on the other hand, maybe we can save them an annual exam that’s not super pleasant and might not be necessary,” said Dr. Schwartz.
 

Cautious Optimism

Robert Smith, PhD, senior vice president of early cancer detection science at the American Cancer Society, noted that AI has been used for decades to try to reduce radiologists’ workload and improve diagnoses.

“But AI just never really lived up to its fullest potential,” Dr. Smith said, “quite often because it was being used as a crutch by inexperienced radiologists who, instead of interpreting the mammogram and then seeing what AI had to say ended up letting AI do most of the work which, frankly, just wasn’t that accurate.”

He’s hopeful that newer, more sophisticated iterations of AI medical imaging platforms (roughly 18-20 models are in development) can ultimately save women’s lives, particularly in areas where radiologists are in short supply.

But he believes it will be a long time before doctors, or their patients, are willing to risk postponing a mammogram based on an algorithm.
 

A version of this article appeared on Medscape.com.

TOPLINE:

A comprehensive model considering patient age, diabetes, colonoscopy indications, and polyp findings can predict colorectal cancer (CRC) risk more accurately than the solely polyp-based model in patients with a first diagnosis of adenoma on colonoscopy.

METHODOLOGY:

• Because colonoscopy surveillance guidelines relying solely on previous polyp findings to assess CRC risk are imprecise, researchers developed and tested a comprehensive risk prediction model from a list of CRC-related predictors that included patient characteristics and clinical factors in addition to polyp findings.
• The comprehensive model included baseline colonoscopy indication, age group, diabetes diagnosis, and polyp findings (adenoma with advanced histology, polyp size ≥ 10 mm, and sessile serrated or traditional serrated adenoma).
• They randomly assigned 95,001 patients (mean age, 61.9 years; 45.5% women) who underwent colonoscopy with polypectomy to remove a conventional adenoma into two cohorts: Model development (66,500) and internal validation (28,501).
• In both cohorts, researchers compared the performance of the polyp findings-only method against the comprehensive model in predicting CRC, defined as an adenocarcinoma of the colon or rectum diagnosed a year after the baseline colonoscopy.

TAKEAWAY:

• During the follow-up period starting 1 year after colonoscopy, 495 patients were diagnosed with CRC; 354 were in the development cohort and 141 were in the validation cohort.
• The comprehensive model demonstrated better predictive performance than the traditional polyp-based model in the development cohort (area under the curve [AUC], 0.71 vs 0.61) and in the validation cohort (AUC, 0.7 vs 0.62).
• The difference in the Akaike Information Criterion values between the comprehensive and polyp models was 45.7, much above the threshold of 10, strongly indicating the superior performance of the comprehensive model.

IN PRACTICE:

“Improving the ability to accurately predict the patients at highest risk for CRC after polypectomy is critically important, given the considerable costs and resources associated with treating CRC and the better prognosis associated with early cancer detection. The current findings provide proof of concept that inclusion of CRC risk factors beyond prior polyp findings has the potential to improve post-colonoscopy risk stratification,” the authors wrote.

SOURCE:

The study, led by Jeffrey K. Lee, MD, MPH, Division of Research, Kaiser Permanente Northern California, Oakland, California, was published online in The American Journal of Gastroenterology.

LIMITATIONS:

External validation of the model’s performance is needed in different practice settings. The generalizability of the findings is limited because the study population did not include individuals without a prior adenoma or those with an isolated serrated polyp. Moreover, the examination of polyp size > 20 mm as a potential predictor of CRC was precluded due to incomplete data.

DISCLOSURES:

The study was conducted within the National Cancer Institute–funded Population-Based Research to Optimize the Screening Process II consortium and funded by a career development grant from the National Cancer Institute to Lee. The authors declared no conflicts of interest.
 

A version of this article appeared on Medscape.com.

TOPLINE:

A comprehensive model considering patient age, diabetes, colonoscopy indications, and polyp findings can predict colorectal cancer (CRC) risk more accurately than the solely polyp-based model in patients with a first diagnosis of adenoma on colonoscopy.

METHODOLOGY:

• Because colonoscopy surveillance guidelines relying solely on previous polyp findings to assess CRC risk are imprecise, researchers developed and tested a comprehensive risk prediction model from a list of CRC-related predictors that included patient characteristics and clinical factors in addition to polyp findings.
• The comprehensive model included baseline colonoscopy indication, age group, diabetes diagnosis, and polyp findings (adenoma with advanced histology, polyp size ≥ 10 mm, and sessile serrated or traditional serrated adenoma).
• They randomly assigned 95,001 patients (mean age, 61.9 years; 45.5% women) who underwent colonoscopy with polypectomy to remove a conventional adenoma into two cohorts: Model development (66,500) and internal validation (28,501).
• In both cohorts, researchers compared the performance of the polyp findings-only method against the comprehensive model in predicting CRC, defined as an adenocarcinoma of the colon or rectum diagnosed a year after the baseline colonoscopy.

TAKEAWAY:

• During the follow-up period starting 1 year after colonoscopy, 495 patients were diagnosed with CRC; 354 were in the development cohort and 141 were in the validation cohort.
• The comprehensive model demonstrated better predictive performance than the traditional polyp-based model in the development cohort (area under the curve [AUC], 0.71 vs 0.61) and in the validation cohort (AUC, 0.7 vs 0.62).
• The difference in the Akaike Information Criterion values between the comprehensive and polyp models was 45.7, much above the threshold of 10, strongly indicating the superior performance of the comprehensive model.

IN PRACTICE:

“Improving the ability to accurately predict the patients at highest risk for CRC after polypectomy is critically important, given the considerable costs and resources associated with treating CRC and the better prognosis associated with early cancer detection. The current findings provide proof of concept that inclusion of CRC risk factors beyond prior polyp findings has the potential to improve post-colonoscopy risk stratification,” the authors wrote.

SOURCE:

The study, led by Jeffrey K. Lee, MD, MPH, Division of Research, Kaiser Permanente Northern California, Oakland, California, was published online in The American Journal of Gastroenterology.

LIMITATIONS:

External validation of the model’s performance is needed in different practice settings. The generalizability of the findings is limited because the study population did not include individuals without a prior adenoma or those with an isolated serrated polyp. Moreover, the examination of polyp size > 20 mm as a potential predictor of CRC was precluded due to incomplete data.

DISCLOSURES:

The study was conducted within the National Cancer Institute–funded Population-Based Research to Optimize the Screening Process II consortium and funded by a career development grant from the National Cancer Institute to Lee. The authors declared no conflicts of interest.
 

A version of this article appeared on Medscape.com.

TOPLINE:

A comprehensive model considering patient age, diabetes, colonoscopy indications, and polyp findings can predict colorectal cancer (CRC) risk more accurately than the solely polyp-based model in patients with a first diagnosis of adenoma on colonoscopy.

METHODOLOGY:

• Because colonoscopy surveillance guidelines relying solely on previous polyp findings to assess CRC risk are imprecise, researchers developed and tested a comprehensive risk prediction model from a list of CRC-related predictors that included patient characteristics and clinical factors in addition to polyp findings.
• The comprehensive model included baseline colonoscopy indication, age group, diabetes diagnosis, and polyp findings (adenoma with advanced histology, polyp size ≥ 10 mm, and sessile serrated or traditional serrated adenoma).
• They randomly assigned 95,001 patients (mean age, 61.9 years; 45.5% women) who underwent colonoscopy with polypectomy to remove a conventional adenoma into two cohorts: Model development (66,500) and internal validation (28,501).
• In both cohorts, researchers compared the performance of the polyp findings-only method against the comprehensive model in predicting CRC, defined as an adenocarcinoma of the colon or rectum diagnosed a year after the baseline colonoscopy.

TAKEAWAY:

• During the follow-up period starting 1 year after colonoscopy, 495 patients were diagnosed with CRC; 354 were in the development cohort and 141 were in the validation cohort.
• The comprehensive model demonstrated better predictive performance than the traditional polyp-based model in the development cohort (area under the curve [AUC], 0.71 vs 0.61) and in the validation cohort (AUC, 0.7 vs 0.62).
• The difference in the Akaike Information Criterion values between the comprehensive and polyp models was 45.7, much above the threshold of 10, strongly indicating the superior performance of the comprehensive model.

IN PRACTICE:

“Improving the ability to accurately predict the patients at highest risk for CRC after polypectomy is critically important, given the considerable costs and resources associated with treating CRC and the better prognosis associated with early cancer detection. The current findings provide proof of concept that inclusion of CRC risk factors beyond prior polyp findings has the potential to improve post-colonoscopy risk stratification,” the authors wrote.

SOURCE:

The study, led by Jeffrey K. Lee, MD, MPH, Division of Research, Kaiser Permanente Northern California, Oakland, California, was published online in The American Journal of Gastroenterology.

LIMITATIONS:

External validation of the model’s performance is needed in different practice settings. The generalizability of the findings is limited because the study population did not include individuals without a prior adenoma or those with an isolated serrated polyp. Moreover, the examination of polyp size > 20 mm as a potential predictor of CRC was precluded due to incomplete data.

DISCLOSURES:

The study was conducted within the National Cancer Institute–funded Population-Based Research to Optimize the Screening Process II consortium and funded by a career development grant from the National Cancer Institute to Lee. The authors declared no conflicts of interest.
 

A version of this article appeared on Medscape.com.

A next-generation stool DNA test for colorectal cancer (CRC) screening had higher sensitivity for all screening-relevant lesions but lower specificity than a currently available fecal immunochemical test (FIT), according to the large prospective BLUE-C study.

The multi-target assay by Exact Sciences Corporation, the makers of Cologuard, includes new biomarkers designed to increase specificity without decreasing sensitivity. It showed a sensitivity for CRC of almost 94%, with more than 43% sensitivity for advanced precancerous lesions and nearly 91% specificity for advanced neoplasia, according to the study results, which were published in The New England Journal of Medicine.

Indiana University School of Medicine

Adherence to CRC screening in the United States is well below the 80% national target, and the quest continues for noninvasive screening assays that might improve screening adherence, noted lead author Thomas F. Imperiale, MD, AGAF, a professor of medicine at Indiana University School of medicine in Indianapolis, and colleagues.

“The test’s manufacturer developed a new version of its existing Cologuard FIT/DNA test because it took to heart the feedback from primary care providers and gastroenterologists about the test’s low specificity,” Dr. Imperiale said in an interview. “The goal of the new test was to improve specificity without losing, and perhaps even gaining, some sensitivity — a goal that is not easily accomplished when you’re trying to improve on a sensitivity for colorectal cancer that was already 92.3% in the current version of Cologuard.”

Compared with the earlier version of Cologuard, he added, the new generation retained sensitivity for CRC and advanced precancerous lesions or polyps while improving specificity by 30% (90.6% vs 86.6%) for advanced neoplasia — a combination of CRC and advanced precancerous lesions, he said. “This with the caveat, however, that the two versions were not compared head-to-head in this new study,” Dr. Imperiale said.

The higher specificity for advanced lesions is expected to translate to a lower false positive rate. Lowering false positive rates is crucial because that reduces the need for costly, invasive, and unnecessary colonoscopies, said Aasma Shaukat, MD, MPH, AGAF, director of outcomes research in NYU Langone Health’s division of gastroenterology and hepatology in New York City.

New York University

“Many physicians felt there were too many false positives with the existing version, and that is anxiety-provoking in patients and providers,” said Dr. Shaukat, who was not involved in the study.

In her view, however, the test’s moderate improvements in detecting certain lesions does not make it demonstrably superior to its predecessor, and there is always the possibility of higher cost to consider.

While acknowledging that a higher sensitivity for all advanced precancerous lesions would have been welcome, Dr. Imperiale said the test detected 75% of the most worrisome of such lesions — “the ones containing high-grade dysplastic cells and suggesting near-term conversion to cancer. And its ability to detect other advanced lesions improved as the size of the lesions increased.”
 

Testing details

Almost 21,000 asymptomatic participants age 40 years and older undergoing screening colonoscopy were evaluated at 186 US sites during the period 2019 to 2023. Of the cohort, 98 had CRC, 2144 had advanced precancerous lesions, 6973 had nonadvanced adenomas, and 10,961 had nonneoplastic findings or negative colonoscopy.

Advanced precancerous lesions included one or more adenomas or sessile serrated lesions measuring at least 1 cm in the longest dimension, lesions with villous histologic features, and high-grade dysplasia. The new DNA test identified 92 of 98 participants with CRC and 76 of 82 participants with screening-relevant cancers. Among the findings for the new assay:

• Sensitivity for any-stage CRC was 93.9% (95% confidence interval [CI], 87.1- 97.7)
• Sensitivity for advanced precancerous lesions was 43.4% (95% CI, 41.3-45.6)
• Sensitivity for high-grade dysplasia was 74.6% (95% CI, 65.6-82.3)
• Specificity for advanced neoplasia was 90.6% (95% CI, 90.1- 91.0).
• Specificity for nonneoplastic findings or negative colonoscopy was 92.7% (95% CI, 92.2-93.1)
• Specificity for negative colonoscopy was 93.3 (95% CI, 92.8-93.9)
• No adverse events occurred.

In the comparator assay, OC-AUTO FIT by Polymedco, sensitivity was 67.3% (95% CI, 57.1-76.5) for CRC, 23.3% (95% CI, 21.5-25.2) for advanced precancerous lesions, and 47.4% (95% CI, 37.9-56.9) for high-grade dysplasia. In the comparator FIT, however, specificity was better across all age groups — at 94.8% (95% CI, 94.4-95.1) for advanced neoplasia, 95.7% (95% CI, 95.3- 96.1) for nonneoplastic findings, and 96.0% (95% CI, 95.5-96.4) for negative colonoscopy.

In another article in the same issue of NEJM, Guardant Health’s cell-free DNA blood-based test had 83% sensitivity for CRC, 90% specificity for advanced neoplasia, and 13% sensitivity for advanced precancerous lesions in an average-risk population.

An age-related decrease in specificity was observed with the new Cologuard test, but that did not concern Dr. Imperiale because the same observation was made with the current version. “In fact, the next-gen version appears to have less of an age-related decrease in specificity than the current version, although, again, the two versions were not tested head-to-head,” he noted.

The effect of age-related background methylation of DNA is well known, he explained. “Clinicians and older patients in the screening age range do need to be aware of this effect on specificity before ordering or agreeing to do the test. I do not see this as a stumbling block to implementation, but it does require discussion between patient and ordering provider.”

The new version of the DNA test is expected to be available in about a year.

According to Dr. Imperiale, further research is needed to ascertain the test’s acceptability and adherence rates and to quantify its yield in population-based screening. Determining its cost-effectiveness and making it easier to use are other goals. “And most importantly, the degree of reduction in the incidence and mortality from colorectal cancer,” he said.

Cost-effectiveness and the selection of the testing interval may play roles in adherence, particularly in populations with lower rates of screening adherence than the general population, John M. Carethers, MD, AGAF, of the University of California, San Diego, noted in a related editorial.

“Adherence to screening varies according to age group, including persons in the 45- to 49-year age group who are now eligible for average-risk screening,” he wrote. “It is hoped that these newer tests will increase use and adherence and elevate the percentage of the population undergoing screening in order to reduce deaths from colorectal cancer.”

This study was sponsored by Exact Sciences Corporation, which conducted the stool testing at its laboratories.

Dr. Imperiale had no competing interests to disclose. Several study co-authors reported employment with Exact Sciences, or stock and intellectual property ownership. Dr. Shaukat disclosed consulting for Freenome. Dr. Carethers reported ties to Avantor Inc. and Geneoscopy.

A next-generation stool DNA test for colorectal cancer (CRC) screening had higher sensitivity for all screening-relevant lesions but lower specificity than a currently available fecal immunochemical test (FIT), according to the large prospective BLUE-C study.

The multi-target assay by Exact Sciences Corporation, the makers of Cologuard, includes new biomarkers designed to increase specificity without decreasing sensitivity. It showed a sensitivity for CRC of almost 94%, with more than 43% sensitivity for advanced precancerous lesions and nearly 91% specificity for advanced neoplasia, according to the study results, which were published in The New England Journal of Medicine.

Indiana University School of Medicine

Adherence to CRC screening in the United States is well below the 80% national target, and the quest continues for noninvasive screening assays that might improve screening adherence, noted lead author Thomas F. Imperiale, MD, AGAF, a professor of medicine at Indiana University School of medicine in Indianapolis, and colleagues.

“The test’s manufacturer developed a new version of its existing Cologuard FIT/DNA test because it took to heart the feedback from primary care providers and gastroenterologists about the test’s low specificity,” Dr. Imperiale said in an interview. “The goal of the new test was to improve specificity without losing, and perhaps even gaining, some sensitivity — a goal that is not easily accomplished when you’re trying to improve on a sensitivity for colorectal cancer that was already 92.3% in the current version of Cologuard.”

Compared with the earlier version of Cologuard, he added, the new generation retained sensitivity for CRC and advanced precancerous lesions or polyps while improving specificity by 30% (90.6% vs 86.6%) for advanced neoplasia — a combination of CRC and advanced precancerous lesions, he said. “This with the caveat, however, that the two versions were not compared head-to-head in this new study,” Dr. Imperiale said.

The higher specificity for advanced lesions is expected to translate to a lower false positive rate. Lowering false positive rates is crucial because that reduces the need for costly, invasive, and unnecessary colonoscopies, said Aasma Shaukat, MD, MPH, AGAF, director of outcomes research in NYU Langone Health’s division of gastroenterology and hepatology in New York City.

New York University

“Many physicians felt there were too many false positives with the existing version, and that is anxiety-provoking in patients and providers,” said Dr. Shaukat, who was not involved in the study.

In her view, however, the test’s moderate improvements in detecting certain lesions does not make it demonstrably superior to its predecessor, and there is always the possibility of higher cost to consider.

While acknowledging that a higher sensitivity for all advanced precancerous lesions would have been welcome, Dr. Imperiale said the test detected 75% of the most worrisome of such lesions — “the ones containing high-grade dysplastic cells and suggesting near-term conversion to cancer. And its ability to detect other advanced lesions improved as the size of the lesions increased.”
 

Testing details

Almost 21,000 asymptomatic participants age 40 years and older undergoing screening colonoscopy were evaluated at 186 US sites during the period 2019 to 2023. Of the cohort, 98 had CRC, 2144 had advanced precancerous lesions, 6973 had nonadvanced adenomas, and 10,961 had nonneoplastic findings or negative colonoscopy.

Advanced precancerous lesions included one or more adenomas or sessile serrated lesions measuring at least 1 cm in the longest dimension, lesions with villous histologic features, and high-grade dysplasia. The new DNA test identified 92 of 98 participants with CRC and 76 of 82 participants with screening-relevant cancers. Among the findings for the new assay:

• Sensitivity for any-stage CRC was 93.9% (95% confidence interval [CI], 87.1- 97.7)
• Sensitivity for advanced precancerous lesions was 43.4% (95% CI, 41.3-45.6)
• Sensitivity for high-grade dysplasia was 74.6% (95% CI, 65.6-82.3)
• Specificity for advanced neoplasia was 90.6% (95% CI, 90.1- 91.0).
• Specificity for nonneoplastic findings or negative colonoscopy was 92.7% (95% CI, 92.2-93.1)
• Specificity for negative colonoscopy was 93.3 (95% CI, 92.8-93.9)
• No adverse events occurred.

In the comparator assay, OC-AUTO FIT by Polymedco, sensitivity was 67.3% (95% CI, 57.1-76.5) for CRC, 23.3% (95% CI, 21.5-25.2) for advanced precancerous lesions, and 47.4% (95% CI, 37.9-56.9) for high-grade dysplasia. In the comparator FIT, however, specificity was better across all age groups — at 94.8% (95% CI, 94.4-95.1) for advanced neoplasia, 95.7% (95% CI, 95.3- 96.1) for nonneoplastic findings, and 96.0% (95% CI, 95.5-96.4) for negative colonoscopy.

In another article in the same issue of NEJM, Guardant Health’s cell-free DNA blood-based test had 83% sensitivity for CRC, 90% specificity for advanced neoplasia, and 13% sensitivity for advanced precancerous lesions in an average-risk population.

An age-related decrease in specificity was observed with the new Cologuard test, but that did not concern Dr. Imperiale because the same observation was made with the current version. “In fact, the next-gen version appears to have less of an age-related decrease in specificity than the current version, although, again, the two versions were not tested head-to-head,” he noted.

The effect of age-related background methylation of DNA is well known, he explained. “Clinicians and older patients in the screening age range do need to be aware of this effect on specificity before ordering or agreeing to do the test. I do not see this as a stumbling block to implementation, but it does require discussion between patient and ordering provider.”

The new version of the DNA test is expected to be available in about a year.

According to Dr. Imperiale, further research is needed to ascertain the test’s acceptability and adherence rates and to quantify its yield in population-based screening. Determining its cost-effectiveness and making it easier to use are other goals. “And most importantly, the degree of reduction in the incidence and mortality from colorectal cancer,” he said.

Cost-effectiveness and the selection of the testing interval may play roles in adherence, particularly in populations with lower rates of screening adherence than the general population, John M. Carethers, MD, AGAF, of the University of California, San Diego, noted in a related editorial.

“Adherence to screening varies according to age group, including persons in the 45- to 49-year age group who are now eligible for average-risk screening,” he wrote. “It is hoped that these newer tests will increase use and adherence and elevate the percentage of the population undergoing screening in order to reduce deaths from colorectal cancer.”

This study was sponsored by Exact Sciences Corporation, which conducted the stool testing at its laboratories.

Dr. Imperiale had no competing interests to disclose. Several study co-authors reported employment with Exact Sciences, or stock and intellectual property ownership. Dr. Shaukat disclosed consulting for Freenome. Dr. Carethers reported ties to Avantor Inc. and Geneoscopy.

A next-generation stool DNA test for colorectal cancer (CRC) screening had higher sensitivity for all screening-relevant lesions but lower specificity than a currently available fecal immunochemical test (FIT), according to the large prospective BLUE-C study.

The multi-target assay by Exact Sciences Corporation, the makers of Cologuard, includes new biomarkers designed to increase specificity without decreasing sensitivity. It showed a sensitivity for CRC of almost 94%, with more than 43% sensitivity for advanced precancerous lesions and nearly 91% specificity for advanced neoplasia, according to the study results, which were published in The New England Journal of Medicine.

Indiana University School of Medicine

Adherence to CRC screening in the United States is well below the 80% national target, and the quest continues for noninvasive screening assays that might improve screening adherence, noted lead author Thomas F. Imperiale, MD, AGAF, a professor of medicine at Indiana University School of medicine in Indianapolis, and colleagues.

“The test’s manufacturer developed a new version of its existing Cologuard FIT/DNA test because it took to heart the feedback from primary care providers and gastroenterologists about the test’s low specificity,” Dr. Imperiale said in an interview. “The goal of the new test was to improve specificity without losing, and perhaps even gaining, some sensitivity — a goal that is not easily accomplished when you’re trying to improve on a sensitivity for colorectal cancer that was already 92.3% in the current version of Cologuard.”

Compared with the earlier version of Cologuard, he added, the new generation retained sensitivity for CRC and advanced precancerous lesions or polyps while improving specificity by 30% (90.6% vs 86.6%) for advanced neoplasia — a combination of CRC and advanced precancerous lesions, he said. “This with the caveat, however, that the two versions were not compared head-to-head in this new study,” Dr. Imperiale said.

The higher specificity for advanced lesions is expected to translate to a lower false positive rate. Lowering false positive rates is crucial because that reduces the need for costly, invasive, and unnecessary colonoscopies, said Aasma Shaukat, MD, MPH, AGAF, director of outcomes research in NYU Langone Health’s division of gastroenterology and hepatology in New York City.

New York University

“Many physicians felt there were too many false positives with the existing version, and that is anxiety-provoking in patients and providers,” said Dr. Shaukat, who was not involved in the study.

In her view, however, the test’s moderate improvements in detecting certain lesions does not make it demonstrably superior to its predecessor, and there is always the possibility of higher cost to consider.

While acknowledging that a higher sensitivity for all advanced precancerous lesions would have been welcome, Dr. Imperiale said the test detected 75% of the most worrisome of such lesions — “the ones containing high-grade dysplastic cells and suggesting near-term conversion to cancer. And its ability to detect other advanced lesions improved as the size of the lesions increased.”
 

Testing details

Almost 21,000 asymptomatic participants age 40 years and older undergoing screening colonoscopy were evaluated at 186 US sites during the period 2019 to 2023. Of the cohort, 98 had CRC, 2144 had advanced precancerous lesions, 6973 had nonadvanced adenomas, and 10,961 had nonneoplastic findings or negative colonoscopy.

Advanced precancerous lesions included one or more adenomas or sessile serrated lesions measuring at least 1 cm in the longest dimension, lesions with villous histologic features, and high-grade dysplasia. The new DNA test identified 92 of 98 participants with CRC and 76 of 82 participants with screening-relevant cancers. Among the findings for the new assay:

• Sensitivity for any-stage CRC was 93.9% (95% confidence interval [CI], 87.1- 97.7)
• Sensitivity for advanced precancerous lesions was 43.4% (95% CI, 41.3-45.6)
• Sensitivity for high-grade dysplasia was 74.6% (95% CI, 65.6-82.3)
• Specificity for advanced neoplasia was 90.6% (95% CI, 90.1- 91.0).
• Specificity for nonneoplastic findings or negative colonoscopy was 92.7% (95% CI, 92.2-93.1)
• Specificity for negative colonoscopy was 93.3 (95% CI, 92.8-93.9)
• No adverse events occurred.

In the comparator assay, OC-AUTO FIT by Polymedco, sensitivity was 67.3% (95% CI, 57.1-76.5) for CRC, 23.3% (95% CI, 21.5-25.2) for advanced precancerous lesions, and 47.4% (95% CI, 37.9-56.9) for high-grade dysplasia. In the comparator FIT, however, specificity was better across all age groups — at 94.8% (95% CI, 94.4-95.1) for advanced neoplasia, 95.7% (95% CI, 95.3- 96.1) for nonneoplastic findings, and 96.0% (95% CI, 95.5-96.4) for negative colonoscopy.

In another article in the same issue of NEJM, Guardant Health’s cell-free DNA blood-based test had 83% sensitivity for CRC, 90% specificity for advanced neoplasia, and 13% sensitivity for advanced precancerous lesions in an average-risk population.

An age-related decrease in specificity was observed with the new Cologuard test, but that did not concern Dr. Imperiale because the same observation was made with the current version. “In fact, the next-gen version appears to have less of an age-related decrease in specificity than the current version, although, again, the two versions were not tested head-to-head,” he noted.

The effect of age-related background methylation of DNA is well known, he explained. “Clinicians and older patients in the screening age range do need to be aware of this effect on specificity before ordering or agreeing to do the test. I do not see this as a stumbling block to implementation, but it does require discussion between patient and ordering provider.”

The new version of the DNA test is expected to be available in about a year.

According to Dr. Imperiale, further research is needed to ascertain the test’s acceptability and adherence rates and to quantify its yield in population-based screening. Determining its cost-effectiveness and making it easier to use are other goals. “And most importantly, the degree of reduction in the incidence and mortality from colorectal cancer,” he said.

Cost-effectiveness and the selection of the testing interval may play roles in adherence, particularly in populations with lower rates of screening adherence than the general population, John M. Carethers, MD, AGAF, of the University of California, San Diego, noted in a related editorial.

“Adherence to screening varies according to age group, including persons in the 45- to 49-year age group who are now eligible for average-risk screening,” he wrote. “It is hoped that these newer tests will increase use and adherence and elevate the percentage of the population undergoing screening in order to reduce deaths from colorectal cancer.”

This study was sponsored by Exact Sciences Corporation, which conducted the stool testing at its laboratories.

Dr. Imperiale had no competing interests to disclose. Several study co-authors reported employment with Exact Sciences, or stock and intellectual property ownership. Dr. Shaukat disclosed consulting for Freenome. Dr. Carethers reported ties to Avantor Inc. and Geneoscopy.

A recent study linking a niacin derivative to an increased risk for cardiovascular events has raised questions about the safety of this B vitamin, which is added to many food staples in the Western diet and taken in the form of supplements.

The findings, which were published in Nature Medicine, may also help explain why taking niacin, which lowers low-density lipoprotein cholesterol and raises high-density lipoprotein cholesterol, did not lead to a reduction in cardiovascular events in major clinical trials.

But could this essential micronutrient really have an adverse effect on cardiovascular risk, and what are the implications for niacin intake?

Senior author of the new study Stanley Hazen, MD, believes some prudence on excessive niacin intake may be justified.

“I’m not suggesting we should completely avoid niacin — it is an essential nutrient, but our results suggest that too much may be harmful,” Dr. Hazen said.

Niacin supplements are also sold with claims of antiaging effects, arthritis relief, and boosting brain function, although none of these claims have been proven. And the related compound, nicotinamide, is recommended to prevent skin cancer in high-risk patients; however, a recent study questioned that guidance.

“I would say to the general public that avoiding supplements containing niacin or related compounds could be a sensible approach at present, while these findings are investigated further.”

Other experts are unsure if such action is justified on the basis of this single study.
 

Residual Cardiovascular Risk

Dr. Hazen, who is chair of the Department of Cardiovascular & Metabolic Sciences, at the Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, explained to this news organization that they did not set out to study niacin.

“It began as a study to look for novel pathways involved in residual cardiovascular disease risk — the risk for cardiovascular events after adjusting for traditional risk factors such as cholesterol, blood pressure, and diabetes.”

The researchers began looking for compounds in plasma that predicted future adverse cardiovascular events in individuals undergoing elective diagnostic cardiac evaluation. Two of the leading candidates identified were niacin derivatives — 2PY and 4PY — that are only formed in the presence of excess niacin.

They then developed assays to measure 2PY and 4PY and conducted further studies in two validation cohorts — 2331 US individuals and a European cohort of 832 individuals. In both cohorts, elevated plasma levels of 2PY and 4PY predicted future adverse cardiovascular events, with a doubling in cardiovascular risk seen in those with levels in the highest vs the lowest quartile.

To move beyond these observational studies and to explore a potentially causal relationship, Dr. Hazen’s team went on to perform genome-wide association studies and found that genetic variants that tracked with higher levels of 4PY also linked to levels of the inflammatory marker, vascular cell adhesion molecule 1 (VCAM-1).

And in cell culture and animal studies, they found that 4PY was a driver of inflammation, upregulating VCAM-1 and eliciting vascular inflammation responses.

“So, we have shown in several different ways that the niacin derivative, 4PY, is linked to increased cardiovascular risk,” Dr. Hazen commented.
 

Significant Health Implications?

Dr. Hazen believed these findings could have significant health implications.

He noted that Western populations have been consuming large amounts of niacin ever since World War 2 when we began to fortify many foods with essential vitamins to avoid diseases caused by deficiencies. Niacin was added to foods to prevent pellagra — a disease characterized by inflamed skin, diarrhea, and dementia, that was often fatal.

“While we may have eliminated pellagra, have we, as a consequence, increased the prevalence of cardiovascular disease many years later?” Dr. Hazen asked.

This may be a clue to why niacin does not lower cardiovascular risk as much as would be expected from the degree of cholesterol lowering it brings about. “This is the niacin paradox and has led to the thought that there could be some kind of adverse effect that niacin is promoting. I think we may have found something that contributes to the niacin paradox,” he said.

However, the niacin pathway is complicated. Niacin is the major source of nicotinamide adenine dinucleotide (NAD), an integral molecule that allows cells to create energy. “Because it is so important, our bodies are designed to salvage and retain NADs, but once storage capacity is exceeded, then these 4PY and 2PY derivatives are generated,” Dr. Hazen explained. “But you have to really eat a lot of niacin-rich foods for this to happen.”

He is not claiming that niacin causes cardiovascular disease. “It is 4PY that appears to be the driver of vascular inflammation. And 4PY is a breakdown product of niacin. But there is more than one pathway that could lead to 4PY generation. There is a whole interconnecting network of compounds that interchange with each other — known as the niacin pool — any one or more of these compounds can be ingested and raise pool levels and ultimately 4PY levels. However, by far and away, niacin is one of the major sources,” Dr. Hazen commented.
 

Are High-Protein Diets Also Implicated?

Other sources of NADs include tryptophan, present in protein. And one of the genetic variants linked to changes in 4PY levels is connected to how dietary protein is directed into the niacin pool, raising the possibility that a high-protein diet may also raise cardiovascular risk in some people, Dr. Hazen noted.

Dr. Hazen estimated that about 3% of the niacin pool in a normal diet comes from protein intake, but that the percentage could increase substantially in very high–protein diets.

“Our data support the concept that if we lower our 4PY level long-term, then that would result in a reduction in cardiovascular disease. But this is still just a hypothesis. If we lower niacin intake, we will lower 4PY,” Dr. Hazen stated.

He said that this research is at too early a stage to give firm recommendations in what this means for the consumer.

“Based on these findings, I would advise people to avoid taking niacin or nicotinic acid or nicotinamide supplements and to eat a sensible balanced diet — maybe not to overdo the high protein–type diets. That’s all we can really say at the moment.”

Noting that niacin can also be one of the major components in energy drinks, he suggested it may be prudent to limit consumption of these products.
 

What Is the Optimum Niacin Intake?

Dr. Hazen noted that the recommended dietary allowance (RDA) for niacin is well known — between 14 and 18 mg, but he said the average American ingests four times that amount, and some people have substantially higher intakes — up to 50 times the RDA if taking supplements.

While food fortification with niacin may have been useful in the past, Dr. Hazen questioned whether it should still be mandated.

“In the US, you cannot buy flour or cereal or rice that is not fortified. And if you look closely, some products have much higher levels than those that are mandated. The food companies advertise this as a benefit, but there is no good data in support of that. What if several decades of eating excessive amounts of niacin has led to an increase in cardiovascular disease?”

He does not propose stopping all niacin fortification, “but maybe, we could have the choice of selecting an unfortified option,” he said.
 

Causal Link Not Proven

Commenting for this news organization, John Guyton, MD, Professor Emeritus of Medicine, Duke University Medical Center, Durham, North Carolina, who has been involved in niacin research for many years, said the Nature Medicine study showed “interesting and important results,” but they do not at this point prove a causal link between niacin intake and risk for cardiovascular disease.

“These findings need to be investigated further, and more studies are certainly justified, but I don’t think that this study alone makes an adequate case for restricting niacin intake, or thinking about stopping niacin fortification of foodstuffs,” Dr. Guyton said.

Noting that niacin is present in large quantities in many fast foods, he suggested the researchers may have just picked up the consequences of eating an unhealthy diet.

“If you look at foods that contain high quantities of niacin, red meat is at the top of the list. And if you think of a hamburger, niacin is present in relatively large quantities both the burger and the bun. So, these findings may just be a reflection of an overall unhealthy diet,” he commented.

Dr. Guyton also pointed out that major clinical trials with niacin have shown mixed results, and its effect on cardiovascular risk is still not completely understood. While the HPS2-THRIVE and AIM-HIGH trials did not show benefits in reducing cardiovascular events, an earlier study, the Coronary Drug Project in which the agent was given with food, did show some positive effects with substantial reductions in myocardial infarction and stroke, and there was the suggestion of a reduction in long-term mortality in the niacin group several years after the trial had ended.
 

Nicotinamide in Skin Cancer Prevention

What about the use of nicotinamide in skin cancer prevention?

Addressing this question, Kristin Bibee, MD, assistant professor of dermatology at Johns Hopkins University School of Medicine, Baltimore, pointed out that nicotinamide, although closely related to niacin, may have different effects. “This study does not specifically address nicotinamide supplementation and 4PY levels,” she said.

Diona Damian, MD, professor of dermatology at the University of Sydney, Camperdown, Australia, told this news organization that it was hard to extrapolate these findings on basal levels of niacin in a cardiac cohort to the administration of supra-physiological doses of nicotinamide for skin cancer prevention.

There may be different effects of supplemental niacin compared to nicotinamide, which lacks the vasodilatory effects seen with niacin, Dr. Damian said, adding that it would be interesting to see the results from higher, therapeutic nicotinamide doses in patients with and without cardiac disease.

She pointed out that high vs low levels of nicotinamide supplementation can have different and even opposite effects on cellular processes, such as upregulating or inhibiting DNA repair enzymes. At high doses, nicotinamide is anti-inflammatory in skin.

Dr. Damian noted that two phase 3 studies (ONTRAC and ONTRANS) of nicotinamide 500 mg twice daily for skin cancer prevention did not find a significant increase in cardiovascular events compared to placebo over 12 months.

“Oral nicotinamide has been shown to reduce nonmelanoma skin cancer by about a quarter in patients with normal immunity and multiple skin cancers. The doses used for skin cancer prevention are well above daily dietary levels, and treatment needs to be ongoing for the protective effects to continue. Nicotinamide should not be recommended as a preventive agent for people who have not had multiple skin cancers but should be reserved for those with a heavy burden of skin cancers,” she commented.

“For now, it would be reasonable to balance the benefits of skin cancer reduction against possible effects on inflammatory markers in patients with cardiac risk factors, when helping patients to decide whether or not nicotinamide therapy is appropriate for them,” she added.

Meanwhile, Dr. Hazen said the most exciting part of this new research is the discovery of a new pathway that contributes to cardiovascular disease and potentially a new target to treat residual cardiovascular risk.

“I believe our results show that we should be measuring 4PY levels and individuals with high levels need to be extra vigilant about lowering their cardiovascular risk.”

The next step will be to confirm these results in other populations and then to develop a diagnostic test to identify people with a high 4PY level, he said.

A version of this article appeared on Medscape.com.

A recent study linking a niacin derivative to an increased risk for cardiovascular events has raised questions about the safety of this B vitamin, which is added to many food staples in the Western diet and taken in the form of supplements.

The findings, which were published in Nature Medicine, may also help explain why taking niacin, which lowers low-density lipoprotein cholesterol and raises high-density lipoprotein cholesterol, did not lead to a reduction in cardiovascular events in major clinical trials.

But could this essential micronutrient really have an adverse effect on cardiovascular risk, and what are the implications for niacin intake?

Senior author of the new study Stanley Hazen, MD, believes some prudence on excessive niacin intake may be justified.

“I’m not suggesting we should completely avoid niacin — it is an essential nutrient, but our results suggest that too much may be harmful,” Dr. Hazen said.

Niacin supplements are also sold with claims of antiaging effects, arthritis relief, and boosting brain function, although none of these claims have been proven. And the related compound, nicotinamide, is recommended to prevent skin cancer in high-risk patients; however, a recent study questioned that guidance.

“I would say to the general public that avoiding supplements containing niacin or related compounds could be a sensible approach at present, while these findings are investigated further.”

Other experts are unsure if such action is justified on the basis of this single study.
 

Residual Cardiovascular Risk

Dr. Hazen, who is chair of the Department of Cardiovascular & Metabolic Sciences, at the Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, explained to this news organization that they did not set out to study niacin.

“It began as a study to look for novel pathways involved in residual cardiovascular disease risk — the risk for cardiovascular events after adjusting for traditional risk factors such as cholesterol, blood pressure, and diabetes.”

The researchers began looking for compounds in plasma that predicted future adverse cardiovascular events in individuals undergoing elective diagnostic cardiac evaluation. Two of the leading candidates identified were niacin derivatives — 2PY and 4PY — that are only formed in the presence of excess niacin.

They then developed assays to measure 2PY and 4PY and conducted further studies in two validation cohorts — 2331 US individuals and a European cohort of 832 individuals. In both cohorts, elevated plasma levels of 2PY and 4PY predicted future adverse cardiovascular events, with a doubling in cardiovascular risk seen in those with levels in the highest vs the lowest quartile.

To move beyond these observational studies and to explore a potentially causal relationship, Dr. Hazen’s team went on to perform genome-wide association studies and found that genetic variants that tracked with higher levels of 4PY also linked to levels of the inflammatory marker, vascular cell adhesion molecule 1 (VCAM-1).

And in cell culture and animal studies, they found that 4PY was a driver of inflammation, upregulating VCAM-1 and eliciting vascular inflammation responses.

“So, we have shown in several different ways that the niacin derivative, 4PY, is linked to increased cardiovascular risk,” Dr. Hazen commented.
 

Significant Health Implications?

Dr. Hazen believed these findings could have significant health implications.

He noted that Western populations have been consuming large amounts of niacin ever since World War 2 when we began to fortify many foods with essential vitamins to avoid diseases caused by deficiencies. Niacin was added to foods to prevent pellagra — a disease characterized by inflamed skin, diarrhea, and dementia, that was often fatal.

“While we may have eliminated pellagra, have we, as a consequence, increased the prevalence of cardiovascular disease many years later?” Dr. Hazen asked.

This may be a clue to why niacin does not lower cardiovascular risk as much as would be expected from the degree of cholesterol lowering it brings about. “This is the niacin paradox and has led to the thought that there could be some kind of adverse effect that niacin is promoting. I think we may have found something that contributes to the niacin paradox,” he said.

However, the niacin pathway is complicated. Niacin is the major source of nicotinamide adenine dinucleotide (NAD), an integral molecule that allows cells to create energy. “Because it is so important, our bodies are designed to salvage and retain NADs, but once storage capacity is exceeded, then these 4PY and 2PY derivatives are generated,” Dr. Hazen explained. “But you have to really eat a lot of niacin-rich foods for this to happen.”

He is not claiming that niacin causes cardiovascular disease. “It is 4PY that appears to be the driver of vascular inflammation. And 4PY is a breakdown product of niacin. But there is more than one pathway that could lead to 4PY generation. There is a whole interconnecting network of compounds that interchange with each other — known as the niacin pool — any one or more of these compounds can be ingested and raise pool levels and ultimately 4PY levels. However, by far and away, niacin is one of the major sources,” Dr. Hazen commented.
 

Are High-Protein Diets Also Implicated?

Other sources of NADs include tryptophan, present in protein. And one of the genetic variants linked to changes in 4PY levels is connected to how dietary protein is directed into the niacin pool, raising the possibility that a high-protein diet may also raise cardiovascular risk in some people, Dr. Hazen noted.

Dr. Hazen estimated that about 3% of the niacin pool in a normal diet comes from protein intake, but that the percentage could increase substantially in very high–protein diets.

“Our data support the concept that if we lower our 4PY level long-term, then that would result in a reduction in cardiovascular disease. But this is still just a hypothesis. If we lower niacin intake, we will lower 4PY,” Dr. Hazen stated.

He said that this research is at too early a stage to give firm recommendations in what this means for the consumer.

“Based on these findings, I would advise people to avoid taking niacin or nicotinic acid or nicotinamide supplements and to eat a sensible balanced diet — maybe not to overdo the high protein–type diets. That’s all we can really say at the moment.”

Noting that niacin can also be one of the major components in energy drinks, he suggested it may be prudent to limit consumption of these products.
 

What Is the Optimum Niacin Intake?

Dr. Hazen noted that the recommended dietary allowance (RDA) for niacin is well known — between 14 and 18 mg, but he said the average American ingests four times that amount, and some people have substantially higher intakes — up to 50 times the RDA if taking supplements.

While food fortification with niacin may have been useful in the past, Dr. Hazen questioned whether it should still be mandated.

“In the US, you cannot buy flour or cereal or rice that is not fortified. And if you look closely, some products have much higher levels than those that are mandated. The food companies advertise this as a benefit, but there is no good data in support of that. What if several decades of eating excessive amounts of niacin has led to an increase in cardiovascular disease?”

He does not propose stopping all niacin fortification, “but maybe, we could have the choice of selecting an unfortified option,” he said.
 

Causal Link Not Proven

Commenting for this news organization, John Guyton, MD, Professor Emeritus of Medicine, Duke University Medical Center, Durham, North Carolina, who has been involved in niacin research for many years, said the Nature Medicine study showed “interesting and important results,” but they do not at this point prove a causal link between niacin intake and risk for cardiovascular disease.

“These findings need to be investigated further, and more studies are certainly justified, but I don’t think that this study alone makes an adequate case for restricting niacin intake, or thinking about stopping niacin fortification of foodstuffs,” Dr. Guyton said.

Noting that niacin is present in large quantities in many fast foods, he suggested the researchers may have just picked up the consequences of eating an unhealthy diet.

“If you look at foods that contain high quantities of niacin, red meat is at the top of the list. And if you think of a hamburger, niacin is present in relatively large quantities both the burger and the bun. So, these findings may just be a reflection of an overall unhealthy diet,” he commented.

Dr. Guyton also pointed out that major clinical trials with niacin have shown mixed results, and its effect on cardiovascular risk is still not completely understood. While the HPS2-THRIVE and AIM-HIGH trials did not show benefits in reducing cardiovascular events, an earlier study, the Coronary Drug Project in which the agent was given with food, did show some positive effects with substantial reductions in myocardial infarction and stroke, and there was the suggestion of a reduction in long-term mortality in the niacin group several years after the trial had ended.
 

Nicotinamide in Skin Cancer Prevention

What about the use of nicotinamide in skin cancer prevention?

Addressing this question, Kristin Bibee, MD, assistant professor of dermatology at Johns Hopkins University School of Medicine, Baltimore, pointed out that nicotinamide, although closely related to niacin, may have different effects. “This study does not specifically address nicotinamide supplementation and 4PY levels,” she said.

Diona Damian, MD, professor of dermatology at the University of Sydney, Camperdown, Australia, told this news organization that it was hard to extrapolate these findings on basal levels of niacin in a cardiac cohort to the administration of supra-physiological doses of nicotinamide for skin cancer prevention.

There may be different effects of supplemental niacin compared to nicotinamide, which lacks the vasodilatory effects seen with niacin, Dr. Damian said, adding that it would be interesting to see the results from higher, therapeutic nicotinamide doses in patients with and without cardiac disease.

She pointed out that high vs low levels of nicotinamide supplementation can have different and even opposite effects on cellular processes, such as upregulating or inhibiting DNA repair enzymes. At high doses, nicotinamide is anti-inflammatory in skin.

Dr. Damian noted that two phase 3 studies (ONTRAC and ONTRANS) of nicotinamide 500 mg twice daily for skin cancer prevention did not find a significant increase in cardiovascular events compared to placebo over 12 months.

“Oral nicotinamide has been shown to reduce nonmelanoma skin cancer by about a quarter in patients with normal immunity and multiple skin cancers. The doses used for skin cancer prevention are well above daily dietary levels, and treatment needs to be ongoing for the protective effects to continue. Nicotinamide should not be recommended as a preventive agent for people who have not had multiple skin cancers but should be reserved for those with a heavy burden of skin cancers,” she commented.

“For now, it would be reasonable to balance the benefits of skin cancer reduction against possible effects on inflammatory markers in patients with cardiac risk factors, when helping patients to decide whether or not nicotinamide therapy is appropriate for them,” she added.

Meanwhile, Dr. Hazen said the most exciting part of this new research is the discovery of a new pathway that contributes to cardiovascular disease and potentially a new target to treat residual cardiovascular risk.

“I believe our results show that we should be measuring 4PY levels and individuals with high levels need to be extra vigilant about lowering their cardiovascular risk.”

The next step will be to confirm these results in other populations and then to develop a diagnostic test to identify people with a high 4PY level, he said.

A version of this article appeared on Medscape.com.

A recent study linking a niacin derivative to an increased risk for cardiovascular events has raised questions about the safety of this B vitamin, which is added to many food staples in the Western diet and taken in the form of supplements.

The findings, which were published in Nature Medicine, may also help explain why taking niacin, which lowers low-density lipoprotein cholesterol and raises high-density lipoprotein cholesterol, did not lead to a reduction in cardiovascular events in major clinical trials.

But could this essential micronutrient really have an adverse effect on cardiovascular risk, and what are the implications for niacin intake?

Senior author of the new study Stanley Hazen, MD, believes some prudence on excessive niacin intake may be justified.

“I’m not suggesting we should completely avoid niacin — it is an essential nutrient, but our results suggest that too much may be harmful,” Dr. Hazen said.

Niacin supplements are also sold with claims of antiaging effects, arthritis relief, and boosting brain function, although none of these claims have been proven. And the related compound, nicotinamide, is recommended to prevent skin cancer in high-risk patients; however, a recent study questioned that guidance.

“I would say to the general public that avoiding supplements containing niacin or related compounds could be a sensible approach at present, while these findings are investigated further.”

Other experts are unsure if such action is justified on the basis of this single study.
 

Residual Cardiovascular Risk

Dr. Hazen, who is chair of the Department of Cardiovascular & Metabolic Sciences, at the Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, explained to this news organization that they did not set out to study niacin.

“It began as a study to look for novel pathways involved in residual cardiovascular disease risk — the risk for cardiovascular events after adjusting for traditional risk factors such as cholesterol, blood pressure, and diabetes.”

The researchers began looking for compounds in plasma that predicted future adverse cardiovascular events in individuals undergoing elective diagnostic cardiac evaluation. Two of the leading candidates identified were niacin derivatives — 2PY and 4PY — that are only formed in the presence of excess niacin.

They then developed assays to measure 2PY and 4PY and conducted further studies in two validation cohorts — 2331 US individuals and a European cohort of 832 individuals. In both cohorts, elevated plasma levels of 2PY and 4PY predicted future adverse cardiovascular events, with a doubling in cardiovascular risk seen in those with levels in the highest vs the lowest quartile.

To move beyond these observational studies and to explore a potentially causal relationship, Dr. Hazen’s team went on to perform genome-wide association studies and found that genetic variants that tracked with higher levels of 4PY also linked to levels of the inflammatory marker, vascular cell adhesion molecule 1 (VCAM-1).

And in cell culture and animal studies, they found that 4PY was a driver of inflammation, upregulating VCAM-1 and eliciting vascular inflammation responses.

“So, we have shown in several different ways that the niacin derivative, 4PY, is linked to increased cardiovascular risk,” Dr. Hazen commented.
 

Significant Health Implications?

Dr. Hazen believed these findings could have significant health implications.

He noted that Western populations have been consuming large amounts of niacin ever since World War 2 when we began to fortify many foods with essential vitamins to avoid diseases caused by deficiencies. Niacin was added to foods to prevent pellagra — a disease characterized by inflamed skin, diarrhea, and dementia, that was often fatal.

“While we may have eliminated pellagra, have we, as a consequence, increased the prevalence of cardiovascular disease many years later?” Dr. Hazen asked.

This may be a clue to why niacin does not lower cardiovascular risk as much as would be expected from the degree of cholesterol lowering it brings about. “This is the niacin paradox and has led to the thought that there could be some kind of adverse effect that niacin is promoting. I think we may have found something that contributes to the niacin paradox,” he said.

However, the niacin pathway is complicated. Niacin is the major source of nicotinamide adenine dinucleotide (NAD), an integral molecule that allows cells to create energy. “Because it is so important, our bodies are designed to salvage and retain NADs, but once storage capacity is exceeded, then these 4PY and 2PY derivatives are generated,” Dr. Hazen explained. “But you have to really eat a lot of niacin-rich foods for this to happen.”

He is not claiming that niacin causes cardiovascular disease. “It is 4PY that appears to be the driver of vascular inflammation. And 4PY is a breakdown product of niacin. But there is more than one pathway that could lead to 4PY generation. There is a whole interconnecting network of compounds that interchange with each other — known as the niacin pool — any one or more of these compounds can be ingested and raise pool levels and ultimately 4PY levels. However, by far and away, niacin is one of the major sources,” Dr. Hazen commented.
 

Are High-Protein Diets Also Implicated?

Other sources of NADs include tryptophan, present in protein. And one of the genetic variants linked to changes in 4PY levels is connected to how dietary protein is directed into the niacin pool, raising the possibility that a high-protein diet may also raise cardiovascular risk in some people, Dr. Hazen noted.

Dr. Hazen estimated that about 3% of the niacin pool in a normal diet comes from protein intake, but that the percentage could increase substantially in very high–protein diets.

“Our data support the concept that if we lower our 4PY level long-term, then that would result in a reduction in cardiovascular disease. But this is still just a hypothesis. If we lower niacin intake, we will lower 4PY,” Dr. Hazen stated.

He said that this research is at too early a stage to give firm recommendations in what this means for the consumer.

“Based on these findings, I would advise people to avoid taking niacin or nicotinic acid or nicotinamide supplements and to eat a sensible balanced diet — maybe not to overdo the high protein–type diets. That’s all we can really say at the moment.”

Noting that niacin can also be one of the major components in energy drinks, he suggested it may be prudent to limit consumption of these products.
 

What Is the Optimum Niacin Intake?

Dr. Hazen noted that the recommended dietary allowance (RDA) for niacin is well known — between 14 and 18 mg, but he said the average American ingests four times that amount, and some people have substantially higher intakes — up to 50 times the RDA if taking supplements.

While food fortification with niacin may have been useful in the past, Dr. Hazen questioned whether it should still be mandated.

“In the US, you cannot buy flour or cereal or rice that is not fortified. And if you look closely, some products have much higher levels than those that are mandated. The food companies advertise this as a benefit, but there is no good data in support of that. What if several decades of eating excessive amounts of niacin has led to an increase in cardiovascular disease?”

He does not propose stopping all niacin fortification, “but maybe, we could have the choice of selecting an unfortified option,” he said.
 

Causal Link Not Proven

Commenting for this news organization, John Guyton, MD, Professor Emeritus of Medicine, Duke University Medical Center, Durham, North Carolina, who has been involved in niacin research for many years, said the Nature Medicine study showed “interesting and important results,” but they do not at this point prove a causal link between niacin intake and risk for cardiovascular disease.

“These findings need to be investigated further, and more studies are certainly justified, but I don’t think that this study alone makes an adequate case for restricting niacin intake, or thinking about stopping niacin fortification of foodstuffs,” Dr. Guyton said.

Noting that niacin is present in large quantities in many fast foods, he suggested the researchers may have just picked up the consequences of eating an unhealthy diet.

“If you look at foods that contain high quantities of niacin, red meat is at the top of the list. And if you think of a hamburger, niacin is present in relatively large quantities both the burger and the bun. So, these findings may just be a reflection of an overall unhealthy diet,” he commented.

Dr. Guyton also pointed out that major clinical trials with niacin have shown mixed results, and its effect on cardiovascular risk is still not completely understood. While the HPS2-THRIVE and AIM-HIGH trials did not show benefits in reducing cardiovascular events, an earlier study, the Coronary Drug Project in which the agent was given with food, did show some positive effects with substantial reductions in myocardial infarction and stroke, and there was the suggestion of a reduction in long-term mortality in the niacin group several years after the trial had ended.
 

Nicotinamide in Skin Cancer Prevention

What about the use of nicotinamide in skin cancer prevention?

Addressing this question, Kristin Bibee, MD, assistant professor of dermatology at Johns Hopkins University School of Medicine, Baltimore, pointed out that nicotinamide, although closely related to niacin, may have different effects. “This study does not specifically address nicotinamide supplementation and 4PY levels,” she said.

Diona Damian, MD, professor of dermatology at the University of Sydney, Camperdown, Australia, told this news organization that it was hard to extrapolate these findings on basal levels of niacin in a cardiac cohort to the administration of supra-physiological doses of nicotinamide for skin cancer prevention.

There may be different effects of supplemental niacin compared to nicotinamide, which lacks the vasodilatory effects seen with niacin, Dr. Damian said, adding that it would be interesting to see the results from higher, therapeutic nicotinamide doses in patients with and without cardiac disease.

She pointed out that high vs low levels of nicotinamide supplementation can have different and even opposite effects on cellular processes, such as upregulating or inhibiting DNA repair enzymes. At high doses, nicotinamide is anti-inflammatory in skin.

Dr. Damian noted that two phase 3 studies (ONTRAC and ONTRANS) of nicotinamide 500 mg twice daily for skin cancer prevention did not find a significant increase in cardiovascular events compared to placebo over 12 months.

“Oral nicotinamide has been shown to reduce nonmelanoma skin cancer by about a quarter in patients with normal immunity and multiple skin cancers. The doses used for skin cancer prevention are well above daily dietary levels, and treatment needs to be ongoing for the protective effects to continue. Nicotinamide should not be recommended as a preventive agent for people who have not had multiple skin cancers but should be reserved for those with a heavy burden of skin cancers,” she commented.

“For now, it would be reasonable to balance the benefits of skin cancer reduction against possible effects on inflammatory markers in patients with cardiac risk factors, when helping patients to decide whether or not nicotinamide therapy is appropriate for them,” she added.

Meanwhile, Dr. Hazen said the most exciting part of this new research is the discovery of a new pathway that contributes to cardiovascular disease and potentially a new target to treat residual cardiovascular risk.

“I believe our results show that we should be measuring 4PY levels and individuals with high levels need to be extra vigilant about lowering their cardiovascular risk.”

The next step will be to confirm these results in other populations and then to develop a diagnostic test to identify people with a high 4PY level, he said.

A version of this article appeared on Medscape.com.

A new study raises a cautionary note on time-restricted eating (TRE), a type of intermittent fasting that is gaining popularity.

The observational analysis of over 20,000 US adults showed that those who limited their eating to a period of less than 8 hours per day had a higher risk for cardiovascular mortality compared with peers who ate across the typical 12-16 hours per day. This was the case in the overall sample and in those with cardiovascular disease (CVD) or cancer.

Lead author Victor Wenze Zhong, PhD, cautioned that the findings “require replication and we cannot demonstrate 8-hour TRE causes cardiovascular death in this observational study.

“However, it’s important for patients, particularly those with existing heart conditions or cancer, to be aware of the positive association between an 8-hour eating window and cardiovascular death,” Dr. Zhong, professor and chair, Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China, told this news organization. 

The results (Abstract P192) were presented March 18 at the American Heart Association (AHA) Epidemiology and Prevention/Lifestyle and Cardiometabolic Health Scientific Sessions 2024.
 

‘Provocative’ Results 

Short-term randomized controlled trials have suggested that 8-hour TRE may improve cardiometabolic risk profiles, but the potential long-term effects of this eating pattern are unknown. 

The observation that TRE may have short-term benefits but long-term adverse effects is “interesting and provocative” and needs further study, Christopher D. Gardner, PhD, professor of medicine at Stanford University in California, who wasn’t involved in the study, said in a conference statement, and he agreed that much more research is needed. 

The researchers analyzed data on dietary patterns for 20,078 adults (mean age, 48 years; 50% men; 73% non-Hispanic White) who participated in the 2003-2018 National Health and Nutrition Examination Surveys (NHANES). All of them completed two 24-hour dietary recall questionnaires within the first year of enrollment. Deaths through the end of 2019 were determined via the National Death Index.

During a median follow-up of 8 years, there were 2797 deaths due to any cause, including 840 CV deaths and 643 cancer deaths. 

In the overall sample, compared with an eating duration of 12-16 hours, 8-hour TRE was significantly associated with an increased risk for CV mortality (hazard ratio [HR], 1.91; 95% CI, 1.20-3.03).

This association was also observed in adults with CVD (HR, 2.07; 95% CI, 1.14-3.78) and adults with cancer (HR, 3.04; 95% CI, 1.44-6.41). 

Other eating durations were not associated with CV mortality, except for eating duration of 8 to less than 10 hours in people with CVD (HR, 1.66; 95% CI, 1.03-2.67). 

No significant associations were found between eating duration and all-cause or cancer mortality in the overall sample and CVD/cancer subsamples, except that eating duration of more than 16 hours was associated with a lower risk for cancer mortality in people with cancer (HR, 0.47; 95% CI, 0.23-0.95).
 

Quality More Important Than Timing 

Dr. Zhong noted that the study doesn’t address the underlying mechanisms driving the observed association between 8-hour TRE and CV death. 

“However, we did observe that people who restricted eating to a period less than 8 hours per day had less lean muscle mass compared with those with typical eating duration of 12-16 hours. Loss of lean body mass has been linked to higher risk of cardiovascular mortality,” Dr. Zhong said. 

“Based on the evidence as of now, focusing on what people eat appears to be more important than focusing on the time when they eat. There are certain dietary approaches with compelling health benefits to choose, such as DASH diet and Mediterranean diet,” Dr. Zhong said.

Intermittent fasting is “certainly an interesting concept and one on which the potential mechanisms underlying the improvements in short outcome studies and preclinical studies in animals are strongly being pursued,” Sean P. Heffron, MD, cardiologist at the Center for the Prevention of Cardiovascular Disease at NYU Langone Heart, New York, who wasn’t involved in the study, told this news organization. 

Dr. Heffron expressed skepticism about the study results calling them “far from complete” and noted that data on diet was based on only 2-day diet records without correction for confounding variables. 

Dr. Heffron also noted that the restricted diet group has more smokers and more men. “I would “strongly anticipate that once appropriate corrections are made, the findings will no longer persist in statistical significance,” Dr. Heffron said.

He emphasized the need for more rigorous research before making clinical recommendations. When patients ask about intermittent fasting, Dr. Heffron said he tells them, “If it works for you, that’s fine,” but he doesn’t provide a recommendation for or against it. 

Funding for the study was provided by the National Key Research and Development Program of China and the National Science Foundation of China. Zhong, Dr. Heffron and Dr. Gardner have no relevant disclosures.
 

A version of this article appeared on Medscape.com.

A new study raises a cautionary note on time-restricted eating (TRE), a type of intermittent fasting that is gaining popularity.

The observational analysis of over 20,000 US adults showed that those who limited their eating to a period of less than 8 hours per day had a higher risk for cardiovascular mortality compared with peers who ate across the typical 12-16 hours per day. This was the case in the overall sample and in those with cardiovascular disease (CVD) or cancer.

Lead author Victor Wenze Zhong, PhD, cautioned that the findings “require replication and we cannot demonstrate 8-hour TRE causes cardiovascular death in this observational study.

“However, it’s important for patients, particularly those with existing heart conditions or cancer, to be aware of the positive association between an 8-hour eating window and cardiovascular death,” Dr. Zhong, professor and chair, Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China, told this news organization. 

The results (Abstract P192) were presented March 18 at the American Heart Association (AHA) Epidemiology and Prevention/Lifestyle and Cardiometabolic Health Scientific Sessions 2024.
 

‘Provocative’ Results 

Short-term randomized controlled trials have suggested that 8-hour TRE may improve cardiometabolic risk profiles, but the potential long-term effects of this eating pattern are unknown. 

The observation that TRE may have short-term benefits but long-term adverse effects is “interesting and provocative” and needs further study, Christopher D. Gardner, PhD, professor of medicine at Stanford University in California, who wasn’t involved in the study, said in a conference statement, and he agreed that much more research is needed. 

The researchers analyzed data on dietary patterns for 20,078 adults (mean age, 48 years; 50% men; 73% non-Hispanic White) who participated in the 2003-2018 National Health and Nutrition Examination Surveys (NHANES). All of them completed two 24-hour dietary recall questionnaires within the first year of enrollment. Deaths through the end of 2019 were determined via the National Death Index.

During a median follow-up of 8 years, there were 2797 deaths due to any cause, including 840 CV deaths and 643 cancer deaths. 

In the overall sample, compared with an eating duration of 12-16 hours, 8-hour TRE was significantly associated with an increased risk for CV mortality (hazard ratio [HR], 1.91; 95% CI, 1.20-3.03).

This association was also observed in adults with CVD (HR, 2.07; 95% CI, 1.14-3.78) and adults with cancer (HR, 3.04; 95% CI, 1.44-6.41). 

Other eating durations were not associated with CV mortality, except for eating duration of 8 to less than 10 hours in people with CVD (HR, 1.66; 95% CI, 1.03-2.67). 

No significant associations were found between eating duration and all-cause or cancer mortality in the overall sample and CVD/cancer subsamples, except that eating duration of more than 16 hours was associated with a lower risk for cancer mortality in people with cancer (HR, 0.47; 95% CI, 0.23-0.95).
 

Quality More Important Than Timing 

Dr. Zhong noted that the study doesn’t address the underlying mechanisms driving the observed association between 8-hour TRE and CV death. 

“However, we did observe that people who restricted eating to a period less than 8 hours per day had less lean muscle mass compared with those with typical eating duration of 12-16 hours. Loss of lean body mass has been linked to higher risk of cardiovascular mortality,” Dr. Zhong said. 

“Based on the evidence as of now, focusing on what people eat appears to be more important than focusing on the time when they eat. There are certain dietary approaches with compelling health benefits to choose, such as DASH diet and Mediterranean diet,” Dr. Zhong said.

Intermittent fasting is “certainly an interesting concept and one on which the potential mechanisms underlying the improvements in short outcome studies and preclinical studies in animals are strongly being pursued,” Sean P. Heffron, MD, cardiologist at the Center for the Prevention of Cardiovascular Disease at NYU Langone Heart, New York, who wasn’t involved in the study, told this news organization. 

Dr. Heffron expressed skepticism about the study results calling them “far from complete” and noted that data on diet was based on only 2-day diet records without correction for confounding variables. 

Dr. Heffron also noted that the restricted diet group has more smokers and more men. “I would “strongly anticipate that once appropriate corrections are made, the findings will no longer persist in statistical significance,” Dr. Heffron said.

He emphasized the need for more rigorous research before making clinical recommendations. When patients ask about intermittent fasting, Dr. Heffron said he tells them, “If it works for you, that’s fine,” but he doesn’t provide a recommendation for or against it. 

Funding for the study was provided by the National Key Research and Development Program of China and the National Science Foundation of China. Zhong, Dr. Heffron and Dr. Gardner have no relevant disclosures.
 

A version of this article appeared on Medscape.com.

A new study raises a cautionary note on time-restricted eating (TRE), a type of intermittent fasting that is gaining popularity.

The observational analysis of over 20,000 US adults showed that those who limited their eating to a period of less than 8 hours per day had a higher risk for cardiovascular mortality compared with peers who ate across the typical 12-16 hours per day. This was the case in the overall sample and in those with cardiovascular disease (CVD) or cancer.

Lead author Victor Wenze Zhong, PhD, cautioned that the findings “require replication and we cannot demonstrate 8-hour TRE causes cardiovascular death in this observational study.

“However, it’s important for patients, particularly those with existing heart conditions or cancer, to be aware of the positive association between an 8-hour eating window and cardiovascular death,” Dr. Zhong, professor and chair, Department of Epidemiology and Biostatistics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China, told this news organization. 

The results (Abstract P192) were presented March 18 at the American Heart Association (AHA) Epidemiology and Prevention/Lifestyle and Cardiometabolic Health Scientific Sessions 2024.
 

‘Provocative’ Results 

Short-term randomized controlled trials have suggested that 8-hour TRE may improve cardiometabolic risk profiles, but the potential long-term effects of this eating pattern are unknown. 

The observation that TRE may have short-term benefits but long-term adverse effects is “interesting and provocative” and needs further study, Christopher D. Gardner, PhD, professor of medicine at Stanford University in California, who wasn’t involved in the study, said in a conference statement, and he agreed that much more research is needed. 

The researchers analyzed data on dietary patterns for 20,078 adults (mean age, 48 years; 50% men; 73% non-Hispanic White) who participated in the 2003-2018 National Health and Nutrition Examination Surveys (NHANES). All of them completed two 24-hour dietary recall questionnaires within the first year of enrollment. Deaths through the end of 2019 were determined via the National Death Index.

During a median follow-up of 8 years, there were 2797 deaths due to any cause, including 840 CV deaths and 643 cancer deaths. 

In the overall sample, compared with an eating duration of 12-16 hours, 8-hour TRE was significantly associated with an increased risk for CV mortality (hazard ratio [HR], 1.91; 95% CI, 1.20-3.03).

This association was also observed in adults with CVD (HR, 2.07; 95% CI, 1.14-3.78) and adults with cancer (HR, 3.04; 95% CI, 1.44-6.41). 

Other eating durations were not associated with CV mortality, except for eating duration of 8 to less than 10 hours in people with CVD (HR, 1.66; 95% CI, 1.03-2.67). 

No significant associations were found between eating duration and all-cause or cancer mortality in the overall sample and CVD/cancer subsamples, except that eating duration of more than 16 hours was associated with a lower risk for cancer mortality in people with cancer (HR, 0.47; 95% CI, 0.23-0.95).
 

Quality More Important Than Timing 

Dr. Zhong noted that the study doesn’t address the underlying mechanisms driving the observed association between 8-hour TRE and CV death. 

“However, we did observe that people who restricted eating to a period less than 8 hours per day had less lean muscle mass compared with those with typical eating duration of 12-16 hours. Loss of lean body mass has been linked to higher risk of cardiovascular mortality,” Dr. Zhong said. 

“Based on the evidence as of now, focusing on what people eat appears to be more important than focusing on the time when they eat. There are certain dietary approaches with compelling health benefits to choose, such as DASH diet and Mediterranean diet,” Dr. Zhong said.

Intermittent fasting is “certainly an interesting concept and one on which the potential mechanisms underlying the improvements in short outcome studies and preclinical studies in animals are strongly being pursued,” Sean P. Heffron, MD, cardiologist at the Center for the Prevention of Cardiovascular Disease at NYU Langone Heart, New York, who wasn’t involved in the study, told this news organization. 

Dr. Heffron expressed skepticism about the study results calling them “far from complete” and noted that data on diet was based on only 2-day diet records without correction for confounding variables. 

Dr. Heffron also noted that the restricted diet group has more smokers and more men. “I would “strongly anticipate that once appropriate corrections are made, the findings will no longer persist in statistical significance,” Dr. Heffron said.

He emphasized the need for more rigorous research before making clinical recommendations. When patients ask about intermittent fasting, Dr. Heffron said he tells them, “If it works for you, that’s fine,” but he doesn’t provide a recommendation for or against it. 

Funding for the study was provided by the National Key Research and Development Program of China and the National Science Foundation of China. Zhong, Dr. Heffron and Dr. Gardner have no relevant disclosures.
 

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Rachel S. Rubin, MD: We are here at the Harvard Continuing Medical Education Course in Orlando, Florida. It’s all about testosterone therapy and sexual medicine. I have with me today the wonderful Dr. Marianne Brandon, who is an amazing sex therapist. Could you introduce yourself?

Marianne Brandon, PhD: I am a clinical psychologist and sex therapist. I’ve been in practice for more than 25 years. I’m currently located in Sarasota. I have a Psychology Today blog called The Future of Intimacy, which I have a lot of fun with.

Dr. Rubin: It’s very important, when taking care of patients, that we work in a biopsychosocial model. Yes, we can fix erectile dysfunction. We can help with menopause symptoms and that helps sexual function. But what I find makes my patients able to live their best lives is when they have a team, including a mental health professional — often a sex therapist or a couples’ therapist — where they can learn communication skills. Why is it important for primary care doctors to talk to their patients about sex? My primary care doctor has never asked me about sex.  

Dr. Brandon: For most people, sexual intimacy is critical for their experience of life. It correlates with their relationship satisfaction and life satisfaction. It’s much bigger than what’s happening in the bedroom. People have more struggles than you realize. Sexual dysfunction correlates with emotional issues such as depression and anxiety, with medical problems, and with medication use. Chances are that your patients have some kind of sexual concern, even if that’s not to the degree that it would be classified as a sexual dysfunction.

But sexual concerns wreak havoc. Believing they have a sexual problem, they stop touching, they stop relating to their partner. It becomes a really big deal in their lives. If you can open the door for a conversation about sex with your patients, it could do them a great deal of good. It’s also good for the practitioner, because if your patients think they can talk with you about anything, that’s going to establish your relationship with them. Practitioners avoid these conversations because they don’t have the time or the training to offer help.

Dr. Rubin: You don’t have to know all the answers. You just have to show empathy and compassion and say, “I hear you.” That’s the magic in the doctor-patient relationship. We refer patients to specialists when we don’t know what to do. What happens when I send a patient to a sex therapist? Do they watch them have sex? Of course not, but everyone thinks that is what sex therapists do.

Dr. Brandon: Sex therapy is just like any other type of therapy, but we discuss sexual issues. And because just about anything that’s happening in your patient’s life can trickle down into the bedroom, we end up talking about a lot of stuff that’s not directly related to sex but ultimately impacts the patient’s sex life.

Dr. Rubin: It’s true. Most medical conditions that we treat — from diabetes, hypertension, high cholesterol, and obesity to depression and anxiety — are strongly correlated with sexual health. We treat the underlying condition, but our patients don’t care about their A1c levels. They care about the fact that they cannot get aroused; their genitals don’t feel the same way they used to.

Dr. Brandon: I love that point because people make meaning out of their sexual concerns and dysfunction. Suddenly their body isn’t responding the way it used to. They think something’s wrong with them, or maybe they are with the wrong partner. This meaning becomes very powerful in their mind and perpetuates the sexual problem.

Dr. Rubin: First and foremost, we are educators. We can say, “You have pretty out-of-control diabetes,” or, “You’re a smoker, which can affect the health of your genitals. Have you noticed any issues going on there?” If you don’t ask, patients will not bring up their concerns with their doctors.

So how do people find a sex therapist?

Dr. Brandon: There are a few fabulous organizations that provide on their websites ways to find a therapist: the American Association of Sex Educators, Counselors and Therapists (AASECT) and Sex Therapy and Research (STAR). Giving patients this information is a huge intervention.

Other places to find a therapist include the International Society for Sexual Medicine, and the International Society for the Study of Women’s Sexual Health.

Since COVID, many therapists have gone virtual. Encourage your patients to look within their states to find options for therapists and psychologists. Recent legislation allows psychologists who have signed up for PSYPACT to practice almost throughout the entire United States. We used to think if we didn’t have a therapist in the community, we couldn’t make a referral. That›s not the case anymore.

Dr. Rubin: All doctors are really sexual medicine doctors. We can change the whole world by giving our patients a better quality of life.
 

Dr. Rubin, Assistant Clinical Professor, Department of Urology, Georgetown University, Washington, disclosed ties to Sprout, Maternal Medical, Absorption Pharmaceuticals, GlaxoSmithKline, and Endo.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Rachel S. Rubin, MD: We are here at the Harvard Continuing Medical Education Course in Orlando, Florida. It’s all about testosterone therapy and sexual medicine. I have with me today the wonderful Dr. Marianne Brandon, who is an amazing sex therapist. Could you introduce yourself?

Marianne Brandon, PhD: I am a clinical psychologist and sex therapist. I’ve been in practice for more than 25 years. I’m currently located in Sarasota. I have a Psychology Today blog called The Future of Intimacy, which I have a lot of fun with.

Dr. Rubin: It’s very important, when taking care of patients, that we work in a biopsychosocial model. Yes, we can fix erectile dysfunction. We can help with menopause symptoms and that helps sexual function. But what I find makes my patients able to live their best lives is when they have a team, including a mental health professional — often a sex therapist or a couples’ therapist — where they can learn communication skills. Why is it important for primary care doctors to talk to their patients about sex? My primary care doctor has never asked me about sex.  

Dr. Brandon: For most people, sexual intimacy is critical for their experience of life. It correlates with their relationship satisfaction and life satisfaction. It’s much bigger than what’s happening in the bedroom. People have more struggles than you realize. Sexual dysfunction correlates with emotional issues such as depression and anxiety, with medical problems, and with medication use. Chances are that your patients have some kind of sexual concern, even if that’s not to the degree that it would be classified as a sexual dysfunction.

But sexual concerns wreak havoc. Believing they have a sexual problem, they stop touching, they stop relating to their partner. It becomes a really big deal in their lives. If you can open the door for a conversation about sex with your patients, it could do them a great deal of good. It’s also good for the practitioner, because if your patients think they can talk with you about anything, that’s going to establish your relationship with them. Practitioners avoid these conversations because they don’t have the time or the training to offer help.

Dr. Rubin: You don’t have to know all the answers. You just have to show empathy and compassion and say, “I hear you.” That’s the magic in the doctor-patient relationship. We refer patients to specialists when we don’t know what to do. What happens when I send a patient to a sex therapist? Do they watch them have sex? Of course not, but everyone thinks that is what sex therapists do.

Dr. Brandon: Sex therapy is just like any other type of therapy, but we discuss sexual issues. And because just about anything that’s happening in your patient’s life can trickle down into the bedroom, we end up talking about a lot of stuff that’s not directly related to sex but ultimately impacts the patient’s sex life.

Dr. Rubin: It’s true. Most medical conditions that we treat — from diabetes, hypertension, high cholesterol, and obesity to depression and anxiety — are strongly correlated with sexual health. We treat the underlying condition, but our patients don’t care about their A1c levels. They care about the fact that they cannot get aroused; their genitals don’t feel the same way they used to.

Dr. Brandon: I love that point because people make meaning out of their sexual concerns and dysfunction. Suddenly their body isn’t responding the way it used to. They think something’s wrong with them, or maybe they are with the wrong partner. This meaning becomes very powerful in their mind and perpetuates the sexual problem.

Dr. Rubin: First and foremost, we are educators. We can say, “You have pretty out-of-control diabetes,” or, “You’re a smoker, which can affect the health of your genitals. Have you noticed any issues going on there?” If you don’t ask, patients will not bring up their concerns with their doctors.

So how do people find a sex therapist?

Dr. Brandon: There are a few fabulous organizations that provide on their websites ways to find a therapist: the American Association of Sex Educators, Counselors and Therapists (AASECT) and Sex Therapy and Research (STAR). Giving patients this information is a huge intervention.

Other places to find a therapist include the International Society for Sexual Medicine, and the International Society for the Study of Women’s Sexual Health.

Since COVID, many therapists have gone virtual. Encourage your patients to look within their states to find options for therapists and psychologists. Recent legislation allows psychologists who have signed up for PSYPACT to practice almost throughout the entire United States. We used to think if we didn’t have a therapist in the community, we couldn’t make a referral. That›s not the case anymore.

Dr. Rubin: All doctors are really sexual medicine doctors. We can change the whole world by giving our patients a better quality of life.
 

Dr. Rubin, Assistant Clinical Professor, Department of Urology, Georgetown University, Washington, disclosed ties to Sprout, Maternal Medical, Absorption Pharmaceuticals, GlaxoSmithKline, and Endo.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Rachel S. Rubin, MD: We are here at the Harvard Continuing Medical Education Course in Orlando, Florida. It’s all about testosterone therapy and sexual medicine. I have with me today the wonderful Dr. Marianne Brandon, who is an amazing sex therapist. Could you introduce yourself?

Marianne Brandon, PhD: I am a clinical psychologist and sex therapist. I’ve been in practice for more than 25 years. I’m currently located in Sarasota. I have a Psychology Today blog called The Future of Intimacy, which I have a lot of fun with.

Dr. Rubin: It’s very important, when taking care of patients, that we work in a biopsychosocial model. Yes, we can fix erectile dysfunction. We can help with menopause symptoms and that helps sexual function. But what I find makes my patients able to live their best lives is when they have a team, including a mental health professional — often a sex therapist or a couples’ therapist — where they can learn communication skills. Why is it important for primary care doctors to talk to their patients about sex? My primary care doctor has never asked me about sex.  

Dr. Brandon: For most people, sexual intimacy is critical for their experience of life. It correlates with their relationship satisfaction and life satisfaction. It’s much bigger than what’s happening in the bedroom. People have more struggles than you realize. Sexual dysfunction correlates with emotional issues such as depression and anxiety, with medical problems, and with medication use. Chances are that your patients have some kind of sexual concern, even if that’s not to the degree that it would be classified as a sexual dysfunction.

But sexual concerns wreak havoc. Believing they have a sexual problem, they stop touching, they stop relating to their partner. It becomes a really big deal in their lives. If you can open the door for a conversation about sex with your patients, it could do them a great deal of good. It’s also good for the practitioner, because if your patients think they can talk with you about anything, that’s going to establish your relationship with them. Practitioners avoid these conversations because they don’t have the time or the training to offer help.

Dr. Rubin: You don’t have to know all the answers. You just have to show empathy and compassion and say, “I hear you.” That’s the magic in the doctor-patient relationship. We refer patients to specialists when we don’t know what to do. What happens when I send a patient to a sex therapist? Do they watch them have sex? Of course not, but everyone thinks that is what sex therapists do.

Dr. Brandon: Sex therapy is just like any other type of therapy, but we discuss sexual issues. And because just about anything that’s happening in your patient’s life can trickle down into the bedroom, we end up talking about a lot of stuff that’s not directly related to sex but ultimately impacts the patient’s sex life.

Dr. Rubin: It’s true. Most medical conditions that we treat — from diabetes, hypertension, high cholesterol, and obesity to depression and anxiety — are strongly correlated with sexual health. We treat the underlying condition, but our patients don’t care about their A1c levels. They care about the fact that they cannot get aroused; their genitals don’t feel the same way they used to.

Dr. Brandon: I love that point because people make meaning out of their sexual concerns and dysfunction. Suddenly their body isn’t responding the way it used to. They think something’s wrong with them, or maybe they are with the wrong partner. This meaning becomes very powerful in their mind and perpetuates the sexual problem.

Dr. Rubin: First and foremost, we are educators. We can say, “You have pretty out-of-control diabetes,” or, “You’re a smoker, which can affect the health of your genitals. Have you noticed any issues going on there?” If you don’t ask, patients will not bring up their concerns with their doctors.

So how do people find a sex therapist?

Dr. Brandon: There are a few fabulous organizations that provide on their websites ways to find a therapist: the American Association of Sex Educators, Counselors and Therapists (AASECT) and Sex Therapy and Research (STAR). Giving patients this information is a huge intervention.

Other places to find a therapist include the International Society for Sexual Medicine, and the International Society for the Study of Women’s Sexual Health.

Since COVID, many therapists have gone virtual. Encourage your patients to look within their states to find options for therapists and psychologists. Recent legislation allows psychologists who have signed up for PSYPACT to practice almost throughout the entire United States. We used to think if we didn’t have a therapist in the community, we couldn’t make a referral. That›s not the case anymore.

Dr. Rubin: All doctors are really sexual medicine doctors. We can change the whole world by giving our patients a better quality of life.
 

Dr. Rubin, Assistant Clinical Professor, Department of Urology, Georgetown University, Washington, disclosed ties to Sprout, Maternal Medical, Absorption Pharmaceuticals, GlaxoSmithKline, and Endo.

A version of this article appeared on Medscape.com.

Physiotherapy conducted via video conference is noninferior to in-person sessions for the treatment of chronic knee pain, according to new research.

In the trial, participants assigned to in-person or telehealth sessions had similar improvements in knee pain and physical function over 3 months, while the online group had better session attendance and reported higher convenience.

While the COVID-19 pandemic increased the use of telerehabilitation physiotherapy services, it is not clear how these teleservices will be utilized moving forward, the study authors wrote. There is some research suggesting that both in-person and online physiotherapy are equally effective, but surveys suggest that both providers and patients remain unconvinced.

“Based on pandemic telerehabilitation experiences, less than half of allied health clinicians believe telerehabilitation is as effective as in-person care and almost half of patients think video conferencing with a physiotherapist provides lower quality care,” study first author Rana Hinman, PhD, professor of physiotherapy at the University of Melbourne, Australia, and colleagues wrote in their report published online in The Lancet.
 

‘A Game Changer’ for Physical Therapy

Commenting on the study for this news organization, Daniel White, ScD, an associate professor in the department of physical therapy at the University of Delaware in Newark, Delaware, called the research “a game changer” for physical therapy. 

“It’s showing that in-person care can be replicated in terms of efficacy,” in telehealth settings, he said. “From a telehealth perspective, it really opens the doors to access to people who have difficulty reaching physical therapists,” he added, “and puts us on stage with other modes of telehealth that are given as part of modern medicine.”

Dr. White noted that physical therapy treatment for knee osteoarthritis is underused, with just 10% of patients seeing a physical therapist prior to undergoing knee replacement. While knee replacements are effective interventions, he said, access to physical therapy could allow many patients to put off having surgery.

The findings not only provide solutions for access issues but also assuage concerns “that you’re going to get ‘physical therapy lite’” with telehealth, Dr. White added. 

“You can deliver physical therapy to this group that typically is not getting enough of it,” he said, “and it is just as effective when delivered online than if it were to be delivered in person.”
 

Noninferiority Maintained at 9 Months’ Follow-up

To understand how video conferencing physiotherapy consultations compared to in-person care, the researchers designed a non-inferiority randomized controlled trial. 

For the trial, researchers enrolled 394 adults with chronic knee pain who were aged ≥ 45 years, had activity-related joint pain, and either had no morning stiffness or morning stiffness lasting < 30 minutes. Other inclusion criteria were history of knee pain of ≥ 3 months, knee pain most days of the previous month, average walking pain score of four or more on the 11-point numeric rating scale (NRS) over the previous week, and difficulty walking and climbing stairs.

Participants also needed access to a computer device with internet as well as the ability to travel to the nearest trial physiotherapist.

The study recruited 15 physiotherapists across 27 practices in metropolitan Queensland and Victoria, Australia, of which 60% had no previous telerehabilitation experience. Physiotherapists were trained to conduct video sessions via e-learning, practice video consultations, and a competency video conferencing evaluation.

Participants were randomly assigned to in-person or video physiotherapist consultations, with both groups receiving five consultations over 3 months. All clients were prescribed a home-based strength training program and physical activity plan.

The primary outcomes were changes at 3 months in patient-reported knee pain (on a scale of 0-10), with an inferiority margin of 0.95, and physical function — assessed using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) — with an inferiority margin of −5.44.

From December 10, 2019, to June 17, 2022, 204 participants were assigned to in-person sessions and 190 were assigned to telerehabilitation. At 3 months, both groups reported improved pain and physical function, with no significant differences between the two groups with either measure. The mean between-group difference was 0.16 (95% CI, −0.26 to 0.57) for knee pain and 1.65 (−0.23 to 3.53) for physical function. Noninferiority was also maintained at 9 months’ follow-up.

The trial took place over the COVID-19 pandemic, which limited participant ability to attend in-person consultations. In total, 84% of participants assigned to in-person rehabilitation attended at least three or more consultations compared with 96% of those assigned to telerehabilitation. In an additional analysis including only participants attending three or more sessions, improvement in knee pain and physical function was similar between the in-person or tele-rehabilitation groups “showing that the findings are robust,” the authors noted.

At 3 months, the telerehabilitation group ranked their sessions as more convenient that their in-person counterparts and reported greater adherence to their strengthening program. At 9 months’ follow-up, the telerehabilitation group had higher physical activity scores than the in-person group.

This research was funded by the Australian National Health and Medical Research Council. Two authors reported grant funding paid to the University of Melbourne from the National Health & Medical Research Council, Australian Research Council, Medical Research Future Fund, and Medibank for research. Dr. White has been a paid speaker for Viatris.

A version of this article appeared on Medscape.com.

Physiotherapy conducted via video conference is noninferior to in-person sessions for the treatment of chronic knee pain, according to new research.

In the trial, participants assigned to in-person or telehealth sessions had similar improvements in knee pain and physical function over 3 months, while the online group had better session attendance and reported higher convenience.

While the COVID-19 pandemic increased the use of telerehabilitation physiotherapy services, it is not clear how these teleservices will be utilized moving forward, the study authors wrote. There is some research suggesting that both in-person and online physiotherapy are equally effective, but surveys suggest that both providers and patients remain unconvinced.

“Based on pandemic telerehabilitation experiences, less than half of allied health clinicians believe telerehabilitation is as effective as in-person care and almost half of patients think video conferencing with a physiotherapist provides lower quality care,” study first author Rana Hinman, PhD, professor of physiotherapy at the University of Melbourne, Australia, and colleagues wrote in their report published online in The Lancet.
 

‘A Game Changer’ for Physical Therapy

Commenting on the study for this news organization, Daniel White, ScD, an associate professor in the department of physical therapy at the University of Delaware in Newark, Delaware, called the research “a game changer” for physical therapy. 

“It’s showing that in-person care can be replicated in terms of efficacy,” in telehealth settings, he said. “From a telehealth perspective, it really opens the doors to access to people who have difficulty reaching physical therapists,” he added, “and puts us on stage with other modes of telehealth that are given as part of modern medicine.”

Dr. White noted that physical therapy treatment for knee osteoarthritis is underused, with just 10% of patients seeing a physical therapist prior to undergoing knee replacement. While knee replacements are effective interventions, he said, access to physical therapy could allow many patients to put off having surgery.

The findings not only provide solutions for access issues but also assuage concerns “that you’re going to get ‘physical therapy lite’” with telehealth, Dr. White added. 

“You can deliver physical therapy to this group that typically is not getting enough of it,” he said, “and it is just as effective when delivered online than if it were to be delivered in person.”
 

Noninferiority Maintained at 9 Months’ Follow-up

To understand how video conferencing physiotherapy consultations compared to in-person care, the researchers designed a non-inferiority randomized controlled trial. 

For the trial, researchers enrolled 394 adults with chronic knee pain who were aged ≥ 45 years, had activity-related joint pain, and either had no morning stiffness or morning stiffness lasting < 30 minutes. Other inclusion criteria were history of knee pain of ≥ 3 months, knee pain most days of the previous month, average walking pain score of four or more on the 11-point numeric rating scale (NRS) over the previous week, and difficulty walking and climbing stairs.

Participants also needed access to a computer device with internet as well as the ability to travel to the nearest trial physiotherapist.

The study recruited 15 physiotherapists across 27 practices in metropolitan Queensland and Victoria, Australia, of which 60% had no previous telerehabilitation experience. Physiotherapists were trained to conduct video sessions via e-learning, practice video consultations, and a competency video conferencing evaluation.

Participants were randomly assigned to in-person or video physiotherapist consultations, with both groups receiving five consultations over 3 months. All clients were prescribed a home-based strength training program and physical activity plan.

The primary outcomes were changes at 3 months in patient-reported knee pain (on a scale of 0-10), with an inferiority margin of 0.95, and physical function — assessed using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) — with an inferiority margin of −5.44.

From December 10, 2019, to June 17, 2022, 204 participants were assigned to in-person sessions and 190 were assigned to telerehabilitation. At 3 months, both groups reported improved pain and physical function, with no significant differences between the two groups with either measure. The mean between-group difference was 0.16 (95% CI, −0.26 to 0.57) for knee pain and 1.65 (−0.23 to 3.53) for physical function. Noninferiority was also maintained at 9 months’ follow-up.

The trial took place over the COVID-19 pandemic, which limited participant ability to attend in-person consultations. In total, 84% of participants assigned to in-person rehabilitation attended at least three or more consultations compared with 96% of those assigned to telerehabilitation. In an additional analysis including only participants attending three or more sessions, improvement in knee pain and physical function was similar between the in-person or tele-rehabilitation groups “showing that the findings are robust,” the authors noted.

At 3 months, the telerehabilitation group ranked their sessions as more convenient that their in-person counterparts and reported greater adherence to their strengthening program. At 9 months’ follow-up, the telerehabilitation group had higher physical activity scores than the in-person group.

This research was funded by the Australian National Health and Medical Research Council. Two authors reported grant funding paid to the University of Melbourne from the National Health & Medical Research Council, Australian Research Council, Medical Research Future Fund, and Medibank for research. Dr. White has been a paid speaker for Viatris.

A version of this article appeared on Medscape.com.

Physiotherapy conducted via video conference is noninferior to in-person sessions for the treatment of chronic knee pain, according to new research.

In the trial, participants assigned to in-person or telehealth sessions had similar improvements in knee pain and physical function over 3 months, while the online group had better session attendance and reported higher convenience.

While the COVID-19 pandemic increased the use of telerehabilitation physiotherapy services, it is not clear how these teleservices will be utilized moving forward, the study authors wrote. There is some research suggesting that both in-person and online physiotherapy are equally effective, but surveys suggest that both providers and patients remain unconvinced.

“Based on pandemic telerehabilitation experiences, less than half of allied health clinicians believe telerehabilitation is as effective as in-person care and almost half of patients think video conferencing with a physiotherapist provides lower quality care,” study first author Rana Hinman, PhD, professor of physiotherapy at the University of Melbourne, Australia, and colleagues wrote in their report published online in The Lancet.
 

‘A Game Changer’ for Physical Therapy

Commenting on the study for this news organization, Daniel White, ScD, an associate professor in the department of physical therapy at the University of Delaware in Newark, Delaware, called the research “a game changer” for physical therapy. 

“It’s showing that in-person care can be replicated in terms of efficacy,” in telehealth settings, he said. “From a telehealth perspective, it really opens the doors to access to people who have difficulty reaching physical therapists,” he added, “and puts us on stage with other modes of telehealth that are given as part of modern medicine.”

Dr. White noted that physical therapy treatment for knee osteoarthritis is underused, with just 10% of patients seeing a physical therapist prior to undergoing knee replacement. While knee replacements are effective interventions, he said, access to physical therapy could allow many patients to put off having surgery.

The findings not only provide solutions for access issues but also assuage concerns “that you’re going to get ‘physical therapy lite’” with telehealth, Dr. White added. 

“You can deliver physical therapy to this group that typically is not getting enough of it,” he said, “and it is just as effective when delivered online than if it were to be delivered in person.”
 

Noninferiority Maintained at 9 Months’ Follow-up

To understand how video conferencing physiotherapy consultations compared to in-person care, the researchers designed a non-inferiority randomized controlled trial. 

For the trial, researchers enrolled 394 adults with chronic knee pain who were aged ≥ 45 years, had activity-related joint pain, and either had no morning stiffness or morning stiffness lasting < 30 minutes. Other inclusion criteria were history of knee pain of ≥ 3 months, knee pain most days of the previous month, average walking pain score of four or more on the 11-point numeric rating scale (NRS) over the previous week, and difficulty walking and climbing stairs.

Participants also needed access to a computer device with internet as well as the ability to travel to the nearest trial physiotherapist.

The study recruited 15 physiotherapists across 27 practices in metropolitan Queensland and Victoria, Australia, of which 60% had no previous telerehabilitation experience. Physiotherapists were trained to conduct video sessions via e-learning, practice video consultations, and a competency video conferencing evaluation.

Participants were randomly assigned to in-person or video physiotherapist consultations, with both groups receiving five consultations over 3 months. All clients were prescribed a home-based strength training program and physical activity plan.

The primary outcomes were changes at 3 months in patient-reported knee pain (on a scale of 0-10), with an inferiority margin of 0.95, and physical function — assessed using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) — with an inferiority margin of −5.44.

From December 10, 2019, to June 17, 2022, 204 participants were assigned to in-person sessions and 190 were assigned to telerehabilitation. At 3 months, both groups reported improved pain and physical function, with no significant differences between the two groups with either measure. The mean between-group difference was 0.16 (95% CI, −0.26 to 0.57) for knee pain and 1.65 (−0.23 to 3.53) for physical function. Noninferiority was also maintained at 9 months’ follow-up.

The trial took place over the COVID-19 pandemic, which limited participant ability to attend in-person consultations. In total, 84% of participants assigned to in-person rehabilitation attended at least three or more consultations compared with 96% of those assigned to telerehabilitation. In an additional analysis including only participants attending three or more sessions, improvement in knee pain and physical function was similar between the in-person or tele-rehabilitation groups “showing that the findings are robust,” the authors noted.

At 3 months, the telerehabilitation group ranked their sessions as more convenient that their in-person counterparts and reported greater adherence to their strengthening program. At 9 months’ follow-up, the telerehabilitation group had higher physical activity scores than the in-person group.

This research was funded by the Australian National Health and Medical Research Council. Two authors reported grant funding paid to the University of Melbourne from the National Health & Medical Research Council, Australian Research Council, Medical Research Future Fund, and Medibank for research. Dr. White has been a paid speaker for Viatris.

A version of this article appeared on Medscape.com.

“No greater opportunity, responsibility, or obligation can fall to the lot of a human being than to become a physician. In the care of the suffering, [the physician] needs technical skill, scientific knowledge, and human understanding.”¹ Internal medicine physicians have risen to this challenge for centuries. Today, it is time for us to use these skills to care for patients who need access to reproductive care — particularly medication abortion. Nationally accredited internal medicine training programs have not been required to provide abortion education, and this may evolve in the future.

However, considering the difficulty in people receiving contraception, the failure rate of contraception, the known risks from pregnancy, the increasing difficulty in accessing abortion, and the recent advocating to protect access to reproductive care by leadership of internal medicine and internal medicine subspecialty societies, we advocate that abortion must become a part of our education and practice.²

Most abortions are performed during the first trimester and can be managed with medications that are very safe.³ In fact, legal medication abortion is so safe that pregnancy in the United States has fourteen times the mortality risk as does legal medication abortion.⁴ Inability to access an abortion has widely documented negative health effects for women and their children.^5,6

Within this context, it is important for internal medicine physicians to understand that the ability to access an abortion is the ability to access a life-saving procedure and there is no medical justification for restricting such a prescription any more than restricting any other standard medical therapy. Furthermore, the recent widespread criminalization of abortion gives new urgency to expanding the pool of physicians who understand this and are trained, able, and willing to prescribe medication abortion.

We understand that reproductive health care may not now be a component of clinical practice for some, but given the heterogeneity of internal medicine, we believe that some knowledge about medical abortion is an essential competency of foundational medical knowledge.⁷ The heterogeneity of practice in internal medicine lends itself to different levels of knowledge that should be embraced. Because of poor access to abortion, both ambulatory and hospital-based physicians will increasingly be required to care for patients who need abortion for medical or other reasons.

We advocate that all physicians — including those with internal medicine training — should understand counseling about choices and options (including an unbiased discussion of the options to continue or terminate the pregnancy), the safety of medication abortion in contrast to the risks from pregnancy, and where to refer someone seeking an abortion. In addition to this information, primary care physicians with a special interest in women’s health must have basic knowledge about mifepristone and misoprostol and how they work, the benefits and risks of these, and what the pregnant person seeking an abortion will experience.⁸

Lastly, physicians who wish to provide medication abortion — including in primary care, hospital medicine, and subspecialty care — should receive training and ongoing professional development. Such professional development should include counseling, indications, contraindications, medication regimens, navigating required documentation and reporting, and anticipating possible side effects and complications.

A major challenge to internal medicine and other primary care physicians, subspecialists, and hospitalists addressing abortion is the inadequate training in and knowledge about providing this care. However, the entire spectrum of medical education (undergraduate, graduate, and continuing education) should evolve to address this lack.

Integrating this education into medical conferences and journals is a meaningful start, possibly in partnership with medical societies that have been teaching these skills for decades. Partnering with other specialties can also help us stay current on the local legal landscape and engage in collaborative advocacy.

Specifically, some resources for training can be found at:

• www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2014/11/abortion-training-and-education
• https://prochoice.org/providers/continuing-medical-education/
• www.reproductiveaccess.org/medicationabortion/

Some may have concerns that managing the possible complications of medication abortion is a reason for internal medicine to not be involved in abortion care. However, medication abortions are safe and effective for pregnancy termination and internal medicine physicians can refer patients with complications to peers in gynecology, family medicine, and emergency medicine should complications arise.^{8 We have} managed countless other conditions this way, including most recently during the pandemic.

We live in a country with increasing barriers to care – now with laws in many states that prevent basic health care for women. Internal medicine doctors increasingly may see patients who need care urgently, particularly those who practice in states that neighbor those that prevent this access. We are calling for all who practice internal medicine to educate themselves, optimizing their skills within the full scope of medical practice to provide possibly lifesaving care and thereby address increased needs for medical services.

We must continue to advocate for our patients. The COVID-19 pandemic has reinforced the fact that internal medicine–trained physicians are able to care for conditions that are new and, as a profession, we are capable of rapidly switching practices and learning new modalities of care. It is time for us to extend this competency to care for patients who constitute half the population and are at risk: women.

Dr. Barrett is an internal medicine hospitalist based in Albuquerque, New Mexico; she completed a medical justice in advocacy fellowship in 2022. Dr. Radhakrishnan is an internal medicine physician educator who completed an equity matters fellowship in 2022 and is based in Scottsdale, Arizona. Neither reports conflicts of interest.

References

1. Harrison’s Principles of Internal Medicine, 20e. Jameson J et al., eds. McGraw Hill; 2018. Accessed Sept. 27, 2023.

2. Serchen J et al. Reproductive Health Policy in the United States: An American College of Physicians Policy Brief. Ann Intern Med.2023;176:364-6. epub 28 Feb. 2023.

3. Jatlaoui TC et al. Abortion Surveillance — United States, 2016. MMWR Surveill Summ 2019;68(No. SS-11):1-41.

4. Raymond EG and Grimes DA. The comparative safety of legal induced abortion and childbirth in the United States. Obstet Gynecol. 2012;119(2 Pt 1):215-9.

5. Ralph LJ et al. Self-reported Physical Health of Women Who Did and Did Not Terminate Pregnancy After Seeking Abortion Services: A Cohort Study. Ann Intern Med.2019;171:238-47. epub 11 June 2019.

6. Gerdts C et al. Side effects, physical health consequences, and mortality associated with abortion and birth after an unwanted pregnancy. Women’s Health Issues 2016;26:55-59.

7. Nobel K et al. Patient-reported experience with discussion of all options during pregnancy options counseling in the US south. Contraception. 2022;106:68-74.

8. Liu N and Ray JG. Short-Term Adverse Outcomes After Mifepristone–Misoprostol Versus Procedural Induced Abortion: A Population-Based Propensity-Weighted Study. Ann Intern Med.2023;176:145-53. epub 3 January 2023.

“No greater opportunity, responsibility, or obligation can fall to the lot of a human being than to become a physician. In the care of the suffering, [the physician] needs technical skill, scientific knowledge, and human understanding.”¹ Internal medicine physicians have risen to this challenge for centuries. Today, it is time for us to use these skills to care for patients who need access to reproductive care — particularly medication abortion. Nationally accredited internal medicine training programs have not been required to provide abortion education, and this may evolve in the future.

However, considering the difficulty in people receiving contraception, the failure rate of contraception, the known risks from pregnancy, the increasing difficulty in accessing abortion, and the recent advocating to protect access to reproductive care by leadership of internal medicine and internal medicine subspecialty societies, we advocate that abortion must become a part of our education and practice.²

Most abortions are performed during the first trimester and can be managed with medications that are very safe.³ In fact, legal medication abortion is so safe that pregnancy in the United States has fourteen times the mortality risk as does legal medication abortion.⁴ Inability to access an abortion has widely documented negative health effects for women and their children.^5,6

Within this context, it is important for internal medicine physicians to understand that the ability to access an abortion is the ability to access a life-saving procedure and there is no medical justification for restricting such a prescription any more than restricting any other standard medical therapy. Furthermore, the recent widespread criminalization of abortion gives new urgency to expanding the pool of physicians who understand this and are trained, able, and willing to prescribe medication abortion.

We understand that reproductive health care may not now be a component of clinical practice for some, but given the heterogeneity of internal medicine, we believe that some knowledge about medical abortion is an essential competency of foundational medical knowledge.⁷ The heterogeneity of practice in internal medicine lends itself to different levels of knowledge that should be embraced. Because of poor access to abortion, both ambulatory and hospital-based physicians will increasingly be required to care for patients who need abortion for medical or other reasons.

We advocate that all physicians — including those with internal medicine training — should understand counseling about choices and options (including an unbiased discussion of the options to continue or terminate the pregnancy), the safety of medication abortion in contrast to the risks from pregnancy, and where to refer someone seeking an abortion. In addition to this information, primary care physicians with a special interest in women’s health must have basic knowledge about mifepristone and misoprostol and how they work, the benefits and risks of these, and what the pregnant person seeking an abortion will experience.⁸

Lastly, physicians who wish to provide medication abortion — including in primary care, hospital medicine, and subspecialty care — should receive training and ongoing professional development. Such professional development should include counseling, indications, contraindications, medication regimens, navigating required documentation and reporting, and anticipating possible side effects and complications.

A major challenge to internal medicine and other primary care physicians, subspecialists, and hospitalists addressing abortion is the inadequate training in and knowledge about providing this care. However, the entire spectrum of medical education (undergraduate, graduate, and continuing education) should evolve to address this lack.

Integrating this education into medical conferences and journals is a meaningful start, possibly in partnership with medical societies that have been teaching these skills for decades. Partnering with other specialties can also help us stay current on the local legal landscape and engage in collaborative advocacy.

Specifically, some resources for training can be found at:

• www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2014/11/abortion-training-and-education
• https://prochoice.org/providers/continuing-medical-education/
• www.reproductiveaccess.org/medicationabortion/

Some may have concerns that managing the possible complications of medication abortion is a reason for internal medicine to not be involved in abortion care. However, medication abortions are safe and effective for pregnancy termination and internal medicine physicians can refer patients with complications to peers in gynecology, family medicine, and emergency medicine should complications arise.^{8 We have} managed countless other conditions this way, including most recently during the pandemic.

We live in a country with increasing barriers to care – now with laws in many states that prevent basic health care for women. Internal medicine doctors increasingly may see patients who need care urgently, particularly those who practice in states that neighbor those that prevent this access. We are calling for all who practice internal medicine to educate themselves, optimizing their skills within the full scope of medical practice to provide possibly lifesaving care and thereby address increased needs for medical services.

We must continue to advocate for our patients. The COVID-19 pandemic has reinforced the fact that internal medicine–trained physicians are able to care for conditions that are new and, as a profession, we are capable of rapidly switching practices and learning new modalities of care. It is time for us to extend this competency to care for patients who constitute half the population and are at risk: women.

Dr. Barrett is an internal medicine hospitalist based in Albuquerque, New Mexico; she completed a medical justice in advocacy fellowship in 2022. Dr. Radhakrishnan is an internal medicine physician educator who completed an equity matters fellowship in 2022 and is based in Scottsdale, Arizona. Neither reports conflicts of interest.

References

1. Harrison’s Principles of Internal Medicine, 20e. Jameson J et al., eds. McGraw Hill; 2018. Accessed Sept. 27, 2023.

2. Serchen J et al. Reproductive Health Policy in the United States: An American College of Physicians Policy Brief. Ann Intern Med.2023;176:364-6. epub 28 Feb. 2023.

3. Jatlaoui TC et al. Abortion Surveillance — United States, 2016. MMWR Surveill Summ 2019;68(No. SS-11):1-41.

4. Raymond EG and Grimes DA. The comparative safety of legal induced abortion and childbirth in the United States. Obstet Gynecol. 2012;119(2 Pt 1):215-9.

5. Ralph LJ et al. Self-reported Physical Health of Women Who Did and Did Not Terminate Pregnancy After Seeking Abortion Services: A Cohort Study. Ann Intern Med.2019;171:238-47. epub 11 June 2019.

6. Gerdts C et al. Side effects, physical health consequences, and mortality associated with abortion and birth after an unwanted pregnancy. Women’s Health Issues 2016;26:55-59.

7. Nobel K et al. Patient-reported experience with discussion of all options during pregnancy options counseling in the US south. Contraception. 2022;106:68-74.

8. Liu N and Ray JG. Short-Term Adverse Outcomes After Mifepristone–Misoprostol Versus Procedural Induced Abortion: A Population-Based Propensity-Weighted Study. Ann Intern Med.2023;176:145-53. epub 3 January 2023.

“No greater opportunity, responsibility, or obligation can fall to the lot of a human being than to become a physician. In the care of the suffering, [the physician] needs technical skill, scientific knowledge, and human understanding.”¹ Internal medicine physicians have risen to this challenge for centuries. Today, it is time for us to use these skills to care for patients who need access to reproductive care — particularly medication abortion. Nationally accredited internal medicine training programs have not been required to provide abortion education, and this may evolve in the future.

However, considering the difficulty in people receiving contraception, the failure rate of contraception, the known risks from pregnancy, the increasing difficulty in accessing abortion, and the recent advocating to protect access to reproductive care by leadership of internal medicine and internal medicine subspecialty societies, we advocate that abortion must become a part of our education and practice.²

Most abortions are performed during the first trimester and can be managed with medications that are very safe.³ In fact, legal medication abortion is so safe that pregnancy in the United States has fourteen times the mortality risk as does legal medication abortion.⁴ Inability to access an abortion has widely documented negative health effects for women and their children.^5,6

Within this context, it is important for internal medicine physicians to understand that the ability to access an abortion is the ability to access a life-saving procedure and there is no medical justification for restricting such a prescription any more than restricting any other standard medical therapy. Furthermore, the recent widespread criminalization of abortion gives new urgency to expanding the pool of physicians who understand this and are trained, able, and willing to prescribe medication abortion.

We understand that reproductive health care may not now be a component of clinical practice for some, but given the heterogeneity of internal medicine, we believe that some knowledge about medical abortion is an essential competency of foundational medical knowledge.⁷ The heterogeneity of practice in internal medicine lends itself to different levels of knowledge that should be embraced. Because of poor access to abortion, both ambulatory and hospital-based physicians will increasingly be required to care for patients who need abortion for medical or other reasons.

We advocate that all physicians — including those with internal medicine training — should understand counseling about choices and options (including an unbiased discussion of the options to continue or terminate the pregnancy), the safety of medication abortion in contrast to the risks from pregnancy, and where to refer someone seeking an abortion. In addition to this information, primary care physicians with a special interest in women’s health must have basic knowledge about mifepristone and misoprostol and how they work, the benefits and risks of these, and what the pregnant person seeking an abortion will experience.⁸

Lastly, physicians who wish to provide medication abortion — including in primary care, hospital medicine, and subspecialty care — should receive training and ongoing professional development. Such professional development should include counseling, indications, contraindications, medication regimens, navigating required documentation and reporting, and anticipating possible side effects and complications.

A major challenge to internal medicine and other primary care physicians, subspecialists, and hospitalists addressing abortion is the inadequate training in and knowledge about providing this care. However, the entire spectrum of medical education (undergraduate, graduate, and continuing education) should evolve to address this lack.

Integrating this education into medical conferences and journals is a meaningful start, possibly in partnership with medical societies that have been teaching these skills for decades. Partnering with other specialties can also help us stay current on the local legal landscape and engage in collaborative advocacy.

Specifically, some resources for training can be found at:

• www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2014/11/abortion-training-and-education
• https://prochoice.org/providers/continuing-medical-education/
• www.reproductiveaccess.org/medicationabortion/

Some may have concerns that managing the possible complications of medication abortion is a reason for internal medicine to not be involved in abortion care. However, medication abortions are safe and effective for pregnancy termination and internal medicine physicians can refer patients with complications to peers in gynecology, family medicine, and emergency medicine should complications arise.^{8 We have} managed countless other conditions this way, including most recently during the pandemic.

We live in a country with increasing barriers to care – now with laws in many states that prevent basic health care for women. Internal medicine doctors increasingly may see patients who need care urgently, particularly those who practice in states that neighbor those that prevent this access. We are calling for all who practice internal medicine to educate themselves, optimizing their skills within the full scope of medical practice to provide possibly lifesaving care and thereby address increased needs for medical services.

We must continue to advocate for our patients. The COVID-19 pandemic has reinforced the fact that internal medicine–trained physicians are able to care for conditions that are new and, as a profession, we are capable of rapidly switching practices and learning new modalities of care. It is time for us to extend this competency to care for patients who constitute half the population and are at risk: women.

Dr. Barrett is an internal medicine hospitalist based in Albuquerque, New Mexico; she completed a medical justice in advocacy fellowship in 2022. Dr. Radhakrishnan is an internal medicine physician educator who completed an equity matters fellowship in 2022 and is based in Scottsdale, Arizona. Neither reports conflicts of interest.

References

1. Harrison’s Principles of Internal Medicine, 20e. Jameson J et al., eds. McGraw Hill; 2018. Accessed Sept. 27, 2023.

2. Serchen J et al. Reproductive Health Policy in the United States: An American College of Physicians Policy Brief. Ann Intern Med.2023;176:364-6. epub 28 Feb. 2023.

3. Jatlaoui TC et al. Abortion Surveillance — United States, 2016. MMWR Surveill Summ 2019;68(No. SS-11):1-41.

4. Raymond EG and Grimes DA. The comparative safety of legal induced abortion and childbirth in the United States. Obstet Gynecol. 2012;119(2 Pt 1):215-9.

5. Ralph LJ et al. Self-reported Physical Health of Women Who Did and Did Not Terminate Pregnancy After Seeking Abortion Services: A Cohort Study. Ann Intern Med.2019;171:238-47. epub 11 June 2019.

6. Gerdts C et al. Side effects, physical health consequences, and mortality associated with abortion and birth after an unwanted pregnancy. Women’s Health Issues 2016;26:55-59.

7. Nobel K et al. Patient-reported experience with discussion of all options during pregnancy options counseling in the US south. Contraception. 2022;106:68-74.

8. Liu N and Ray JG. Short-Term Adverse Outcomes After Mifepristone–Misoprostol Versus Procedural Induced Abortion: A Population-Based Propensity-Weighted Study. Ann Intern Med.2023;176:145-53. epub 3 January 2023.

Unwanted weight gain is a common problem for women after menopause. Primary care clinicians have likely heard from patients that attempts at shedding extra pounds are not working.

Nearly three fourths of women aged 60 years and older in the United States are overweight. Some may blame menopause for this trend. But the life stage itself does not cause weight gain. Aging does: Women gain about 1.5 pounds per year on average starting almost a decade prior to menopause to a decade after their final menstrual cycle, according to research.

“A lot of women are in tears because they have gained 10 or 15 pounds,” said Stephanie Faubion, MD, medical director of The Menopause Society and director of the Mayo Clinic Center for Women’s Health in Jacksonville, Florida.

A shortage of obesity and menopause specialists means primary care clinicians must understand the intersection of weight management and how the body functions after menopause.

“The importance of weight management in midlife cannot be overemphasized,” Dr. Faubion said. “Excess weight around the middle increases the risk of diabetes and heart disease and that is directly related to the loss of estrogen.”

The loss of estrogen due to menopause also causes the redistribution of fat from the thighs, hips, and buttocks to the midsection, which can be more difficult to trim. And women naturally lose muscle mass as they age, in part because the hormone is important to muscle functioning, according to Maria Daniela Hurtado Andrade, MD, PhD, assistant professor of medicine at Mayo Clinic Alix School of Medicine in Jacksonville, Florida.

“Menopause compounds the changes associated with aging: It makes them worse,” Dr. Hurtado Andrade said.

Mounting evidence has linked obesity-related systemic inflammation with an increased risk for cardiovascular disease, including heart attacks and vascular damage.

Michael Knight, MD, clinical associate professor of medicine and a weight loss specialist at the George Washington University in Washington, DC, estimated that more than half of his patients are postmenopausal women.

He recommended clinicians look for adipose tissue dysfunction, which can cause localized insulin resistance and affect metabolic health. Research suggests clinicians can perform a basic metabolic panel, in addition to testing for triglyceride, low-density lipoprotein, and renal function levels. Several other recent studies have pointed to using waist circumference, insulin resistance, or presence of metabolic syndrome to diagnose adipose tissue dysfunction.

Beyond Diet and Exercise

Physicians should ask their patients about physical activity, the type of foods they are eating, and changes in day-to-day movement, Dr. Knight advised.

Pharmacotherapy or surgical options should be considered for some patients, according to Karen Adams, MD, clinical professor of obstetrics and gynecology and a lifestyle medicine specialist at Stanford Medicine in Palo Alto, California. Postmenopausal women who want to lose more than 5%-10% of their body weight likely will need another modality in addition to diet and exercise.

“What’s important is transitioning the patient from feeling like they’ve failed to a mindset of seeking help or seeking care for this condition,” she said. Dr. Adams, a certified menopause specialist, uses the idea of “good enough” with her patients and suggests they think of weight loss as a journey, which may require different tools at various points.

Glucagon-like peptide 1 receptor agonists like semaglutide or tirzepatide are some of the most effective drugs for obesity, according to Dr. Knight.

In addition to these drugs, hormone replacement therapy in combination with the weight loss drug semaglutide may improve weight loss and reduce cardiometabolic risk in postmenopausal women compared with semaglutide alone, as reported in a study Dr. Hurtado Andrade and Dr. Faubion recently coauthored. Improving vasomotor symptoms improved sleep, physical activity, and quality of life, which all can affect efforts to lose weight.

Most patients who struggle to lose weight using diet and exercise methods alone usually do not maintain a healthy weight long term, according to Knight. Physicians need a comprehensive strategy to introduce options like medications or surgery when indicated for long-term, weight management solutions.

Tips for primary care clinicians in helping postmenopausal women lose weight:

• Develop an effective solution that works for your patient’s lifestyle. If you don’t have one, make a referral to a weight loss specialist.
• Educate patients about obesity and postmenopausal weight loss challenges, to help destigmatize the condition. Explain that obesity is a chronic disease, like hypertension or diabetes.
• Exercise suggestions should consider issues like walkable neighborhoods, access and affordability of gym membership, and home broadband access.
• Strength training should be recommended to counter loss of muscle mass that comes with aging.
• Consider a patient’s culture when discussing healthier alternatives to their usual diet.
• Suggest simple changes to start, like eliminating simple carbohydrates — white bread, pasta, and white rice — as a good place to start.

Body mass index was not designed to be a clinical tool and does not fully assess weight in many populations. Risk for chronic diseases and obesity varies depending on whether a person carries weight centrally or on the hips and thighs.

But well before menopause, clinicians can educate their female patients on what body changes to expect and be more mindful about which medications to not prescribe.

People in menopause or perimenopause are frequently prescribed weight-promoting drugs like antidepressants for mood swings or gabapentin for hot flashes. Clinicians should conduct a medication review and look for alternatives to drugs that are associated with weight gain.

The best approach is to try to avoid weight gain in the first place, which can be easier than trying to lose later, Dr. Faubion said. “You can’t just exercise your way out of it,” she said.

Dr. Adams, Dr. Faubion, and Dr. Hurtado Andrade reported no disclosures. Dr. Knight is a former consultant with Novo Nordisk.

A version of this article appeared on Medscape.com.

Unwanted weight gain is a common problem for women after menopause. Primary care clinicians have likely heard from patients that attempts at shedding extra pounds are not working.

Nearly three fourths of women aged 60 years and older in the United States are overweight. Some may blame menopause for this trend. But the life stage itself does not cause weight gain. Aging does: Women gain about 1.5 pounds per year on average starting almost a decade prior to menopause to a decade after their final menstrual cycle, according to research.

“A lot of women are in tears because they have gained 10 or 15 pounds,” said Stephanie Faubion, MD, medical director of The Menopause Society and director of the Mayo Clinic Center for Women’s Health in Jacksonville, Florida.

A shortage of obesity and menopause specialists means primary care clinicians must understand the intersection of weight management and how the body functions after menopause.

“The importance of weight management in midlife cannot be overemphasized,” Dr. Faubion said. “Excess weight around the middle increases the risk of diabetes and heart disease and that is directly related to the loss of estrogen.”

The loss of estrogen due to menopause also causes the redistribution of fat from the thighs, hips, and buttocks to the midsection, which can be more difficult to trim. And women naturally lose muscle mass as they age, in part because the hormone is important to muscle functioning, according to Maria Daniela Hurtado Andrade, MD, PhD, assistant professor of medicine at Mayo Clinic Alix School of Medicine in Jacksonville, Florida.

“Menopause compounds the changes associated with aging: It makes them worse,” Dr. Hurtado Andrade said.

Mounting evidence has linked obesity-related systemic inflammation with an increased risk for cardiovascular disease, including heart attacks and vascular damage.

Michael Knight, MD, clinical associate professor of medicine and a weight loss specialist at the George Washington University in Washington, DC, estimated that more than half of his patients are postmenopausal women.

He recommended clinicians look for adipose tissue dysfunction, which can cause localized insulin resistance and affect metabolic health. Research suggests clinicians can perform a basic metabolic panel, in addition to testing for triglyceride, low-density lipoprotein, and renal function levels. Several other recent studies have pointed to using waist circumference, insulin resistance, or presence of metabolic syndrome to diagnose adipose tissue dysfunction.

Beyond Diet and Exercise

Physicians should ask their patients about physical activity, the type of foods they are eating, and changes in day-to-day movement, Dr. Knight advised.

Pharmacotherapy or surgical options should be considered for some patients, according to Karen Adams, MD, clinical professor of obstetrics and gynecology and a lifestyle medicine specialist at Stanford Medicine in Palo Alto, California. Postmenopausal women who want to lose more than 5%-10% of their body weight likely will need another modality in addition to diet and exercise.

“What’s important is transitioning the patient from feeling like they’ve failed to a mindset of seeking help or seeking care for this condition,” she said. Dr. Adams, a certified menopause specialist, uses the idea of “good enough” with her patients and suggests they think of weight loss as a journey, which may require different tools at various points.

Glucagon-like peptide 1 receptor agonists like semaglutide or tirzepatide are some of the most effective drugs for obesity, according to Dr. Knight.

In addition to these drugs, hormone replacement therapy in combination with the weight loss drug semaglutide may improve weight loss and reduce cardiometabolic risk in postmenopausal women compared with semaglutide alone, as reported in a study Dr. Hurtado Andrade and Dr. Faubion recently coauthored. Improving vasomotor symptoms improved sleep, physical activity, and quality of life, which all can affect efforts to lose weight.

Most patients who struggle to lose weight using diet and exercise methods alone usually do not maintain a healthy weight long term, according to Knight. Physicians need a comprehensive strategy to introduce options like medications or surgery when indicated for long-term, weight management solutions.

Tips for primary care clinicians in helping postmenopausal women lose weight:

• Develop an effective solution that works for your patient’s lifestyle. If you don’t have one, make a referral to a weight loss specialist.
• Educate patients about obesity and postmenopausal weight loss challenges, to help destigmatize the condition. Explain that obesity is a chronic disease, like hypertension or diabetes.
• Exercise suggestions should consider issues like walkable neighborhoods, access and affordability of gym membership, and home broadband access.
• Strength training should be recommended to counter loss of muscle mass that comes with aging.
• Consider a patient’s culture when discussing healthier alternatives to their usual diet.
• Suggest simple changes to start, like eliminating simple carbohydrates — white bread, pasta, and white rice — as a good place to start.

Body mass index was not designed to be a clinical tool and does not fully assess weight in many populations. Risk for chronic diseases and obesity varies depending on whether a person carries weight centrally or on the hips and thighs.

But well before menopause, clinicians can educate their female patients on what body changes to expect and be more mindful about which medications to not prescribe.

People in menopause or perimenopause are frequently prescribed weight-promoting drugs like antidepressants for mood swings or gabapentin for hot flashes. Clinicians should conduct a medication review and look for alternatives to drugs that are associated with weight gain.

The best approach is to try to avoid weight gain in the first place, which can be easier than trying to lose later, Dr. Faubion said. “You can’t just exercise your way out of it,” she said.

Dr. Adams, Dr. Faubion, and Dr. Hurtado Andrade reported no disclosures. Dr. Knight is a former consultant with Novo Nordisk.

A version of this article appeared on Medscape.com.

Unwanted weight gain is a common problem for women after menopause. Primary care clinicians have likely heard from patients that attempts at shedding extra pounds are not working.

Nearly three fourths of women aged 60 years and older in the United States are overweight. Some may blame menopause for this trend. But the life stage itself does not cause weight gain. Aging does: Women gain about 1.5 pounds per year on average starting almost a decade prior to menopause to a decade after their final menstrual cycle, according to research.

“A lot of women are in tears because they have gained 10 or 15 pounds,” said Stephanie Faubion, MD, medical director of The Menopause Society and director of the Mayo Clinic Center for Women’s Health in Jacksonville, Florida.

A shortage of obesity and menopause specialists means primary care clinicians must understand the intersection of weight management and how the body functions after menopause.

“The importance of weight management in midlife cannot be overemphasized,” Dr. Faubion said. “Excess weight around the middle increases the risk of diabetes and heart disease and that is directly related to the loss of estrogen.”

The loss of estrogen due to menopause also causes the redistribution of fat from the thighs, hips, and buttocks to the midsection, which can be more difficult to trim. And women naturally lose muscle mass as they age, in part because the hormone is important to muscle functioning, according to Maria Daniela Hurtado Andrade, MD, PhD, assistant professor of medicine at Mayo Clinic Alix School of Medicine in Jacksonville, Florida.

“Menopause compounds the changes associated with aging: It makes them worse,” Dr. Hurtado Andrade said.

Mounting evidence has linked obesity-related systemic inflammation with an increased risk for cardiovascular disease, including heart attacks and vascular damage.

Michael Knight, MD, clinical associate professor of medicine and a weight loss specialist at the George Washington University in Washington, DC, estimated that more than half of his patients are postmenopausal women.

He recommended clinicians look for adipose tissue dysfunction, which can cause localized insulin resistance and affect metabolic health. Research suggests clinicians can perform a basic metabolic panel, in addition to testing for triglyceride, low-density lipoprotein, and renal function levels. Several other recent studies have pointed to using waist circumference, insulin resistance, or presence of metabolic syndrome to diagnose adipose tissue dysfunction.

Beyond Diet and Exercise

Physicians should ask their patients about physical activity, the type of foods they are eating, and changes in day-to-day movement, Dr. Knight advised.

Pharmacotherapy or surgical options should be considered for some patients, according to Karen Adams, MD, clinical professor of obstetrics and gynecology and a lifestyle medicine specialist at Stanford Medicine in Palo Alto, California. Postmenopausal women who want to lose more than 5%-10% of their body weight likely will need another modality in addition to diet and exercise.

“What’s important is transitioning the patient from feeling like they’ve failed to a mindset of seeking help or seeking care for this condition,” she said. Dr. Adams, a certified menopause specialist, uses the idea of “good enough” with her patients and suggests they think of weight loss as a journey, which may require different tools at various points.

Glucagon-like peptide 1 receptor agonists like semaglutide or tirzepatide are some of the most effective drugs for obesity, according to Dr. Knight.

In addition to these drugs, hormone replacement therapy in combination with the weight loss drug semaglutide may improve weight loss and reduce cardiometabolic risk in postmenopausal women compared with semaglutide alone, as reported in a study Dr. Hurtado Andrade and Dr. Faubion recently coauthored. Improving vasomotor symptoms improved sleep, physical activity, and quality of life, which all can affect efforts to lose weight.

Most patients who struggle to lose weight using diet and exercise methods alone usually do not maintain a healthy weight long term, according to Knight. Physicians need a comprehensive strategy to introduce options like medications or surgery when indicated for long-term, weight management solutions.

Tips for primary care clinicians in helping postmenopausal women lose weight: