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A person’s ‘genetic’ height – the height they are predicted to reach independent of environmental influences – may be an underappreciated risk factor for a wide range of chronic conditions, according to a study published in PLOS Genetics.

Prior studies have investigated height as a risk factor for chronic diseases, such as a higher risk for atrial fibrillation and a reduced risk of cardiovascular disease. It’s been consistently difficult, however, to eliminate the confounding influences of diet, socioeconomics, lifestyle behaviors, and other environmental factors that may interfere with a person’s reaching their expected height based on their genes.

This study, however, was able to better parse those differences by using Mendelian randomization within the comprehensive clinical and genetic dataset of a national health care system biobank. Mendelian randomization uses “genetic instruments for exposures of interest under the assumption that genotype is less susceptible to confounding than measured exposures,” the authors explained. The findings confirmed previously suspected associations between height and a range of cardiovascular and metabolic conditions as well as revealing new associations with several other conditions.
 

Prior associations confirmed, new associations uncovered

The results confirmed that being tall is linked to a higher risk of atrial fibrillation and varicose veins, and a lower risk of coronary heart disease, high blood pressure, and high cholesterol. The study also uncovered new associations between greater height and a higher risk of peripheral neuropathy, which is caused by damage to nerves on the extremities, as well as skin and bone infections, such as leg and foot ulcers.

The meta-analysis “identified five additional traits associated with genetically-predicted height,” wrote Sridharan Raghavan, MD, assistant professor of medicine at the University of Colorado Anschutz Medical Campus, and colleagues. “Two were genitourinary conditions – erectile dysfunction and urinary retention – that can be associated with neuropathy, and a third was a phecode for nonspecific skin disorders that may be related to skin infections – consistent with the race/ethnicity stratified results.”
 

Removing potential confounders

F. Perry Wilson, MD, associate professor of medicine at Yale University, New Haven, Conn., who was not involved in the study, said the findings were not particularly surprising overall, but it’s striking that the researchers had ”such a large cohort with such detailed electronic health records allowing for the comparison of genetic height with a variety of clinical outcomes.” He also noted the study’s strength in using Mendelian randomization so that the exposure is the predicted genetic height instead of a person’s measured height.

“This is key, since lots of things affect actual height – nutrition is an important one that could certainly be linked to disease as well,” Dr. Wilson said. ”By using genetic height, the authors remove these potential confounders. Since genetic height is “assigned” at birth (or conception), there is little opportunity for confounding. Of course, it is possible that some of the gene variants used to predict genetic height actually do something else, such as make you seek out less nutritious meals, but by and large this is how these types of studies need to be done.”
 

Height may impact over 100 clinical traits

The study relied on data from the U.S. Veteran Affairs Million Veteran Program with 222,300 non-Hispanic White and 58,151 non-Hispanic Black participants. The researchers first estimated the likelihood of participants’ genetic height based on 3,290 genetic variants determined to affect genetic height in a recent European-ancestry genome-wide meta-analysis. Then they compared these estimates with participants’ actual height in the VA medical record, adjusting for age, sex, and other genetic characteristics.

In doing so, the researchers found 345 clinical traits that were associated with the actual measured height in White participants plus another 17 clinical trials linked to actual measured height in Black participants. An overall 127 of these clinical traits were significantly associated with White participants’ genetically predicted height, and two of them were significantly associated with Black participants’ genetically predicted height.

In analyzing all these data together, the researchers were largely able to separate out those associations between genetically predicted height and certain health conditions from those associations between health conditions and a person’s actual measured height. They also determined that including body mass index as a covariate had little impact on the results. The researchers conducted the appropriate statistical correction to ensure the use of so many variables did not result in spurious statistical significance in some associations.

“Using genetic methods applied to the VA Million Veteran Program, we found evidence that adult height may impact over 100 clinical traits, including several conditions associated with poor outcomes and quality of life – peripheral neuropathy, lower extremity ulcers, and chronic venous insufficiency. We conclude that height may be an unrecognized nonmodifiable risk factor for several common conditions in adults.”
 

Height linked with health conditions

Genetically predicted height predicted a reduced risk of hyperlipidemia and hypertension independent of coronary heart disease, the analysis revealed. Genetically predicted height was also linked to an approximately 51% increased risk of atrial fibrillation in participants without coronary heart disease but, paradoxically, only a 39% increased risk in those with coronary heart disease, despite coronary heart disease being a risk factor for atrial fibrillation. Genetically predicted height was also associated with a greater risk of varicose veins in the legs and deep vein thrombosis.

Another novel association uncovered by the analysis was between women’s genetically predicted height and both asthma and nonspecific peripheral nerve disorders. “Whether these associations reflect differences by sex in disease pathophysiology related to height may warrant exploration in a sample with better balance between men and women,” the authors wrote. “In sum, our results suggest that an individual’s height may warrant consideration as a nonmodifiable predictor for several common conditions, particularly those affecting peripheral/distal extremities that are most physically impacted by tall stature.”

A substantial limitation of the study was its homogeneity of participants, who were 92% male with an average height of 176 cm and an average BMI of 30.1. The Black participants tended to be younger, with an average age of 58 compared with 64 years in the White participants, but the groups were otherwise similar in height and weight.* The database included data from Hispanic participants, but the researchers excluded these data because of the small sample size.

The smaller dataset for Black participants was a limitation as well as the fact that the genome-wide association study the researchers relied on came from a European population, which may not be as accurate in people with other ancestry, Dr. Wilson said. The bigger limitation, however, is what the findings’ clinical relevance is.
 

What does it all mean?

“Genetic height is in your genes – there is nothing to be done about it – so it is more of academic interest than clinical interest,” Dr. Wilson said. It’s not even clear whether incorporating a person’s height – actual or genetically predicted, if it could be easily determined for each person – into risk calculators. ”To know whether it would be beneficial to use height (or genetic height) as a risk factor, you’d need to examine each condition of interest, adjusting for all known risk factors, to see if height improved the prediction,” Dr. Wilson said. “I suspect for most conditions, the well-known risk factors would swamp height. For example, high genetic height might truly increase risk for neuropathy. But diabetes might increase the risk so much more that height is not particularly relevant.”

On the other hand, the fact that height in general has any potential influence at all on disease risk may inspire physicians to consider other risk factors in especially tall individuals.

”Physicians may find it interesting that we have some confirmation that height does increase the risk of certain conditions,” Dr. Wilson said. “While this is unlikely to dramatically change practice, they may be a bit more diligent in looking for other relevant risk factors for the diseases found in this study in their very tall patients.”

The research was funded by the U.S. Department of Veteran Affairs, the Boettcher Foundation’s Webb-Waring Biomedical Research Program, the National Institutes of Health, and a Linda Pechenik Montague Investigator award. One study coauthor is a full-time employee of Novartis Institutes of Biomedical Research. The other authors and Dr. Wilson had no disclosures.

*Correction, 6/29/22: An earlier version of this article misstated the average age of Black participants.

A person’s ‘genetic’ height – the height they are predicted to reach independent of environmental influences – may be an underappreciated risk factor for a wide range of chronic conditions, according to a study published in PLOS Genetics.

Prior studies have investigated height as a risk factor for chronic diseases, such as a higher risk for atrial fibrillation and a reduced risk of cardiovascular disease. It’s been consistently difficult, however, to eliminate the confounding influences of diet, socioeconomics, lifestyle behaviors, and other environmental factors that may interfere with a person’s reaching their expected height based on their genes.

This study, however, was able to better parse those differences by using Mendelian randomization within the comprehensive clinical and genetic dataset of a national health care system biobank. Mendelian randomization uses “genetic instruments for exposures of interest under the assumption that genotype is less susceptible to confounding than measured exposures,” the authors explained. The findings confirmed previously suspected associations between height and a range of cardiovascular and metabolic conditions as well as revealing new associations with several other conditions.
 

Prior associations confirmed, new associations uncovered

The results confirmed that being tall is linked to a higher risk of atrial fibrillation and varicose veins, and a lower risk of coronary heart disease, high blood pressure, and high cholesterol. The study also uncovered new associations between greater height and a higher risk of peripheral neuropathy, which is caused by damage to nerves on the extremities, as well as skin and bone infections, such as leg and foot ulcers.

The meta-analysis “identified five additional traits associated with genetically-predicted height,” wrote Sridharan Raghavan, MD, assistant professor of medicine at the University of Colorado Anschutz Medical Campus, and colleagues. “Two were genitourinary conditions – erectile dysfunction and urinary retention – that can be associated with neuropathy, and a third was a phecode for nonspecific skin disorders that may be related to skin infections – consistent with the race/ethnicity stratified results.”
 

Removing potential confounders

F. Perry Wilson, MD, associate professor of medicine at Yale University, New Haven, Conn., who was not involved in the study, said the findings were not particularly surprising overall, but it’s striking that the researchers had ”such a large cohort with such detailed electronic health records allowing for the comparison of genetic height with a variety of clinical outcomes.” He also noted the study’s strength in using Mendelian randomization so that the exposure is the predicted genetic height instead of a person’s measured height.

“This is key, since lots of things affect actual height – nutrition is an important one that could certainly be linked to disease as well,” Dr. Wilson said. ”By using genetic height, the authors remove these potential confounders. Since genetic height is “assigned” at birth (or conception), there is little opportunity for confounding. Of course, it is possible that some of the gene variants used to predict genetic height actually do something else, such as make you seek out less nutritious meals, but by and large this is how these types of studies need to be done.”
 

Height may impact over 100 clinical traits

The study relied on data from the U.S. Veteran Affairs Million Veteran Program with 222,300 non-Hispanic White and 58,151 non-Hispanic Black participants. The researchers first estimated the likelihood of participants’ genetic height based on 3,290 genetic variants determined to affect genetic height in a recent European-ancestry genome-wide meta-analysis. Then they compared these estimates with participants’ actual height in the VA medical record, adjusting for age, sex, and other genetic characteristics.

In doing so, the researchers found 345 clinical traits that were associated with the actual measured height in White participants plus another 17 clinical trials linked to actual measured height in Black participants. An overall 127 of these clinical traits were significantly associated with White participants’ genetically predicted height, and two of them were significantly associated with Black participants’ genetically predicted height.

In analyzing all these data together, the researchers were largely able to separate out those associations between genetically predicted height and certain health conditions from those associations between health conditions and a person’s actual measured height. They also determined that including body mass index as a covariate had little impact on the results. The researchers conducted the appropriate statistical correction to ensure the use of so many variables did not result in spurious statistical significance in some associations.

“Using genetic methods applied to the VA Million Veteran Program, we found evidence that adult height may impact over 100 clinical traits, including several conditions associated with poor outcomes and quality of life – peripheral neuropathy, lower extremity ulcers, and chronic venous insufficiency. We conclude that height may be an unrecognized nonmodifiable risk factor for several common conditions in adults.”
 

Height linked with health conditions

Genetically predicted height predicted a reduced risk of hyperlipidemia and hypertension independent of coronary heart disease, the analysis revealed. Genetically predicted height was also linked to an approximately 51% increased risk of atrial fibrillation in participants without coronary heart disease but, paradoxically, only a 39% increased risk in those with coronary heart disease, despite coronary heart disease being a risk factor for atrial fibrillation. Genetically predicted height was also associated with a greater risk of varicose veins in the legs and deep vein thrombosis.

Another novel association uncovered by the analysis was between women’s genetically predicted height and both asthma and nonspecific peripheral nerve disorders. “Whether these associations reflect differences by sex in disease pathophysiology related to height may warrant exploration in a sample with better balance between men and women,” the authors wrote. “In sum, our results suggest that an individual’s height may warrant consideration as a nonmodifiable predictor for several common conditions, particularly those affecting peripheral/distal extremities that are most physically impacted by tall stature.”

A substantial limitation of the study was its homogeneity of participants, who were 92% male with an average height of 176 cm and an average BMI of 30.1. The Black participants tended to be younger, with an average age of 58 compared with 64 years in the White participants, but the groups were otherwise similar in height and weight.* The database included data from Hispanic participants, but the researchers excluded these data because of the small sample size.

The smaller dataset for Black participants was a limitation as well as the fact that the genome-wide association study the researchers relied on came from a European population, which may not be as accurate in people with other ancestry, Dr. Wilson said. The bigger limitation, however, is what the findings’ clinical relevance is.
 

What does it all mean?

“Genetic height is in your genes – there is nothing to be done about it – so it is more of academic interest than clinical interest,” Dr. Wilson said. It’s not even clear whether incorporating a person’s height – actual or genetically predicted, if it could be easily determined for each person – into risk calculators. ”To know whether it would be beneficial to use height (or genetic height) as a risk factor, you’d need to examine each condition of interest, adjusting for all known risk factors, to see if height improved the prediction,” Dr. Wilson said. “I suspect for most conditions, the well-known risk factors would swamp height. For example, high genetic height might truly increase risk for neuropathy. But diabetes might increase the risk so much more that height is not particularly relevant.”

On the other hand, the fact that height in general has any potential influence at all on disease risk may inspire physicians to consider other risk factors in especially tall individuals.

”Physicians may find it interesting that we have some confirmation that height does increase the risk of certain conditions,” Dr. Wilson said. “While this is unlikely to dramatically change practice, they may be a bit more diligent in looking for other relevant risk factors for the diseases found in this study in their very tall patients.”

The research was funded by the U.S. Department of Veteran Affairs, the Boettcher Foundation’s Webb-Waring Biomedical Research Program, the National Institutes of Health, and a Linda Pechenik Montague Investigator award. One study coauthor is a full-time employee of Novartis Institutes of Biomedical Research. The other authors and Dr. Wilson had no disclosures.

*Correction, 6/29/22: An earlier version of this article misstated the average age of Black participants.

A person’s ‘genetic’ height – the height they are predicted to reach independent of environmental influences – may be an underappreciated risk factor for a wide range of chronic conditions, according to a study published in PLOS Genetics.

Prior studies have investigated height as a risk factor for chronic diseases, such as a higher risk for atrial fibrillation and a reduced risk of cardiovascular disease. It’s been consistently difficult, however, to eliminate the confounding influences of diet, socioeconomics, lifestyle behaviors, and other environmental factors that may interfere with a person’s reaching their expected height based on their genes.

This study, however, was able to better parse those differences by using Mendelian randomization within the comprehensive clinical and genetic dataset of a national health care system biobank. Mendelian randomization uses “genetic instruments for exposures of interest under the assumption that genotype is less susceptible to confounding than measured exposures,” the authors explained. The findings confirmed previously suspected associations between height and a range of cardiovascular and metabolic conditions as well as revealing new associations with several other conditions.
 

Prior associations confirmed, new associations uncovered

The results confirmed that being tall is linked to a higher risk of atrial fibrillation and varicose veins, and a lower risk of coronary heart disease, high blood pressure, and high cholesterol. The study also uncovered new associations between greater height and a higher risk of peripheral neuropathy, which is caused by damage to nerves on the extremities, as well as skin and bone infections, such as leg and foot ulcers.

The meta-analysis “identified five additional traits associated with genetically-predicted height,” wrote Sridharan Raghavan, MD, assistant professor of medicine at the University of Colorado Anschutz Medical Campus, and colleagues. “Two were genitourinary conditions – erectile dysfunction and urinary retention – that can be associated with neuropathy, and a third was a phecode for nonspecific skin disorders that may be related to skin infections – consistent with the race/ethnicity stratified results.”
 

Removing potential confounders

F. Perry Wilson, MD, associate professor of medicine at Yale University, New Haven, Conn., who was not involved in the study, said the findings were not particularly surprising overall, but it’s striking that the researchers had ”such a large cohort with such detailed electronic health records allowing for the comparison of genetic height with a variety of clinical outcomes.” He also noted the study’s strength in using Mendelian randomization so that the exposure is the predicted genetic height instead of a person’s measured height.

“This is key, since lots of things affect actual height – nutrition is an important one that could certainly be linked to disease as well,” Dr. Wilson said. ”By using genetic height, the authors remove these potential confounders. Since genetic height is “assigned” at birth (or conception), there is little opportunity for confounding. Of course, it is possible that some of the gene variants used to predict genetic height actually do something else, such as make you seek out less nutritious meals, but by and large this is how these types of studies need to be done.”
 

Height may impact over 100 clinical traits

The study relied on data from the U.S. Veteran Affairs Million Veteran Program with 222,300 non-Hispanic White and 58,151 non-Hispanic Black participants. The researchers first estimated the likelihood of participants’ genetic height based on 3,290 genetic variants determined to affect genetic height in a recent European-ancestry genome-wide meta-analysis. Then they compared these estimates with participants’ actual height in the VA medical record, adjusting for age, sex, and other genetic characteristics.

In doing so, the researchers found 345 clinical traits that were associated with the actual measured height in White participants plus another 17 clinical trials linked to actual measured height in Black participants. An overall 127 of these clinical traits were significantly associated with White participants’ genetically predicted height, and two of them were significantly associated with Black participants’ genetically predicted height.

In analyzing all these data together, the researchers were largely able to separate out those associations between genetically predicted height and certain health conditions from those associations between health conditions and a person’s actual measured height. They also determined that including body mass index as a covariate had little impact on the results. The researchers conducted the appropriate statistical correction to ensure the use of so many variables did not result in spurious statistical significance in some associations.

“Using genetic methods applied to the VA Million Veteran Program, we found evidence that adult height may impact over 100 clinical traits, including several conditions associated with poor outcomes and quality of life – peripheral neuropathy, lower extremity ulcers, and chronic venous insufficiency. We conclude that height may be an unrecognized nonmodifiable risk factor for several common conditions in adults.”
 

Height linked with health conditions

Genetically predicted height predicted a reduced risk of hyperlipidemia and hypertension independent of coronary heart disease, the analysis revealed. Genetically predicted height was also linked to an approximately 51% increased risk of atrial fibrillation in participants without coronary heart disease but, paradoxically, only a 39% increased risk in those with coronary heart disease, despite coronary heart disease being a risk factor for atrial fibrillation. Genetically predicted height was also associated with a greater risk of varicose veins in the legs and deep vein thrombosis.

Another novel association uncovered by the analysis was between women’s genetically predicted height and both asthma and nonspecific peripheral nerve disorders. “Whether these associations reflect differences by sex in disease pathophysiology related to height may warrant exploration in a sample with better balance between men and women,” the authors wrote. “In sum, our results suggest that an individual’s height may warrant consideration as a nonmodifiable predictor for several common conditions, particularly those affecting peripheral/distal extremities that are most physically impacted by tall stature.”

A substantial limitation of the study was its homogeneity of participants, who were 92% male with an average height of 176 cm and an average BMI of 30.1. The Black participants tended to be younger, with an average age of 58 compared with 64 years in the White participants, but the groups were otherwise similar in height and weight.* The database included data from Hispanic participants, but the researchers excluded these data because of the small sample size.

The smaller dataset for Black participants was a limitation as well as the fact that the genome-wide association study the researchers relied on came from a European population, which may not be as accurate in people with other ancestry, Dr. Wilson said. The bigger limitation, however, is what the findings’ clinical relevance is.
 

What does it all mean?

“Genetic height is in your genes – there is nothing to be done about it – so it is more of academic interest than clinical interest,” Dr. Wilson said. It’s not even clear whether incorporating a person’s height – actual or genetically predicted, if it could be easily determined for each person – into risk calculators. ”To know whether it would be beneficial to use height (or genetic height) as a risk factor, you’d need to examine each condition of interest, adjusting for all known risk factors, to see if height improved the prediction,” Dr. Wilson said. “I suspect for most conditions, the well-known risk factors would swamp height. For example, high genetic height might truly increase risk for neuropathy. But diabetes might increase the risk so much more that height is not particularly relevant.”

On the other hand, the fact that height in general has any potential influence at all on disease risk may inspire physicians to consider other risk factors in especially tall individuals.

”Physicians may find it interesting that we have some confirmation that height does increase the risk of certain conditions,” Dr. Wilson said. “While this is unlikely to dramatically change practice, they may be a bit more diligent in looking for other relevant risk factors for the diseases found in this study in their very tall patients.”

The research was funded by the U.S. Department of Veteran Affairs, the Boettcher Foundation’s Webb-Waring Biomedical Research Program, the National Institutes of Health, and a Linda Pechenik Montague Investigator award. One study coauthor is a full-time employee of Novartis Institutes of Biomedical Research. The other authors and Dr. Wilson had no disclosures.

*Correction, 6/29/22: An earlier version of this article misstated the average age of Black participants.

A new imaging study hopes to make diagnosing endometriosis quicker, more accurate and reduce the need for invasive surgery.

In October 2020 the All Party Parliamentary Group on Endometriosis published a report that included within its recommendations “a commitment to drive down diagnosis times” for women with the condition. On average, it takes around 8 years for a woman to get a diagnosis of endometriosis, a figure, said the authors of the report, that had “not improved in the last decade.”

Indeed, in its report the APPG said that it was seeking a commitment from Governments in all four nations to reduce average diagnosis times with “targets of 4 years or less by 2025, and a year or less by 2030.”
 

Surgery often needed for endometriosis diagnosis

Endometriosis affects 1 in 10 women between puberty and menopause – 1.5 million in the United Kingdom – often results in multiple general practitioner and accident and emergency department visits, multiple scans, and often laparoscopic surgery to confirm the diagnosis, as there is currently no simple diagnostic test for the condition. One of the main reasons for the delay in diagnosis is the lack of noninvasive tests capable of detecting all endometriosis subtypes – ovarian, superficial, and deep disease.

Now, experts at the Endometriosis CaRe Centre and Nuffield Department of Women’s and Reproductive Health, University of Oxford (England), in collaboration with British life sciences company Serac Healthcare, hope to establish a faster process for diagnosing endometriosis.

Christian Becker, codirector of the Endometriosis CaRe Centre in Oxford, and a study lead, said: “There is an urgent unmet clinical need for a noninvasive marker to identify or rule out endometriosis as it is such a very common disease affecting more than 190 million women worldwide.”

In the study, researchers will investigate whether a 20-minute imaging scan can detect the most common types of endometriosis, which currently require surgery to diagnose. In turn, they hope that earlier diagnosis of the condition will allow women to seek appropriate treatment sooner. They will use an experimental imaging marker – ^99mTc-maraciclatide – that binds to areas of inflammation and that can be used in endometriosis to visualize the disease on a scan. The imaging marker has already been used for detecting inflammation in conditions such as rheumatoid arthritis.

Between 2 and 7 days before planned surgery for suspected endometriosis, participants will be invited for an imaging scan, and the team will compare the suspected locations of disease detected on the scan with those seen during surgery to confirm whether this imaging test could be an effective noninvasive method of detecting all endometriosis subtypes.
 

Doctor visits and repeated investigations reduced

The researchers commented that the potential strengths of the scan lie in the way the imaging marker binds to areas of inflammation, which may allow doctors to distinguish between new and old lesions and detect endometriosis in areas not easily seen during surgery, such as the lung.

They added that the development of a 20-minute imaging test would reduce the need for repeated visits to doctors, for repeated investigations, and for invasive surgery to obtain a diagnosis. This would ultimately “reduce the time taken to confirm or exclude endometriosis,” they pointed out.

Following the publication of the APPG report in October 2020 the group’s then chair, the late Sir David Amess, said: “Without investment in research, a reduction in diagnosis time, and appropriate NHS pathways, those with endometriosis will continue to face huge barriers in accessing the appropriate support at the right time.”

Krina Zondervan, head of department at the Nuffield Department of Women’s and Reproductive Health, University of Oxford, and a study lead, said: “This study highlights that close collaborations between academics, clinicians and industry are important to combine and accelerate discovery and innovation in addressing high-priority areas in women’s health such as endometriosis.”

David Hail, CEO of Serac Healthcare, said: “We are excited about the potential of ^99mTc-maraciclatide to diagnose endometriosis noninvasively and delighted to be working with the internationally renowned team at Oxford on this important first study.”

A version of this article first appeared on Medscape UK.

A new imaging study hopes to make diagnosing endometriosis quicker, more accurate and reduce the need for invasive surgery.

In October 2020 the All Party Parliamentary Group on Endometriosis published a report that included within its recommendations “a commitment to drive down diagnosis times” for women with the condition. On average, it takes around 8 years for a woman to get a diagnosis of endometriosis, a figure, said the authors of the report, that had “not improved in the last decade.”

Indeed, in its report the APPG said that it was seeking a commitment from Governments in all four nations to reduce average diagnosis times with “targets of 4 years or less by 2025, and a year or less by 2030.”
 

Surgery often needed for endometriosis diagnosis

Endometriosis affects 1 in 10 women between puberty and menopause – 1.5 million in the United Kingdom – often results in multiple general practitioner and accident and emergency department visits, multiple scans, and often laparoscopic surgery to confirm the diagnosis, as there is currently no simple diagnostic test for the condition. One of the main reasons for the delay in diagnosis is the lack of noninvasive tests capable of detecting all endometriosis subtypes – ovarian, superficial, and deep disease.

Now, experts at the Endometriosis CaRe Centre and Nuffield Department of Women’s and Reproductive Health, University of Oxford (England), in collaboration with British life sciences company Serac Healthcare, hope to establish a faster process for diagnosing endometriosis.

Christian Becker, codirector of the Endometriosis CaRe Centre in Oxford, and a study lead, said: “There is an urgent unmet clinical need for a noninvasive marker to identify or rule out endometriosis as it is such a very common disease affecting more than 190 million women worldwide.”

In the study, researchers will investigate whether a 20-minute imaging scan can detect the most common types of endometriosis, which currently require surgery to diagnose. In turn, they hope that earlier diagnosis of the condition will allow women to seek appropriate treatment sooner. They will use an experimental imaging marker – ^99mTc-maraciclatide – that binds to areas of inflammation and that can be used in endometriosis to visualize the disease on a scan. The imaging marker has already been used for detecting inflammation in conditions such as rheumatoid arthritis.

Between 2 and 7 days before planned surgery for suspected endometriosis, participants will be invited for an imaging scan, and the team will compare the suspected locations of disease detected on the scan with those seen during surgery to confirm whether this imaging test could be an effective noninvasive method of detecting all endometriosis subtypes.
 

Doctor visits and repeated investigations reduced

The researchers commented that the potential strengths of the scan lie in the way the imaging marker binds to areas of inflammation, which may allow doctors to distinguish between new and old lesions and detect endometriosis in areas not easily seen during surgery, such as the lung.

They added that the development of a 20-minute imaging test would reduce the need for repeated visits to doctors, for repeated investigations, and for invasive surgery to obtain a diagnosis. This would ultimately “reduce the time taken to confirm or exclude endometriosis,” they pointed out.

Following the publication of the APPG report in October 2020 the group’s then chair, the late Sir David Amess, said: “Without investment in research, a reduction in diagnosis time, and appropriate NHS pathways, those with endometriosis will continue to face huge barriers in accessing the appropriate support at the right time.”

Krina Zondervan, head of department at the Nuffield Department of Women’s and Reproductive Health, University of Oxford, and a study lead, said: “This study highlights that close collaborations between academics, clinicians and industry are important to combine and accelerate discovery and innovation in addressing high-priority areas in women’s health such as endometriosis.”

David Hail, CEO of Serac Healthcare, said: “We are excited about the potential of ^99mTc-maraciclatide to diagnose endometriosis noninvasively and delighted to be working with the internationally renowned team at Oxford on this important first study.”

A version of this article first appeared on Medscape UK.

A new imaging study hopes to make diagnosing endometriosis quicker, more accurate and reduce the need for invasive surgery.

In October 2020 the All Party Parliamentary Group on Endometriosis published a report that included within its recommendations “a commitment to drive down diagnosis times” for women with the condition. On average, it takes around 8 years for a woman to get a diagnosis of endometriosis, a figure, said the authors of the report, that had “not improved in the last decade.”

Indeed, in its report the APPG said that it was seeking a commitment from Governments in all four nations to reduce average diagnosis times with “targets of 4 years or less by 2025, and a year or less by 2030.”
 

Surgery often needed for endometriosis diagnosis

Endometriosis affects 1 in 10 women between puberty and menopause – 1.5 million in the United Kingdom – often results in multiple general practitioner and accident and emergency department visits, multiple scans, and often laparoscopic surgery to confirm the diagnosis, as there is currently no simple diagnostic test for the condition. One of the main reasons for the delay in diagnosis is the lack of noninvasive tests capable of detecting all endometriosis subtypes – ovarian, superficial, and deep disease.

Now, experts at the Endometriosis CaRe Centre and Nuffield Department of Women’s and Reproductive Health, University of Oxford (England), in collaboration with British life sciences company Serac Healthcare, hope to establish a faster process for diagnosing endometriosis.

Christian Becker, codirector of the Endometriosis CaRe Centre in Oxford, and a study lead, said: “There is an urgent unmet clinical need for a noninvasive marker to identify or rule out endometriosis as it is such a very common disease affecting more than 190 million women worldwide.”

In the study, researchers will investigate whether a 20-minute imaging scan can detect the most common types of endometriosis, which currently require surgery to diagnose. In turn, they hope that earlier diagnosis of the condition will allow women to seek appropriate treatment sooner. They will use an experimental imaging marker – ^99mTc-maraciclatide – that binds to areas of inflammation and that can be used in endometriosis to visualize the disease on a scan. The imaging marker has already been used for detecting inflammation in conditions such as rheumatoid arthritis.

Between 2 and 7 days before planned surgery for suspected endometriosis, participants will be invited for an imaging scan, and the team will compare the suspected locations of disease detected on the scan with those seen during surgery to confirm whether this imaging test could be an effective noninvasive method of detecting all endometriosis subtypes.
 

Doctor visits and repeated investigations reduced

The researchers commented that the potential strengths of the scan lie in the way the imaging marker binds to areas of inflammation, which may allow doctors to distinguish between new and old lesions and detect endometriosis in areas not easily seen during surgery, such as the lung.

They added that the development of a 20-minute imaging test would reduce the need for repeated visits to doctors, for repeated investigations, and for invasive surgery to obtain a diagnosis. This would ultimately “reduce the time taken to confirm or exclude endometriosis,” they pointed out.

Following the publication of the APPG report in October 2020 the group’s then chair, the late Sir David Amess, said: “Without investment in research, a reduction in diagnosis time, and appropriate NHS pathways, those with endometriosis will continue to face huge barriers in accessing the appropriate support at the right time.”

Krina Zondervan, head of department at the Nuffield Department of Women’s and Reproductive Health, University of Oxford, and a study lead, said: “This study highlights that close collaborations between academics, clinicians and industry are important to combine and accelerate discovery and innovation in addressing high-priority areas in women’s health such as endometriosis.”

David Hail, CEO of Serac Healthcare, said: “We are excited about the potential of ^99mTc-maraciclatide to diagnose endometriosis noninvasively and delighted to be working with the internationally renowned team at Oxford on this important first study.”

A version of this article first appeared on Medscape UK.

Cannabis-based products may control chronic pain as effectively as opioids, but adverse effects are common, and long-term safety remains unknown, according to a new study.

Several other systematic reviews have recently evaluated cannabinoids for treating chronic pain, but the new study’s methodology was “distinct” in “important ways,” leading to “conclusions that differ from other reviews,” according to the authors of the paper published in the Annals of Internal Medicine.

In the new systematic review, synthetic products with high THC:CBD ratios were associated with moderate improvements in pain, whereas plant-based products with comparable THC:CBD ratios offered less relief, said study author Marian S. McDonagh, PharmD, professor of medical informatics and clinical epidemiology, and codirector of the Evidence-based Practice Center at Oregon Health & Science University, Portland, and colleagues.

Specifically, the investigators stratified cannabis-based interventions according to relative content of two key cannabinoids: THC and CBD. Products were sorted into five categories: high THC:CBD ratio (at least 2:1), comparable THC:CBD ratio (less than 2:1 but more than 1:2), low THC:CBD ratio (no more than 1:2), whole-plant cannabis products, and other cannabinoids.

“In preclinical studies, THC and related compounds have demonstrated analgesic properties, although its psychoactive effects and addiction potential may limit its suitability as an analgesic,” the investigators wrote. “CBD and other cannabinoids may also have some analgesic or anti-inflammatory properties and are not believed to be psychoactive or addictive. Given the variation in analgesic effect with THC and CBD, response may differ according to the ratio of THC to CBD in products used to treat pain.”

The final analysis included 18 randomized placebo-controlled trials involving 1,740 individuals and 7 cohort studies involving 13,095 individuals. Most of the studies were short-term, lasting 1-6 months.

Pain was scored on a ten-point scale, with improvements reported as the mean difference from baseline to post treatment. A mean difference in pain score of 0.5-1.0 was considered a “small effect,” an improvement of 1-2 points was considered a “moderate effect,” and an improvement greater than 2 points was considered a “large effect.”
 

Cannabis-based products with relatively high THC:CBD ratios showed efficacy

Synthetic products with high THC:CBD ratios offered moderate pain relief, based on a mean difference in pain score of –1.15 (95% confidence interval, –1.99 to –0.54), whereas products with comparable THC:CBD ratios were associated with a small effect on pain, with a mean difference of –0.52 (95% CI, –0.95 to –0.19).

According to Dr. McDonagh, treatment response rates were on par with response rates for more conventional treatments, “such as opioids or specific antidepressant drugs,” but data for the cannabis-based products are weaker.

“The amount of evidence available for cannabis-related products is very limited for [response rates], and therefore less certain,” Dr. McDonagh said in an interview. “The average reduction in pain severity is also similar to some other treatments, but we do not have studies directly comparing these treatments to draw conclusions.”

Although the cannabis-based products with relatively high and comparable THC:CBD ratios showed efficacy, they were also associated with “moderate to large increased risk for dizziness, sedation, and nausea,” the investigators wrote, noting that evidence was insufficient to characterize other “key adverse event outcomes” that may occur with long-term use, such as “psychosis, cannabis use disorder, and cognitive deficits.”

For products with low THC:CBD ratios, or without reported THC:CBD ratios, data were too scarce to reach any conclusions at all about safety or efficacy, highlighting the sizable knowledge gaps that remain in the area, the authors said.

“The current evidence on cannabis-related products for chronic pain is quite limited,” Dr. McDonagh said in an interview. “Patients with chronic pain should consult with their doctor to discuss which of the many options for treating chronic pain is best for them to start with.”
 

Patients may face resistance when asking about cannabis

According to Kevin F. Boehnke, PhD, and Daniel J. Clauw, MD, of the anesthesiology department and Chronic Pain and Fatigue Research Center at the University of Michigan, Ann Arbor, patients with chronic pain may face resistance, or even risk of being reported, when asking about cannabis-based products.

“Some physicians cite lack of data as rationale for not engaging with patients who wish to use or currently use cannabis,” Dr. Boehnke and Dr. Clauw wrote in an accompanying editorial. “Such practices may reflect consideration of cannabis solely as a drug of misuse (even in the 37 states where medical cannabis is legal) and requirements to refer patients who disclose or test positive for cannabis use to addiction services or decline to refill opioid prescriptions.”

Instead of shutting patients out, Dr. Boehnke and Dr. Clauw suggested clinicians engage in an “open information exchange” with their patients that focuses on “pragmatism, patient experience, known cannabinoid effects, and harm reduction.” In these conversations, the editorialists recommend noting that, “as with other analgesics, some persons will benefit, and others will not.”

They also offered some practical guidance: “Clinicians could suggest using tinctures (effect onset, 15-45 minutes) for breakthrough pain and edibles or capsules (which last about 6-8 hours) for extended relief. ... The scientific literature suggests that CBD doses could start at 5-10 mg twice daily and increase to 40-50 mg daily, whereas THC doses could start at 0.5-3 mg (initially at night) and increase to 30-40 mg/day.”

David Copenhaver, MD, MPH, clinical professor and chief of the division of pain medicine at UC Davis Health, Sacramento, shared a similar clinical mindset for patients choosing between opioids and cannabis-based products, specifically, CBD.

Compared with opioids, “the side-effect profile for CBD is less and the risk of mortality is less,” Dr. Copenhaver said in an interview, pointing out that nobody, to his knowledge, has ever died from an overdose of cannabis alone, and that CBD doses up to 1,000 mg/kg have been safely tolerated in people. “You present that, and most patients will say, ‘You know, I’d like to give this a try.’”

If so, Dr. Copenhaver makes sure patients know about a nonmedical risk: “The risk to the pocketbook.” Unlike opioids, which are covered under most insurance policies, most cannabis-based therapies are self-pay.

Buyers may get what they pay for, Dr. Copenhaver said, since products vary in quality, as do the dispensaries, from “very modest,” to highly sophisticated, with some even using chromatographic datasets to support the purity of their products.

Dr. Copenhaver steers his patients toward these more sophisticated retailers. Their expertise appears to be paying off, he said, not only in relief for patients, but also in market share. “Survival of the most fit will occur in the marketplace based on the results,” he said. “Unfortunately, some of that information doesn’t get percolated out into the literature.”

For investigators to fully uncover what cannabis-based products can do for chronic pain, Dr. Copenhaver said they need to get as “granular” as the leading dispensaries, which may first require recognition of the “very expansive opportunity” that less-studied cannabinoids may provide.

The study was supported by the Agency for Healthcare Research and Quality, U.S. Department of Health & Human Services. The investigators, Dr. Boehnke, Dr. Clauw, and Dr. Copenhaver, disclosed no conflicts of interest.

Cannabis-based products may control chronic pain as effectively as opioids, but adverse effects are common, and long-term safety remains unknown, according to a new study.

Several other systematic reviews have recently evaluated cannabinoids for treating chronic pain, but the new study’s methodology was “distinct” in “important ways,” leading to “conclusions that differ from other reviews,” according to the authors of the paper published in the Annals of Internal Medicine.

In the new systematic review, synthetic products with high THC:CBD ratios were associated with moderate improvements in pain, whereas plant-based products with comparable THC:CBD ratios offered less relief, said study author Marian S. McDonagh, PharmD, professor of medical informatics and clinical epidemiology, and codirector of the Evidence-based Practice Center at Oregon Health & Science University, Portland, and colleagues.

Specifically, the investigators stratified cannabis-based interventions according to relative content of two key cannabinoids: THC and CBD. Products were sorted into five categories: high THC:CBD ratio (at least 2:1), comparable THC:CBD ratio (less than 2:1 but more than 1:2), low THC:CBD ratio (no more than 1:2), whole-plant cannabis products, and other cannabinoids.

“In preclinical studies, THC and related compounds have demonstrated analgesic properties, although its psychoactive effects and addiction potential may limit its suitability as an analgesic,” the investigators wrote. “CBD and other cannabinoids may also have some analgesic or anti-inflammatory properties and are not believed to be psychoactive or addictive. Given the variation in analgesic effect with THC and CBD, response may differ according to the ratio of THC to CBD in products used to treat pain.”

The final analysis included 18 randomized placebo-controlled trials involving 1,740 individuals and 7 cohort studies involving 13,095 individuals. Most of the studies were short-term, lasting 1-6 months.

Pain was scored on a ten-point scale, with improvements reported as the mean difference from baseline to post treatment. A mean difference in pain score of 0.5-1.0 was considered a “small effect,” an improvement of 1-2 points was considered a “moderate effect,” and an improvement greater than 2 points was considered a “large effect.”
 

Cannabis-based products with relatively high THC:CBD ratios showed efficacy

Synthetic products with high THC:CBD ratios offered moderate pain relief, based on a mean difference in pain score of –1.15 (95% confidence interval, –1.99 to –0.54), whereas products with comparable THC:CBD ratios were associated with a small effect on pain, with a mean difference of –0.52 (95% CI, –0.95 to –0.19).

According to Dr. McDonagh, treatment response rates were on par with response rates for more conventional treatments, “such as opioids or specific antidepressant drugs,” but data for the cannabis-based products are weaker.

“The amount of evidence available for cannabis-related products is very limited for [response rates], and therefore less certain,” Dr. McDonagh said in an interview. “The average reduction in pain severity is also similar to some other treatments, but we do not have studies directly comparing these treatments to draw conclusions.”

Although the cannabis-based products with relatively high and comparable THC:CBD ratios showed efficacy, they were also associated with “moderate to large increased risk for dizziness, sedation, and nausea,” the investigators wrote, noting that evidence was insufficient to characterize other “key adverse event outcomes” that may occur with long-term use, such as “psychosis, cannabis use disorder, and cognitive deficits.”

For products with low THC:CBD ratios, or without reported THC:CBD ratios, data were too scarce to reach any conclusions at all about safety or efficacy, highlighting the sizable knowledge gaps that remain in the area, the authors said.

“The current evidence on cannabis-related products for chronic pain is quite limited,” Dr. McDonagh said in an interview. “Patients with chronic pain should consult with their doctor to discuss which of the many options for treating chronic pain is best for them to start with.”
 

Patients may face resistance when asking about cannabis

According to Kevin F. Boehnke, PhD, and Daniel J. Clauw, MD, of the anesthesiology department and Chronic Pain and Fatigue Research Center at the University of Michigan, Ann Arbor, patients with chronic pain may face resistance, or even risk of being reported, when asking about cannabis-based products.

“Some physicians cite lack of data as rationale for not engaging with patients who wish to use or currently use cannabis,” Dr. Boehnke and Dr. Clauw wrote in an accompanying editorial. “Such practices may reflect consideration of cannabis solely as a drug of misuse (even in the 37 states where medical cannabis is legal) and requirements to refer patients who disclose or test positive for cannabis use to addiction services or decline to refill opioid prescriptions.”

Instead of shutting patients out, Dr. Boehnke and Dr. Clauw suggested clinicians engage in an “open information exchange” with their patients that focuses on “pragmatism, patient experience, known cannabinoid effects, and harm reduction.” In these conversations, the editorialists recommend noting that, “as with other analgesics, some persons will benefit, and others will not.”

They also offered some practical guidance: “Clinicians could suggest using tinctures (effect onset, 15-45 minutes) for breakthrough pain and edibles or capsules (which last about 6-8 hours) for extended relief. ... The scientific literature suggests that CBD doses could start at 5-10 mg twice daily and increase to 40-50 mg daily, whereas THC doses could start at 0.5-3 mg (initially at night) and increase to 30-40 mg/day.”

David Copenhaver, MD, MPH, clinical professor and chief of the division of pain medicine at UC Davis Health, Sacramento, shared a similar clinical mindset for patients choosing between opioids and cannabis-based products, specifically, CBD.

Compared with opioids, “the side-effect profile for CBD is less and the risk of mortality is less,” Dr. Copenhaver said in an interview, pointing out that nobody, to his knowledge, has ever died from an overdose of cannabis alone, and that CBD doses up to 1,000 mg/kg have been safely tolerated in people. “You present that, and most patients will say, ‘You know, I’d like to give this a try.’”

If so, Dr. Copenhaver makes sure patients know about a nonmedical risk: “The risk to the pocketbook.” Unlike opioids, which are covered under most insurance policies, most cannabis-based therapies are self-pay.

Buyers may get what they pay for, Dr. Copenhaver said, since products vary in quality, as do the dispensaries, from “very modest,” to highly sophisticated, with some even using chromatographic datasets to support the purity of their products.

Dr. Copenhaver steers his patients toward these more sophisticated retailers. Their expertise appears to be paying off, he said, not only in relief for patients, but also in market share. “Survival of the most fit will occur in the marketplace based on the results,” he said. “Unfortunately, some of that information doesn’t get percolated out into the literature.”

For investigators to fully uncover what cannabis-based products can do for chronic pain, Dr. Copenhaver said they need to get as “granular” as the leading dispensaries, which may first require recognition of the “very expansive opportunity” that less-studied cannabinoids may provide.

The study was supported by the Agency for Healthcare Research and Quality, U.S. Department of Health & Human Services. The investigators, Dr. Boehnke, Dr. Clauw, and Dr. Copenhaver, disclosed no conflicts of interest.

Cannabis-based products may control chronic pain as effectively as opioids, but adverse effects are common, and long-term safety remains unknown, according to a new study.

Several other systematic reviews have recently evaluated cannabinoids for treating chronic pain, but the new study’s methodology was “distinct” in “important ways,” leading to “conclusions that differ from other reviews,” according to the authors of the paper published in the Annals of Internal Medicine.

In the new systematic review, synthetic products with high THC:CBD ratios were associated with moderate improvements in pain, whereas plant-based products with comparable THC:CBD ratios offered less relief, said study author Marian S. McDonagh, PharmD, professor of medical informatics and clinical epidemiology, and codirector of the Evidence-based Practice Center at Oregon Health & Science University, Portland, and colleagues.

Specifically, the investigators stratified cannabis-based interventions according to relative content of two key cannabinoids: THC and CBD. Products were sorted into five categories: high THC:CBD ratio (at least 2:1), comparable THC:CBD ratio (less than 2:1 but more than 1:2), low THC:CBD ratio (no more than 1:2), whole-plant cannabis products, and other cannabinoids.

“In preclinical studies, THC and related compounds have demonstrated analgesic properties, although its psychoactive effects and addiction potential may limit its suitability as an analgesic,” the investigators wrote. “CBD and other cannabinoids may also have some analgesic or anti-inflammatory properties and are not believed to be psychoactive or addictive. Given the variation in analgesic effect with THC and CBD, response may differ according to the ratio of THC to CBD in products used to treat pain.”

The final analysis included 18 randomized placebo-controlled trials involving 1,740 individuals and 7 cohort studies involving 13,095 individuals. Most of the studies were short-term, lasting 1-6 months.

Pain was scored on a ten-point scale, with improvements reported as the mean difference from baseline to post treatment. A mean difference in pain score of 0.5-1.0 was considered a “small effect,” an improvement of 1-2 points was considered a “moderate effect,” and an improvement greater than 2 points was considered a “large effect.”
 

Cannabis-based products with relatively high THC:CBD ratios showed efficacy

Synthetic products with high THC:CBD ratios offered moderate pain relief, based on a mean difference in pain score of –1.15 (95% confidence interval, –1.99 to –0.54), whereas products with comparable THC:CBD ratios were associated with a small effect on pain, with a mean difference of –0.52 (95% CI, –0.95 to –0.19).

According to Dr. McDonagh, treatment response rates were on par with response rates for more conventional treatments, “such as opioids or specific antidepressant drugs,” but data for the cannabis-based products are weaker.

“The amount of evidence available for cannabis-related products is very limited for [response rates], and therefore less certain,” Dr. McDonagh said in an interview. “The average reduction in pain severity is also similar to some other treatments, but we do not have studies directly comparing these treatments to draw conclusions.”

Although the cannabis-based products with relatively high and comparable THC:CBD ratios showed efficacy, they were also associated with “moderate to large increased risk for dizziness, sedation, and nausea,” the investigators wrote, noting that evidence was insufficient to characterize other “key adverse event outcomes” that may occur with long-term use, such as “psychosis, cannabis use disorder, and cognitive deficits.”

For products with low THC:CBD ratios, or without reported THC:CBD ratios, data were too scarce to reach any conclusions at all about safety or efficacy, highlighting the sizable knowledge gaps that remain in the area, the authors said.

“The current evidence on cannabis-related products for chronic pain is quite limited,” Dr. McDonagh said in an interview. “Patients with chronic pain should consult with their doctor to discuss which of the many options for treating chronic pain is best for them to start with.”
 

Patients may face resistance when asking about cannabis

According to Kevin F. Boehnke, PhD, and Daniel J. Clauw, MD, of the anesthesiology department and Chronic Pain and Fatigue Research Center at the University of Michigan, Ann Arbor, patients with chronic pain may face resistance, or even risk of being reported, when asking about cannabis-based products.

“Some physicians cite lack of data as rationale for not engaging with patients who wish to use or currently use cannabis,” Dr. Boehnke and Dr. Clauw wrote in an accompanying editorial. “Such practices may reflect consideration of cannabis solely as a drug of misuse (even in the 37 states where medical cannabis is legal) and requirements to refer patients who disclose or test positive for cannabis use to addiction services or decline to refill opioid prescriptions.”

Instead of shutting patients out, Dr. Boehnke and Dr. Clauw suggested clinicians engage in an “open information exchange” with their patients that focuses on “pragmatism, patient experience, known cannabinoid effects, and harm reduction.” In these conversations, the editorialists recommend noting that, “as with other analgesics, some persons will benefit, and others will not.”

They also offered some practical guidance: “Clinicians could suggest using tinctures (effect onset, 15-45 minutes) for breakthrough pain and edibles or capsules (which last about 6-8 hours) for extended relief. ... The scientific literature suggests that CBD doses could start at 5-10 mg twice daily and increase to 40-50 mg daily, whereas THC doses could start at 0.5-3 mg (initially at night) and increase to 30-40 mg/day.”

David Copenhaver, MD, MPH, clinical professor and chief of the division of pain medicine at UC Davis Health, Sacramento, shared a similar clinical mindset for patients choosing between opioids and cannabis-based products, specifically, CBD.

Compared with opioids, “the side-effect profile for CBD is less and the risk of mortality is less,” Dr. Copenhaver said in an interview, pointing out that nobody, to his knowledge, has ever died from an overdose of cannabis alone, and that CBD doses up to 1,000 mg/kg have been safely tolerated in people. “You present that, and most patients will say, ‘You know, I’d like to give this a try.’”

If so, Dr. Copenhaver makes sure patients know about a nonmedical risk: “The risk to the pocketbook.” Unlike opioids, which are covered under most insurance policies, most cannabis-based therapies are self-pay.

Buyers may get what they pay for, Dr. Copenhaver said, since products vary in quality, as do the dispensaries, from “very modest,” to highly sophisticated, with some even using chromatographic datasets to support the purity of their products.

Dr. Copenhaver steers his patients toward these more sophisticated retailers. Their expertise appears to be paying off, he said, not only in relief for patients, but also in market share. “Survival of the most fit will occur in the marketplace based on the results,” he said. “Unfortunately, some of that information doesn’t get percolated out into the literature.”

For investigators to fully uncover what cannabis-based products can do for chronic pain, Dr. Copenhaver said they need to get as “granular” as the leading dispensaries, which may first require recognition of the “very expansive opportunity” that less-studied cannabinoids may provide.

The study was supported by the Agency for Healthcare Research and Quality, U.S. Department of Health & Human Services. The investigators, Dr. Boehnke, Dr. Clauw, and Dr. Copenhaver, disclosed no conflicts of interest.

SAN DIEGO – In a 2006 report of complications from laser dermatologic surgery, one of the authors, Dieter Manstein, MD, PhD, who had subjected his forearm to treatment with a fractional laser skin resurfacing prototype device, was included as 1 of the 19 featured cases.

Dr. Manstein, of the Cutaneous Biology Research Center in the department of dermatology at Massachusetts General Hospital, Boston, was exposed to three test spots in the evaluation of the effects of different microscopic thermal zone densities for the prototype device, emitting at 1,450 nm and an energy per MTZ of 3 mJ.

Two years later, hypopigmentation persisted at the test site treated with the highest MTZ density, while two other sites treated with the lower MTZ densities did not show any dyspigmentation. But he noticed something else during the experiment: He felt minimal to no pain as each test site was being treated.

“It took 7 minutes without any cooling or anesthesia,” Dr. Manstein recalled at the annual meeting of the American Society for Laser Medicine and Surgery. “It was not completely painless, but each time the laser was applied, sometimes I felt a little prick, sometimes I felt nothing.” Essentially, he added, “we created cell injury with a focused laser beam without anesthesia,” but this could also indicate that if skin is treated with a fractional laser very slowly, anesthesia is not needed. “Current devices are meant to treat very quickly, but if we [treat] slowly, maybe you could remove lesions painlessly without anesthesia.”

The observation from that experiment also led Dr. Manstein and colleagues to wonder: Could a focused laser beam pattern be used to assess cutaneous innervation? If so, they postulated, perhaps it could be used to not only assess nerve sensitivity of candidates for dermatologic surgery, but as a tool to help diagnose small fiber neuropathies such as diabetic neuropathy, and neuropathies in patients with HIV and sarcoidosis.

The current gold standard for making these diagnoses involves a skin biopsy, immunohistochemical analysis, and nerve fiber quantification, which is not widely available. It also requires strict histologic processing and nerve counting rules. Confocal microscopy of nerve fibers in the cornea is another approach, but is very difficult to perform, “so it would be nice if there was a simple way” to determine nerve fiber density in the skin using a focused laser beam, Dr. Manstein said.

With help from Payal Patel, MD, a dermatology research fellow at MGH, Dr. Manstein and colleagues have developed an intraepidermal nerve fiber density diagnostic device prototype that uses an erbium laser to conduct in vivo exposures, records each subject’s perception of a stimulus, and maps the areas of stimulus response. Current diameters being studied range from 0.076-1.15 mm and depths less than 0.71 mm. “We can focus the laser beam, preset the beam diameter, and very slowly, in a controlled manner, make a rectangular pattern, and after each time, inquire if the subject felt the pulse or not,” Dr. Manstein explained.

“This laser could become a new method for diagnosing nerve fiber neuropathies. If this works well, I think we can miniaturize the device,” he added.

Dr. Manstein disclosed that he is a consultant for Blossom Innovations, R2 Dermatology, and AVAVA. He is also a member of the advisory board for Blossom Innovations.

SAN DIEGO – In a 2006 report of complications from laser dermatologic surgery, one of the authors, Dieter Manstein, MD, PhD, who had subjected his forearm to treatment with a fractional laser skin resurfacing prototype device, was included as 1 of the 19 featured cases.

Dr. Manstein, of the Cutaneous Biology Research Center in the department of dermatology at Massachusetts General Hospital, Boston, was exposed to three test spots in the evaluation of the effects of different microscopic thermal zone densities for the prototype device, emitting at 1,450 nm and an energy per MTZ of 3 mJ.

Two years later, hypopigmentation persisted at the test site treated with the highest MTZ density, while two other sites treated with the lower MTZ densities did not show any dyspigmentation. But he noticed something else during the experiment: He felt minimal to no pain as each test site was being treated.

“It took 7 minutes without any cooling or anesthesia,” Dr. Manstein recalled at the annual meeting of the American Society for Laser Medicine and Surgery. “It was not completely painless, but each time the laser was applied, sometimes I felt a little prick, sometimes I felt nothing.” Essentially, he added, “we created cell injury with a focused laser beam without anesthesia,” but this could also indicate that if skin is treated with a fractional laser very slowly, anesthesia is not needed. “Current devices are meant to treat very quickly, but if we [treat] slowly, maybe you could remove lesions painlessly without anesthesia.”

The observation from that experiment also led Dr. Manstein and colleagues to wonder: Could a focused laser beam pattern be used to assess cutaneous innervation? If so, they postulated, perhaps it could be used to not only assess nerve sensitivity of candidates for dermatologic surgery, but as a tool to help diagnose small fiber neuropathies such as diabetic neuropathy, and neuropathies in patients with HIV and sarcoidosis.

The current gold standard for making these diagnoses involves a skin biopsy, immunohistochemical analysis, and nerve fiber quantification, which is not widely available. It also requires strict histologic processing and nerve counting rules. Confocal microscopy of nerve fibers in the cornea is another approach, but is very difficult to perform, “so it would be nice if there was a simple way” to determine nerve fiber density in the skin using a focused laser beam, Dr. Manstein said.

With help from Payal Patel, MD, a dermatology research fellow at MGH, Dr. Manstein and colleagues have developed an intraepidermal nerve fiber density diagnostic device prototype that uses an erbium laser to conduct in vivo exposures, records each subject’s perception of a stimulus, and maps the areas of stimulus response. Current diameters being studied range from 0.076-1.15 mm and depths less than 0.71 mm. “We can focus the laser beam, preset the beam diameter, and very slowly, in a controlled manner, make a rectangular pattern, and after each time, inquire if the subject felt the pulse or not,” Dr. Manstein explained.

“This laser could become a new method for diagnosing nerve fiber neuropathies. If this works well, I think we can miniaturize the device,” he added.

Dr. Manstein disclosed that he is a consultant for Blossom Innovations, R2 Dermatology, and AVAVA. He is also a member of the advisory board for Blossom Innovations.

SAN DIEGO – In a 2006 report of complications from laser dermatologic surgery, one of the authors, Dieter Manstein, MD, PhD, who had subjected his forearm to treatment with a fractional laser skin resurfacing prototype device, was included as 1 of the 19 featured cases.

Dr. Manstein, of the Cutaneous Biology Research Center in the department of dermatology at Massachusetts General Hospital, Boston, was exposed to three test spots in the evaluation of the effects of different microscopic thermal zone densities for the prototype device, emitting at 1,450 nm and an energy per MTZ of 3 mJ.

Two years later, hypopigmentation persisted at the test site treated with the highest MTZ density, while two other sites treated with the lower MTZ densities did not show any dyspigmentation. But he noticed something else during the experiment: He felt minimal to no pain as each test site was being treated.

“It took 7 minutes without any cooling or anesthesia,” Dr. Manstein recalled at the annual meeting of the American Society for Laser Medicine and Surgery. “It was not completely painless, but each time the laser was applied, sometimes I felt a little prick, sometimes I felt nothing.” Essentially, he added, “we created cell injury with a focused laser beam without anesthesia,” but this could also indicate that if skin is treated with a fractional laser very slowly, anesthesia is not needed. “Current devices are meant to treat very quickly, but if we [treat] slowly, maybe you could remove lesions painlessly without anesthesia.”

The observation from that experiment also led Dr. Manstein and colleagues to wonder: Could a focused laser beam pattern be used to assess cutaneous innervation? If so, they postulated, perhaps it could be used to not only assess nerve sensitivity of candidates for dermatologic surgery, but as a tool to help diagnose small fiber neuropathies such as diabetic neuropathy, and neuropathies in patients with HIV and sarcoidosis.

The current gold standard for making these diagnoses involves a skin biopsy, immunohistochemical analysis, and nerve fiber quantification, which is not widely available. It also requires strict histologic processing and nerve counting rules. Confocal microscopy of nerve fibers in the cornea is another approach, but is very difficult to perform, “so it would be nice if there was a simple way” to determine nerve fiber density in the skin using a focused laser beam, Dr. Manstein said.

With help from Payal Patel, MD, a dermatology research fellow at MGH, Dr. Manstein and colleagues have developed an intraepidermal nerve fiber density diagnostic device prototype that uses an erbium laser to conduct in vivo exposures, records each subject’s perception of a stimulus, and maps the areas of stimulus response. Current diameters being studied range from 0.076-1.15 mm and depths less than 0.71 mm. “We can focus the laser beam, preset the beam diameter, and very slowly, in a controlled manner, make a rectangular pattern, and after each time, inquire if the subject felt the pulse or not,” Dr. Manstein explained.

“This laser could become a new method for diagnosing nerve fiber neuropathies. If this works well, I think we can miniaturize the device,” he added.

Dr. Manstein disclosed that he is a consultant for Blossom Innovations, R2 Dermatology, and AVAVA. He is also a member of the advisory board for Blossom Innovations.

The study covered in this summary was published in researchsquare.com and has not yet been peer reviewed.

Key takeaways

• The study found a high burden of chronic pain in Syrian adult refugees in Norway that has adverse consequences for their daily functioning.
• Anxiety, , and PTSD are associated with higher levels of chronic pain in the refugee population studied.
• Being a male refugee is associated more strongly with anxiety and depression leading to functional impairment than being a woman. Being a woman is associated with higher odds of chronic pain. Gender acted as an effect modifier between mental illness and functional impairment.
• Future research aimed toward harmonizing and standardizing pain measurement to measure its effect on health burden is needed. Pain should be understood under an ethnocultural construct to enhance transcultural validity.

Why this matters

• The present cross-sectional survey of adult refugees from Syria resettled in Norway is only one of a few studies investigating the burden of chronic pain and how it relates to mental ill health in a general refugee population. Elevated rates of PTSD, depression, and anxiety have been repeatedly found in refugee populations, and high levels of pain have also been documented.
• Attention to the association between chronic pain and mental health should be made by personnel working with refugees. Because of the gender-specific associations between mental illness and functional impairment, initiatives addressing mental health, chronic pain, or functional impairment in refugee populations should consider gender when tailoring their content and outreach.

Study design

• The study involved a cross-sectional, postal survey questionnaire of participants randomly drawn from full population registries in Norway. There was an initial low response. Invitations were sent out in November 2018 and did not close until September 2019. Several efforts were made to boost participation, including one postal or telephone reminder to all nonresponders.
• Participants were refugee adults from Syria aged 18 and older who arrived in Norway between 2015 and 2017. Gender was tested as an effect modifier. 
• Chronic pain was measured with 10 items on the questionnaire and was defined as pain for 3 or more consecutive months in the last year. It included both musculoskeletal pain and pain in five other body regions (stomach, head, genital area, chest, other). 
• Anxiety, depression, and PTSD symptoms were measured with the 25-item Hopkins Symptom Checklist, the Harvard Trauma Questionnaire, and the Refugee Trauma History Checklist. 
• Questionnaires on perceived general health regarding refugee perceptions of their own health, and functional impairment affecting daily activities because of illness, disability, and mental health were adapted from the European Social Survey 2010.

Key results

• A total of 902 participants who responded to the questionnaire were included in the study from roughly 10,000 invitations, giving a participation rate of about 10%, with no differences in gender distribution.
• The overall prevalence of severe chronic pain was 43.1%, and overall perception of poor general health was 39.9%. 
• There was a strong association of chronic pain with all mental illness measured, poor perceived general health, and functional impairment (P < .001).  All mental health variables were associated with increased odds of chronic pain (anxiety odds ratio), 2.42; depression, OR, 2.28; PTSD, OR, 1.97; all OR fully adjusted).
• Chronic pain was associated with poor perceived general health and functional impairment with no difference across gender. Mental health showed weaker association with poor perceived general health than chronic pain.
• Syrian men with mental health had three times higher odds of functional impairment.  For women, there was no evidence of association between any of the mental ill health variables and functional impairment. Being a woman was associated with chronic pain and poor perceived general health but not functional impairment.
• Being a woman was associated with 50% higher odds of chronic pain in both unadjusted and adjusted models.

Limitations

• With a 10% response rate, selection bias in this cross-sectional study may have been present.
• The cross-sectional design of the study limits causality.
• The validity of the survey is questionable because of transcultural construct regarding pain and mental illness.
• Regression models were built with data at hand. Without preregistered plans for data handling, the findings should be viewed as exploratory with a risk for false-positive findings.

Disclosures

• No external funding was received.  The study was funded by the Norwegian Center for Violence and Traumatic Stress Studies.
• None of the authors disclosed relevant financial relationships.

This is a summary of a preprint research study, “Chronic pain, mental health and functional impairment in adult refugees from Syria resettled in Norway: a cross-sectional study,” written by researchers at the Norwegian Centre for Violence and Traumatic Stress Studies in Oslo, the Norwegian Institute of Public Health in Oslo, and the Weill Cornell Medicine in New York City on Research Square.  This study has not yet been peer reviewed. The full text of the study can be found on researchsquare.com. A version of this article first appeared on Medscape.com.

The study covered in this summary was published in researchsquare.com and has not yet been peer reviewed.

Key takeaways

• The study found a high burden of chronic pain in Syrian adult refugees in Norway that has adverse consequences for their daily functioning.
• Anxiety, , and PTSD are associated with higher levels of chronic pain in the refugee population studied.
• Being a male refugee is associated more strongly with anxiety and depression leading to functional impairment than being a woman. Being a woman is associated with higher odds of chronic pain. Gender acted as an effect modifier between mental illness and functional impairment.
• Future research aimed toward harmonizing and standardizing pain measurement to measure its effect on health burden is needed. Pain should be understood under an ethnocultural construct to enhance transcultural validity.

Why this matters

• The present cross-sectional survey of adult refugees from Syria resettled in Norway is only one of a few studies investigating the burden of chronic pain and how it relates to mental ill health in a general refugee population. Elevated rates of PTSD, depression, and anxiety have been repeatedly found in refugee populations, and high levels of pain have also been documented.
• Attention to the association between chronic pain and mental health should be made by personnel working with refugees. Because of the gender-specific associations between mental illness and functional impairment, initiatives addressing mental health, chronic pain, or functional impairment in refugee populations should consider gender when tailoring their content and outreach.

Study design

• The study involved a cross-sectional, postal survey questionnaire of participants randomly drawn from full population registries in Norway. There was an initial low response. Invitations were sent out in November 2018 and did not close until September 2019. Several efforts were made to boost participation, including one postal or telephone reminder to all nonresponders.
• Participants were refugee adults from Syria aged 18 and older who arrived in Norway between 2015 and 2017. Gender was tested as an effect modifier. 
• Chronic pain was measured with 10 items on the questionnaire and was defined as pain for 3 or more consecutive months in the last year. It included both musculoskeletal pain and pain in five other body regions (stomach, head, genital area, chest, other). 
• Anxiety, depression, and PTSD symptoms were measured with the 25-item Hopkins Symptom Checklist, the Harvard Trauma Questionnaire, and the Refugee Trauma History Checklist. 
• Questionnaires on perceived general health regarding refugee perceptions of their own health, and functional impairment affecting daily activities because of illness, disability, and mental health were adapted from the European Social Survey 2010.

Key results

• A total of 902 participants who responded to the questionnaire were included in the study from roughly 10,000 invitations, giving a participation rate of about 10%, with no differences in gender distribution.
• The overall prevalence of severe chronic pain was 43.1%, and overall perception of poor general health was 39.9%. 
• There was a strong association of chronic pain with all mental illness measured, poor perceived general health, and functional impairment (P < .001).  All mental health variables were associated with increased odds of chronic pain (anxiety odds ratio), 2.42; depression, OR, 2.28; PTSD, OR, 1.97; all OR fully adjusted).
• Chronic pain was associated with poor perceived general health and functional impairment with no difference across gender. Mental health showed weaker association with poor perceived general health than chronic pain.
• Syrian men with mental health had three times higher odds of functional impairment.  For women, there was no evidence of association between any of the mental ill health variables and functional impairment. Being a woman was associated with chronic pain and poor perceived general health but not functional impairment.
• Being a woman was associated with 50% higher odds of chronic pain in both unadjusted and adjusted models.

Limitations

• With a 10% response rate, selection bias in this cross-sectional study may have been present.
• The cross-sectional design of the study limits causality.
• The validity of the survey is questionable because of transcultural construct regarding pain and mental illness.
• Regression models were built with data at hand. Without preregistered plans for data handling, the findings should be viewed as exploratory with a risk for false-positive findings.

Disclosures

• No external funding was received.  The study was funded by the Norwegian Center for Violence and Traumatic Stress Studies.
• None of the authors disclosed relevant financial relationships.

This is a summary of a preprint research study, “Chronic pain, mental health and functional impairment in adult refugees from Syria resettled in Norway: a cross-sectional study,” written by researchers at the Norwegian Centre for Violence and Traumatic Stress Studies in Oslo, the Norwegian Institute of Public Health in Oslo, and the Weill Cornell Medicine in New York City on Research Square.  This study has not yet been peer reviewed. The full text of the study can be found on researchsquare.com. A version of this article first appeared on Medscape.com.

The study covered in this summary was published in researchsquare.com and has not yet been peer reviewed.

Key takeaways

• The study found a high burden of chronic pain in Syrian adult refugees in Norway that has adverse consequences for their daily functioning.
• Anxiety, , and PTSD are associated with higher levels of chronic pain in the refugee population studied.
• Being a male refugee is associated more strongly with anxiety and depression leading to functional impairment than being a woman. Being a woman is associated with higher odds of chronic pain. Gender acted as an effect modifier between mental illness and functional impairment.
• Future research aimed toward harmonizing and standardizing pain measurement to measure its effect on health burden is needed. Pain should be understood under an ethnocultural construct to enhance transcultural validity.

Why this matters

• The present cross-sectional survey of adult refugees from Syria resettled in Norway is only one of a few studies investigating the burden of chronic pain and how it relates to mental ill health in a general refugee population. Elevated rates of PTSD, depression, and anxiety have been repeatedly found in refugee populations, and high levels of pain have also been documented.
• Attention to the association between chronic pain and mental health should be made by personnel working with refugees. Because of the gender-specific associations between mental illness and functional impairment, initiatives addressing mental health, chronic pain, or functional impairment in refugee populations should consider gender when tailoring their content and outreach.

Study design

• The study involved a cross-sectional, postal survey questionnaire of participants randomly drawn from full population registries in Norway. There was an initial low response. Invitations were sent out in November 2018 and did not close until September 2019. Several efforts were made to boost participation, including one postal or telephone reminder to all nonresponders.
• Participants were refugee adults from Syria aged 18 and older who arrived in Norway between 2015 and 2017. Gender was tested as an effect modifier. 
• Chronic pain was measured with 10 items on the questionnaire and was defined as pain for 3 or more consecutive months in the last year. It included both musculoskeletal pain and pain in five other body regions (stomach, head, genital area, chest, other). 
• Anxiety, depression, and PTSD symptoms were measured with the 25-item Hopkins Symptom Checklist, the Harvard Trauma Questionnaire, and the Refugee Trauma History Checklist. 
• Questionnaires on perceived general health regarding refugee perceptions of their own health, and functional impairment affecting daily activities because of illness, disability, and mental health were adapted from the European Social Survey 2010.

Key results

• A total of 902 participants who responded to the questionnaire were included in the study from roughly 10,000 invitations, giving a participation rate of about 10%, with no differences in gender distribution.
• The overall prevalence of severe chronic pain was 43.1%, and overall perception of poor general health was 39.9%. 
• There was a strong association of chronic pain with all mental illness measured, poor perceived general health, and functional impairment (P < .001).  All mental health variables were associated with increased odds of chronic pain (anxiety odds ratio), 2.42; depression, OR, 2.28; PTSD, OR, 1.97; all OR fully adjusted).
• Chronic pain was associated with poor perceived general health and functional impairment with no difference across gender. Mental health showed weaker association with poor perceived general health than chronic pain.
• Syrian men with mental health had three times higher odds of functional impairment.  For women, there was no evidence of association between any of the mental ill health variables and functional impairment. Being a woman was associated with chronic pain and poor perceived general health but not functional impairment.
• Being a woman was associated with 50% higher odds of chronic pain in both unadjusted and adjusted models.

Limitations

• With a 10% response rate, selection bias in this cross-sectional study may have been present.
• The cross-sectional design of the study limits causality.
• The validity of the survey is questionable because of transcultural construct regarding pain and mental illness.
• Regression models were built with data at hand. Without preregistered plans for data handling, the findings should be viewed as exploratory with a risk for false-positive findings.

Disclosures

• No external funding was received.  The study was funded by the Norwegian Center for Violence and Traumatic Stress Studies.
• None of the authors disclosed relevant financial relationships.

This is a summary of a preprint research study, “Chronic pain, mental health and functional impairment in adult refugees from Syria resettled in Norway: a cross-sectional study,” written by researchers at the Norwegian Centre for Violence and Traumatic Stress Studies in Oslo, the Norwegian Institute of Public Health in Oslo, and the Weill Cornell Medicine in New York City on Research Square.  This study has not yet been peer reviewed. The full text of the study can be found on researchsquare.com. A version of this article first appeared on Medscape.com.

Study 1 Overview (SCOT-HEART Investigators)

Objective: To assess cardiovascular mortality and nonfatal myocardial infarction at 5 years in patients with stable chest pain referred to cardiology clinic for management with either standard care plus computed tomography angiography (CTA) or standard care alone.

Design: Multicenter, randomized, open-label prospective study.

Setting and participants: A total of 4146 patients with stable chest pain were randomized to standard care or standard care plus CTA at 12 centers across Scotland and were followed for 5 years.

Main outcome measures: The primary end point was a composite of death from coronary heart disease or nonfatal myocardial infarction. Main secondary end points were nonfatal myocardial infarction, nonfatal stroke, and frequency of invasive coronary angiography (ICA) and coronary revascularization with percutaneous coronary intervention or coronary artery bypass grafting.

Main results: The primary outcome including the composite of cardiovascular death or nonfatal myocardial infarction was lower in the CTA group than in the standard-care group at 2.3% (48 of 2073 patients) vs 3.9% (81 of 2073 patients), respectively (hazard ratio, 0.59; 95% CI, 0.41-0.84; P = .004). Although there was a higher rate of ICA and coronary revascularization in the CTA group than in the standard-care group in the first few months of follow-up, the overall rates were similar at 5 years, with ICA performed in 491 patients and 502 patients in the CTA vs standard-care groups, respectively (hazard ratio, 1.00; 95% CI, 0.88-1.13). Similarly, coronary revascularization was performed in 279 patients in the CTA group and in 267 patients in the standard-care group (hazard ratio, 1.07; 95% CI, 0.91-1.27). There were, however, more preventive therapies initiated in patients in the CTA group than in the standard-care group (odds ratio, 1.40; 95% CI, 1.19-1.65).

Conclusion: In patients with stable chest pain, the use of CTA in addition to standard care resulted in a significantly lower rate of death from coronary heart disease or nonfatal myocardial infarction at 5 years; the main contributor to this outcome was a reduced nonfatal myocardial infarction rate. There was no difference in the rate of coronary angiography or coronary revascularization between the 2 groups at 5 years.

Study 2 Overview (DISCHARGE Trial Group)

Objective: To compare the effectiveness of computed tomography (CT) with ICA as a diagnostic tool in patients with stable chest pain and intermediate pretest probability of coronary artery disease (CAD).

Design: Multicenter, randomized, assessor-blinded pragmatic prospective study.

Setting and participants: A total of 3667 patients with stable chest pain and intermediate pretest probability of CAD were enrolled at 26 centers and randomized into CT or ICA groups. Only 3561 patients were included in the modified intention-to-treat analysis, with 1808 patients and 1753 patients in the CT and ICA groups, respectively.

Main outcome measures: The primary outcome was a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke over 3.5 years. The main secondary outcomes were major procedure-related complications and patient-reported angina pectoris during the last 4 weeks of follow up.

Main results: The primary outcome occurred in 38 of 1808 patients (2.1%) in the CT group and in 52 of 1753 patients (3.0%) in the ICA group (hazard ratio, 0.70; 95% CI, 0.46-1.07; P = .10). The secondary outcomes showed that major procedure-related complications occurred in 9 patients (0.5%) in the CT group and in 33 patients (1.9%) in the ICA group (hazard ratio, 0.26; 95% CI, 0.13-0.55). Rates of patient-reported angina in the final 4 weeks of follow-up were 8.8% in the CT group and 7.5% in the ICA group (odds ratio, 1.17; 95% CI, 0.92-1.48).

Conclusion: Risk of major adverse cardiovascular events from the primary outcome were similar in both the CT and ICA groups among patients with stable chest pain and intermediate pretest probability of CAD. Patients referred for CT had a lower rate of coronary angiography leading to fewer major procedure-related complications in these patients than in those referred for ICA.

Evaluation and treatment of obstructive atherosclerosis is an important part of clinical care in patients presenting with angina symptoms.¹ Thus, the initial investigation for patients with suspected obstructive CAD includes ruling out acute coronary syndrome and assessing quality of life.¹ The diagnostic test should be tailored to the pretest probability for the diagnosis of obstructive CAD.²

In the United States, stress testing traditionally has been used for the initial assessment in patients with suspected CAD,³ but recently CTA has been utilized more frequently for this purpose. Compared to a stress test, which often helps identify and assess ischemia, CTA can provide anatomical assessment, with higher sensitivity to identify CAD.⁴ Furthermore, it can distinguish nonobstructive plaques that can be challenging to identify with stress test alone.

Whether CTA is superior to stress testing as the initial assessment for CAD has been debated. The randomized PROMISE trial compared patients with stable angina who underwent functional stress testing or CTA as an initial strategy.⁵ They reported a similar outcome between the 2 groups at a median follow-up of 2 years. However, in the original SCOT-HEART trial (CT coronary angiography in patients with suspected angina due to coronary heart disease), which was published in the same year as the PROMISE trial, the patients who underwent initial assessment with CTA had a numerically lower composite end point of cardiac death and myocardial infarction at a median follow-up of 1.7 years (1.3% vs 2.0%, P = .053).⁶

Given this result, the SCOT-HEART investigators extended the follow-up to evaluate the composite end point of death from coronary heart disease or nonfatal myocardial infarction at 5 years.⁷ This trial enrolled patients who were initially referred to a cardiology clinic for evaluation of chest pain, and they were randomized to standard care plus CTA or standard care alone. At a median duration of 4.8 years, the primary outcome was lower in the CTA group (2.3%, 48 patients) than in the standard-care group (3.9%, 81 patients) (hazard ratio, 0.58; 95% CI, 0.41-0.84; P = .004). Both groups had similar rates of invasive coronary angiography and had similar coronary revascularization rates.

It is hypothesized that this lower rate of nonfatal myocardial infarction in patients with CTA plus standard care is associated with a higher rate of preventive therapies initiated in patients in the CTA-plus-standard-care group compared to standard care alone. However, the difference in the standard-care group should be noted when compared to the PROMISE trial. In the PROMISE trial, the comparator group had predominantly stress imaging (either nuclear stress test or echocardiography), while in the SCOT-HEART trial, the group had predominantly stress electrocardiogram (ECG), and only 10% of the patients underwent stress imaging. It is possible the difference seen in the rate of nonfatal myocardial infarction was due to suboptimal diagnosis of CAD with stress ECG, which has lower sensitivity compared to stress imaging.

The DISCHARGE trial investigated the effectiveness of CTA vs ICA as the initial diagnostic test in the management of patients with stable chest pain and an intermediate pretest probability of obstructive CAD.⁸ At 3.5 years of follow-up, the primary composite of cardiovascular death, myocardial infarction, or stroke was similar in both groups (2.1% vs 3.0; hazard ratio, 0.70; 95% CI, 0.46-1.07; P = .10). Importantly, as fewer patients underwent ICA, the risk of procedure-related complication was lower in the CTA group than in the ICA group. However, it is important to note that only 25% of the patients diagnosed with obstructive CAD had greater than 50% vessel stenosis, which raises the question of whether an initial invasive strategy is appropriate for this population.

The strengths of these 2 studies include the large number of patients enrolled along with adequate follow-up, 5 years in the SCOT-HEART trial and 3.5 years in the DISCHARGE trial. The 2 studies overall suggest the usefulness of CTA for assessment of CAD. However, the control groups were very different in these 2 trials. In the SCOT-HEART study, the comparator group was primarily assessed by stress ECG, while in the DISCHARGE study, the comparator group was primary assessed by ICA. In the PROMISE trial, the composite end point of death, myocardial infarction, hospitalization for unstable angina, or major procedural complication was similar when the strategy of initial CTA was compared to functional testing with imaging (exercise ECG, nuclear stress testing, or echocardiography).⁵ Thus, clinical assessment is still needed when clinicians are selecting the appropriate diagnostic test for patients with suspected CAD. The most recent guidelines give similar recommendations for CTA compared to stress imaging.⁹ Whether further improvement in CTA acquisition or the addition of CT fractional flow reserve can further improve outcomes requires additional study.

Applications for Clinical Practice and System Implementation

In patients with stable chest pain and intermediate pretest probability of CAD, CTA is useful in diagnosis compared to stress ECG and in reducing utilization of low-yield ICA. Whether CTA is more useful compared to the other noninvasive stress imaging modalities in this population requires further study.

Practice Points

• In patients with stable chest pain and intermediate pretest probability of CAD, CTA is useful compared to stress ECG.
• Use of CTA can potentially reduce the use of low-yield coronary angiography.

–Thai Nguyen, MD, Albert Chan, MD, Taishi Hirai, MD
University of Missouri, Columbia, MO

Study 1 Overview (SCOT-HEART Investigators)

Objective: To assess cardiovascular mortality and nonfatal myocardial infarction at 5 years in patients with stable chest pain referred to cardiology clinic for management with either standard care plus computed tomography angiography (CTA) or standard care alone.

Design: Multicenter, randomized, open-label prospective study.

Setting and participants: A total of 4146 patients with stable chest pain were randomized to standard care or standard care plus CTA at 12 centers across Scotland and were followed for 5 years.

Main outcome measures: The primary end point was a composite of death from coronary heart disease or nonfatal myocardial infarction. Main secondary end points were nonfatal myocardial infarction, nonfatal stroke, and frequency of invasive coronary angiography (ICA) and coronary revascularization with percutaneous coronary intervention or coronary artery bypass grafting.

Main results: The primary outcome including the composite of cardiovascular death or nonfatal myocardial infarction was lower in the CTA group than in the standard-care group at 2.3% (48 of 2073 patients) vs 3.9% (81 of 2073 patients), respectively (hazard ratio, 0.59; 95% CI, 0.41-0.84; P = .004). Although there was a higher rate of ICA and coronary revascularization in the CTA group than in the standard-care group in the first few months of follow-up, the overall rates were similar at 5 years, with ICA performed in 491 patients and 502 patients in the CTA vs standard-care groups, respectively (hazard ratio, 1.00; 95% CI, 0.88-1.13). Similarly, coronary revascularization was performed in 279 patients in the CTA group and in 267 patients in the standard-care group (hazard ratio, 1.07; 95% CI, 0.91-1.27). There were, however, more preventive therapies initiated in patients in the CTA group than in the standard-care group (odds ratio, 1.40; 95% CI, 1.19-1.65).

Conclusion: In patients with stable chest pain, the use of CTA in addition to standard care resulted in a significantly lower rate of death from coronary heart disease or nonfatal myocardial infarction at 5 years; the main contributor to this outcome was a reduced nonfatal myocardial infarction rate. There was no difference in the rate of coronary angiography or coronary revascularization between the 2 groups at 5 years.

Study 2 Overview (DISCHARGE Trial Group)

Objective: To compare the effectiveness of computed tomography (CT) with ICA as a diagnostic tool in patients with stable chest pain and intermediate pretest probability of coronary artery disease (CAD).

Design: Multicenter, randomized, assessor-blinded pragmatic prospective study.

Setting and participants: A total of 3667 patients with stable chest pain and intermediate pretest probability of CAD were enrolled at 26 centers and randomized into CT or ICA groups. Only 3561 patients were included in the modified intention-to-treat analysis, with 1808 patients and 1753 patients in the CT and ICA groups, respectively.

Main outcome measures: The primary outcome was a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke over 3.5 years. The main secondary outcomes were major procedure-related complications and patient-reported angina pectoris during the last 4 weeks of follow up.

Main results: The primary outcome occurred in 38 of 1808 patients (2.1%) in the CT group and in 52 of 1753 patients (3.0%) in the ICA group (hazard ratio, 0.70; 95% CI, 0.46-1.07; P = .10). The secondary outcomes showed that major procedure-related complications occurred in 9 patients (0.5%) in the CT group and in 33 patients (1.9%) in the ICA group (hazard ratio, 0.26; 95% CI, 0.13-0.55). Rates of patient-reported angina in the final 4 weeks of follow-up were 8.8% in the CT group and 7.5% in the ICA group (odds ratio, 1.17; 95% CI, 0.92-1.48).

Conclusion: Risk of major adverse cardiovascular events from the primary outcome were similar in both the CT and ICA groups among patients with stable chest pain and intermediate pretest probability of CAD. Patients referred for CT had a lower rate of coronary angiography leading to fewer major procedure-related complications in these patients than in those referred for ICA.

Evaluation and treatment of obstructive atherosclerosis is an important part of clinical care in patients presenting with angina symptoms.¹ Thus, the initial investigation for patients with suspected obstructive CAD includes ruling out acute coronary syndrome and assessing quality of life.¹ The diagnostic test should be tailored to the pretest probability for the diagnosis of obstructive CAD.²

In the United States, stress testing traditionally has been used for the initial assessment in patients with suspected CAD,³ but recently CTA has been utilized more frequently for this purpose. Compared to a stress test, which often helps identify and assess ischemia, CTA can provide anatomical assessment, with higher sensitivity to identify CAD.⁴ Furthermore, it can distinguish nonobstructive plaques that can be challenging to identify with stress test alone.

Whether CTA is superior to stress testing as the initial assessment for CAD has been debated. The randomized PROMISE trial compared patients with stable angina who underwent functional stress testing or CTA as an initial strategy.⁵ They reported a similar outcome between the 2 groups at a median follow-up of 2 years. However, in the original SCOT-HEART trial (CT coronary angiography in patients with suspected angina due to coronary heart disease), which was published in the same year as the PROMISE trial, the patients who underwent initial assessment with CTA had a numerically lower composite end point of cardiac death and myocardial infarction at a median follow-up of 1.7 years (1.3% vs 2.0%, P = .053).⁶

Given this result, the SCOT-HEART investigators extended the follow-up to evaluate the composite end point of death from coronary heart disease or nonfatal myocardial infarction at 5 years.⁷ This trial enrolled patients who were initially referred to a cardiology clinic for evaluation of chest pain, and they were randomized to standard care plus CTA or standard care alone. At a median duration of 4.8 years, the primary outcome was lower in the CTA group (2.3%, 48 patients) than in the standard-care group (3.9%, 81 patients) (hazard ratio, 0.58; 95% CI, 0.41-0.84; P = .004). Both groups had similar rates of invasive coronary angiography and had similar coronary revascularization rates.

It is hypothesized that this lower rate of nonfatal myocardial infarction in patients with CTA plus standard care is associated with a higher rate of preventive therapies initiated in patients in the CTA-plus-standard-care group compared to standard care alone. However, the difference in the standard-care group should be noted when compared to the PROMISE trial. In the PROMISE trial, the comparator group had predominantly stress imaging (either nuclear stress test or echocardiography), while in the SCOT-HEART trial, the group had predominantly stress electrocardiogram (ECG), and only 10% of the patients underwent stress imaging. It is possible the difference seen in the rate of nonfatal myocardial infarction was due to suboptimal diagnosis of CAD with stress ECG, which has lower sensitivity compared to stress imaging.

The DISCHARGE trial investigated the effectiveness of CTA vs ICA as the initial diagnostic test in the management of patients with stable chest pain and an intermediate pretest probability of obstructive CAD.⁸ At 3.5 years of follow-up, the primary composite of cardiovascular death, myocardial infarction, or stroke was similar in both groups (2.1% vs 3.0; hazard ratio, 0.70; 95% CI, 0.46-1.07; P = .10). Importantly, as fewer patients underwent ICA, the risk of procedure-related complication was lower in the CTA group than in the ICA group. However, it is important to note that only 25% of the patients diagnosed with obstructive CAD had greater than 50% vessel stenosis, which raises the question of whether an initial invasive strategy is appropriate for this population.

The strengths of these 2 studies include the large number of patients enrolled along with adequate follow-up, 5 years in the SCOT-HEART trial and 3.5 years in the DISCHARGE trial. The 2 studies overall suggest the usefulness of CTA for assessment of CAD. However, the control groups were very different in these 2 trials. In the SCOT-HEART study, the comparator group was primarily assessed by stress ECG, while in the DISCHARGE study, the comparator group was primary assessed by ICA. In the PROMISE trial, the composite end point of death, myocardial infarction, hospitalization for unstable angina, or major procedural complication was similar when the strategy of initial CTA was compared to functional testing with imaging (exercise ECG, nuclear stress testing, or echocardiography).⁵ Thus, clinical assessment is still needed when clinicians are selecting the appropriate diagnostic test for patients with suspected CAD. The most recent guidelines give similar recommendations for CTA compared to stress imaging.⁹ Whether further improvement in CTA acquisition or the addition of CT fractional flow reserve can further improve outcomes requires additional study.

Applications for Clinical Practice and System Implementation

In patients with stable chest pain and intermediate pretest probability of CAD, CTA is useful in diagnosis compared to stress ECG and in reducing utilization of low-yield ICA. Whether CTA is more useful compared to the other noninvasive stress imaging modalities in this population requires further study.

Practice Points

• In patients with stable chest pain and intermediate pretest probability of CAD, CTA is useful compared to stress ECG.
• Use of CTA can potentially reduce the use of low-yield coronary angiography.

–Thai Nguyen, MD, Albert Chan, MD, Taishi Hirai, MD
University of Missouri, Columbia, MO

Study 1 Overview (SCOT-HEART Investigators)

Objective: To assess cardiovascular mortality and nonfatal myocardial infarction at 5 years in patients with stable chest pain referred to cardiology clinic for management with either standard care plus computed tomography angiography (CTA) or standard care alone.

Design: Multicenter, randomized, open-label prospective study.

Setting and participants: A total of 4146 patients with stable chest pain were randomized to standard care or standard care plus CTA at 12 centers across Scotland and were followed for 5 years.

Main outcome measures: The primary end point was a composite of death from coronary heart disease or nonfatal myocardial infarction. Main secondary end points were nonfatal myocardial infarction, nonfatal stroke, and frequency of invasive coronary angiography (ICA) and coronary revascularization with percutaneous coronary intervention or coronary artery bypass grafting.

Main results: The primary outcome including the composite of cardiovascular death or nonfatal myocardial infarction was lower in the CTA group than in the standard-care group at 2.3% (48 of 2073 patients) vs 3.9% (81 of 2073 patients), respectively (hazard ratio, 0.59; 95% CI, 0.41-0.84; P = .004). Although there was a higher rate of ICA and coronary revascularization in the CTA group than in the standard-care group in the first few months of follow-up, the overall rates were similar at 5 years, with ICA performed in 491 patients and 502 patients in the CTA vs standard-care groups, respectively (hazard ratio, 1.00; 95% CI, 0.88-1.13). Similarly, coronary revascularization was performed in 279 patients in the CTA group and in 267 patients in the standard-care group (hazard ratio, 1.07; 95% CI, 0.91-1.27). There were, however, more preventive therapies initiated in patients in the CTA group than in the standard-care group (odds ratio, 1.40; 95% CI, 1.19-1.65).

Conclusion: In patients with stable chest pain, the use of CTA in addition to standard care resulted in a significantly lower rate of death from coronary heart disease or nonfatal myocardial infarction at 5 years; the main contributor to this outcome was a reduced nonfatal myocardial infarction rate. There was no difference in the rate of coronary angiography or coronary revascularization between the 2 groups at 5 years.

Study 2 Overview (DISCHARGE Trial Group)

Objective: To compare the effectiveness of computed tomography (CT) with ICA as a diagnostic tool in patients with stable chest pain and intermediate pretest probability of coronary artery disease (CAD).

Design: Multicenter, randomized, assessor-blinded pragmatic prospective study.

Setting and participants: A total of 3667 patients with stable chest pain and intermediate pretest probability of CAD were enrolled at 26 centers and randomized into CT or ICA groups. Only 3561 patients were included in the modified intention-to-treat analysis, with 1808 patients and 1753 patients in the CT and ICA groups, respectively.

Main outcome measures: The primary outcome was a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke over 3.5 years. The main secondary outcomes were major procedure-related complications and patient-reported angina pectoris during the last 4 weeks of follow up.

Main results: The primary outcome occurred in 38 of 1808 patients (2.1%) in the CT group and in 52 of 1753 patients (3.0%) in the ICA group (hazard ratio, 0.70; 95% CI, 0.46-1.07; P = .10). The secondary outcomes showed that major procedure-related complications occurred in 9 patients (0.5%) in the CT group and in 33 patients (1.9%) in the ICA group (hazard ratio, 0.26; 95% CI, 0.13-0.55). Rates of patient-reported angina in the final 4 weeks of follow-up were 8.8% in the CT group and 7.5% in the ICA group (odds ratio, 1.17; 95% CI, 0.92-1.48).

Conclusion: Risk of major adverse cardiovascular events from the primary outcome were similar in both the CT and ICA groups among patients with stable chest pain and intermediate pretest probability of CAD. Patients referred for CT had a lower rate of coronary angiography leading to fewer major procedure-related complications in these patients than in those referred for ICA.

Evaluation and treatment of obstructive atherosclerosis is an important part of clinical care in patients presenting with angina symptoms.¹ Thus, the initial investigation for patients with suspected obstructive CAD includes ruling out acute coronary syndrome and assessing quality of life.¹ The diagnostic test should be tailored to the pretest probability for the diagnosis of obstructive CAD.²

In the United States, stress testing traditionally has been used for the initial assessment in patients with suspected CAD,³ but recently CTA has been utilized more frequently for this purpose. Compared to a stress test, which often helps identify and assess ischemia, CTA can provide anatomical assessment, with higher sensitivity to identify CAD.⁴ Furthermore, it can distinguish nonobstructive plaques that can be challenging to identify with stress test alone.

Whether CTA is superior to stress testing as the initial assessment for CAD has been debated. The randomized PROMISE trial compared patients with stable angina who underwent functional stress testing or CTA as an initial strategy.⁵ They reported a similar outcome between the 2 groups at a median follow-up of 2 years. However, in the original SCOT-HEART trial (CT coronary angiography in patients with suspected angina due to coronary heart disease), which was published in the same year as the PROMISE trial, the patients who underwent initial assessment with CTA had a numerically lower composite end point of cardiac death and myocardial infarction at a median follow-up of 1.7 years (1.3% vs 2.0%, P = .053).⁶

Given this result, the SCOT-HEART investigators extended the follow-up to evaluate the composite end point of death from coronary heart disease or nonfatal myocardial infarction at 5 years.⁷ This trial enrolled patients who were initially referred to a cardiology clinic for evaluation of chest pain, and they were randomized to standard care plus CTA or standard care alone. At a median duration of 4.8 years, the primary outcome was lower in the CTA group (2.3%, 48 patients) than in the standard-care group (3.9%, 81 patients) (hazard ratio, 0.58; 95% CI, 0.41-0.84; P = .004). Both groups had similar rates of invasive coronary angiography and had similar coronary revascularization rates.

It is hypothesized that this lower rate of nonfatal myocardial infarction in patients with CTA plus standard care is associated with a higher rate of preventive therapies initiated in patients in the CTA-plus-standard-care group compared to standard care alone. However, the difference in the standard-care group should be noted when compared to the PROMISE trial. In the PROMISE trial, the comparator group had predominantly stress imaging (either nuclear stress test or echocardiography), while in the SCOT-HEART trial, the group had predominantly stress electrocardiogram (ECG), and only 10% of the patients underwent stress imaging. It is possible the difference seen in the rate of nonfatal myocardial infarction was due to suboptimal diagnosis of CAD with stress ECG, which has lower sensitivity compared to stress imaging.

The DISCHARGE trial investigated the effectiveness of CTA vs ICA as the initial diagnostic test in the management of patients with stable chest pain and an intermediate pretest probability of obstructive CAD.⁸ At 3.5 years of follow-up, the primary composite of cardiovascular death, myocardial infarction, or stroke was similar in both groups (2.1% vs 3.0; hazard ratio, 0.70; 95% CI, 0.46-1.07; P = .10). Importantly, as fewer patients underwent ICA, the risk of procedure-related complication was lower in the CTA group than in the ICA group. However, it is important to note that only 25% of the patients diagnosed with obstructive CAD had greater than 50% vessel stenosis, which raises the question of whether an initial invasive strategy is appropriate for this population.

The strengths of these 2 studies include the large number of patients enrolled along with adequate follow-up, 5 years in the SCOT-HEART trial and 3.5 years in the DISCHARGE trial. The 2 studies overall suggest the usefulness of CTA for assessment of CAD. However, the control groups were very different in these 2 trials. In the SCOT-HEART study, the comparator group was primarily assessed by stress ECG, while in the DISCHARGE study, the comparator group was primary assessed by ICA. In the PROMISE trial, the composite end point of death, myocardial infarction, hospitalization for unstable angina, or major procedural complication was similar when the strategy of initial CTA was compared to functional testing with imaging (exercise ECG, nuclear stress testing, or echocardiography).⁵ Thus, clinical assessment is still needed when clinicians are selecting the appropriate diagnostic test for patients with suspected CAD. The most recent guidelines give similar recommendations for CTA compared to stress imaging.⁹ Whether further improvement in CTA acquisition or the addition of CT fractional flow reserve can further improve outcomes requires additional study.

Applications for Clinical Practice and System Implementation

In patients with stable chest pain and intermediate pretest probability of CAD, CTA is useful in diagnosis compared to stress ECG and in reducing utilization of low-yield ICA. Whether CTA is more useful compared to the other noninvasive stress imaging modalities in this population requires further study.

Practice Points

• In patients with stable chest pain and intermediate pretest probability of CAD, CTA is useful compared to stress ECG.
• Use of CTA can potentially reduce the use of low-yield coronary angiography.

–Thai Nguyen, MD, Albert Chan, MD, Taishi Hirai, MD
University of Missouri, Columbia, MO

A federal sting operation led to the recent conviction of a Texas physician assistant on charges of illegally prescribing a total of $3 million in drugs to patients at two “pill mill” clinics in Houston and helping others do the same.

The May 20 conviction of Charles Thompson, 76, of Houston, was based on charges of distributing more than 1.2 million opioid pills to thousands of individuals posing as patients at two pain management clinics, according to the U.S. Department of Justice.

Thompson’s conviction was the latest legal action in a string of cases involving the operation, including a doctor convicted in March who worked with Thompson at the West Parker Medical Clinic. Internist James Pierre, MD, 52, faces charges of unlawfully prescribing more than $1 million worth of opioid hydrocodone, according to federal officials.

Thompson also worked at Priority Wellness Clinic. Six people have pled guilty in connection with their conduct at West Parker or Priority Wellness, the justice department reported.

From June 2015 through July 2016, while Thompson was at West Parker, he helped Dr. Pierre unlawfully prescribe hydrocodone and the muscle relaxant carisoprodol, a combination of controlled substances for pain management known as the “Las Vegas cocktail,” to people in the sting operations pretending to be patients, authorities stated.

Thompson also distributed unlawful prescriptions for carisoprodol. So-called “runners” brought numerous people to pose as patients at West Parker and paid the clinic about $220 to $500 in cash for each visit that resulted in prescriptions for dangerous drugs. Throughout the scheme, West Parker pocketed about $1.75 million from prescriptions; Thompson was paid more than $208,000.

According to authorities, Thompson also helped others illegally prescribe controlled substances, including hydrocodone and oxycodone, from May to July 2017 at Priority Wellness, which opened in December 2016 after West Parker closed.

Priority Wellness reportedly operated as a pill mill similar to West Parker’s. Runners brought people posing as patients to Priority Wellness and paid the clinic between $300 and $600. The cost depended on whether the purported patient received a prescription for hydrocodone or oxycodone, almost always prescribed in combination with carisoprodol, authorities said. Throughout the scheme, Priority Wellness made about $1.1 million, and Thompson made between $700 and $900 a day.

He was convicted of one count of conspiracy to unlawfully distribute and dispense controlled substances and seven counts of unlawfully distributing and dispensing controlled substances in connection with his conduct at West Parker. For his conduct at Priority Wellness, he was convicted of one count of conspiracy to unlawfully distribute and dispense controlled substances and one count of unlawfully distributing and dispensing controlled substances.

He faces up to 20 years in prison for each count of conviction with sentencing scheduled for Oct. 3.

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

A federal sting operation led to the recent conviction of a Texas physician assistant on charges of illegally prescribing a total of $3 million in drugs to patients at two “pill mill” clinics in Houston and helping others do the same.

The May 20 conviction of Charles Thompson, 76, of Houston, was based on charges of distributing more than 1.2 million opioid pills to thousands of individuals posing as patients at two pain management clinics, according to the U.S. Department of Justice.

Thompson’s conviction was the latest legal action in a string of cases involving the operation, including a doctor convicted in March who worked with Thompson at the West Parker Medical Clinic. Internist James Pierre, MD, 52, faces charges of unlawfully prescribing more than $1 million worth of opioid hydrocodone, according to federal officials.

Thompson also worked at Priority Wellness Clinic. Six people have pled guilty in connection with their conduct at West Parker or Priority Wellness, the justice department reported.

From June 2015 through July 2016, while Thompson was at West Parker, he helped Dr. Pierre unlawfully prescribe hydrocodone and the muscle relaxant carisoprodol, a combination of controlled substances for pain management known as the “Las Vegas cocktail,” to people in the sting operations pretending to be patients, authorities stated.

Thompson also distributed unlawful prescriptions for carisoprodol. So-called “runners” brought numerous people to pose as patients at West Parker and paid the clinic about $220 to $500 in cash for each visit that resulted in prescriptions for dangerous drugs. Throughout the scheme, West Parker pocketed about $1.75 million from prescriptions; Thompson was paid more than $208,000.

According to authorities, Thompson also helped others illegally prescribe controlled substances, including hydrocodone and oxycodone, from May to July 2017 at Priority Wellness, which opened in December 2016 after West Parker closed.

Priority Wellness reportedly operated as a pill mill similar to West Parker’s. Runners brought people posing as patients to Priority Wellness and paid the clinic between $300 and $600. The cost depended on whether the purported patient received a prescription for hydrocodone or oxycodone, almost always prescribed in combination with carisoprodol, authorities said. Throughout the scheme, Priority Wellness made about $1.1 million, and Thompson made between $700 and $900 a day.

He was convicted of one count of conspiracy to unlawfully distribute and dispense controlled substances and seven counts of unlawfully distributing and dispensing controlled substances in connection with his conduct at West Parker. For his conduct at Priority Wellness, he was convicted of one count of conspiracy to unlawfully distribute and dispense controlled substances and one count of unlawfully distributing and dispensing controlled substances.

He faces up to 20 years in prison for each count of conviction with sentencing scheduled for Oct. 3.

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

A federal sting operation led to the recent conviction of a Texas physician assistant on charges of illegally prescribing a total of $3 million in drugs to patients at two “pill mill” clinics in Houston and helping others do the same.

The May 20 conviction of Charles Thompson, 76, of Houston, was based on charges of distributing more than 1.2 million opioid pills to thousands of individuals posing as patients at two pain management clinics, according to the U.S. Department of Justice.

Thompson’s conviction was the latest legal action in a string of cases involving the operation, including a doctor convicted in March who worked with Thompson at the West Parker Medical Clinic. Internist James Pierre, MD, 52, faces charges of unlawfully prescribing more than $1 million worth of opioid hydrocodone, according to federal officials.

Thompson also worked at Priority Wellness Clinic. Six people have pled guilty in connection with their conduct at West Parker or Priority Wellness, the justice department reported.

From June 2015 through July 2016, while Thompson was at West Parker, he helped Dr. Pierre unlawfully prescribe hydrocodone and the muscle relaxant carisoprodol, a combination of controlled substances for pain management known as the “Las Vegas cocktail,” to people in the sting operations pretending to be patients, authorities stated.

Thompson also distributed unlawful prescriptions for carisoprodol. So-called “runners” brought numerous people to pose as patients at West Parker and paid the clinic about $220 to $500 in cash for each visit that resulted in prescriptions for dangerous drugs. Throughout the scheme, West Parker pocketed about $1.75 million from prescriptions; Thompson was paid more than $208,000.

According to authorities, Thompson also helped others illegally prescribe controlled substances, including hydrocodone and oxycodone, from May to July 2017 at Priority Wellness, which opened in December 2016 after West Parker closed.

Priority Wellness reportedly operated as a pill mill similar to West Parker’s. Runners brought people posing as patients to Priority Wellness and paid the clinic between $300 and $600. The cost depended on whether the purported patient received a prescription for hydrocodone or oxycodone, almost always prescribed in combination with carisoprodol, authorities said. Throughout the scheme, Priority Wellness made about $1.1 million, and Thompson made between $700 and $900 a day.

He was convicted of one count of conspiracy to unlawfully distribute and dispense controlled substances and seven counts of unlawfully distributing and dispensing controlled substances in connection with his conduct at West Parker. For his conduct at Priority Wellness, he was convicted of one count of conspiracy to unlawfully distribute and dispense controlled substances and one count of unlawfully distributing and dispensing controlled substances.

He faces up to 20 years in prison for each count of conviction with sentencing scheduled for Oct. 3.

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

An opioid-centered curriculum for medical students improves awareness of pain management and treatment of opioid use disorder (OUD) and may help mitigate the current opioid crisis in the United States, new research suggests.

“Our study showed that implementing training for medical students about opioid use disorder and its treatment improves knowledge and understanding of clinical principles and may better prepare students to treat patients with this disorder,” study investigator Kimberly Hu, MD, psychiatry resident, Ohio State University, Columbus, told this news organization.

The findings were presented at the annual meeting of the American Psychiatric Association.

The U.S. opioid epidemic claims thousands of lives every year, and there’s evidence it’s getting worse, said Dr. Hu. U.S. data from December 2020 to December 2021 show opioid-related deaths increased by almost 15%.

In 2019, about 70% of the nearly 71,000 drug overdose deaths in the United States involved opioids and now it exceeds 100,000 per year, said Dr. Hu. She noted 80% of heroin users report their addiction started with prescription opioids, data that she described as “pretty staggering.”

Although treatments such as buprenorphine are available for OUD, “insufficient access to medications for opioid use disorder remains a significant barrier for patients,” said Dr. Hu.

“Training the next generation of physicians across all specialties is one way that we can work to improve access to care and improve the health and well-being of our patients.”

The study, which is ongoing, included 405 3rd-year medical students at Ohio State. Researchers provided these students with in-person or virtual (during the pandemic) training in buprenorphine prescribing and in-person clinical experience.

Dr. Hu and her colleagues tested the students before and after the intervention and estimated improvement in knowledge (score 0-23) and approach to clinical management principles (1-5).

The investigators found a statistically significant increase in overall knowledge (from a mean total score of 18.34 to 19.32; P < .001). There was also a statistically significant increase in self-reported understanding of clinical management principles related to screening for and treating OUDs (from a mean of 3.12 to a mean of 4.02; P < .001).

An additional evaluation survey was completed by 162 students at the end of the program. About 83% of these students said they knew how to manage acute pain, 62% felt they knew how to manage chronic pain, and 77% agreed they knew how to screen a patient for OUD.

Dr. Hu noted 3rd-year medical students are a little over halfway through medical school, after which they will go into residency in various specialties. Providing them with this knowledge early on allows them to incorporate it as they continue their training, she said.

“If they are able to screen their patients in any specialty they eventually choose to go into, then they can help link these patients to resources early and make sure there aren’t patients who are slipping through the cracks.”
 

Worthwhile, important research

Howard Liu, MD, chair of the department of psychiatry at the University of Nebraska Medical Center, Omaha, and incoming chair of the APA’s Council on Communications, applauded the study.

The proposed curriculum, he said, instills confidence in students and teaches important lessons they can apply no matter what field they choose.

Dr. Liu, who moderated a press briefing highlighting the study, noted every state is affected differently by the opioid epidemic, but the shortage of appropriate treatments for OUD is nationwide.

Commenting on the study, addiction specialist Elie G. Aoun, MD, of the division of law, medicine, and psychiatry at Columbia University, New York, said this research is “very worthwhile and important.”

He noted that attitudes about addiction need to change. When he taught medical students about substance use disorders, he was struck by some of their negative beliefs about addiction. For example, considering addicts as “junkies” who are “taking resources away” from what they perceive as more deserving patients.

Addiction has been ignored in medicine for too long, added Dr. Aoun. He noted the requirement for addiction training for psychiatry residents is 2 months while they spend 4 months learning internal medicine. “That makes no sense,” he said.

“And now with the opioid epidemic, we’re faced with the consequences of dismissing addiction for such a long time.”

A lack of understanding about addiction, and the “very limited number” of experienced people treating addictions, has contributed to the “huge problem” experts now face in treating addictions, said Dr. Aoun.

“So you want to approach this problem from as many different angles as you can.”

He praised the study for presenting “a framework to ‘medicalize’ the addiction model” for students. This, he said, will help them build empathy and see those with a substance use disorder as no different from other patients with medical conditions.

A curriculum such as the one presented by Dr. Hu and colleagues may spur more medical students into the addiction field, he said. “It may make them more willing to treat patients with addiction using evidence-based medicine rather than dismissing them.”

The study was supported by the Substance Abuse and Mental Health Services Administration.

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

An opioid-centered curriculum for medical students improves awareness of pain management and treatment of opioid use disorder (OUD) and may help mitigate the current opioid crisis in the United States, new research suggests.

“Our study showed that implementing training for medical students about opioid use disorder and its treatment improves knowledge and understanding of clinical principles and may better prepare students to treat patients with this disorder,” study investigator Kimberly Hu, MD, psychiatry resident, Ohio State University, Columbus, told this news organization.

The findings were presented at the annual meeting of the American Psychiatric Association.

The U.S. opioid epidemic claims thousands of lives every year, and there’s evidence it’s getting worse, said Dr. Hu. U.S. data from December 2020 to December 2021 show opioid-related deaths increased by almost 15%.

In 2019, about 70% of the nearly 71,000 drug overdose deaths in the United States involved opioids and now it exceeds 100,000 per year, said Dr. Hu. She noted 80% of heroin users report their addiction started with prescription opioids, data that she described as “pretty staggering.”

Although treatments such as buprenorphine are available for OUD, “insufficient access to medications for opioid use disorder remains a significant barrier for patients,” said Dr. Hu.

“Training the next generation of physicians across all specialties is one way that we can work to improve access to care and improve the health and well-being of our patients.”

The study, which is ongoing, included 405 3rd-year medical students at Ohio State. Researchers provided these students with in-person or virtual (during the pandemic) training in buprenorphine prescribing and in-person clinical experience.

Dr. Hu and her colleagues tested the students before and after the intervention and estimated improvement in knowledge (score 0-23) and approach to clinical management principles (1-5).

The investigators found a statistically significant increase in overall knowledge (from a mean total score of 18.34 to 19.32; P < .001). There was also a statistically significant increase in self-reported understanding of clinical management principles related to screening for and treating OUDs (from a mean of 3.12 to a mean of 4.02; P < .001).

An additional evaluation survey was completed by 162 students at the end of the program. About 83% of these students said they knew how to manage acute pain, 62% felt they knew how to manage chronic pain, and 77% agreed they knew how to screen a patient for OUD.

Dr. Hu noted 3rd-year medical students are a little over halfway through medical school, after which they will go into residency in various specialties. Providing them with this knowledge early on allows them to incorporate it as they continue their training, she said.

“If they are able to screen their patients in any specialty they eventually choose to go into, then they can help link these patients to resources early and make sure there aren’t patients who are slipping through the cracks.”
 

Worthwhile, important research

Howard Liu, MD, chair of the department of psychiatry at the University of Nebraska Medical Center, Omaha, and incoming chair of the APA’s Council on Communications, applauded the study.

The proposed curriculum, he said, instills confidence in students and teaches important lessons they can apply no matter what field they choose.

Dr. Liu, who moderated a press briefing highlighting the study, noted every state is affected differently by the opioid epidemic, but the shortage of appropriate treatments for OUD is nationwide.

Commenting on the study, addiction specialist Elie G. Aoun, MD, of the division of law, medicine, and psychiatry at Columbia University, New York, said this research is “very worthwhile and important.”

He noted that attitudes about addiction need to change. When he taught medical students about substance use disorders, he was struck by some of their negative beliefs about addiction. For example, considering addicts as “junkies” who are “taking resources away” from what they perceive as more deserving patients.

Addiction has been ignored in medicine for too long, added Dr. Aoun. He noted the requirement for addiction training for psychiatry residents is 2 months while they spend 4 months learning internal medicine. “That makes no sense,” he said.

“And now with the opioid epidemic, we’re faced with the consequences of dismissing addiction for such a long time.”

A lack of understanding about addiction, and the “very limited number” of experienced people treating addictions, has contributed to the “huge problem” experts now face in treating addictions, said Dr. Aoun.

“So you want to approach this problem from as many different angles as you can.”

He praised the study for presenting “a framework to ‘medicalize’ the addiction model” for students. This, he said, will help them build empathy and see those with a substance use disorder as no different from other patients with medical conditions.

A curriculum such as the one presented by Dr. Hu and colleagues may spur more medical students into the addiction field, he said. “It may make them more willing to treat patients with addiction using evidence-based medicine rather than dismissing them.”

The study was supported by the Substance Abuse and Mental Health Services Administration.

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

An opioid-centered curriculum for medical students improves awareness of pain management and treatment of opioid use disorder (OUD) and may help mitigate the current opioid crisis in the United States, new research suggests.

“Our study showed that implementing training for medical students about opioid use disorder and its treatment improves knowledge and understanding of clinical principles and may better prepare students to treat patients with this disorder,” study investigator Kimberly Hu, MD, psychiatry resident, Ohio State University, Columbus, told this news organization.

The findings were presented at the annual meeting of the American Psychiatric Association.

The U.S. opioid epidemic claims thousands of lives every year, and there’s evidence it’s getting worse, said Dr. Hu. U.S. data from December 2020 to December 2021 show opioid-related deaths increased by almost 15%.

In 2019, about 70% of the nearly 71,000 drug overdose deaths in the United States involved opioids and now it exceeds 100,000 per year, said Dr. Hu. She noted 80% of heroin users report their addiction started with prescription opioids, data that she described as “pretty staggering.”

Although treatments such as buprenorphine are available for OUD, “insufficient access to medications for opioid use disorder remains a significant barrier for patients,” said Dr. Hu.

“Training the next generation of physicians across all specialties is one way that we can work to improve access to care and improve the health and well-being of our patients.”

The study, which is ongoing, included 405 3rd-year medical students at Ohio State. Researchers provided these students with in-person or virtual (during the pandemic) training in buprenorphine prescribing and in-person clinical experience.

Dr. Hu and her colleagues tested the students before and after the intervention and estimated improvement in knowledge (score 0-23) and approach to clinical management principles (1-5).

The investigators found a statistically significant increase in overall knowledge (from a mean total score of 18.34 to 19.32; P < .001). There was also a statistically significant increase in self-reported understanding of clinical management principles related to screening for and treating OUDs (from a mean of 3.12 to a mean of 4.02; P < .001).

An additional evaluation survey was completed by 162 students at the end of the program. About 83% of these students said they knew how to manage acute pain, 62% felt they knew how to manage chronic pain, and 77% agreed they knew how to screen a patient for OUD.

Dr. Hu noted 3rd-year medical students are a little over halfway through medical school, after which they will go into residency in various specialties. Providing them with this knowledge early on allows them to incorporate it as they continue their training, she said.

“If they are able to screen their patients in any specialty they eventually choose to go into, then they can help link these patients to resources early and make sure there aren’t patients who are slipping through the cracks.”
 

Worthwhile, important research

Howard Liu, MD, chair of the department of psychiatry at the University of Nebraska Medical Center, Omaha, and incoming chair of the APA’s Council on Communications, applauded the study.

The proposed curriculum, he said, instills confidence in students and teaches important lessons they can apply no matter what field they choose.

Dr. Liu, who moderated a press briefing highlighting the study, noted every state is affected differently by the opioid epidemic, but the shortage of appropriate treatments for OUD is nationwide.

Commenting on the study, addiction specialist Elie G. Aoun, MD, of the division of law, medicine, and psychiatry at Columbia University, New York, said this research is “very worthwhile and important.”

He noted that attitudes about addiction need to change. When he taught medical students about substance use disorders, he was struck by some of their negative beliefs about addiction. For example, considering addicts as “junkies” who are “taking resources away” from what they perceive as more deserving patients.

Addiction has been ignored in medicine for too long, added Dr. Aoun. He noted the requirement for addiction training for psychiatry residents is 2 months while they spend 4 months learning internal medicine. “That makes no sense,” he said.

“And now with the opioid epidemic, we’re faced with the consequences of dismissing addiction for such a long time.”

A lack of understanding about addiction, and the “very limited number” of experienced people treating addictions, has contributed to the “huge problem” experts now face in treating addictions, said Dr. Aoun.

“So you want to approach this problem from as many different angles as you can.”

He praised the study for presenting “a framework to ‘medicalize’ the addiction model” for students. This, he said, will help them build empathy and see those with a substance use disorder as no different from other patients with medical conditions.

A curriculum such as the one presented by Dr. Hu and colleagues may spur more medical students into the addiction field, he said. “It may make them more willing to treat patients with addiction using evidence-based medicine rather than dismissing them.”

The study was supported by the Substance Abuse and Mental Health Services Administration.

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

An injection of bupivacaine following Mohs micrographic surgery procedures that have notable postsurgical pain significantly reduces pain scores and, importantly, use of postsurgical narcotics, a randomized trial shows.

“Single-dose, in-office bupivacaine administration immediately following reconstructions known to be high risk for pain reduces postoperative narcotic use and acute pain during the time period when our patients have the highest levels of pain,” said first author Vanessa B. Voss, MD, of the University of Missouri–Columbia, who presented the findings at the annual meeting of the American College of Mohs Surgery.

Dr. Vanessa Voss

“It was well tolerated, there were no adverse effects, and we recommend the consideration of using this in Mohs micrographic surgery reconstructions that are at the highest risk for pain,” she said.

Recent research has shown that Mohs micrographic surgeons have the highest rates of opioid prescribing of all dermatologists, with about 11% of patients undergoing a Mohs procedure prescribed the drugs for postoperative use, Dr. Voss explained.

Yet, with the ongoing opioid epidemic and even short courses of postoperative opioids placing patients at risk for addiction, the pressure is on to find alternative, nonaddictive strategies for the treatment of acute postoperative pain.

Bupivacaine is commonly used intraoperatively with other types of surgeries to reduce postoperative pain, with a favorable duration of action lasting up to 7 hours, compared with just 2-3 hours with lidocaine. And while its use in Mohs surgery is typically also intraoperative, along with lidocaine, the unique postoperative treatment approach in Mohs surgery has not been well studied, Dr. Voss noted.

To investigate, Dr. Voss and colleagues conducted the prospective, multicenter randomized trial, enrolling 174 patients undergoing Mohs micrographic surgery for skin cancer.

Patients were receiving complex flap reconstructions that have been specifically designated in an American Academy of Dermatology position statement to be high risk for pain following Mohs surgeries, and hence, more likely to involve prescriptions for opioids. These include reconstruction flaps of the scalp, ear, nose or lip, a wedge repair of the ear or lip, or a Mustarde cheek rotation flap.

The mean age of the patients was about 69 years, and about 65% were male. The two groups had no significant differences in demographics, tumor types, or repairs. They were randomized to receive either local injections of bupivacaine 0.5% (with no epinephrine) or placebo with sterile saline injection immediately following the procedure, with the total amount of injection standardized and dependent upon the flap surface area, ranging from 2.5 to 5 cm³.

For postoperative pain, all patients were prescribed acetaminophen 1,000 mg alternating with ibuprofen 400 mg, and tramadol, with instructions to only use tramadol as needed for breakthrough pain.

The reported use of narcotic analgesics by participants was significantly higher among those receiving placebo versus bupivacaine in the first 24 hours following surgery (odds ratio, 2.18; P = .03), as well as in the second 24 hours (OR, 2.18; P = .08) and at 48 hours combined (OR, 2.58; P < .01).

Those in the bupivacaine group also reported lower average pain scores, on a scale of 0-10, during the first 8-hour interval (mean difference, 1.6; P < .001). Importantly, overall, reports of pain medication use and the percentage of patients reporting pain under control were similar between groups, despite lower opioid use in the bupivacaine group.

“The percentage of patients reporting their pain to be under control was similar at all time intervals in both groups, so this means the bupivacaine group had their pain well-controlled despite fewer narcotics, with significant reductions in opioid use,” Dr. Voss noted.

Bupivacaine, though generally regarded as safe, has a reputation for being the most cardiotoxic of the local anesthetic agents; however, there were no such side effects reported in the study. Dr. Voss said the likely explanation is the use of low doses.

“In our study, we had no cardiotoxic effects when using up to 5 cc of 0.5%, which equates to 25 mg per patient,” she explained. This is considered a “very low dose,” since the maximum in the Food and Drug Administration pamphlet for local infiltration is 175 mg per patient every 3 hours, “yet is sufficient for reducing pain/narcotic use.”

She added that “surgeons must be careful to avoid accidental intravascular injection, which could increase risks of systemic toxicity, but this is very rare in the reconstruction settings described.”

Overall, the study suggests a potentially beneficial and unique nonopioid approach that is currently lacking for Mohs procedures associated with a high level of pain. “These findings offer a very effective intervention to reduce postoperative opioid use in this subset of patients,” Dr. Voss told this news organization. “There is not any other intervention that I am aware of to address this, although further study into other long-acting anesthetics may demonstrate similar effects.”

Dr. Justin J. Leitenberger

Commenting on the study, Justin J. Leitenberger, MD, session moderator, said that these “data could be impactful for reducing pain as well as the need for opioid medication after dermatologic surgery, both of which would be significant for our patients and public health outcomes.”

Among the challenges in treating pain following Mohs surgeries is that “every patient has a different pain threshold and expectation after surgery,” said Dr. Leitenberger, assistant professor of medicine and dermatology and codirector of dermatologic surgery, Mohs micrographic surgery, and laser and cosmetic surgery at Oregon Health & Science University, Portland.

“Patients undergoing larger repairs in tense areas of skin can experience increased pain and require prescription pain medication,” he said. “Bupivacaine, in this study, shows promise to provide longer lasting pain control from the surgical appointment and easier bridging to nonopioid pain control.”

Regarding the potential cardiotoxicities associated with the drug, Dr. Leitenberger agreed that the risks are low, and added that many surgeons have, in fact, switched to full use of bupivacaine, as opposed to combination with lidocaine, apparently without problems. “This is a small dose locally to the area after a procedure and I agree that the risks are minuscule,” he said.

“Of note, during national lidocaine shortages over the past few years, many practices transitioned to exclusive use of bupivacaine for the entire Mohs procedure, and [anecdotally], this transition did not result in toxicities that were reported,” Dr. Leitenberger said.

GW Medical Faculty Associates

Commenting further, Vishal Patel, MD, assistant professor of dermatology and hematology/oncology at George Washington University and director of cutaneous oncology at the GW Cancer Center, both in Washington, also agreed that the benefits appear important. “The benefit from using bupivacaine is encouraging on multiple levels,” he said in an interview.

“Given all that we know about opioids and their negative side effect profile as well as their limited help in cutaneous surgery pain control, the use of long-acting anesthetics is an innovative and reasonable approach to provide pain control in the immediate postoperative window when patients tend to have the most pain,” said Dr. Patel, who is also director of dermatologic surgery at George Washington University.

“After this window, acetaminophen and ibuprofen, which have been shown when used in tandem in an alternating schedule to be superior to opioids, provides an effective pain regimen,” he said. “For larger and more pain-sensitive patients, this appears to be a promising combination.”

Dr. Voss, Dr. Leitenberger, and Dr. Patel have reported no relevant financial relationships.

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

An injection of bupivacaine following Mohs micrographic surgery procedures that have notable postsurgical pain significantly reduces pain scores and, importantly, use of postsurgical narcotics, a randomized trial shows.

“Single-dose, in-office bupivacaine administration immediately following reconstructions known to be high risk for pain reduces postoperative narcotic use and acute pain during the time period when our patients have the highest levels of pain,” said first author Vanessa B. Voss, MD, of the University of Missouri–Columbia, who presented the findings at the annual meeting of the American College of Mohs Surgery.

Dr. Vanessa Voss

“It was well tolerated, there were no adverse effects, and we recommend the consideration of using this in Mohs micrographic surgery reconstructions that are at the highest risk for pain,” she said.

Recent research has shown that Mohs micrographic surgeons have the highest rates of opioid prescribing of all dermatologists, with about 11% of patients undergoing a Mohs procedure prescribed the drugs for postoperative use, Dr. Voss explained.

Yet, with the ongoing opioid epidemic and even short courses of postoperative opioids placing patients at risk for addiction, the pressure is on to find alternative, nonaddictive strategies for the treatment of acute postoperative pain.

Bupivacaine is commonly used intraoperatively with other types of surgeries to reduce postoperative pain, with a favorable duration of action lasting up to 7 hours, compared with just 2-3 hours with lidocaine. And while its use in Mohs surgery is typically also intraoperative, along with lidocaine, the unique postoperative treatment approach in Mohs surgery has not been well studied, Dr. Voss noted.

To investigate, Dr. Voss and colleagues conducted the prospective, multicenter randomized trial, enrolling 174 patients undergoing Mohs micrographic surgery for skin cancer.

Patients were receiving complex flap reconstructions that have been specifically designated in an American Academy of Dermatology position statement to be high risk for pain following Mohs surgeries, and hence, more likely to involve prescriptions for opioids. These include reconstruction flaps of the scalp, ear, nose or lip, a wedge repair of the ear or lip, or a Mustarde cheek rotation flap.

The mean age of the patients was about 69 years, and about 65% were male. The two groups had no significant differences in demographics, tumor types, or repairs. They were randomized to receive either local injections of bupivacaine 0.5% (with no epinephrine) or placebo with sterile saline injection immediately following the procedure, with the total amount of injection standardized and dependent upon the flap surface area, ranging from 2.5 to 5 cm³.

For postoperative pain, all patients were prescribed acetaminophen 1,000 mg alternating with ibuprofen 400 mg, and tramadol, with instructions to only use tramadol as needed for breakthrough pain.

The reported use of narcotic analgesics by participants was significantly higher among those receiving placebo versus bupivacaine in the first 24 hours following surgery (odds ratio, 2.18; P = .03), as well as in the second 24 hours (OR, 2.18; P = .08) and at 48 hours combined (OR, 2.58; P < .01).

Those in the bupivacaine group also reported lower average pain scores, on a scale of 0-10, during the first 8-hour interval (mean difference, 1.6; P < .001). Importantly, overall, reports of pain medication use and the percentage of patients reporting pain under control were similar between groups, despite lower opioid use in the bupivacaine group.

“The percentage of patients reporting their pain to be under control was similar at all time intervals in both groups, so this means the bupivacaine group had their pain well-controlled despite fewer narcotics, with significant reductions in opioid use,” Dr. Voss noted.

Bupivacaine, though generally regarded as safe, has a reputation for being the most cardiotoxic of the local anesthetic agents; however, there were no such side effects reported in the study. Dr. Voss said the likely explanation is the use of low doses.

“In our study, we had no cardiotoxic effects when using up to 5 cc of 0.5%, which equates to 25 mg per patient,” she explained. This is considered a “very low dose,” since the maximum in the Food and Drug Administration pamphlet for local infiltration is 175 mg per patient every 3 hours, “yet is sufficient for reducing pain/narcotic use.”

She added that “surgeons must be careful to avoid accidental intravascular injection, which could increase risks of systemic toxicity, but this is very rare in the reconstruction settings described.”

Overall, the study suggests a potentially beneficial and unique nonopioid approach that is currently lacking for Mohs procedures associated with a high level of pain. “These findings offer a very effective intervention to reduce postoperative opioid use in this subset of patients,” Dr. Voss told this news organization. “There is not any other intervention that I am aware of to address this, although further study into other long-acting anesthetics may demonstrate similar effects.”

Dr. Justin J. Leitenberger

Commenting on the study, Justin J. Leitenberger, MD, session moderator, said that these “data could be impactful for reducing pain as well as the need for opioid medication after dermatologic surgery, both of which would be significant for our patients and public health outcomes.”

Among the challenges in treating pain following Mohs surgeries is that “every patient has a different pain threshold and expectation after surgery,” said Dr. Leitenberger, assistant professor of medicine and dermatology and codirector of dermatologic surgery, Mohs micrographic surgery, and laser and cosmetic surgery at Oregon Health & Science University, Portland.

“Patients undergoing larger repairs in tense areas of skin can experience increased pain and require prescription pain medication,” he said. “Bupivacaine, in this study, shows promise to provide longer lasting pain control from the surgical appointment and easier bridging to nonopioid pain control.”

Regarding the potential cardiotoxicities associated with the drug, Dr. Leitenberger agreed that the risks are low, and added that many surgeons have, in fact, switched to full use of bupivacaine, as opposed to combination with lidocaine, apparently without problems. “This is a small dose locally to the area after a procedure and I agree that the risks are minuscule,” he said.

“Of note, during national lidocaine shortages over the past few years, many practices transitioned to exclusive use of bupivacaine for the entire Mohs procedure, and [anecdotally], this transition did not result in toxicities that were reported,” Dr. Leitenberger said.

GW Medical Faculty Associates

Commenting further, Vishal Patel, MD, assistant professor of dermatology and hematology/oncology at George Washington University and director of cutaneous oncology at the GW Cancer Center, both in Washington, also agreed that the benefits appear important. “The benefit from using bupivacaine is encouraging on multiple levels,” he said in an interview.

“Given all that we know about opioids and their negative side effect profile as well as their limited help in cutaneous surgery pain control, the use of long-acting anesthetics is an innovative and reasonable approach to provide pain control in the immediate postoperative window when patients tend to have the most pain,” said Dr. Patel, who is also director of dermatologic surgery at George Washington University.

“After this window, acetaminophen and ibuprofen, which have been shown when used in tandem in an alternating schedule to be superior to opioids, provides an effective pain regimen,” he said. “For larger and more pain-sensitive patients, this appears to be a promising combination.”

Dr. Voss, Dr. Leitenberger, and Dr. Patel have reported no relevant financial relationships.

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

An injection of bupivacaine following Mohs micrographic surgery procedures that have notable postsurgical pain significantly reduces pain scores and, importantly, use of postsurgical narcotics, a randomized trial shows.

“Single-dose, in-office bupivacaine administration immediately following reconstructions known to be high risk for pain reduces postoperative narcotic use and acute pain during the time period when our patients have the highest levels of pain,” said first author Vanessa B. Voss, MD, of the University of Missouri–Columbia, who presented the findings at the annual meeting of the American College of Mohs Surgery.

Dr. Vanessa Voss

“It was well tolerated, there were no adverse effects, and we recommend the consideration of using this in Mohs micrographic surgery reconstructions that are at the highest risk for pain,” she said.

Recent research has shown that Mohs micrographic surgeons have the highest rates of opioid prescribing of all dermatologists, with about 11% of patients undergoing a Mohs procedure prescribed the drugs for postoperative use, Dr. Voss explained.

Yet, with the ongoing opioid epidemic and even short courses of postoperative opioids placing patients at risk for addiction, the pressure is on to find alternative, nonaddictive strategies for the treatment of acute postoperative pain.

Bupivacaine is commonly used intraoperatively with other types of surgeries to reduce postoperative pain, with a favorable duration of action lasting up to 7 hours, compared with just 2-3 hours with lidocaine. And while its use in Mohs surgery is typically also intraoperative, along with lidocaine, the unique postoperative treatment approach in Mohs surgery has not been well studied, Dr. Voss noted.

To investigate, Dr. Voss and colleagues conducted the prospective, multicenter randomized trial, enrolling 174 patients undergoing Mohs micrographic surgery for skin cancer.

Patients were receiving complex flap reconstructions that have been specifically designated in an American Academy of Dermatology position statement to be high risk for pain following Mohs surgeries, and hence, more likely to involve prescriptions for opioids. These include reconstruction flaps of the scalp, ear, nose or lip, a wedge repair of the ear or lip, or a Mustarde cheek rotation flap.

The mean age of the patients was about 69 years, and about 65% were male. The two groups had no significant differences in demographics, tumor types, or repairs. They were randomized to receive either local injections of bupivacaine 0.5% (with no epinephrine) or placebo with sterile saline injection immediately following the procedure, with the total amount of injection standardized and dependent upon the flap surface area, ranging from 2.5 to 5 cm³.

For postoperative pain, all patients were prescribed acetaminophen 1,000 mg alternating with ibuprofen 400 mg, and tramadol, with instructions to only use tramadol as needed for breakthrough pain.

The reported use of narcotic analgesics by participants was significantly higher among those receiving placebo versus bupivacaine in the first 24 hours following surgery (odds ratio, 2.18; P = .03), as well as in the second 24 hours (OR, 2.18; P = .08) and at 48 hours combined (OR, 2.58; P < .01).

Those in the bupivacaine group also reported lower average pain scores, on a scale of 0-10, during the first 8-hour interval (mean difference, 1.6; P < .001). Importantly, overall, reports of pain medication use and the percentage of patients reporting pain under control were similar between groups, despite lower opioid use in the bupivacaine group.

“The percentage of patients reporting their pain to be under control was similar at all time intervals in both groups, so this means the bupivacaine group had their pain well-controlled despite fewer narcotics, with significant reductions in opioid use,” Dr. Voss noted.

Bupivacaine, though generally regarded as safe, has a reputation for being the most cardiotoxic of the local anesthetic agents; however, there were no such side effects reported in the study. Dr. Voss said the likely explanation is the use of low doses.

“In our study, we had no cardiotoxic effects when using up to 5 cc of 0.5%, which equates to 25 mg per patient,” she explained. This is considered a “very low dose,” since the maximum in the Food and Drug Administration pamphlet for local infiltration is 175 mg per patient every 3 hours, “yet is sufficient for reducing pain/narcotic use.”

She added that “surgeons must be careful to avoid accidental intravascular injection, which could increase risks of systemic toxicity, but this is very rare in the reconstruction settings described.”

Overall, the study suggests a potentially beneficial and unique nonopioid approach that is currently lacking for Mohs procedures associated with a high level of pain. “These findings offer a very effective intervention to reduce postoperative opioid use in this subset of patients,” Dr. Voss told this news organization. “There is not any other intervention that I am aware of to address this, although further study into other long-acting anesthetics may demonstrate similar effects.”

Dr. Justin J. Leitenberger

Commenting on the study, Justin J. Leitenberger, MD, session moderator, said that these “data could be impactful for reducing pain as well as the need for opioid medication after dermatologic surgery, both of which would be significant for our patients and public health outcomes.”

Among the challenges in treating pain following Mohs surgeries is that “every patient has a different pain threshold and expectation after surgery,” said Dr. Leitenberger, assistant professor of medicine and dermatology and codirector of dermatologic surgery, Mohs micrographic surgery, and laser and cosmetic surgery at Oregon Health & Science University, Portland.

“Patients undergoing larger repairs in tense areas of skin can experience increased pain and require prescription pain medication,” he said. “Bupivacaine, in this study, shows promise to provide longer lasting pain control from the surgical appointment and easier bridging to nonopioid pain control.”

Regarding the potential cardiotoxicities associated with the drug, Dr. Leitenberger agreed that the risks are low, and added that many surgeons have, in fact, switched to full use of bupivacaine, as opposed to combination with lidocaine, apparently without problems. “This is a small dose locally to the area after a procedure and I agree that the risks are minuscule,” he said.

“Of note, during national lidocaine shortages over the past few years, many practices transitioned to exclusive use of bupivacaine for the entire Mohs procedure, and [anecdotally], this transition did not result in toxicities that were reported,” Dr. Leitenberger said.

GW Medical Faculty Associates

Commenting further, Vishal Patel, MD, assistant professor of dermatology and hematology/oncology at George Washington University and director of cutaneous oncology at the GW Cancer Center, both in Washington, also agreed that the benefits appear important. “The benefit from using bupivacaine is encouraging on multiple levels,” he said in an interview.

“Given all that we know about opioids and their negative side effect profile as well as their limited help in cutaneous surgery pain control, the use of long-acting anesthetics is an innovative and reasonable approach to provide pain control in the immediate postoperative window when patients tend to have the most pain,” said Dr. Patel, who is also director of dermatologic surgery at George Washington University.

“After this window, acetaminophen and ibuprofen, which have been shown when used in tandem in an alternating schedule to be superior to opioids, provides an effective pain regimen,” he said. “For larger and more pain-sensitive patients, this appears to be a promising combination.”

Dr. Voss, Dr. Leitenberger, and Dr. Patel have reported no relevant financial relationships.

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

A new study questions the conventional wisdom of using steroids and anti-inflammatory drugs like ibuprofen to treat low back pain if exercise and other nondrug therapies don’t work right away.

Those medications offer relief from acute pain but may actually increase a person’s chances of developing chronic pain, said the investigators for a study published in Science Translational Medicine. The study results indicate that inflammation is a normal part of recovering from a painful injury and that inhibiting inflammation may result in more-difficult-to-treat chronic pain.

“For many decades it’s been standard medical practice to treat pain with anti-inflammatory drugs,” Jeffrey Mogil, PhD, a psychology professor at McGill University, Montreal, said in a school news release. “But we found that this short-term fix could lead to longer-term problems.”

Researchers looked at low back pain because it’s so common, with 25% of U.S. adults saying they had low back pain in the previous 3 months, according to the Centers for Disease Control and Prevention. Acute back pain is defined as lasting less than 4 weeks while chronic back pain lasts more than 12 weeks.

By examining blood samples, researchers discovered that people whose low back pain was resolved had high inflammation driven by neutrophils, a type of white blood cell that helps the body fight infection, the study said.

“Neutrophils dominate the early stages of inflammation and set the stage for repair of tissue damage. Inflammation occurs for a reason, and it looks like it’s dangerous to interfere with it,” Dr. Mogil said in the news release.

The research team found that blocking neutrophils in mice prolonged pain in the animals up to 10-fold. Pain also was prolonged when the mice were given anti-inflammatory drugs and steroids, the news release says.

McGill University said other studies support the findings. The school cited an analysis of 500,000 people in the United Kingdom. The analysis found that those taking anti-inflammatory drugs for pain were more likely to have pain 2 to 10 years later.

While saying the study suggests it’s time to reconsider how pain is treated, the researchers called for clinical trials on humans, not just observations of people with low back pain.

Experts warned about accepting the results without further investigation.

“It’s intriguing but requires further study,” Steven J. Atlas, MD, director of the Primary Care Research & Quality Improvement Network at Massachusetts General Hospital, Boston, told The New York Times.

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

A new study questions the conventional wisdom of using steroids and anti-inflammatory drugs like ibuprofen to treat low back pain if exercise and other nondrug therapies don’t work right away.

Those medications offer relief from acute pain but may actually increase a person’s chances of developing chronic pain, said the investigators for a study published in Science Translational Medicine. The study results indicate that inflammation is a normal part of recovering from a painful injury and that inhibiting inflammation may result in more-difficult-to-treat chronic pain.

“For many decades it’s been standard medical practice to treat pain with anti-inflammatory drugs,” Jeffrey Mogil, PhD, a psychology professor at McGill University, Montreal, said in a school news release. “But we found that this short-term fix could lead to longer-term problems.”

Researchers looked at low back pain because it’s so common, with 25% of U.S. adults saying they had low back pain in the previous 3 months, according to the Centers for Disease Control and Prevention. Acute back pain is defined as lasting less than 4 weeks while chronic back pain lasts more than 12 weeks.

By examining blood samples, researchers discovered that people whose low back pain was resolved had high inflammation driven by neutrophils, a type of white blood cell that helps the body fight infection, the study said.

“Neutrophils dominate the early stages of inflammation and set the stage for repair of tissue damage. Inflammation occurs for a reason, and it looks like it’s dangerous to interfere with it,” Dr. Mogil said in the news release.

The research team found that blocking neutrophils in mice prolonged pain in the animals up to 10-fold. Pain also was prolonged when the mice were given anti-inflammatory drugs and steroids, the news release says.

McGill University said other studies support the findings. The school cited an analysis of 500,000 people in the United Kingdom. The analysis found that those taking anti-inflammatory drugs for pain were more likely to have pain 2 to 10 years later.

While saying the study suggests it’s time to reconsider how pain is treated, the researchers called for clinical trials on humans, not just observations of people with low back pain.

Experts warned about accepting the results without further investigation.

“It’s intriguing but requires further study,” Steven J. Atlas, MD, director of the Primary Care Research & Quality Improvement Network at Massachusetts General Hospital, Boston, told The New York Times.

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

A new study questions the conventional wisdom of using steroids and anti-inflammatory drugs like ibuprofen to treat low back pain if exercise and other nondrug therapies don’t work right away.

Those medications offer relief from acute pain but may actually increase a person’s chances of developing chronic pain, said the investigators for a study published in Science Translational Medicine. The study results indicate that inflammation is a normal part of recovering from a painful injury and that inhibiting inflammation may result in more-difficult-to-treat chronic pain.

“For many decades it’s been standard medical practice to treat pain with anti-inflammatory drugs,” Jeffrey Mogil, PhD, a psychology professor at McGill University, Montreal, said in a school news release. “But we found that this short-term fix could lead to longer-term problems.”

Researchers looked at low back pain because it’s so common, with 25% of U.S. adults saying they had low back pain in the previous 3 months, according to the Centers for Disease Control and Prevention. Acute back pain is defined as lasting less than 4 weeks while chronic back pain lasts more than 12 weeks.

By examining blood samples, researchers discovered that people whose low back pain was resolved had high inflammation driven by neutrophils, a type of white blood cell that helps the body fight infection, the study said.

“Neutrophils dominate the early stages of inflammation and set the stage for repair of tissue damage. Inflammation occurs for a reason, and it looks like it’s dangerous to interfere with it,” Dr. Mogil said in the news release.

The research team found that blocking neutrophils in mice prolonged pain in the animals up to 10-fold. Pain also was prolonged when the mice were given anti-inflammatory drugs and steroids, the news release says.

McGill University said other studies support the findings. The school cited an analysis of 500,000 people in the United Kingdom. The analysis found that those taking anti-inflammatory drugs for pain were more likely to have pain 2 to 10 years later.

While saying the study suggests it’s time to reconsider how pain is treated, the researchers called for clinical trials on humans, not just observations of people with low back pain.

Experts warned about accepting the results without further investigation.

“It’s intriguing but requires further study,” Steven J. Atlas, MD, director of the Primary Care Research & Quality Improvement Network at Massachusetts General Hospital, Boston, told The New York Times.

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