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Is another COVID-19 booster really needed?

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Many countries around the globe are starting to roll out another booster of the COVID-19 vaccine but, with public interest waning and a sense of normalcy firmly installed in our minds, this may prove an ill-fated effort, unless authorities can provide a coherent answer to the question “Is another jab really needed?” (The short answer is a firm “yes,” of course.)

In what we could call the “chronic” phase of the pandemic, most countries have now settled for a certain number of daily cases and a (relatively low) number of complications and deaths. It’s the vaccines that have afforded us this peace of mind, lest we forget. But they are different to other vaccines that we are more familiar with, such as the MMR that we get as kids and then forget about for the rest of our lives. As good as the different COVID-19 vaccines are, they never came with the promise of generating lifelong antibodies. We knew early on that the immunity they provide slowly wanes with time. That doesn’t mean that those who have their vaccination records up to date (which included a booster probably earlier in 2022) are suddenly exposed. Data suggest that although people several months past their last booster would now be more prone to getting reinfected, the protection against severe disease still hangs around 85%. In other words, their chances of ending up in the hospital are low.

Why worry, then, about further boosting the immune system? The same studies show that an additional jab would increase this percentage up to 99%. Is this roughly 10% improvement really worth another worldwide vaccination campaign? Well, this is a numbers game, after all. The current form of the virus is extremely infectious, and the Northern Hemisphere is heading toward the cold months of the year, which we have seen in past years increases COVID-19 contagions, as you would expect from any airborne virus. Thus, it’s easy to expect a new peak in the number of cases, especially considering that we are not going to apply any of the usual restrictions to prevent this. In these conditions, extending the safety net to a further 10% of the population would substantially reduce the total number of victims. It seems like a good investment of resources.

We can be more surgical about it and direct this new vaccination campaign to the population most likely to end up in the hospital. People with concomitant pathologies are at the top of the list, but it’s also an age issue. On the basis of different studies of the most common ages of admission, the cutoff point for the booster varies from country to country, with the lowest being 50 and in other cases hovering around 65 years of age. Given the safety of these vaccines, if we can afford it, the wider we cast the net, the better, but at least we should make every effort to fully vaccinate the higher age brackets.

The final question is which vaccine to give. There are confounding studies about the importance of switching to Omicron-specific jabs, which are finally available. Although this seems like a good idea, since Omicron infections elicit a more effective range of antibodies and new variants seem to better escape our defenses, recent studies suggest that there actually may not be so much difference with the old formula.

The conclusion? Vaccinate the elderly (and some middle-aged too, if possible) and the frail as soon as possible with any version of the booster you have available, if you want to keep hospital pressure to the minimum and save a fair number of complications and deaths over the next months. This regimen of yearly boosters for some may be the scenario for the upcoming years, similar to what we already do for the flu, so we should get used to it.

Dr. Macip is associate professor, department of molecular and cellular biology, University of Leicester (England). He reported no relevant conflicts of interest.

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

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Many countries around the globe are starting to roll out another booster of the COVID-19 vaccine but, with public interest waning and a sense of normalcy firmly installed in our minds, this may prove an ill-fated effort, unless authorities can provide a coherent answer to the question “Is another jab really needed?” (The short answer is a firm “yes,” of course.)

In what we could call the “chronic” phase of the pandemic, most countries have now settled for a certain number of daily cases and a (relatively low) number of complications and deaths. It’s the vaccines that have afforded us this peace of mind, lest we forget. But they are different to other vaccines that we are more familiar with, such as the MMR that we get as kids and then forget about for the rest of our lives. As good as the different COVID-19 vaccines are, they never came with the promise of generating lifelong antibodies. We knew early on that the immunity they provide slowly wanes with time. That doesn’t mean that those who have their vaccination records up to date (which included a booster probably earlier in 2022) are suddenly exposed. Data suggest that although people several months past their last booster would now be more prone to getting reinfected, the protection against severe disease still hangs around 85%. In other words, their chances of ending up in the hospital are low.

Why worry, then, about further boosting the immune system? The same studies show that an additional jab would increase this percentage up to 99%. Is this roughly 10% improvement really worth another worldwide vaccination campaign? Well, this is a numbers game, after all. The current form of the virus is extremely infectious, and the Northern Hemisphere is heading toward the cold months of the year, which we have seen in past years increases COVID-19 contagions, as you would expect from any airborne virus. Thus, it’s easy to expect a new peak in the number of cases, especially considering that we are not going to apply any of the usual restrictions to prevent this. In these conditions, extending the safety net to a further 10% of the population would substantially reduce the total number of victims. It seems like a good investment of resources.

We can be more surgical about it and direct this new vaccination campaign to the population most likely to end up in the hospital. People with concomitant pathologies are at the top of the list, but it’s also an age issue. On the basis of different studies of the most common ages of admission, the cutoff point for the booster varies from country to country, with the lowest being 50 and in other cases hovering around 65 years of age. Given the safety of these vaccines, if we can afford it, the wider we cast the net, the better, but at least we should make every effort to fully vaccinate the higher age brackets.

The final question is which vaccine to give. There are confounding studies about the importance of switching to Omicron-specific jabs, which are finally available. Although this seems like a good idea, since Omicron infections elicit a more effective range of antibodies and new variants seem to better escape our defenses, recent studies suggest that there actually may not be so much difference with the old formula.

The conclusion? Vaccinate the elderly (and some middle-aged too, if possible) and the frail as soon as possible with any version of the booster you have available, if you want to keep hospital pressure to the minimum and save a fair number of complications and deaths over the next months. This regimen of yearly boosters for some may be the scenario for the upcoming years, similar to what we already do for the flu, so we should get used to it.

Dr. Macip is associate professor, department of molecular and cellular biology, University of Leicester (England). He reported no relevant conflicts of interest.

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

 

Many countries around the globe are starting to roll out another booster of the COVID-19 vaccine but, with public interest waning and a sense of normalcy firmly installed in our minds, this may prove an ill-fated effort, unless authorities can provide a coherent answer to the question “Is another jab really needed?” (The short answer is a firm “yes,” of course.)

In what we could call the “chronic” phase of the pandemic, most countries have now settled for a certain number of daily cases and a (relatively low) number of complications and deaths. It’s the vaccines that have afforded us this peace of mind, lest we forget. But they are different to other vaccines that we are more familiar with, such as the MMR that we get as kids and then forget about for the rest of our lives. As good as the different COVID-19 vaccines are, they never came with the promise of generating lifelong antibodies. We knew early on that the immunity they provide slowly wanes with time. That doesn’t mean that those who have their vaccination records up to date (which included a booster probably earlier in 2022) are suddenly exposed. Data suggest that although people several months past their last booster would now be more prone to getting reinfected, the protection against severe disease still hangs around 85%. In other words, their chances of ending up in the hospital are low.

Why worry, then, about further boosting the immune system? The same studies show that an additional jab would increase this percentage up to 99%. Is this roughly 10% improvement really worth another worldwide vaccination campaign? Well, this is a numbers game, after all. The current form of the virus is extremely infectious, and the Northern Hemisphere is heading toward the cold months of the year, which we have seen in past years increases COVID-19 contagions, as you would expect from any airborne virus. Thus, it’s easy to expect a new peak in the number of cases, especially considering that we are not going to apply any of the usual restrictions to prevent this. In these conditions, extending the safety net to a further 10% of the population would substantially reduce the total number of victims. It seems like a good investment of resources.

We can be more surgical about it and direct this new vaccination campaign to the population most likely to end up in the hospital. People with concomitant pathologies are at the top of the list, but it’s also an age issue. On the basis of different studies of the most common ages of admission, the cutoff point for the booster varies from country to country, with the lowest being 50 and in other cases hovering around 65 years of age. Given the safety of these vaccines, if we can afford it, the wider we cast the net, the better, but at least we should make every effort to fully vaccinate the higher age brackets.

The final question is which vaccine to give. There are confounding studies about the importance of switching to Omicron-specific jabs, which are finally available. Although this seems like a good idea, since Omicron infections elicit a more effective range of antibodies and new variants seem to better escape our defenses, recent studies suggest that there actually may not be so much difference with the old formula.

The conclusion? Vaccinate the elderly (and some middle-aged too, if possible) and the frail as soon as possible with any version of the booster you have available, if you want to keep hospital pressure to the minimum and save a fair number of complications and deaths over the next months. This regimen of yearly boosters for some may be the scenario for the upcoming years, similar to what we already do for the flu, so we should get used to it.

Dr. Macip is associate professor, department of molecular and cellular biology, University of Leicester (England). He reported no relevant conflicts of interest.

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

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Salt pills for patients with acute decompensated heart failure?

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Fri, 10/07/2022 - 08:23

 

Restriction of dietary salt to alleviate or prevent volume overload in patients with acute decompensated heart failure (ADHF) is common hospital practice, but without a solid evidence base. A trial testing whether taking salt pills might have benefits for patients with ADHF undergoing intensive diuresis, therefore, may seem a bit counterintuitive.

In just such a randomized, placebo-controlled trial, the approach made no difference to weight loss on diuresis, a proxy for volume reduction, or to serum creatinine levels in ADHF patients receiving high-dose intravenous diuretic therapy.

Georges Lievre / Fotolia.com

The patients consumed the extra salt during their intravenous therapy in the form of tablets providing 6 g sodium chloride daily on top of their hospital-provided, low-sodium meals.

During that time, serum sodium levels remained stable for the 34 patients assigned to the salt tablets but dropped significantly in the 31 given placebo pills.

They lost about the same weight, averages of 4 kg and 4.6 kg (8.8-10 lb), respectively, and their urine output was also similar. Patients who took the salt tablets showed less of an increase in blood urea nitrogen (BUN) at both 96 hours and at discharge.

The findings “challenge the routine practice of sodium chloride restriction in acute heart failure, something done thousands of times a day, millions of times a year,” Robert A. Montgomery, MD, Cleveland Clinic, said when presenting the study at the annual scientific meeting of the Heart Failure Society of America.

The trial, called OSPREY-AHF (Oral Sodium to Preserve Renal Efficiency in Acute Heart Failure), also may encourage a shift in ADHF management from a preoccupation with salt restriction to focus more on fighting fluid retention.

OSPREY-HF took on “an established practice that doesn’t have much high-quality evidentiary support,” one guided primarily by consensus and observational data, Montgomery said in an interview.

There are also potential downsides to dietary sodium restriction, including some that may complicate or block ADHF therapies.

“Low-sodium diets can be associated with decreased caloric intake and nutritional quality,” Dr. Montgomery observed. And observational studies suggest that “patients who are on a low sodium diet can develop increased neurohormonal activation. The kidney is not sensing salt, and so starts ramping up the hormones,” which promotes diuretic resistance.

But emerging evidence also suggests “that giving sodium chloride in the form of hypertonic saline can help patients who are diuretic resistant.” The intervention, which appears to attenuate the neurohormonal activation associated with high-dose intravenous diuretics, Dr. Montgomery noted, helped inspire the design of OSPREY-AHF.

Edema consists of “a gallon of water and a pinch of salt, so we really should stop being so salt-centric and think much more about water as the problem in decompensated heart failure,” said John G.F. Cleland, MD, PhD, during the question-and-answer period after Montgomery’s presentation. Dr. Cleland, of the University of Glasgow Institute of Health and Wellbeing, is not connected to OSPREY-AHF.

“I think that maybe we overinterpret how important salt is” as a focus of volume management in ADHF, offered David Lanfear, MD, Henry Ford Health System, Detroit, who is also not part of the study.

OSPREY-AHF was well conducted but applies to a “very specific” clinical setting, Dr. Lanfear said in an interview. “These people are getting aggressive diuresis, a big dose and continuous infusion. It’s not everybody that has heart failure.”

Although the study was small, “I think it will fuel interest in this area and, probably, further investigation,” he said. The trial on its own won’t change practice, “but it will raise some eyebrows.”

The trial included patients with ADHF who have been “admitted to a cardiovascular medicine floor, not the intensive care unit” and were receiving at least 10 mg per hour of furosemide. It excluded any who were “hypernatremic or severely hyponatremic,” said Dr. Montgomery when presenting the study. They were required to have an initial estimated glomerular filtration rate (eGFR) of at least 15 mL/min per 1.73 m2.

The patients were randomly assigned double blind at a single center to receive tablets providing 2 g sodium chloride or placebo pills – 34 and 31 patients, respectively – three times daily during intravenous diuresis.

At 96 hours, the two groups showed no difference in change in creatinine levels or change in weight, both primary endpoints. Nor did they differ in urine output or change in eGFR. But serum sodium levels fell further, and BUN levels went up more in those given placebo.

The two groups showed no differences in hospital length of stay, use of renal replacement therapy at 90 days, ICU time during the index hospitalization, 30-day readmission, or 90-day mortality – although the trial wasn’t powered for clinical outcomes, Dr. Montgomery reported.

"We have patients who complain about their sodium-restricted diet, we have patients that have cachexia, who have a lot of complaints about provider-ordered meals and recommendations,” Dr. Montgomery explained in an interview.

Clinicians provide education and invest a lot of effort into getting patients with heart failure to start and maintain a low-sodium diet, he said. “But a low-sodium diet, in prior studies – and our study adds to this – is not a lever that actually seems to positively or adversely affect patients.”

Dr. Montgomery pointed to the recently published SODIUM-HF trial comparing low-sodium and unrestricted-sodium diets in outpatients with heart failure. It saw no clinical benefit from the low-sodium intervention.

Until studies show, potentially, that sodium restriction in hospitalized patients with heart failure makes a clinical difference, Dr. Montgomery said, “I’d say we should invest our time in things that we know are the most helpful, like getting them on guideline-directed medical therapy, when instead we spend an enormous amount of time counseling on and enforcing dietary restriction.”

Support for this study was provided by Cleveland Clinic Heart Vascular and Thoracic Institute’s Wilson Grant and Kaufman Center for Heart Failure Treatment and Recovery Grant. Dr. Lanfear disclosed research support from SomaLogic and Lilly; consulting for Abbott Laboratories, AstraZeneca, Janssen, Martin Pharmaceuticals, and Amgen; and serving on advisory panels for Illumina and Cytokinetics. Dr. Montgomery and Dr. Cleland disclosed no relevant financial relationships.

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

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Restriction of dietary salt to alleviate or prevent volume overload in patients with acute decompensated heart failure (ADHF) is common hospital practice, but without a solid evidence base. A trial testing whether taking salt pills might have benefits for patients with ADHF undergoing intensive diuresis, therefore, may seem a bit counterintuitive.

In just such a randomized, placebo-controlled trial, the approach made no difference to weight loss on diuresis, a proxy for volume reduction, or to serum creatinine levels in ADHF patients receiving high-dose intravenous diuretic therapy.

Georges Lievre / Fotolia.com

The patients consumed the extra salt during their intravenous therapy in the form of tablets providing 6 g sodium chloride daily on top of their hospital-provided, low-sodium meals.

During that time, serum sodium levels remained stable for the 34 patients assigned to the salt tablets but dropped significantly in the 31 given placebo pills.

They lost about the same weight, averages of 4 kg and 4.6 kg (8.8-10 lb), respectively, and their urine output was also similar. Patients who took the salt tablets showed less of an increase in blood urea nitrogen (BUN) at both 96 hours and at discharge.

The findings “challenge the routine practice of sodium chloride restriction in acute heart failure, something done thousands of times a day, millions of times a year,” Robert A. Montgomery, MD, Cleveland Clinic, said when presenting the study at the annual scientific meeting of the Heart Failure Society of America.

The trial, called OSPREY-AHF (Oral Sodium to Preserve Renal Efficiency in Acute Heart Failure), also may encourage a shift in ADHF management from a preoccupation with salt restriction to focus more on fighting fluid retention.

OSPREY-HF took on “an established practice that doesn’t have much high-quality evidentiary support,” one guided primarily by consensus and observational data, Montgomery said in an interview.

There are also potential downsides to dietary sodium restriction, including some that may complicate or block ADHF therapies.

“Low-sodium diets can be associated with decreased caloric intake and nutritional quality,” Dr. Montgomery observed. And observational studies suggest that “patients who are on a low sodium diet can develop increased neurohormonal activation. The kidney is not sensing salt, and so starts ramping up the hormones,” which promotes diuretic resistance.

But emerging evidence also suggests “that giving sodium chloride in the form of hypertonic saline can help patients who are diuretic resistant.” The intervention, which appears to attenuate the neurohormonal activation associated with high-dose intravenous diuretics, Dr. Montgomery noted, helped inspire the design of OSPREY-AHF.

Edema consists of “a gallon of water and a pinch of salt, so we really should stop being so salt-centric and think much more about water as the problem in decompensated heart failure,” said John G.F. Cleland, MD, PhD, during the question-and-answer period after Montgomery’s presentation. Dr. Cleland, of the University of Glasgow Institute of Health and Wellbeing, is not connected to OSPREY-AHF.

“I think that maybe we overinterpret how important salt is” as a focus of volume management in ADHF, offered David Lanfear, MD, Henry Ford Health System, Detroit, who is also not part of the study.

OSPREY-AHF was well conducted but applies to a “very specific” clinical setting, Dr. Lanfear said in an interview. “These people are getting aggressive diuresis, a big dose and continuous infusion. It’s not everybody that has heart failure.”

Although the study was small, “I think it will fuel interest in this area and, probably, further investigation,” he said. The trial on its own won’t change practice, “but it will raise some eyebrows.”

The trial included patients with ADHF who have been “admitted to a cardiovascular medicine floor, not the intensive care unit” and were receiving at least 10 mg per hour of furosemide. It excluded any who were “hypernatremic or severely hyponatremic,” said Dr. Montgomery when presenting the study. They were required to have an initial estimated glomerular filtration rate (eGFR) of at least 15 mL/min per 1.73 m2.

The patients were randomly assigned double blind at a single center to receive tablets providing 2 g sodium chloride or placebo pills – 34 and 31 patients, respectively – three times daily during intravenous diuresis.

At 96 hours, the two groups showed no difference in change in creatinine levels or change in weight, both primary endpoints. Nor did they differ in urine output or change in eGFR. But serum sodium levels fell further, and BUN levels went up more in those given placebo.

The two groups showed no differences in hospital length of stay, use of renal replacement therapy at 90 days, ICU time during the index hospitalization, 30-day readmission, or 90-day mortality – although the trial wasn’t powered for clinical outcomes, Dr. Montgomery reported.

"We have patients who complain about their sodium-restricted diet, we have patients that have cachexia, who have a lot of complaints about provider-ordered meals and recommendations,” Dr. Montgomery explained in an interview.

Clinicians provide education and invest a lot of effort into getting patients with heart failure to start and maintain a low-sodium diet, he said. “But a low-sodium diet, in prior studies – and our study adds to this – is not a lever that actually seems to positively or adversely affect patients.”

Dr. Montgomery pointed to the recently published SODIUM-HF trial comparing low-sodium and unrestricted-sodium diets in outpatients with heart failure. It saw no clinical benefit from the low-sodium intervention.

Until studies show, potentially, that sodium restriction in hospitalized patients with heart failure makes a clinical difference, Dr. Montgomery said, “I’d say we should invest our time in things that we know are the most helpful, like getting them on guideline-directed medical therapy, when instead we spend an enormous amount of time counseling on and enforcing dietary restriction.”

Support for this study was provided by Cleveland Clinic Heart Vascular and Thoracic Institute’s Wilson Grant and Kaufman Center for Heart Failure Treatment and Recovery Grant. Dr. Lanfear disclosed research support from SomaLogic and Lilly; consulting for Abbott Laboratories, AstraZeneca, Janssen, Martin Pharmaceuticals, and Amgen; and serving on advisory panels for Illumina and Cytokinetics. Dr. Montgomery and Dr. Cleland disclosed no relevant financial relationships.

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

 

Restriction of dietary salt to alleviate or prevent volume overload in patients with acute decompensated heart failure (ADHF) is common hospital practice, but without a solid evidence base. A trial testing whether taking salt pills might have benefits for patients with ADHF undergoing intensive diuresis, therefore, may seem a bit counterintuitive.

In just such a randomized, placebo-controlled trial, the approach made no difference to weight loss on diuresis, a proxy for volume reduction, or to serum creatinine levels in ADHF patients receiving high-dose intravenous diuretic therapy.

Georges Lievre / Fotolia.com

The patients consumed the extra salt during their intravenous therapy in the form of tablets providing 6 g sodium chloride daily on top of their hospital-provided, low-sodium meals.

During that time, serum sodium levels remained stable for the 34 patients assigned to the salt tablets but dropped significantly in the 31 given placebo pills.

They lost about the same weight, averages of 4 kg and 4.6 kg (8.8-10 lb), respectively, and their urine output was also similar. Patients who took the salt tablets showed less of an increase in blood urea nitrogen (BUN) at both 96 hours and at discharge.

The findings “challenge the routine practice of sodium chloride restriction in acute heart failure, something done thousands of times a day, millions of times a year,” Robert A. Montgomery, MD, Cleveland Clinic, said when presenting the study at the annual scientific meeting of the Heart Failure Society of America.

The trial, called OSPREY-AHF (Oral Sodium to Preserve Renal Efficiency in Acute Heart Failure), also may encourage a shift in ADHF management from a preoccupation with salt restriction to focus more on fighting fluid retention.

OSPREY-HF took on “an established practice that doesn’t have much high-quality evidentiary support,” one guided primarily by consensus and observational data, Montgomery said in an interview.

There are also potential downsides to dietary sodium restriction, including some that may complicate or block ADHF therapies.

“Low-sodium diets can be associated with decreased caloric intake and nutritional quality,” Dr. Montgomery observed. And observational studies suggest that “patients who are on a low sodium diet can develop increased neurohormonal activation. The kidney is not sensing salt, and so starts ramping up the hormones,” which promotes diuretic resistance.

But emerging evidence also suggests “that giving sodium chloride in the form of hypertonic saline can help patients who are diuretic resistant.” The intervention, which appears to attenuate the neurohormonal activation associated with high-dose intravenous diuretics, Dr. Montgomery noted, helped inspire the design of OSPREY-AHF.

Edema consists of “a gallon of water and a pinch of salt, so we really should stop being so salt-centric and think much more about water as the problem in decompensated heart failure,” said John G.F. Cleland, MD, PhD, during the question-and-answer period after Montgomery’s presentation. Dr. Cleland, of the University of Glasgow Institute of Health and Wellbeing, is not connected to OSPREY-AHF.

“I think that maybe we overinterpret how important salt is” as a focus of volume management in ADHF, offered David Lanfear, MD, Henry Ford Health System, Detroit, who is also not part of the study.

OSPREY-AHF was well conducted but applies to a “very specific” clinical setting, Dr. Lanfear said in an interview. “These people are getting aggressive diuresis, a big dose and continuous infusion. It’s not everybody that has heart failure.”

Although the study was small, “I think it will fuel interest in this area and, probably, further investigation,” he said. The trial on its own won’t change practice, “but it will raise some eyebrows.”

The trial included patients with ADHF who have been “admitted to a cardiovascular medicine floor, not the intensive care unit” and were receiving at least 10 mg per hour of furosemide. It excluded any who were “hypernatremic or severely hyponatremic,” said Dr. Montgomery when presenting the study. They were required to have an initial estimated glomerular filtration rate (eGFR) of at least 15 mL/min per 1.73 m2.

The patients were randomly assigned double blind at a single center to receive tablets providing 2 g sodium chloride or placebo pills – 34 and 31 patients, respectively – three times daily during intravenous diuresis.

At 96 hours, the two groups showed no difference in change in creatinine levels or change in weight, both primary endpoints. Nor did they differ in urine output or change in eGFR. But serum sodium levels fell further, and BUN levels went up more in those given placebo.

The two groups showed no differences in hospital length of stay, use of renal replacement therapy at 90 days, ICU time during the index hospitalization, 30-day readmission, or 90-day mortality – although the trial wasn’t powered for clinical outcomes, Dr. Montgomery reported.

"We have patients who complain about their sodium-restricted diet, we have patients that have cachexia, who have a lot of complaints about provider-ordered meals and recommendations,” Dr. Montgomery explained in an interview.

Clinicians provide education and invest a lot of effort into getting patients with heart failure to start and maintain a low-sodium diet, he said. “But a low-sodium diet, in prior studies – and our study adds to this – is not a lever that actually seems to positively or adversely affect patients.”

Dr. Montgomery pointed to the recently published SODIUM-HF trial comparing low-sodium and unrestricted-sodium diets in outpatients with heart failure. It saw no clinical benefit from the low-sodium intervention.

Until studies show, potentially, that sodium restriction in hospitalized patients with heart failure makes a clinical difference, Dr. Montgomery said, “I’d say we should invest our time in things that we know are the most helpful, like getting them on guideline-directed medical therapy, when instead we spend an enormous amount of time counseling on and enforcing dietary restriction.”

Support for this study was provided by Cleveland Clinic Heart Vascular and Thoracic Institute’s Wilson Grant and Kaufman Center for Heart Failure Treatment and Recovery Grant. Dr. Lanfear disclosed research support from SomaLogic and Lilly; consulting for Abbott Laboratories, AstraZeneca, Janssen, Martin Pharmaceuticals, and Amgen; and serving on advisory panels for Illumina and Cytokinetics. Dr. Montgomery and Dr. Cleland disclosed no relevant financial relationships.

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

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Newer drugs not cost effective for first-line diabetes therapy

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Thu, 12/15/2022 - 14:24

 

To be cost effective, compared with metformin, for initial therapy for type 2 diabetes, prices for a sodium-glucose cotransporter-2 (SGLT2) inhibitor or a glucagon-like peptide-1 (GLP-1) agonist would have to fall by at least 70% and at least 90%, respectively, according to estimates.

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The study, modeled on U.S. patients, by Jin G. Choi, MD, and colleagues, was published online Oct. 3 in the Annals of Internal Medicine.

The researchers simulated the lifetime incidence, prevalence, mortality, and costs associated with three different first-line treatment strategies – metformin, an SGLT2 inhibitor, or a GLP-1 agonist – in U.S. patients with untreated type 2 diabetes.

Compared with patients who received initial treatment with metformin, those who received one of the newer drugs had 4.4% to 5.2% lower lifetime rates of congestive heart failure, ischemic heart disease, myocardial infarction, and stroke.

However, to be cost-effective at under $150,000 per quality-adjusted life-years (QALY), SGLT2 inhibitors would need to cost less than $5 a day ($1,800 a year), and GLP-1 agonists would have to cost less than $6 a day ($2,100 a year), a lot less than now.

Knowing how expensive these drugs are, “I am not surprised” that the model predicts that the price would have to drop so much to make them cost-effective, compared with first-line treatment with metformin, senior author Neda Laiteerapong, MD, said in an interview.

“But I am disappointed,” she said, because these drugs are very effective, and if the prices were lower, more people could benefit.

“In the interest of improving access to high-quality care in the United States, our study results indicate the need to reduce SGLT2 inhibitor and GLP-1 receptor agonist medication costs substantially for patients with type 2 [diabetes] to improve health outcomes and prevent exacerbating diabetes health disparities,” the researchers conclude.

One way that the newer drugs might be more widely affordable is if the government became involved, possibly by passing a law similar to the Affordable Insulin Now Act, speculated Dr. Laiteerapong, who is associate director at the Center for Chronic Disease Research and Policy, University of Chicago.
 

‘Current prices too high to encourage first-line adoption’

Guidelines recommend the use of SGLT2 inhibitors and GLP-1 agonists as second-line therapies for patients with type 2 diabetes, but it has not been clear if clinical benefits would outweigh costs for use as first-line therapies.

“Although clinical trials have demonstrated the clinical effectiveness of these newer drugs, they are hundreds of times more expensive than other ... diabetes drugs,” the researchers note.

On the other hand, costs may fall in the coming years when these new drugs come off-patent.

The current study was designed to help inform future clinical guidelines.

The researchers created a population simulation model based on the United Kingdom Prospective Diabetes Study, Outcomes Model version 2 (UKPDS OM2) for diabetes-related complications and mortality, with added information about hypoglycemic events, quality of life, and U.S. costs. 

The researchers also identified a nationally representative sample of people who would be eligible to start first-line diabetes therapy when their A1c reached 7% for the model. 

Using National Health and Nutrition Examination Survey (NHANES) data (2013-2016), the researchers identified about 7.3 million U.S. adults aged 18 and older with self-reported diabetes or an A1c greater than 6.5% with no reported use of diabetes medications.

Patients were an average age of 55, and 55% were women. They had had diabetes for an average of 4.2 years, and 36% had a history of diabetes complications.

The model projected that patients would have an improved life expectancy of 3.0 and 3.4 months from first-line SGLT2 inhibitors and GLP-1 agonists, respectively, compared with initial therapy with metformin due to reduced rates of macrovascular disease.  

“However, the current drug costs would be too high to encourage their adoption as first-line for usual clinical practice,” the researchers report.
 

 

 

‘Disparities could remain for decades’

Generic SGLT2 inhibitors could enter the marketplace shortly, because one of two dapagliflozin patents expired in October 2020 and approval for generic alternatives has been sought from the U.S. Food and Drug Administration, Dr. Choi and colleagues note.

However, it could still take decades for medication prices to drop low enough to become affordable, the group cautions. For example, a generic GLP-1 agonist became available in 2017, but costs remain high.

“Without external incentives,” the group writes, “limited access to these drug classes will likely persist (for example, due to higher copays or requirements for prior authorizations), as will further diabetes disparities – for decades into the future – because of differential access to care due to insurance (for example, private vs. public), which often tracks race and ethnicity.”

The study was supported by the American Diabetes Association. Dr. Choi was supported by a National Institutes of Health, National Institute on Aging grant. Dr. Laiteerapong and other co-authors are members of the National Institute of Diabetes and Digestive and Kidney Diseases Chicago Center for Diabetes Translation Research at the University of Chicago. Dr. Choi and Dr. Laiteerapong have reported no relevant financial relationships.

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

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To be cost effective, compared with metformin, for initial therapy for type 2 diabetes, prices for a sodium-glucose cotransporter-2 (SGLT2) inhibitor or a glucagon-like peptide-1 (GLP-1) agonist would have to fall by at least 70% and at least 90%, respectively, according to estimates.

Thinkstock Photos

The study, modeled on U.S. patients, by Jin G. Choi, MD, and colleagues, was published online Oct. 3 in the Annals of Internal Medicine.

The researchers simulated the lifetime incidence, prevalence, mortality, and costs associated with three different first-line treatment strategies – metformin, an SGLT2 inhibitor, or a GLP-1 agonist – in U.S. patients with untreated type 2 diabetes.

Compared with patients who received initial treatment with metformin, those who received one of the newer drugs had 4.4% to 5.2% lower lifetime rates of congestive heart failure, ischemic heart disease, myocardial infarction, and stroke.

However, to be cost-effective at under $150,000 per quality-adjusted life-years (QALY), SGLT2 inhibitors would need to cost less than $5 a day ($1,800 a year), and GLP-1 agonists would have to cost less than $6 a day ($2,100 a year), a lot less than now.

Knowing how expensive these drugs are, “I am not surprised” that the model predicts that the price would have to drop so much to make them cost-effective, compared with first-line treatment with metformin, senior author Neda Laiteerapong, MD, said in an interview.

“But I am disappointed,” she said, because these drugs are very effective, and if the prices were lower, more people could benefit.

“In the interest of improving access to high-quality care in the United States, our study results indicate the need to reduce SGLT2 inhibitor and GLP-1 receptor agonist medication costs substantially for patients with type 2 [diabetes] to improve health outcomes and prevent exacerbating diabetes health disparities,” the researchers conclude.

One way that the newer drugs might be more widely affordable is if the government became involved, possibly by passing a law similar to the Affordable Insulin Now Act, speculated Dr. Laiteerapong, who is associate director at the Center for Chronic Disease Research and Policy, University of Chicago.
 

‘Current prices too high to encourage first-line adoption’

Guidelines recommend the use of SGLT2 inhibitors and GLP-1 agonists as second-line therapies for patients with type 2 diabetes, but it has not been clear if clinical benefits would outweigh costs for use as first-line therapies.

“Although clinical trials have demonstrated the clinical effectiveness of these newer drugs, they are hundreds of times more expensive than other ... diabetes drugs,” the researchers note.

On the other hand, costs may fall in the coming years when these new drugs come off-patent.

The current study was designed to help inform future clinical guidelines.

The researchers created a population simulation model based on the United Kingdom Prospective Diabetes Study, Outcomes Model version 2 (UKPDS OM2) for diabetes-related complications and mortality, with added information about hypoglycemic events, quality of life, and U.S. costs. 

The researchers also identified a nationally representative sample of people who would be eligible to start first-line diabetes therapy when their A1c reached 7% for the model. 

Using National Health and Nutrition Examination Survey (NHANES) data (2013-2016), the researchers identified about 7.3 million U.S. adults aged 18 and older with self-reported diabetes or an A1c greater than 6.5% with no reported use of diabetes medications.

Patients were an average age of 55, and 55% were women. They had had diabetes for an average of 4.2 years, and 36% had a history of diabetes complications.

The model projected that patients would have an improved life expectancy of 3.0 and 3.4 months from first-line SGLT2 inhibitors and GLP-1 agonists, respectively, compared with initial therapy with metformin due to reduced rates of macrovascular disease.  

“However, the current drug costs would be too high to encourage their adoption as first-line for usual clinical practice,” the researchers report.
 

 

 

‘Disparities could remain for decades’

Generic SGLT2 inhibitors could enter the marketplace shortly, because one of two dapagliflozin patents expired in October 2020 and approval for generic alternatives has been sought from the U.S. Food and Drug Administration, Dr. Choi and colleagues note.

However, it could still take decades for medication prices to drop low enough to become affordable, the group cautions. For example, a generic GLP-1 agonist became available in 2017, but costs remain high.

“Without external incentives,” the group writes, “limited access to these drug classes will likely persist (for example, due to higher copays or requirements for prior authorizations), as will further diabetes disparities – for decades into the future – because of differential access to care due to insurance (for example, private vs. public), which often tracks race and ethnicity.”

The study was supported by the American Diabetes Association. Dr. Choi was supported by a National Institutes of Health, National Institute on Aging grant. Dr. Laiteerapong and other co-authors are members of the National Institute of Diabetes and Digestive and Kidney Diseases Chicago Center for Diabetes Translation Research at the University of Chicago. Dr. Choi and Dr. Laiteerapong have reported no relevant financial relationships.

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

 

To be cost effective, compared with metformin, for initial therapy for type 2 diabetes, prices for a sodium-glucose cotransporter-2 (SGLT2) inhibitor or a glucagon-like peptide-1 (GLP-1) agonist would have to fall by at least 70% and at least 90%, respectively, according to estimates.

Thinkstock Photos

The study, modeled on U.S. patients, by Jin G. Choi, MD, and colleagues, was published online Oct. 3 in the Annals of Internal Medicine.

The researchers simulated the lifetime incidence, prevalence, mortality, and costs associated with three different first-line treatment strategies – metformin, an SGLT2 inhibitor, or a GLP-1 agonist – in U.S. patients with untreated type 2 diabetes.

Compared with patients who received initial treatment with metformin, those who received one of the newer drugs had 4.4% to 5.2% lower lifetime rates of congestive heart failure, ischemic heart disease, myocardial infarction, and stroke.

However, to be cost-effective at under $150,000 per quality-adjusted life-years (QALY), SGLT2 inhibitors would need to cost less than $5 a day ($1,800 a year), and GLP-1 agonists would have to cost less than $6 a day ($2,100 a year), a lot less than now.

Knowing how expensive these drugs are, “I am not surprised” that the model predicts that the price would have to drop so much to make them cost-effective, compared with first-line treatment with metformin, senior author Neda Laiteerapong, MD, said in an interview.

“But I am disappointed,” she said, because these drugs are very effective, and if the prices were lower, more people could benefit.

“In the interest of improving access to high-quality care in the United States, our study results indicate the need to reduce SGLT2 inhibitor and GLP-1 receptor agonist medication costs substantially for patients with type 2 [diabetes] to improve health outcomes and prevent exacerbating diabetes health disparities,” the researchers conclude.

One way that the newer drugs might be more widely affordable is if the government became involved, possibly by passing a law similar to the Affordable Insulin Now Act, speculated Dr. Laiteerapong, who is associate director at the Center for Chronic Disease Research and Policy, University of Chicago.
 

‘Current prices too high to encourage first-line adoption’

Guidelines recommend the use of SGLT2 inhibitors and GLP-1 agonists as second-line therapies for patients with type 2 diabetes, but it has not been clear if clinical benefits would outweigh costs for use as first-line therapies.

“Although clinical trials have demonstrated the clinical effectiveness of these newer drugs, they are hundreds of times more expensive than other ... diabetes drugs,” the researchers note.

On the other hand, costs may fall in the coming years when these new drugs come off-patent.

The current study was designed to help inform future clinical guidelines.

The researchers created a population simulation model based on the United Kingdom Prospective Diabetes Study, Outcomes Model version 2 (UKPDS OM2) for diabetes-related complications and mortality, with added information about hypoglycemic events, quality of life, and U.S. costs. 

The researchers also identified a nationally representative sample of people who would be eligible to start first-line diabetes therapy when their A1c reached 7% for the model. 

Using National Health and Nutrition Examination Survey (NHANES) data (2013-2016), the researchers identified about 7.3 million U.S. adults aged 18 and older with self-reported diabetes or an A1c greater than 6.5% with no reported use of diabetes medications.

Patients were an average age of 55, and 55% were women. They had had diabetes for an average of 4.2 years, and 36% had a history of diabetes complications.

The model projected that patients would have an improved life expectancy of 3.0 and 3.4 months from first-line SGLT2 inhibitors and GLP-1 agonists, respectively, compared with initial therapy with metformin due to reduced rates of macrovascular disease.  

“However, the current drug costs would be too high to encourage their adoption as first-line for usual clinical practice,” the researchers report.
 

 

 

‘Disparities could remain for decades’

Generic SGLT2 inhibitors could enter the marketplace shortly, because one of two dapagliflozin patents expired in October 2020 and approval for generic alternatives has been sought from the U.S. Food and Drug Administration, Dr. Choi and colleagues note.

However, it could still take decades for medication prices to drop low enough to become affordable, the group cautions. For example, a generic GLP-1 agonist became available in 2017, but costs remain high.

“Without external incentives,” the group writes, “limited access to these drug classes will likely persist (for example, due to higher copays or requirements for prior authorizations), as will further diabetes disparities – for decades into the future – because of differential access to care due to insurance (for example, private vs. public), which often tracks race and ethnicity.”

The study was supported by the American Diabetes Association. Dr. Choi was supported by a National Institutes of Health, National Institute on Aging grant. Dr. Laiteerapong and other co-authors are members of the National Institute of Diabetes and Digestive and Kidney Diseases Chicago Center for Diabetes Translation Research at the University of Chicago. Dr. Choi and Dr. Laiteerapong have reported no relevant financial relationships.

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

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Malaria vaccine gets special delivery by tiny health personnel

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Thu, 10/06/2022 - 09:17

 

Don’t like needles? Have we got a vaccine for you

Here’s a quick question: How do you turn the most annoying thing ever into something positive?

No, we’re not talking about politicians this time. No, not Elon Musk, either. Infomercials? Guess again. Humidity? Nope, even more annoying than that.

Give up? The most annoying thing ever is mosquitoes. This time, however, NPR reports that mosquitoes have been used to deliver a vaccine for the very disease they’ve been transmitting to their human food sources all these years.

Courtesy Jim Gathany/CDC

In a recent proof-of-concept trial, investigators used CRISPR technology to genetically modify malaria-causing Plasmodium falciparum sporozoites, which just happen to live in the salivary glands of Anopheles mosquitoes. And since the Plasmodium parasites are already in the mosquitoes, it made sense to use the buzzy little critters as the delivery device for the vaccine.

More sense than a syringe, you ask? Have you ever tried to poke a syringe into the salivary gland of a mosquito? No, we thought not. Well, we can tell you from experience that it’s really, really hard. Never mind how we know. We just do.

The 14 study volunteers – who were paid $4,100 for their participation – were first exposed to hundreds of mosquitoes carrying the altered Plasmodium parasites. Then, to test the vaccine, they were exposed to mosquitoes that had actual, malaria-carrying Plasmodium. Half of the subjects got malaria, so the vaccine was only 50% effective, meaning there’s still work to do.

Meanwhile, the scientists here at LOTMEco are all over this mosquito-delivery business, working on a vaccine to prevent Elon Musk. Plan B involves some sort of really big swatter.
 

Climate change: Sleeping your life away

It’s no secret that climate change is raising the temperature on everything. You may think you’re getting relief when the sun goes down, but in some places it’s still hot. A new survey conducted in central Japan shows how bad it can be and how higher nighttime temperatures can have a serious impact on people’s health.

Public Domain Vectors

That online survey, the Sleep Quality Index for Daily Sleep, enabled the investigators to correlate sleep quality with daily temperature for 1,284 adults in 2011 and 2012 who completed the survey over 10 days.

Not only was there a significant difference in sleep disturbance among younger men (higher) versus older men, but the prevalence of sleep disturbance went up when the daytime temperature was above 24.8° C. They also found that disability-adjusted life-years (DALYs), which measure time lost through premature death and time lived in certain conditions that put one’s health at risk, were 81.8 years for the city of Nagoya (population, 2.2 million) in 2012.

The damage to health from sleep disorders caused by daily temperatures higher than 25° C “is comparable to that of heatstroke and must be addressed,” lead author Tomohiko Ihara of the University of Tokyo said in a written statement.

The researchers hope that this information will help sway legislators to consider the impact of higher nighttime temperatures and that it can be used to provide guidance for better sleep. The solution for now? Sleep with the air conditioner on. Your energy bill might increase, but just think about those DALYs. If using the AC lowers DALYs and increases time lived, then we say it’s worth it.
 

 

 

Maybe it would have been a dragon WITH cancer

If you ask a random person on the street to tell you all they know about the country of Wales, they’ll probably mention two things: One, the contorted collection of jumbled-up letters that is the Welsh language (looking at you, Llanfairpwllgwyngyll­gogery­chwyrn­drobwll­llan­tysilio­gogo­goch) and, two, the association with dragons. The Welsh flag even has a dragon on it.

evakocsan/Pixnio

With that in mind, take a guess as to what sort of statue art dealer Simon Wingett wanted to build in the Welsh town of Wrexham. No, not a monument to the second-longest place name in the world. Try again. His dragon would not be some piddly little thing either; he wanted a virtual kaiju overlooking the town, with the whole statue to stand about 60 meters high. That’s taller than the original 1954 Godzilla.

Artistic masterpieces may sell for frankly insane prices, but art dealers themselves are not the wealthiest of individuals, so Mr. Wingett needed money to fund his dragon-based dream. Lucky for him, he also happened to be the manager of a cancer charity – initially set up by Mr. Wingett’s father, who had throat cancer – which nominally aimed to provide equipment and resources to cancer patients in the Wrexham area.

Yes, this is going precisely where you think it’s going. From 2011 to 2018, when the charity closed, Mr. Wingett used the charity’s donations to fund his dragon statue – which never actually got built, by the way – to the tune of over 400,000 pounds. Of course, Mr. Wingett came under scrutiny when people started to notice that his cancer charity hadn’t actually done anything charitable since 2011, and he was recently banned by the Welsh High Court from serving as trustee of any charity for 10 years. Oh no, tragedy and horror! Truly a punishment worse than death itself.

Okay fine, he also has to pay back 117,000 pounds to actual legitimate cancer charities. The astute mathematicians out there may notice that 117,000 is a lot less than 400,000. But it’s just as the old saying goes: One-quarter of crime doesn’t pay. You can keep three-quarters of it, though, that’s completely fine.

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Don’t like needles? Have we got a vaccine for you

Here’s a quick question: How do you turn the most annoying thing ever into something positive?

No, we’re not talking about politicians this time. No, not Elon Musk, either. Infomercials? Guess again. Humidity? Nope, even more annoying than that.

Give up? The most annoying thing ever is mosquitoes. This time, however, NPR reports that mosquitoes have been used to deliver a vaccine for the very disease they’ve been transmitting to their human food sources all these years.

Courtesy Jim Gathany/CDC

In a recent proof-of-concept trial, investigators used CRISPR technology to genetically modify malaria-causing Plasmodium falciparum sporozoites, which just happen to live in the salivary glands of Anopheles mosquitoes. And since the Plasmodium parasites are already in the mosquitoes, it made sense to use the buzzy little critters as the delivery device for the vaccine.

More sense than a syringe, you ask? Have you ever tried to poke a syringe into the salivary gland of a mosquito? No, we thought not. Well, we can tell you from experience that it’s really, really hard. Never mind how we know. We just do.

The 14 study volunteers – who were paid $4,100 for their participation – were first exposed to hundreds of mosquitoes carrying the altered Plasmodium parasites. Then, to test the vaccine, they were exposed to mosquitoes that had actual, malaria-carrying Plasmodium. Half of the subjects got malaria, so the vaccine was only 50% effective, meaning there’s still work to do.

Meanwhile, the scientists here at LOTMEco are all over this mosquito-delivery business, working on a vaccine to prevent Elon Musk. Plan B involves some sort of really big swatter.
 

Climate change: Sleeping your life away

It’s no secret that climate change is raising the temperature on everything. You may think you’re getting relief when the sun goes down, but in some places it’s still hot. A new survey conducted in central Japan shows how bad it can be and how higher nighttime temperatures can have a serious impact on people’s health.

Public Domain Vectors

That online survey, the Sleep Quality Index for Daily Sleep, enabled the investigators to correlate sleep quality with daily temperature for 1,284 adults in 2011 and 2012 who completed the survey over 10 days.

Not only was there a significant difference in sleep disturbance among younger men (higher) versus older men, but the prevalence of sleep disturbance went up when the daytime temperature was above 24.8° C. They also found that disability-adjusted life-years (DALYs), which measure time lost through premature death and time lived in certain conditions that put one’s health at risk, were 81.8 years for the city of Nagoya (population, 2.2 million) in 2012.

The damage to health from sleep disorders caused by daily temperatures higher than 25° C “is comparable to that of heatstroke and must be addressed,” lead author Tomohiko Ihara of the University of Tokyo said in a written statement.

The researchers hope that this information will help sway legislators to consider the impact of higher nighttime temperatures and that it can be used to provide guidance for better sleep. The solution for now? Sleep with the air conditioner on. Your energy bill might increase, but just think about those DALYs. If using the AC lowers DALYs and increases time lived, then we say it’s worth it.
 

 

 

Maybe it would have been a dragon WITH cancer

If you ask a random person on the street to tell you all they know about the country of Wales, they’ll probably mention two things: One, the contorted collection of jumbled-up letters that is the Welsh language (looking at you, Llanfairpwllgwyngyll­gogery­chwyrn­drobwll­llan­tysilio­gogo­goch) and, two, the association with dragons. The Welsh flag even has a dragon on it.

evakocsan/Pixnio

With that in mind, take a guess as to what sort of statue art dealer Simon Wingett wanted to build in the Welsh town of Wrexham. No, not a monument to the second-longest place name in the world. Try again. His dragon would not be some piddly little thing either; he wanted a virtual kaiju overlooking the town, with the whole statue to stand about 60 meters high. That’s taller than the original 1954 Godzilla.

Artistic masterpieces may sell for frankly insane prices, but art dealers themselves are not the wealthiest of individuals, so Mr. Wingett needed money to fund his dragon-based dream. Lucky for him, he also happened to be the manager of a cancer charity – initially set up by Mr. Wingett’s father, who had throat cancer – which nominally aimed to provide equipment and resources to cancer patients in the Wrexham area.

Yes, this is going precisely where you think it’s going. From 2011 to 2018, when the charity closed, Mr. Wingett used the charity’s donations to fund his dragon statue – which never actually got built, by the way – to the tune of over 400,000 pounds. Of course, Mr. Wingett came under scrutiny when people started to notice that his cancer charity hadn’t actually done anything charitable since 2011, and he was recently banned by the Welsh High Court from serving as trustee of any charity for 10 years. Oh no, tragedy and horror! Truly a punishment worse than death itself.

Okay fine, he also has to pay back 117,000 pounds to actual legitimate cancer charities. The astute mathematicians out there may notice that 117,000 is a lot less than 400,000. But it’s just as the old saying goes: One-quarter of crime doesn’t pay. You can keep three-quarters of it, though, that’s completely fine.

 

Don’t like needles? Have we got a vaccine for you

Here’s a quick question: How do you turn the most annoying thing ever into something positive?

No, we’re not talking about politicians this time. No, not Elon Musk, either. Infomercials? Guess again. Humidity? Nope, even more annoying than that.

Give up? The most annoying thing ever is mosquitoes. This time, however, NPR reports that mosquitoes have been used to deliver a vaccine for the very disease they’ve been transmitting to their human food sources all these years.

Courtesy Jim Gathany/CDC

In a recent proof-of-concept trial, investigators used CRISPR technology to genetically modify malaria-causing Plasmodium falciparum sporozoites, which just happen to live in the salivary glands of Anopheles mosquitoes. And since the Plasmodium parasites are already in the mosquitoes, it made sense to use the buzzy little critters as the delivery device for the vaccine.

More sense than a syringe, you ask? Have you ever tried to poke a syringe into the salivary gland of a mosquito? No, we thought not. Well, we can tell you from experience that it’s really, really hard. Never mind how we know. We just do.

The 14 study volunteers – who were paid $4,100 for their participation – were first exposed to hundreds of mosquitoes carrying the altered Plasmodium parasites. Then, to test the vaccine, they were exposed to mosquitoes that had actual, malaria-carrying Plasmodium. Half of the subjects got malaria, so the vaccine was only 50% effective, meaning there’s still work to do.

Meanwhile, the scientists here at LOTMEco are all over this mosquito-delivery business, working on a vaccine to prevent Elon Musk. Plan B involves some sort of really big swatter.
 

Climate change: Sleeping your life away

It’s no secret that climate change is raising the temperature on everything. You may think you’re getting relief when the sun goes down, but in some places it’s still hot. A new survey conducted in central Japan shows how bad it can be and how higher nighttime temperatures can have a serious impact on people’s health.

Public Domain Vectors

That online survey, the Sleep Quality Index for Daily Sleep, enabled the investigators to correlate sleep quality with daily temperature for 1,284 adults in 2011 and 2012 who completed the survey over 10 days.

Not only was there a significant difference in sleep disturbance among younger men (higher) versus older men, but the prevalence of sleep disturbance went up when the daytime temperature was above 24.8° C. They also found that disability-adjusted life-years (DALYs), which measure time lost through premature death and time lived in certain conditions that put one’s health at risk, were 81.8 years for the city of Nagoya (population, 2.2 million) in 2012.

The damage to health from sleep disorders caused by daily temperatures higher than 25° C “is comparable to that of heatstroke and must be addressed,” lead author Tomohiko Ihara of the University of Tokyo said in a written statement.

The researchers hope that this information will help sway legislators to consider the impact of higher nighttime temperatures and that it can be used to provide guidance for better sleep. The solution for now? Sleep with the air conditioner on. Your energy bill might increase, but just think about those DALYs. If using the AC lowers DALYs and increases time lived, then we say it’s worth it.
 

 

 

Maybe it would have been a dragon WITH cancer

If you ask a random person on the street to tell you all they know about the country of Wales, they’ll probably mention two things: One, the contorted collection of jumbled-up letters that is the Welsh language (looking at you, Llanfairpwllgwyngyll­gogery­chwyrn­drobwll­llan­tysilio­gogo­goch) and, two, the association with dragons. The Welsh flag even has a dragon on it.

evakocsan/Pixnio

With that in mind, take a guess as to what sort of statue art dealer Simon Wingett wanted to build in the Welsh town of Wrexham. No, not a monument to the second-longest place name in the world. Try again. His dragon would not be some piddly little thing either; he wanted a virtual kaiju overlooking the town, with the whole statue to stand about 60 meters high. That’s taller than the original 1954 Godzilla.

Artistic masterpieces may sell for frankly insane prices, but art dealers themselves are not the wealthiest of individuals, so Mr. Wingett needed money to fund his dragon-based dream. Lucky for him, he also happened to be the manager of a cancer charity – initially set up by Mr. Wingett’s father, who had throat cancer – which nominally aimed to provide equipment and resources to cancer patients in the Wrexham area.

Yes, this is going precisely where you think it’s going. From 2011 to 2018, when the charity closed, Mr. Wingett used the charity’s donations to fund his dragon statue – which never actually got built, by the way – to the tune of over 400,000 pounds. Of course, Mr. Wingett came under scrutiny when people started to notice that his cancer charity hadn’t actually done anything charitable since 2011, and he was recently banned by the Welsh High Court from serving as trustee of any charity for 10 years. Oh no, tragedy and horror! Truly a punishment worse than death itself.

Okay fine, he also has to pay back 117,000 pounds to actual legitimate cancer charities. The astute mathematicians out there may notice that 117,000 is a lot less than 400,000. But it’s just as the old saying goes: One-quarter of crime doesn’t pay. You can keep three-quarters of it, though, that’s completely fine.

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Food insecurity a growing problem for many with CVD

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Changed
Thu, 12/15/2022 - 14:24

A growing number of Americans with cardiovascular disease (CVD) have limited or uncertain access to food, results of a new study suggest.

An analysis of data from the National Health and Nutrition Examination Survey (NHANES) representing more than 300 million American adults found that, overall, 38.1% of people with cardiovascular disease were food insecure in 2017-2019.

©Amanda Grandfield/iStockphoto.com


Twenty years earlier, that rate was 16.3%.

“What really stood out from our study is how frequent food insecurity is among people with cardiovascular disease, compared to those without cardiovascular disease,” lead author, Eric J. Brandt, MD, MHS, a cardiologist at the University of Michigan Health Frankel Cardiovascular Center, Ann Arbor, said in an interview.

“We believe that the relationship between food insecurity and cardiovascular disease is bidirectional. Food insecurity puts people at risk for cardiovascular disease, which then makes them vulnerable to events like myocardial infarction or stroke, which in turn may make them less able to work, thereby worsening their financial situation and increasing their vulnerability to food insecurity,” Dr. Brandt said.

For the analysis, Dr. Brandt and his team used an analytic sample of 57,517 adults to represent 312 million non-institutionalized adults in the United States.

Overall, 6,770 individuals (11.8%) in the analytic sample reported food insecurity.

Food insecurity was more prevalent among Hispanic people (n = 1,938, 24.0%) and non-Hispanic Black people (n = 1,202, 18.2%), compared with non-Hispanic Asian people (n = 100, 8.0%), and non-Hispanic White people (n = 3,221, 8.5%).

The prevalence of cardiovascular disease in the sample was 7.9% (n = 4,527).

Hypertension was the most prevalent CVD risk factor, reported in 49.6% of the sample. This was followed by obesity in 33.2%, dyslipidemia in 30.8%, and diabetes in 11.2%.

The findings were published online  in JAMA Cardiology.

“All cardiovascular disease and cardiometabolic diseases except coronary artery disease were more prevalent among those with food insecurity,” Dr. Brandt noted.

“The results of our study are especially timely, as the White House just hosted its first conference on Hunger, Nutrition, and Health in over 50 years. Food insecurity is a focus of that conference. In the last few years, especially in relation to the pandemic, there has been expansion of some of the federal programs to prevent food insecurity. I would like to see a continued effort to solve this,” he said.

Dr. Brandt added that he hopes clinicians will be more cognizant of the problem of food insecurity and other social determinants of health when they see their patients.

“If someone is not going to be able to afford the food on their table, they’re probably not going to pay for their medications. Recognizing these social determinants in the clinical setting and helping our patients access local resources may address the underlying factors contributing to heart disease,” he said.
 

Uphill battle

Johanna Contreras, MD, advanced heart failure and transplant cardiologist at the Mount Sinai Hospital, New York, treats food insecure cardiovascular patients in her practice and tries to educate them about good nutrition. But it is an uphill battle.

“A lot of my patients live in the South Bronx. They have hypertension, hypercholesterolemia, and there are no grocery stores where they can buy fresh vegetables. I talk to them about eating healthy. They tell me it’s impossible. The stores only have pre-packaged foods. So even in the South Bronx, even though it is in New York, it is very hard to get fresh food. And when it is available, it is very expensive,” Dr. Contreras told this news organization.

“Fresh pineapples can cost $8. A fast-food burger costs $3. So that is what they buy: It’s what they can afford. Even the store managers don’t want to stock fresh produce because it can spoil. They open stores, like Whole Foods, but in the more affluent neighborhoods. They should open one in poor neighborhoods,” she said.

Dr. Contreras says she spends much of her time educating her patients about good nutrition. She asks them to keep a food diary and analyzes the results at each visit.

“I look at what they eat, and I try to see how I can use this information in a good way. I advise them to use frozen foods, and avoid canned, because it is a lot healthier. I am pragmatic, because I know that if I tell my patients to eat salmon, for example, they aren’t going to be able to afford it, if they can even access it.”

She also informs them about relatively healthy fast-food choices.

“I tell them to order 100% fruit juice, water, or milk when they go to McDonalds or other fast-food places. So I think this study is very important. Food insecurity is a very important component of cardiovascular disease, and unfortunately, minority communities are where this occurs.”

Dr. Brandt and Dr. Contreras report no relevant financial relationships.

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

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A growing number of Americans with cardiovascular disease (CVD) have limited or uncertain access to food, results of a new study suggest.

An analysis of data from the National Health and Nutrition Examination Survey (NHANES) representing more than 300 million American adults found that, overall, 38.1% of people with cardiovascular disease were food insecure in 2017-2019.

©Amanda Grandfield/iStockphoto.com


Twenty years earlier, that rate was 16.3%.

“What really stood out from our study is how frequent food insecurity is among people with cardiovascular disease, compared to those without cardiovascular disease,” lead author, Eric J. Brandt, MD, MHS, a cardiologist at the University of Michigan Health Frankel Cardiovascular Center, Ann Arbor, said in an interview.

“We believe that the relationship between food insecurity and cardiovascular disease is bidirectional. Food insecurity puts people at risk for cardiovascular disease, which then makes them vulnerable to events like myocardial infarction or stroke, which in turn may make them less able to work, thereby worsening their financial situation and increasing their vulnerability to food insecurity,” Dr. Brandt said.

For the analysis, Dr. Brandt and his team used an analytic sample of 57,517 adults to represent 312 million non-institutionalized adults in the United States.

Overall, 6,770 individuals (11.8%) in the analytic sample reported food insecurity.

Food insecurity was more prevalent among Hispanic people (n = 1,938, 24.0%) and non-Hispanic Black people (n = 1,202, 18.2%), compared with non-Hispanic Asian people (n = 100, 8.0%), and non-Hispanic White people (n = 3,221, 8.5%).

The prevalence of cardiovascular disease in the sample was 7.9% (n = 4,527).

Hypertension was the most prevalent CVD risk factor, reported in 49.6% of the sample. This was followed by obesity in 33.2%, dyslipidemia in 30.8%, and diabetes in 11.2%.

The findings were published online  in JAMA Cardiology.

“All cardiovascular disease and cardiometabolic diseases except coronary artery disease were more prevalent among those with food insecurity,” Dr. Brandt noted.

“The results of our study are especially timely, as the White House just hosted its first conference on Hunger, Nutrition, and Health in over 50 years. Food insecurity is a focus of that conference. In the last few years, especially in relation to the pandemic, there has been expansion of some of the federal programs to prevent food insecurity. I would like to see a continued effort to solve this,” he said.

Dr. Brandt added that he hopes clinicians will be more cognizant of the problem of food insecurity and other social determinants of health when they see their patients.

“If someone is not going to be able to afford the food on their table, they’re probably not going to pay for their medications. Recognizing these social determinants in the clinical setting and helping our patients access local resources may address the underlying factors contributing to heart disease,” he said.
 

Uphill battle

Johanna Contreras, MD, advanced heart failure and transplant cardiologist at the Mount Sinai Hospital, New York, treats food insecure cardiovascular patients in her practice and tries to educate them about good nutrition. But it is an uphill battle.

“A lot of my patients live in the South Bronx. They have hypertension, hypercholesterolemia, and there are no grocery stores where they can buy fresh vegetables. I talk to them about eating healthy. They tell me it’s impossible. The stores only have pre-packaged foods. So even in the South Bronx, even though it is in New York, it is very hard to get fresh food. And when it is available, it is very expensive,” Dr. Contreras told this news organization.

“Fresh pineapples can cost $8. A fast-food burger costs $3. So that is what they buy: It’s what they can afford. Even the store managers don’t want to stock fresh produce because it can spoil. They open stores, like Whole Foods, but in the more affluent neighborhoods. They should open one in poor neighborhoods,” she said.

Dr. Contreras says she spends much of her time educating her patients about good nutrition. She asks them to keep a food diary and analyzes the results at each visit.

“I look at what they eat, and I try to see how I can use this information in a good way. I advise them to use frozen foods, and avoid canned, because it is a lot healthier. I am pragmatic, because I know that if I tell my patients to eat salmon, for example, they aren’t going to be able to afford it, if they can even access it.”

She also informs them about relatively healthy fast-food choices.

“I tell them to order 100% fruit juice, water, or milk when they go to McDonalds or other fast-food places. So I think this study is very important. Food insecurity is a very important component of cardiovascular disease, and unfortunately, minority communities are where this occurs.”

Dr. Brandt and Dr. Contreras report no relevant financial relationships.

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

A growing number of Americans with cardiovascular disease (CVD) have limited or uncertain access to food, results of a new study suggest.

An analysis of data from the National Health and Nutrition Examination Survey (NHANES) representing more than 300 million American adults found that, overall, 38.1% of people with cardiovascular disease were food insecure in 2017-2019.

©Amanda Grandfield/iStockphoto.com


Twenty years earlier, that rate was 16.3%.

“What really stood out from our study is how frequent food insecurity is among people with cardiovascular disease, compared to those without cardiovascular disease,” lead author, Eric J. Brandt, MD, MHS, a cardiologist at the University of Michigan Health Frankel Cardiovascular Center, Ann Arbor, said in an interview.

“We believe that the relationship between food insecurity and cardiovascular disease is bidirectional. Food insecurity puts people at risk for cardiovascular disease, which then makes them vulnerable to events like myocardial infarction or stroke, which in turn may make them less able to work, thereby worsening their financial situation and increasing their vulnerability to food insecurity,” Dr. Brandt said.

For the analysis, Dr. Brandt and his team used an analytic sample of 57,517 adults to represent 312 million non-institutionalized adults in the United States.

Overall, 6,770 individuals (11.8%) in the analytic sample reported food insecurity.

Food insecurity was more prevalent among Hispanic people (n = 1,938, 24.0%) and non-Hispanic Black people (n = 1,202, 18.2%), compared with non-Hispanic Asian people (n = 100, 8.0%), and non-Hispanic White people (n = 3,221, 8.5%).

The prevalence of cardiovascular disease in the sample was 7.9% (n = 4,527).

Hypertension was the most prevalent CVD risk factor, reported in 49.6% of the sample. This was followed by obesity in 33.2%, dyslipidemia in 30.8%, and diabetes in 11.2%.

The findings were published online  in JAMA Cardiology.

“All cardiovascular disease and cardiometabolic diseases except coronary artery disease were more prevalent among those with food insecurity,” Dr. Brandt noted.

“The results of our study are especially timely, as the White House just hosted its first conference on Hunger, Nutrition, and Health in over 50 years. Food insecurity is a focus of that conference. In the last few years, especially in relation to the pandemic, there has been expansion of some of the federal programs to prevent food insecurity. I would like to see a continued effort to solve this,” he said.

Dr. Brandt added that he hopes clinicians will be more cognizant of the problem of food insecurity and other social determinants of health when they see their patients.

“If someone is not going to be able to afford the food on their table, they’re probably not going to pay for their medications. Recognizing these social determinants in the clinical setting and helping our patients access local resources may address the underlying factors contributing to heart disease,” he said.
 

Uphill battle

Johanna Contreras, MD, advanced heart failure and transplant cardiologist at the Mount Sinai Hospital, New York, treats food insecure cardiovascular patients in her practice and tries to educate them about good nutrition. But it is an uphill battle.

“A lot of my patients live in the South Bronx. They have hypertension, hypercholesterolemia, and there are no grocery stores where they can buy fresh vegetables. I talk to them about eating healthy. They tell me it’s impossible. The stores only have pre-packaged foods. So even in the South Bronx, even though it is in New York, it is very hard to get fresh food. And when it is available, it is very expensive,” Dr. Contreras told this news organization.

“Fresh pineapples can cost $8. A fast-food burger costs $3. So that is what they buy: It’s what they can afford. Even the store managers don’t want to stock fresh produce because it can spoil. They open stores, like Whole Foods, but in the more affluent neighborhoods. They should open one in poor neighborhoods,” she said.

Dr. Contreras says she spends much of her time educating her patients about good nutrition. She asks them to keep a food diary and analyzes the results at each visit.

“I look at what they eat, and I try to see how I can use this information in a good way. I advise them to use frozen foods, and avoid canned, because it is a lot healthier. I am pragmatic, because I know that if I tell my patients to eat salmon, for example, they aren’t going to be able to afford it, if they can even access it.”

She also informs them about relatively healthy fast-food choices.

“I tell them to order 100% fruit juice, water, or milk when they go to McDonalds or other fast-food places. So I think this study is very important. Food insecurity is a very important component of cardiovascular disease, and unfortunately, minority communities are where this occurs.”

Dr. Brandt and Dr. Contreras report no relevant financial relationships.

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

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Med groups urge feds to protect physicians from anti-trans violence

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Several leading medical groups on Oct. 3 called on U.S. Attorney General Merrick Garland to investigate and prosecute those responsible for a recent spate of threats and attacks against hospitals and physicians who are providing gender-affirming care.

In an Oct. 3 letter, the American Academy of Pediatrics (AAP), the American Medical Association (AMA), and the Children’s Hospital Association detailed the risk posed by these threats to physicians, patients, and the federally protected right to health care.

The letter comes during a campaign of intimidation and misinformation that has disrupted gender-related care in SeattleAkron, OhioNashville, Tenn., and Boston in the past few weeks. Hospitals across the country and their ambulatory sites have been forced to substantially increase protection, and “some providers have needed 24/7 security,” according to the letter.

Not only do the threats bully physicians providing gender-affirming care and the patients who receive that care, but “they have also disrupted many other services to families seeking care,” the letter claims.

According to STAT, many hospitals that provide gender-affirming care have responded to the threats by removing information about the treatment from their websites.

At one hospital, a new mother was separated from her preterm infant because the facility’s neonatal intensive care unit was locked down as the result of a bomb threat. (It’s not clear whether that incident is the same as a similar threat that led to the arrest of a 37-year-old Massachusetts woman, who is facing criminal charges in the episode.)

“The attacks are rooted in an intentional campaign of disinformation” by high-profile social media users, according to the letter. The medical organizations have also called on major tech companies, including TikTok, Twitter, and Meta, to do more to prevent the coordination of disinformation campaigns and violence against health care providers and patients.

“We now urge your office to take swift action to investigate and prosecute all organizations, individuals, and entities responsible,” the letter states.

“We cannot stand by as threats of violence against our members and their patients proliferate with little consequence. We call on the Department of Justice to investigate these attacks and social media platforms to reduce the spread of the misinformation enabling them,” AAP President Moira Szilagyi, MD, PhD, FAAP, said in a press release.

In addition to physical threats at their workplace, providers face threats on their personal social media accounts and harassment via phone and email. The letter notes that these unchecked attacks are coming after health care workers spent 3 years working on the front lines of a pandemic.

“Individuals in all workplaces have the right to a safe environment, out of harm’s way and free of intimidation or reprisal,” AMA President Jack Resneck Jr, MD, said in a statement. “The AMA will continue to work with federal, state, and local law enforcement officials to develop and implement strategies that protect hard-working, law-abiding physicians and other health care workers from senseless acts of violence, abuse, and intimidation.”

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

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Several leading medical groups on Oct. 3 called on U.S. Attorney General Merrick Garland to investigate and prosecute those responsible for a recent spate of threats and attacks against hospitals and physicians who are providing gender-affirming care.

In an Oct. 3 letter, the American Academy of Pediatrics (AAP), the American Medical Association (AMA), and the Children’s Hospital Association detailed the risk posed by these threats to physicians, patients, and the federally protected right to health care.

The letter comes during a campaign of intimidation and misinformation that has disrupted gender-related care in SeattleAkron, OhioNashville, Tenn., and Boston in the past few weeks. Hospitals across the country and their ambulatory sites have been forced to substantially increase protection, and “some providers have needed 24/7 security,” according to the letter.

Not only do the threats bully physicians providing gender-affirming care and the patients who receive that care, but “they have also disrupted many other services to families seeking care,” the letter claims.

According to STAT, many hospitals that provide gender-affirming care have responded to the threats by removing information about the treatment from their websites.

At one hospital, a new mother was separated from her preterm infant because the facility’s neonatal intensive care unit was locked down as the result of a bomb threat. (It’s not clear whether that incident is the same as a similar threat that led to the arrest of a 37-year-old Massachusetts woman, who is facing criminal charges in the episode.)

“The attacks are rooted in an intentional campaign of disinformation” by high-profile social media users, according to the letter. The medical organizations have also called on major tech companies, including TikTok, Twitter, and Meta, to do more to prevent the coordination of disinformation campaigns and violence against health care providers and patients.

“We now urge your office to take swift action to investigate and prosecute all organizations, individuals, and entities responsible,” the letter states.

“We cannot stand by as threats of violence against our members and their patients proliferate with little consequence. We call on the Department of Justice to investigate these attacks and social media platforms to reduce the spread of the misinformation enabling them,” AAP President Moira Szilagyi, MD, PhD, FAAP, said in a press release.

In addition to physical threats at their workplace, providers face threats on their personal social media accounts and harassment via phone and email. The letter notes that these unchecked attacks are coming after health care workers spent 3 years working on the front lines of a pandemic.

“Individuals in all workplaces have the right to a safe environment, out of harm’s way and free of intimidation or reprisal,” AMA President Jack Resneck Jr, MD, said in a statement. “The AMA will continue to work with federal, state, and local law enforcement officials to develop and implement strategies that protect hard-working, law-abiding physicians and other health care workers from senseless acts of violence, abuse, and intimidation.”

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

Several leading medical groups on Oct. 3 called on U.S. Attorney General Merrick Garland to investigate and prosecute those responsible for a recent spate of threats and attacks against hospitals and physicians who are providing gender-affirming care.

In an Oct. 3 letter, the American Academy of Pediatrics (AAP), the American Medical Association (AMA), and the Children’s Hospital Association detailed the risk posed by these threats to physicians, patients, and the federally protected right to health care.

The letter comes during a campaign of intimidation and misinformation that has disrupted gender-related care in SeattleAkron, OhioNashville, Tenn., and Boston in the past few weeks. Hospitals across the country and their ambulatory sites have been forced to substantially increase protection, and “some providers have needed 24/7 security,” according to the letter.

Not only do the threats bully physicians providing gender-affirming care and the patients who receive that care, but “they have also disrupted many other services to families seeking care,” the letter claims.

According to STAT, many hospitals that provide gender-affirming care have responded to the threats by removing information about the treatment from their websites.

At one hospital, a new mother was separated from her preterm infant because the facility’s neonatal intensive care unit was locked down as the result of a bomb threat. (It’s not clear whether that incident is the same as a similar threat that led to the arrest of a 37-year-old Massachusetts woman, who is facing criminal charges in the episode.)

“The attacks are rooted in an intentional campaign of disinformation” by high-profile social media users, according to the letter. The medical organizations have also called on major tech companies, including TikTok, Twitter, and Meta, to do more to prevent the coordination of disinformation campaigns and violence against health care providers and patients.

“We now urge your office to take swift action to investigate and prosecute all organizations, individuals, and entities responsible,” the letter states.

“We cannot stand by as threats of violence against our members and their patients proliferate with little consequence. We call on the Department of Justice to investigate these attacks and social media platforms to reduce the spread of the misinformation enabling them,” AAP President Moira Szilagyi, MD, PhD, FAAP, said in a press release.

In addition to physical threats at their workplace, providers face threats on their personal social media accounts and harassment via phone and email. The letter notes that these unchecked attacks are coming after health care workers spent 3 years working on the front lines of a pandemic.

“Individuals in all workplaces have the right to a safe environment, out of harm’s way and free of intimidation or reprisal,” AMA President Jack Resneck Jr, MD, said in a statement. “The AMA will continue to work with federal, state, and local law enforcement officials to develop and implement strategies that protect hard-working, law-abiding physicians and other health care workers from senseless acts of violence, abuse, and intimidation.”

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

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Bariatric surgery may up risk for epilepsy

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Thu, 12/15/2022 - 15:36

Bariatric surgery may raise the risk of developing epilepsy, new research suggests. Analyzing health records, investigators compared almost 17,000 patients who had undergone bariatric surgery with more than 620,000 individuals with obesity who had not undergone the surgery.

During a minimum 3-year follow-up period, the surgery group had a 45% higher risk of developing epilepsy than the nonsurgery group. Moreover, patients who had a stroke after their bariatric surgery were 14 times more likely to develop epilepsy than those who did not have a stroke.

“When considering having bariatric surgery, people should talk to their doctors about the benefits and risks,” senior investigator Jorge Burneo, MD, professor of neurology, biostatistics, and epidemiology and endowed chair in epilepsy at Western University, London, told this news organization.

“While there are many health benefits of weight loss, our findings suggest that epilepsy is a long-term risk of bariatric surgery for weight loss,” Dr. Burneo said.

The findings were published online in Neurology.
 

Unrecognized risk factor?

Bariatric surgery has become more common as global rates of obesity have increased. The surgery has been shown to reduce the risk for serious obesity-related conditions, the researchers note.

However, “in addition to the positive outcomes of bariatric surgery, several long-term neurological complications have also been identified,” they write.

One previous study reported increased epilepsy risk following gastric bypass. Those findings “suggest that bariatric surgery may be an unrecognized epilepsy risk factor; however, this possible association has not been thoroughly explored,” write the investigators.

Dr. Burneo said he conducted the study because he has seen patients with epilepsy in his clinic who were “without risk factors, with normal MRIs, who shared the history of having bariatric surgery before the development of epilepsy.”

The researchers’ primary objective was to “assess whether epilepsy risk is elevated following bariatric surgery for weight loss relative to a nonsurgical cohort of patients who are obese,” he noted.

The study used linked administrative health databases in Ontario, Canada. Patients were accrued from July 1, 2010, to Dec. 31, 2016, and were followed until Dec. 31, 2019. The analysis included 639,472 participants, 2.7% of whom had undergone bariatric surgery.

The “exposed” cohort consisted of all Ontario residents aged 18 years or older who had undergone bariatric surgery during the 6-year period (n = 16,958; 65.1% women; mean age, 47.4 years), while the “unexposed” cohort consisted of patients hospitalized with a diagnosis of obesity who had not undergone bariatric surgery (n = 622,514; 62.8% women; mean age, 47.6 years).

Patients with a history of seizures, epilepsy, epilepsy risk factors, prior brain surgery, psychiatric disorders, or drug or alcohol abuse/dependence were excluded from the analysis.

The researchers collected data on patients’ sociodemographic characteristics at the index date, as well as Charlson Comorbidity Index scores during the 2 years prior to index, and data regarding several specific comorbidities, such as diabetes mellitus, hypertension, sleep apnea, depression/anxiety, and cardiovascular factors.

The exposed and unexposed cohorts were followed for a median period of 5.8 and 5.9 person-years, respectively.
 

‘Unclear’ mechanisms

Before weighting, 0.4% of participants in the exposed cohort (n = 73) developed epilepsy, versus 0.2% of participants in the unexposed cohort (n = 1,260) by the end of the follow-up period.

In the weighted cohorts, there were 50.1 epilepsy diagnoses per 100,000 person-years, versus 34.1 per 100,000 person-years (rate difference, 16 per 100,000 person-years).

The multivariable analysis of the weighted cohort showed the hazard ratio for epilepsy cases that were associated with bariatric surgery was 1.45 (95% confidence interval, 1.35-1.56), after adjusting for sleep apnea and including stroke as a time-varying covariate.

Having a stroke during the follow-up period increased epilepsy 14-fold in the exposed cohort (HR, 14.03; 95% CI, 4.25-46.25).

The investigators note that they were unable to measure obesity status or body mass index throughout the study and that some obesity-related comorbidities “may affect epilepsy risk.”

In addition, Dr. Burneo reported that the study did not investigate potential causes and mechanisms of the association between bariatric surgery and epilepsy risk.

Hypotheses “include potential nutritional deficiencies, receipt of general anesthesia, or other unclear causes,” he said.

“Future research should investigate epilepsy as a potential long-term complication of bariatric surgery, exploring the possible effects of this procedure,” Dr. Burneo added.
 

Risk-benefit discussion

In a comment, Jacqueline French, MD, professor of neurology at NYU Grossman School of Medicine, and director of NYU’s Epilepsy Study Consortium, said she was “not 100% surprised by the findings” because she has seen in her clinical practice “a number of patients who developed epilepsy after bariatric surgery or had a history of bariatric surgery at the time they developed epilepsy.”

On the other hand, she has also seen patients who did not have a history of bariatric surgery and who developed epilepsy.

“I’m unable to tell if there is an association, although I’ve had it at the back of my head as a thought and wondered about it,” said Dr. French, who is also the chief medical and innovation officer at the Epilepsy Foundation. She was not involved with the study.

She noted that possible mechanisms underlying the association are that gastric bypass surgery leads to a “significant alteration” in nutrient absorption. Moreover, “we now know that the microbiome is associated with epilepsy” and that changes occur in the gut microbiome after bariatric surgery, Dr. French said.

There are two take-home messages for practicing clinicians, she added.

“Although the risk [of developing epilepsy] is very low, it should be presented as part of the risks and benefits to patients considering bariatric surgery,” she said.

“It’s equally important to follow up on the potential differences in these patients who go on to develop epilepsy following bariatric surgery,” said Dr. French. “Is there a certain metabolic profile or some nutrient previously absorbed that now is not absorbed that might predispose people to risk?”

This would be “enormously important to know because it might not just pertain to these people but to a whole other cohort of people who develop epilepsy,” Dr. French concluded.

The study was funded by the Ontario Ministry of Health and Ministry of Long-Term Care and by the Jack Cowin Endowed Chair in Epilepsy Research at Western University. Dr. Burneo holds the Jack Cowin Endowed Chair in Epilepsy Research at Western University. The other investigators and Dr. French have reported no relevant financial relationships.

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

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Bariatric surgery may raise the risk of developing epilepsy, new research suggests. Analyzing health records, investigators compared almost 17,000 patients who had undergone bariatric surgery with more than 620,000 individuals with obesity who had not undergone the surgery.

During a minimum 3-year follow-up period, the surgery group had a 45% higher risk of developing epilepsy than the nonsurgery group. Moreover, patients who had a stroke after their bariatric surgery were 14 times more likely to develop epilepsy than those who did not have a stroke.

“When considering having bariatric surgery, people should talk to their doctors about the benefits and risks,” senior investigator Jorge Burneo, MD, professor of neurology, biostatistics, and epidemiology and endowed chair in epilepsy at Western University, London, told this news organization.

“While there are many health benefits of weight loss, our findings suggest that epilepsy is a long-term risk of bariatric surgery for weight loss,” Dr. Burneo said.

The findings were published online in Neurology.
 

Unrecognized risk factor?

Bariatric surgery has become more common as global rates of obesity have increased. The surgery has been shown to reduce the risk for serious obesity-related conditions, the researchers note.

However, “in addition to the positive outcomes of bariatric surgery, several long-term neurological complications have also been identified,” they write.

One previous study reported increased epilepsy risk following gastric bypass. Those findings “suggest that bariatric surgery may be an unrecognized epilepsy risk factor; however, this possible association has not been thoroughly explored,” write the investigators.

Dr. Burneo said he conducted the study because he has seen patients with epilepsy in his clinic who were “without risk factors, with normal MRIs, who shared the history of having bariatric surgery before the development of epilepsy.”

The researchers’ primary objective was to “assess whether epilepsy risk is elevated following bariatric surgery for weight loss relative to a nonsurgical cohort of patients who are obese,” he noted.

The study used linked administrative health databases in Ontario, Canada. Patients were accrued from July 1, 2010, to Dec. 31, 2016, and were followed until Dec. 31, 2019. The analysis included 639,472 participants, 2.7% of whom had undergone bariatric surgery.

The “exposed” cohort consisted of all Ontario residents aged 18 years or older who had undergone bariatric surgery during the 6-year period (n = 16,958; 65.1% women; mean age, 47.4 years), while the “unexposed” cohort consisted of patients hospitalized with a diagnosis of obesity who had not undergone bariatric surgery (n = 622,514; 62.8% women; mean age, 47.6 years).

Patients with a history of seizures, epilepsy, epilepsy risk factors, prior brain surgery, psychiatric disorders, or drug or alcohol abuse/dependence were excluded from the analysis.

The researchers collected data on patients’ sociodemographic characteristics at the index date, as well as Charlson Comorbidity Index scores during the 2 years prior to index, and data regarding several specific comorbidities, such as diabetes mellitus, hypertension, sleep apnea, depression/anxiety, and cardiovascular factors.

The exposed and unexposed cohorts were followed for a median period of 5.8 and 5.9 person-years, respectively.
 

‘Unclear’ mechanisms

Before weighting, 0.4% of participants in the exposed cohort (n = 73) developed epilepsy, versus 0.2% of participants in the unexposed cohort (n = 1,260) by the end of the follow-up period.

In the weighted cohorts, there were 50.1 epilepsy diagnoses per 100,000 person-years, versus 34.1 per 100,000 person-years (rate difference, 16 per 100,000 person-years).

The multivariable analysis of the weighted cohort showed the hazard ratio for epilepsy cases that were associated with bariatric surgery was 1.45 (95% confidence interval, 1.35-1.56), after adjusting for sleep apnea and including stroke as a time-varying covariate.

Having a stroke during the follow-up period increased epilepsy 14-fold in the exposed cohort (HR, 14.03; 95% CI, 4.25-46.25).

The investigators note that they were unable to measure obesity status or body mass index throughout the study and that some obesity-related comorbidities “may affect epilepsy risk.”

In addition, Dr. Burneo reported that the study did not investigate potential causes and mechanisms of the association between bariatric surgery and epilepsy risk.

Hypotheses “include potential nutritional deficiencies, receipt of general anesthesia, or other unclear causes,” he said.

“Future research should investigate epilepsy as a potential long-term complication of bariatric surgery, exploring the possible effects of this procedure,” Dr. Burneo added.
 

Risk-benefit discussion

In a comment, Jacqueline French, MD, professor of neurology at NYU Grossman School of Medicine, and director of NYU’s Epilepsy Study Consortium, said she was “not 100% surprised by the findings” because she has seen in her clinical practice “a number of patients who developed epilepsy after bariatric surgery or had a history of bariatric surgery at the time they developed epilepsy.”

On the other hand, she has also seen patients who did not have a history of bariatric surgery and who developed epilepsy.

“I’m unable to tell if there is an association, although I’ve had it at the back of my head as a thought and wondered about it,” said Dr. French, who is also the chief medical and innovation officer at the Epilepsy Foundation. She was not involved with the study.

She noted that possible mechanisms underlying the association are that gastric bypass surgery leads to a “significant alteration” in nutrient absorption. Moreover, “we now know that the microbiome is associated with epilepsy” and that changes occur in the gut microbiome after bariatric surgery, Dr. French said.

There are two take-home messages for practicing clinicians, she added.

“Although the risk [of developing epilepsy] is very low, it should be presented as part of the risks and benefits to patients considering bariatric surgery,” she said.

“It’s equally important to follow up on the potential differences in these patients who go on to develop epilepsy following bariatric surgery,” said Dr. French. “Is there a certain metabolic profile or some nutrient previously absorbed that now is not absorbed that might predispose people to risk?”

This would be “enormously important to know because it might not just pertain to these people but to a whole other cohort of people who develop epilepsy,” Dr. French concluded.

The study was funded by the Ontario Ministry of Health and Ministry of Long-Term Care and by the Jack Cowin Endowed Chair in Epilepsy Research at Western University. Dr. Burneo holds the Jack Cowin Endowed Chair in Epilepsy Research at Western University. The other investigators and Dr. French have reported no relevant financial relationships.

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

Bariatric surgery may raise the risk of developing epilepsy, new research suggests. Analyzing health records, investigators compared almost 17,000 patients who had undergone bariatric surgery with more than 620,000 individuals with obesity who had not undergone the surgery.

During a minimum 3-year follow-up period, the surgery group had a 45% higher risk of developing epilepsy than the nonsurgery group. Moreover, patients who had a stroke after their bariatric surgery were 14 times more likely to develop epilepsy than those who did not have a stroke.

“When considering having bariatric surgery, people should talk to their doctors about the benefits and risks,” senior investigator Jorge Burneo, MD, professor of neurology, biostatistics, and epidemiology and endowed chair in epilepsy at Western University, London, told this news organization.

“While there are many health benefits of weight loss, our findings suggest that epilepsy is a long-term risk of bariatric surgery for weight loss,” Dr. Burneo said.

The findings were published online in Neurology.
 

Unrecognized risk factor?

Bariatric surgery has become more common as global rates of obesity have increased. The surgery has been shown to reduce the risk for serious obesity-related conditions, the researchers note.

However, “in addition to the positive outcomes of bariatric surgery, several long-term neurological complications have also been identified,” they write.

One previous study reported increased epilepsy risk following gastric bypass. Those findings “suggest that bariatric surgery may be an unrecognized epilepsy risk factor; however, this possible association has not been thoroughly explored,” write the investigators.

Dr. Burneo said he conducted the study because he has seen patients with epilepsy in his clinic who were “without risk factors, with normal MRIs, who shared the history of having bariatric surgery before the development of epilepsy.”

The researchers’ primary objective was to “assess whether epilepsy risk is elevated following bariatric surgery for weight loss relative to a nonsurgical cohort of patients who are obese,” he noted.

The study used linked administrative health databases in Ontario, Canada. Patients were accrued from July 1, 2010, to Dec. 31, 2016, and were followed until Dec. 31, 2019. The analysis included 639,472 participants, 2.7% of whom had undergone bariatric surgery.

The “exposed” cohort consisted of all Ontario residents aged 18 years or older who had undergone bariatric surgery during the 6-year period (n = 16,958; 65.1% women; mean age, 47.4 years), while the “unexposed” cohort consisted of patients hospitalized with a diagnosis of obesity who had not undergone bariatric surgery (n = 622,514; 62.8% women; mean age, 47.6 years).

Patients with a history of seizures, epilepsy, epilepsy risk factors, prior brain surgery, psychiatric disorders, or drug or alcohol abuse/dependence were excluded from the analysis.

The researchers collected data on patients’ sociodemographic characteristics at the index date, as well as Charlson Comorbidity Index scores during the 2 years prior to index, and data regarding several specific comorbidities, such as diabetes mellitus, hypertension, sleep apnea, depression/anxiety, and cardiovascular factors.

The exposed and unexposed cohorts were followed for a median period of 5.8 and 5.9 person-years, respectively.
 

‘Unclear’ mechanisms

Before weighting, 0.4% of participants in the exposed cohort (n = 73) developed epilepsy, versus 0.2% of participants in the unexposed cohort (n = 1,260) by the end of the follow-up period.

In the weighted cohorts, there were 50.1 epilepsy diagnoses per 100,000 person-years, versus 34.1 per 100,000 person-years (rate difference, 16 per 100,000 person-years).

The multivariable analysis of the weighted cohort showed the hazard ratio for epilepsy cases that were associated with bariatric surgery was 1.45 (95% confidence interval, 1.35-1.56), after adjusting for sleep apnea and including stroke as a time-varying covariate.

Having a stroke during the follow-up period increased epilepsy 14-fold in the exposed cohort (HR, 14.03; 95% CI, 4.25-46.25).

The investigators note that they were unable to measure obesity status or body mass index throughout the study and that some obesity-related comorbidities “may affect epilepsy risk.”

In addition, Dr. Burneo reported that the study did not investigate potential causes and mechanisms of the association between bariatric surgery and epilepsy risk.

Hypotheses “include potential nutritional deficiencies, receipt of general anesthesia, or other unclear causes,” he said.

“Future research should investigate epilepsy as a potential long-term complication of bariatric surgery, exploring the possible effects of this procedure,” Dr. Burneo added.
 

Risk-benefit discussion

In a comment, Jacqueline French, MD, professor of neurology at NYU Grossman School of Medicine, and director of NYU’s Epilepsy Study Consortium, said she was “not 100% surprised by the findings” because she has seen in her clinical practice “a number of patients who developed epilepsy after bariatric surgery or had a history of bariatric surgery at the time they developed epilepsy.”

On the other hand, she has also seen patients who did not have a history of bariatric surgery and who developed epilepsy.

“I’m unable to tell if there is an association, although I’ve had it at the back of my head as a thought and wondered about it,” said Dr. French, who is also the chief medical and innovation officer at the Epilepsy Foundation. She was not involved with the study.

She noted that possible mechanisms underlying the association are that gastric bypass surgery leads to a “significant alteration” in nutrient absorption. Moreover, “we now know that the microbiome is associated with epilepsy” and that changes occur in the gut microbiome after bariatric surgery, Dr. French said.

There are two take-home messages for practicing clinicians, she added.

“Although the risk [of developing epilepsy] is very low, it should be presented as part of the risks and benefits to patients considering bariatric surgery,” she said.

“It’s equally important to follow up on the potential differences in these patients who go on to develop epilepsy following bariatric surgery,” said Dr. French. “Is there a certain metabolic profile or some nutrient previously absorbed that now is not absorbed that might predispose people to risk?”

This would be “enormously important to know because it might not just pertain to these people but to a whole other cohort of people who develop epilepsy,” Dr. French concluded.

The study was funded by the Ontario Ministry of Health and Ministry of Long-Term Care and by the Jack Cowin Endowed Chair in Epilepsy Research at Western University. Dr. Burneo holds the Jack Cowin Endowed Chair in Epilepsy Research at Western University. The other investigators and Dr. French have reported no relevant financial relationships.

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

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Balanced fat intake links with less type 2 diabetes

Article Type
Changed
Thu, 12/15/2022 - 14:24

Researchers published the study covered in this summary on Preprints with The Lancet as a preprint that has not yet been peer reviewed.

Key takeaways

  • Adults in China who consumed a “balanced,” moderate ratio (middle three quintiles) of animal-to-vegetable cooking oil had a lower rate of developing type 2 diabetes during a median follow-up of 8.6 years, compared with those who consumed the lowest ratio (first quintile), after multivariable adjustment using prospectively collected data.
  • The results also indicate that increasing animal cooking oil (such as lard, tallow, or butter) and vegetable cooking oil (such as peanut or soybean oil) consumption were each positively associated with a higher rate of developing type 2 diabetes.
  • Those who consumed the highest ratio (fifth quintile) of animal-to-vegetable cooking oil had a nonsignificant difference in their rate of developing type 2 diabetes, compared with those in the first quintile.

Why this matters

  • The findings suggest that consuming a diet with a “balanced” moderate intake of animal and vegetable oil might lower the risk of type 2 diabetes, which would reduce disease burden and health care expenditures.
  • The results imply that using a single source of cooking oil, either animal or vegetable, contributes to the incidence of type 2 diabetes.
  • This is the first large epidemiological study showing a relationship between the ratio of animal- and vegetable-derived fats in people’s diets and their risk for incident type 2 diabetes.

Study design

  • The researchers used data collected prospectively starting in 2010-2012 from 7,274 adult residents of Guizhou province, China, with follow-up assessment in 2020 after a median of 8.6 years.
  • At baseline, participants underwent an oral glucose tolerance test and provided information on demographics, family medical history, and personal medical history, including whether they had been diagnosed with type 2 diabetes or were taking antihyperglycemic medications. The study did not include anyone with a history of diabetes.
  • Data on intake of animal and vegetable cooking oil came from a dietary questionnaire.
  • The authors calculated hazard ratios for development of type 2 diabetes after adjusting for multiple potential confounders.

Key results

  • The study cohort averaged 44 years old, and 53% were women.
  • During a median follow-up of 8.6 years, 747 people developed type 2 diabetes.
  • Compared with those who had the lowest intake of animal cooking oil (first quintile), those with the highest intake (fifth quintile) had a significant 28% increased relative rate for developing type 2 diabetes after adjustment for several potential confounders.
  • Compared with those with the lowest intake of vegetable cooking oil, those with the highest intake had a significant 56% increased rate of developing type 2 diabetes after adjustment.
  • Compared with adults with the lowest animal-to-vegetable cooking oil ratio (first quintile), those in the second, third, and fourth quintiles for this ratio had significantly lower adjusted relative rates of developing type 2 diabetes, with adjusted hazard ratios of 0.79, 0.65, and 0.68, respectively. Those in the highest quintile (fifth quintile) did not have a significantly different risk, compared with the first quintile.
  • The protective effect of a balanced ratio of animal-to-vegetable cooking oils was stronger in people who lived in rural districts and in those who had obesity.
 

 

Limitations

  • The dietary information came from participants’ self-reports, which may have produced biased data.
  • The study only included information about animal and vegetable cooking oil consumed at home.
  • There may have been residual confounding from variables not included in the study.
  • The time of diagnosis of type 2 diabetes may have been inaccurate because follow-up occurred only once. 
  • The study may have underestimated the incidence of type 2 diabetes because of a lack of information about hemoglobin A1c levels at follow-up.

Disclosures

  • The study did not receive commercial funding.
  • The authors reported no financial disclosures.

This is a summary of a preprint article “The consumption ratio of animal cooking oil to vegetable cooking oil and reduced risk of type 2 diabetes mellitus: A prospective cohort study in Southwest China” written by researchers primarily from Zunyi Medical University, China, on Preprints with The Lancet. This study has not yet been peer reviewed. The full text of the study can be found on papers.ssrn.com.

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

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Researchers published the study covered in this summary on Preprints with The Lancet as a preprint that has not yet been peer reviewed.

Key takeaways

  • Adults in China who consumed a “balanced,” moderate ratio (middle three quintiles) of animal-to-vegetable cooking oil had a lower rate of developing type 2 diabetes during a median follow-up of 8.6 years, compared with those who consumed the lowest ratio (first quintile), after multivariable adjustment using prospectively collected data.
  • The results also indicate that increasing animal cooking oil (such as lard, tallow, or butter) and vegetable cooking oil (such as peanut or soybean oil) consumption were each positively associated with a higher rate of developing type 2 diabetes.
  • Those who consumed the highest ratio (fifth quintile) of animal-to-vegetable cooking oil had a nonsignificant difference in their rate of developing type 2 diabetes, compared with those in the first quintile.

Why this matters

  • The findings suggest that consuming a diet with a “balanced” moderate intake of animal and vegetable oil might lower the risk of type 2 diabetes, which would reduce disease burden and health care expenditures.
  • The results imply that using a single source of cooking oil, either animal or vegetable, contributes to the incidence of type 2 diabetes.
  • This is the first large epidemiological study showing a relationship between the ratio of animal- and vegetable-derived fats in people’s diets and their risk for incident type 2 diabetes.

Study design

  • The researchers used data collected prospectively starting in 2010-2012 from 7,274 adult residents of Guizhou province, China, with follow-up assessment in 2020 after a median of 8.6 years.
  • At baseline, participants underwent an oral glucose tolerance test and provided information on demographics, family medical history, and personal medical history, including whether they had been diagnosed with type 2 diabetes or were taking antihyperglycemic medications. The study did not include anyone with a history of diabetes.
  • Data on intake of animal and vegetable cooking oil came from a dietary questionnaire.
  • The authors calculated hazard ratios for development of type 2 diabetes after adjusting for multiple potential confounders.

Key results

  • The study cohort averaged 44 years old, and 53% were women.
  • During a median follow-up of 8.6 years, 747 people developed type 2 diabetes.
  • Compared with those who had the lowest intake of animal cooking oil (first quintile), those with the highest intake (fifth quintile) had a significant 28% increased relative rate for developing type 2 diabetes after adjustment for several potential confounders.
  • Compared with those with the lowest intake of vegetable cooking oil, those with the highest intake had a significant 56% increased rate of developing type 2 diabetes after adjustment.
  • Compared with adults with the lowest animal-to-vegetable cooking oil ratio (first quintile), those in the second, third, and fourth quintiles for this ratio had significantly lower adjusted relative rates of developing type 2 diabetes, with adjusted hazard ratios of 0.79, 0.65, and 0.68, respectively. Those in the highest quintile (fifth quintile) did not have a significantly different risk, compared with the first quintile.
  • The protective effect of a balanced ratio of animal-to-vegetable cooking oils was stronger in people who lived in rural districts and in those who had obesity.
 

 

Limitations

  • The dietary information came from participants’ self-reports, which may have produced biased data.
  • The study only included information about animal and vegetable cooking oil consumed at home.
  • There may have been residual confounding from variables not included in the study.
  • The time of diagnosis of type 2 diabetes may have been inaccurate because follow-up occurred only once. 
  • The study may have underestimated the incidence of type 2 diabetes because of a lack of information about hemoglobin A1c levels at follow-up.

Disclosures

  • The study did not receive commercial funding.
  • The authors reported no financial disclosures.

This is a summary of a preprint article “The consumption ratio of animal cooking oil to vegetable cooking oil and reduced risk of type 2 diabetes mellitus: A prospective cohort study in Southwest China” written by researchers primarily from Zunyi Medical University, China, on Preprints with The Lancet. This study has not yet been peer reviewed. The full text of the study can be found on papers.ssrn.com.

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

Researchers published the study covered in this summary on Preprints with The Lancet as a preprint that has not yet been peer reviewed.

Key takeaways

  • Adults in China who consumed a “balanced,” moderate ratio (middle three quintiles) of animal-to-vegetable cooking oil had a lower rate of developing type 2 diabetes during a median follow-up of 8.6 years, compared with those who consumed the lowest ratio (first quintile), after multivariable adjustment using prospectively collected data.
  • The results also indicate that increasing animal cooking oil (such as lard, tallow, or butter) and vegetable cooking oil (such as peanut or soybean oil) consumption were each positively associated with a higher rate of developing type 2 diabetes.
  • Those who consumed the highest ratio (fifth quintile) of animal-to-vegetable cooking oil had a nonsignificant difference in their rate of developing type 2 diabetes, compared with those in the first quintile.

Why this matters

  • The findings suggest that consuming a diet with a “balanced” moderate intake of animal and vegetable oil might lower the risk of type 2 diabetes, which would reduce disease burden and health care expenditures.
  • The results imply that using a single source of cooking oil, either animal or vegetable, contributes to the incidence of type 2 diabetes.
  • This is the first large epidemiological study showing a relationship between the ratio of animal- and vegetable-derived fats in people’s diets and their risk for incident type 2 diabetes.

Study design

  • The researchers used data collected prospectively starting in 2010-2012 from 7,274 adult residents of Guizhou province, China, with follow-up assessment in 2020 after a median of 8.6 years.
  • At baseline, participants underwent an oral glucose tolerance test and provided information on demographics, family medical history, and personal medical history, including whether they had been diagnosed with type 2 diabetes or were taking antihyperglycemic medications. The study did not include anyone with a history of diabetes.
  • Data on intake of animal and vegetable cooking oil came from a dietary questionnaire.
  • The authors calculated hazard ratios for development of type 2 diabetes after adjusting for multiple potential confounders.

Key results

  • The study cohort averaged 44 years old, and 53% were women.
  • During a median follow-up of 8.6 years, 747 people developed type 2 diabetes.
  • Compared with those who had the lowest intake of animal cooking oil (first quintile), those with the highest intake (fifth quintile) had a significant 28% increased relative rate for developing type 2 diabetes after adjustment for several potential confounders.
  • Compared with those with the lowest intake of vegetable cooking oil, those with the highest intake had a significant 56% increased rate of developing type 2 diabetes after adjustment.
  • Compared with adults with the lowest animal-to-vegetable cooking oil ratio (first quintile), those in the second, third, and fourth quintiles for this ratio had significantly lower adjusted relative rates of developing type 2 diabetes, with adjusted hazard ratios of 0.79, 0.65, and 0.68, respectively. Those in the highest quintile (fifth quintile) did not have a significantly different risk, compared with the first quintile.
  • The protective effect of a balanced ratio of animal-to-vegetable cooking oils was stronger in people who lived in rural districts and in those who had obesity.
 

 

Limitations

  • The dietary information came from participants’ self-reports, which may have produced biased data.
  • The study only included information about animal and vegetable cooking oil consumed at home.
  • There may have been residual confounding from variables not included in the study.
  • The time of diagnosis of type 2 diabetes may have been inaccurate because follow-up occurred only once. 
  • The study may have underestimated the incidence of type 2 diabetes because of a lack of information about hemoglobin A1c levels at follow-up.

Disclosures

  • The study did not receive commercial funding.
  • The authors reported no financial disclosures.

This is a summary of a preprint article “The consumption ratio of animal cooking oil to vegetable cooking oil and reduced risk of type 2 diabetes mellitus: A prospective cohort study in Southwest China” written by researchers primarily from Zunyi Medical University, China, on Preprints with The Lancet. This study has not yet been peer reviewed. The full text of the study can be found on papers.ssrn.com.

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

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Physician bias may prevent quality care for patients with disabilities

Article Type
Changed
Wed, 10/05/2022 - 12:38

For Tara Lagu, MD, the realization that the health care system was broken for patients with disabilities came when a woman she had been treating seemed to keep ignoring Dr. Lagu’s request to see a urologist.

When Dr. Lagu asked the patient’s two attentive daughters about the delay, their response surprised her. The women said they couldn’t find a urologist who was willing to see a patient in a wheelchair.

A wheelchair sitting in the hallway of a hospital is shown.
Ingram/thinkstock

Surprised and a bit doubtful, Dr. Lagu checked around. She found that, indeed, the only way to get her patient in to see the type of physician required was to send her by ambulance.

“It opened my eyes to how hard it is for patients with disabilities to navigate the health care system,” Dr. Lagu said.

Dr. Lagu, director of the Center for Health Services and Outcomes Research at Northwestern University in Chicago, decided to take a closer look at how her colleagues in medicine care for – or not, as the case proved – the roughly one in four American adults, and millions of children, with disabilities.

In a series of three focus groups, Dr. Lagu and colleagues identified a range of obstacles – including some physician attitudes – that prevent people with disabilities from getting adequate care.

Dr. Tara Lagu


For the study, published in Health Affairs, the researchers interviewed 22 physicians in three groups: Nonrural primary care physicians, rural primary care physicians, and specialists in rheumatology, neurology, obstetrics/gynecology, orthopedics, and ophthalmology.

During the interviews, conducted in the fall of 2018, participants were asked about providing care for five specific types of disabilities: mobility, hearing, vision, mental health, and intellectual limitations.
 

Lack of experience, logistics often cited

Some physicians admitted that limited resources and training left them without the space and necessary knowledge to properly care for patients with disabilities. They felt they lacked the expertise or exposure to care for individuals with disabilities, nor did they have enough time and space to properly accommodate these patients, according to the researchers. Some said they struggled to coordinate care for individuals with disabilities and did not know which types of accessible equipment, such as adjustable tables and chair scales, were needed or how to use them.

Several physicians also noted that they are inadequately reimbursed for the special accommodations – including additional staff, equipment, and time – required to care for these patients. One primary care physician said he hired a sign-language interpreter for a patient but the bill for the services exceeded the amount insurance reimbursed. As a result, he said, he spent $30 of his own money per visit to see the patient.

Because of these limitations, some physicians in the focus groups said they try to turn away patients with disabilities. Both specialists and general practitioners said they had told patients with disabilities that they didn’t feel they could provide the care needed, and suggested they look elsewhere. A few were surprisingly – even upsettingly – honest, Dr. Lagu said, making statements such as: “I am not the doctor for you.”
 

 

 

‘We really need a rewrite’

Previous work has shown that people with disabilities have worse health outcomes, such as undetected cancer, obesity, and cardiovascular disease.

But “the disability itself isn’t what leads to worse outcomes,” said Allison Kessler, MD, section chief of the Renée Crown Center for Spinal Cord Innovation and associate director of the Shirley Ryan AbilityLab in Chicago*. This study does a good job at highlighting “the need for change on multiple levels,” said Dr. Kessler, who was not a member of the study team.

“People with disabilities have all these disparities in access and outcomes. We’ve never understood why. I think the why is complicated,” Dr. Lagu added. “I think this study suggests some of the negative outcomes are due to explicit bias.”



“It’s also clear that the current framework of health care in the United States does not lend to allowing physicians and medical providers the time needed to adequately address patient issues – those with disabilities or just multiple complex problems,” Colin O’Reilly, DO, vice president and chief medical officer at Children’s Specialized Hospital, an acute rehabilitation facility affiliated with RWJBarnabas Health, in New Brunswick, N.J. “We really need a rewrite.”

However, Dr. O’Reilly said, such a small study population with no control group and no mention of physician resources makes it difficult to come to a strong conclusion about physician bias and discriminatory attitudes against individuals with disabilities.

Dr. Lagu agreed, saying this research “is not conclusive in any way.” The excuses doctors use to discharge patients with disabilities, such as “we don’t accept your insurance,” “we aren’t taking new patients,” and “we can’t provide you with the appropriate care,” could be legitimate, the study authors wrote. But the “disparities in care for people with disabilities suggest that there is a pattern of more frequently denying care to them than people without a disability,” they added.

Dr. Kessler said many of her patients have told her they experience barriers to care. Some say finding an office with the necessary equipment is a challenge or that they often don’t feel welcome.

The Americans With Disabilities Act (ADA) is a federal civil rights law that prohibits discrimination against individuals with disabilities in all public and private places that are open to the general public, including medical offices.

“It is difficult to enforce the ADA in medical settings,” the researchers noted. “Explanations physicians gave in this study could, for any single case of denying care, be legitimate.” Knowing whether a particular instance of denial of care represents discrimination related to disability is “nearly impossible,” they wrote.



All the experts agreed that the study adds valuable insight into an ongoing health disparity. And while system and policy changes are required, Dr. Kessler said, individual physicians can take steps to improve the situation.

A physician in an academic setting can look at the curriculum and the medical school and see about increasing exposure to patients with disabilities earlier in training. In a practice, physicians can retrain staff to ask every patient if an accommodation is needed. “Each one of those changes can only help us move our system in the right direction,” Dr. Kessler said.

The study was supported by a grant from the Eunice Kennedy Shriver National Institute of Child Health and Human Development.

*Correction, 10/5/22: This article includes a corrected title for Dr. Allison Kessler.

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

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For Tara Lagu, MD, the realization that the health care system was broken for patients with disabilities came when a woman she had been treating seemed to keep ignoring Dr. Lagu’s request to see a urologist.

When Dr. Lagu asked the patient’s two attentive daughters about the delay, their response surprised her. The women said they couldn’t find a urologist who was willing to see a patient in a wheelchair.

A wheelchair sitting in the hallway of a hospital is shown.
Ingram/thinkstock

Surprised and a bit doubtful, Dr. Lagu checked around. She found that, indeed, the only way to get her patient in to see the type of physician required was to send her by ambulance.

“It opened my eyes to how hard it is for patients with disabilities to navigate the health care system,” Dr. Lagu said.

Dr. Lagu, director of the Center for Health Services and Outcomes Research at Northwestern University in Chicago, decided to take a closer look at how her colleagues in medicine care for – or not, as the case proved – the roughly one in four American adults, and millions of children, with disabilities.

In a series of three focus groups, Dr. Lagu and colleagues identified a range of obstacles – including some physician attitudes – that prevent people with disabilities from getting adequate care.

Dr. Tara Lagu


For the study, published in Health Affairs, the researchers interviewed 22 physicians in three groups: Nonrural primary care physicians, rural primary care physicians, and specialists in rheumatology, neurology, obstetrics/gynecology, orthopedics, and ophthalmology.

During the interviews, conducted in the fall of 2018, participants were asked about providing care for five specific types of disabilities: mobility, hearing, vision, mental health, and intellectual limitations.
 

Lack of experience, logistics often cited

Some physicians admitted that limited resources and training left them without the space and necessary knowledge to properly care for patients with disabilities. They felt they lacked the expertise or exposure to care for individuals with disabilities, nor did they have enough time and space to properly accommodate these patients, according to the researchers. Some said they struggled to coordinate care for individuals with disabilities and did not know which types of accessible equipment, such as adjustable tables and chair scales, were needed or how to use them.

Several physicians also noted that they are inadequately reimbursed for the special accommodations – including additional staff, equipment, and time – required to care for these patients. One primary care physician said he hired a sign-language interpreter for a patient but the bill for the services exceeded the amount insurance reimbursed. As a result, he said, he spent $30 of his own money per visit to see the patient.

Because of these limitations, some physicians in the focus groups said they try to turn away patients with disabilities. Both specialists and general practitioners said they had told patients with disabilities that they didn’t feel they could provide the care needed, and suggested they look elsewhere. A few were surprisingly – even upsettingly – honest, Dr. Lagu said, making statements such as: “I am not the doctor for you.”
 

 

 

‘We really need a rewrite’

Previous work has shown that people with disabilities have worse health outcomes, such as undetected cancer, obesity, and cardiovascular disease.

But “the disability itself isn’t what leads to worse outcomes,” said Allison Kessler, MD, section chief of the Renée Crown Center for Spinal Cord Innovation and associate director of the Shirley Ryan AbilityLab in Chicago*. This study does a good job at highlighting “the need for change on multiple levels,” said Dr. Kessler, who was not a member of the study team.

“People with disabilities have all these disparities in access and outcomes. We’ve never understood why. I think the why is complicated,” Dr. Lagu added. “I think this study suggests some of the negative outcomes are due to explicit bias.”



“It’s also clear that the current framework of health care in the United States does not lend to allowing physicians and medical providers the time needed to adequately address patient issues – those with disabilities or just multiple complex problems,” Colin O’Reilly, DO, vice president and chief medical officer at Children’s Specialized Hospital, an acute rehabilitation facility affiliated with RWJBarnabas Health, in New Brunswick, N.J. “We really need a rewrite.”

However, Dr. O’Reilly said, such a small study population with no control group and no mention of physician resources makes it difficult to come to a strong conclusion about physician bias and discriminatory attitudes against individuals with disabilities.

Dr. Lagu agreed, saying this research “is not conclusive in any way.” The excuses doctors use to discharge patients with disabilities, such as “we don’t accept your insurance,” “we aren’t taking new patients,” and “we can’t provide you with the appropriate care,” could be legitimate, the study authors wrote. But the “disparities in care for people with disabilities suggest that there is a pattern of more frequently denying care to them than people without a disability,” they added.

Dr. Kessler said many of her patients have told her they experience barriers to care. Some say finding an office with the necessary equipment is a challenge or that they often don’t feel welcome.

The Americans With Disabilities Act (ADA) is a federal civil rights law that prohibits discrimination against individuals with disabilities in all public and private places that are open to the general public, including medical offices.

“It is difficult to enforce the ADA in medical settings,” the researchers noted. “Explanations physicians gave in this study could, for any single case of denying care, be legitimate.” Knowing whether a particular instance of denial of care represents discrimination related to disability is “nearly impossible,” they wrote.



All the experts agreed that the study adds valuable insight into an ongoing health disparity. And while system and policy changes are required, Dr. Kessler said, individual physicians can take steps to improve the situation.

A physician in an academic setting can look at the curriculum and the medical school and see about increasing exposure to patients with disabilities earlier in training. In a practice, physicians can retrain staff to ask every patient if an accommodation is needed. “Each one of those changes can only help us move our system in the right direction,” Dr. Kessler said.

The study was supported by a grant from the Eunice Kennedy Shriver National Institute of Child Health and Human Development.

*Correction, 10/5/22: This article includes a corrected title for Dr. Allison Kessler.

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

For Tara Lagu, MD, the realization that the health care system was broken for patients with disabilities came when a woman she had been treating seemed to keep ignoring Dr. Lagu’s request to see a urologist.

When Dr. Lagu asked the patient’s two attentive daughters about the delay, their response surprised her. The women said they couldn’t find a urologist who was willing to see a patient in a wheelchair.

A wheelchair sitting in the hallway of a hospital is shown.
Ingram/thinkstock

Surprised and a bit doubtful, Dr. Lagu checked around. She found that, indeed, the only way to get her patient in to see the type of physician required was to send her by ambulance.

“It opened my eyes to how hard it is for patients with disabilities to navigate the health care system,” Dr. Lagu said.

Dr. Lagu, director of the Center for Health Services and Outcomes Research at Northwestern University in Chicago, decided to take a closer look at how her colleagues in medicine care for – or not, as the case proved – the roughly one in four American adults, and millions of children, with disabilities.

In a series of three focus groups, Dr. Lagu and colleagues identified a range of obstacles – including some physician attitudes – that prevent people with disabilities from getting adequate care.

Dr. Tara Lagu


For the study, published in Health Affairs, the researchers interviewed 22 physicians in three groups: Nonrural primary care physicians, rural primary care physicians, and specialists in rheumatology, neurology, obstetrics/gynecology, orthopedics, and ophthalmology.

During the interviews, conducted in the fall of 2018, participants were asked about providing care for five specific types of disabilities: mobility, hearing, vision, mental health, and intellectual limitations.
 

Lack of experience, logistics often cited

Some physicians admitted that limited resources and training left them without the space and necessary knowledge to properly care for patients with disabilities. They felt they lacked the expertise or exposure to care for individuals with disabilities, nor did they have enough time and space to properly accommodate these patients, according to the researchers. Some said they struggled to coordinate care for individuals with disabilities and did not know which types of accessible equipment, such as adjustable tables and chair scales, were needed or how to use them.

Several physicians also noted that they are inadequately reimbursed for the special accommodations – including additional staff, equipment, and time – required to care for these patients. One primary care physician said he hired a sign-language interpreter for a patient but the bill for the services exceeded the amount insurance reimbursed. As a result, he said, he spent $30 of his own money per visit to see the patient.

Because of these limitations, some physicians in the focus groups said they try to turn away patients with disabilities. Both specialists and general practitioners said they had told patients with disabilities that they didn’t feel they could provide the care needed, and suggested they look elsewhere. A few were surprisingly – even upsettingly – honest, Dr. Lagu said, making statements such as: “I am not the doctor for you.”
 

 

 

‘We really need a rewrite’

Previous work has shown that people with disabilities have worse health outcomes, such as undetected cancer, obesity, and cardiovascular disease.

But “the disability itself isn’t what leads to worse outcomes,” said Allison Kessler, MD, section chief of the Renée Crown Center for Spinal Cord Innovation and associate director of the Shirley Ryan AbilityLab in Chicago*. This study does a good job at highlighting “the need for change on multiple levels,” said Dr. Kessler, who was not a member of the study team.

“People with disabilities have all these disparities in access and outcomes. We’ve never understood why. I think the why is complicated,” Dr. Lagu added. “I think this study suggests some of the negative outcomes are due to explicit bias.”



“It’s also clear that the current framework of health care in the United States does not lend to allowing physicians and medical providers the time needed to adequately address patient issues – those with disabilities or just multiple complex problems,” Colin O’Reilly, DO, vice president and chief medical officer at Children’s Specialized Hospital, an acute rehabilitation facility affiliated with RWJBarnabas Health, in New Brunswick, N.J. “We really need a rewrite.”

However, Dr. O’Reilly said, such a small study population with no control group and no mention of physician resources makes it difficult to come to a strong conclusion about physician bias and discriminatory attitudes against individuals with disabilities.

Dr. Lagu agreed, saying this research “is not conclusive in any way.” The excuses doctors use to discharge patients with disabilities, such as “we don’t accept your insurance,” “we aren’t taking new patients,” and “we can’t provide you with the appropriate care,” could be legitimate, the study authors wrote. But the “disparities in care for people with disabilities suggest that there is a pattern of more frequently denying care to them than people without a disability,” they added.

Dr. Kessler said many of her patients have told her they experience barriers to care. Some say finding an office with the necessary equipment is a challenge or that they often don’t feel welcome.

The Americans With Disabilities Act (ADA) is a federal civil rights law that prohibits discrimination against individuals with disabilities in all public and private places that are open to the general public, including medical offices.

“It is difficult to enforce the ADA in medical settings,” the researchers noted. “Explanations physicians gave in this study could, for any single case of denying care, be legitimate.” Knowing whether a particular instance of denial of care represents discrimination related to disability is “nearly impossible,” they wrote.



All the experts agreed that the study adds valuable insight into an ongoing health disparity. And while system and policy changes are required, Dr. Kessler said, individual physicians can take steps to improve the situation.

A physician in an academic setting can look at the curriculum and the medical school and see about increasing exposure to patients with disabilities earlier in training. In a practice, physicians can retrain staff to ask every patient if an accommodation is needed. “Each one of those changes can only help us move our system in the right direction,” Dr. Kessler said.

The study was supported by a grant from the Eunice Kennedy Shriver National Institute of Child Health and Human Development.

*Correction, 10/5/22: This article includes a corrected title for Dr. Allison Kessler.

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

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Strong link found between enterovirus and type 1 diabetes

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Tue, 10/04/2022 - 09:50

– Enterovirus infection appears to be strongly linked to both type 1 diabetes and islet cell autoantibodies, new research suggests.

The strength of the relationship, particularly within the first month of type 1 diabetes diagnosis, “further supports the rationale for development of enterovirus-targeted vaccines and antiviral therapy to prevent and reduce the impact of type 1 diabetes,” according to lead investigator Sonia Isaacs, MD, of the department of pediatrics and child health at the University of New South Wales, Sydney, Australia.

Enteroviruses are a large family of viruses responsible for many infections in children. These live in the intestinal tract but can cause a wide variety of illnesses. There are more than 70 different strains, which include the group A and group B coxsackieviruses, the polioviruses, hepatitis A virus, and several strains that just go by the name enterovirus. 

Dr. Isaacs presented the data, from a meta-analysis of studies using modern molecular techniques, at the annual meeting of the European Association for the Study of Diabetes.

The findings raise the question of whether people should be routinely tested for enterovirus at the time of type 1 diabetes diagnosis, she said during her presentation.

Asked by this news organization about the implications for first-degree relatives of people with type 1 diabetes, Dr. Isaacs said that they are “definitely a population to watch out for,” with regard to enteroviral infections. “Type 1 diabetes is very diverse and has different endotypes. Different environmental factors may be implicated in these different endotypes, and it may be that the enteroviruses are quite important in the first-degree relative group.”  

Asked to comment, session moderator Kamlesh Khunti, MD, PhD, told this news organization that the data were “compelling,” particularly in the short term after type 1 diabetes diagnosis. “It seems that there may be plausibility for enterovirus associated with the development of type 1 diabetes ... Are there methods by which we can reduce this risk with either antivirals or vaccinations? I think that needs to be tested.”

And in regard to first-degree relatives, “I think that’s the group to go for because the association is so highly correlated. I think that’s the group worth testing with any interventions,” said Dr. Khunti, professor of primary care diabetes and vascular medicine at the University of Leicester, England.

Link stronger a month after diagnosis, in close relatives, in Europe

The new meta-analysis is an update to a prior review published in 2011 by Dr. Isaacs’ group, which found that people with islet cell autoimmunity were more than four times as likely as were controls to have an enterovirus infection, and people with type 1 diabetes were almost 10 times as likely.

This new analysis focuses on studies using more modern molecular techniques for detecting viruses, including high throughput sequencing and single-cell technologies.

The analysis identified 60 studies with a total of 12,077 participants, of whom 900 had islet autoimmunity, 5,081 had type 1 diabetes, and 6,096 were controls. Thirty-five of the studies were from Europe, while others were from the United States, Asia, and the Middle East.

Of 16 studies examining enterovirus infection in islet autoimmunity, cases with islet autoimmunity were twice as likely to have an enterovirus infection at any time point compared to controls, a significant difference (odds ratio [OR], 2.07, P = .002.)

Among 48 studies reporting enterovirus infection in type 1 diabetes, those with type 1 diabetes were eight times as likely to have an enterovirus infection compared with controls (OR, 8.0, P < .00001).

In 25 studies including 2,977 participants with onset of type 1 diabetes within the prior month, those individuals were more than 16 times more likely to present with an enterovirus infection (OR, 16.2, P < .00001).

“The strength of this is association is greater than previously reported by both us and others,” Dr. Isaacs noted.

The association between enterovirus infection and islet autoimmunity was greater in individuals who later progressed to type 1 diabetes, with odds ratio 5.1 vs. 2.0 for those who didn’t. The association was most evident at or shortly after seroconversion (5.1), was stronger in Europe (3.2) than in other regions (1.9), and was stronger among those with a first-degree relative with type 1 diabetes (9.8) than those recruited via a high-risk human leukocyte antigen (HLA), in whom the relationship wasn’t significant.

Having multiple or consecutive enteroviral infections was also associated with islet autoimmunity (2.0).

With type 1 diabetes, the relationship with enterovirus was greater in children (9.0) than in adults (4.1), and was greater for type 1 diabetes onset within 1 year (13.8) and within 1 month (16.2) than for those with established type 1 diabetes (7.0). Here, too, the relationship was stronger in Europe (10.2) than outside Europe (7.5).

The link with type 1 diabetes and enterovirus was particularly strong for those with both a first-degree relative and a high-risk HLA (141.4).

The relationship with type 1 diabetes was significant for enterovirus species A (3.7), B (12.7) and C (13.8), including coxsackie virus genotypes, but not D.

“Future studies should focus on characterizing enterovirus genomes in at-risk cohorts rather than just the presence or absence of the virus,” Dr. Isaacs said.

However, she added, “type 1 diabetes is such a heterogenous condition, viruses may be implicated more in one type than another. It’s important that we start to look into this.”

Dr. Isaacs reports no relevant financial relationships. Dr. Khunti disclosed ties with AstraZeneca, Novartis, Novo Nordisk, Sanofi-Aventis, Lilly, Merck Sharp & Dohme, Boehringer Ingelheim, Bayer, Berlin-Chemie AG / Menarini Group, Janssen, and Napp.

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

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– Enterovirus infection appears to be strongly linked to both type 1 diabetes and islet cell autoantibodies, new research suggests.

The strength of the relationship, particularly within the first month of type 1 diabetes diagnosis, “further supports the rationale for development of enterovirus-targeted vaccines and antiviral therapy to prevent and reduce the impact of type 1 diabetes,” according to lead investigator Sonia Isaacs, MD, of the department of pediatrics and child health at the University of New South Wales, Sydney, Australia.

Enteroviruses are a large family of viruses responsible for many infections in children. These live in the intestinal tract but can cause a wide variety of illnesses. There are more than 70 different strains, which include the group A and group B coxsackieviruses, the polioviruses, hepatitis A virus, and several strains that just go by the name enterovirus. 

Dr. Isaacs presented the data, from a meta-analysis of studies using modern molecular techniques, at the annual meeting of the European Association for the Study of Diabetes.

The findings raise the question of whether people should be routinely tested for enterovirus at the time of type 1 diabetes diagnosis, she said during her presentation.

Asked by this news organization about the implications for first-degree relatives of people with type 1 diabetes, Dr. Isaacs said that they are “definitely a population to watch out for,” with regard to enteroviral infections. “Type 1 diabetes is very diverse and has different endotypes. Different environmental factors may be implicated in these different endotypes, and it may be that the enteroviruses are quite important in the first-degree relative group.”  

Asked to comment, session moderator Kamlesh Khunti, MD, PhD, told this news organization that the data were “compelling,” particularly in the short term after type 1 diabetes diagnosis. “It seems that there may be plausibility for enterovirus associated with the development of type 1 diabetes ... Are there methods by which we can reduce this risk with either antivirals or vaccinations? I think that needs to be tested.”

And in regard to first-degree relatives, “I think that’s the group to go for because the association is so highly correlated. I think that’s the group worth testing with any interventions,” said Dr. Khunti, professor of primary care diabetes and vascular medicine at the University of Leicester, England.

Link stronger a month after diagnosis, in close relatives, in Europe

The new meta-analysis is an update to a prior review published in 2011 by Dr. Isaacs’ group, which found that people with islet cell autoimmunity were more than four times as likely as were controls to have an enterovirus infection, and people with type 1 diabetes were almost 10 times as likely.

This new analysis focuses on studies using more modern molecular techniques for detecting viruses, including high throughput sequencing and single-cell technologies.

The analysis identified 60 studies with a total of 12,077 participants, of whom 900 had islet autoimmunity, 5,081 had type 1 diabetes, and 6,096 were controls. Thirty-five of the studies were from Europe, while others were from the United States, Asia, and the Middle East.

Of 16 studies examining enterovirus infection in islet autoimmunity, cases with islet autoimmunity were twice as likely to have an enterovirus infection at any time point compared to controls, a significant difference (odds ratio [OR], 2.07, P = .002.)

Among 48 studies reporting enterovirus infection in type 1 diabetes, those with type 1 diabetes were eight times as likely to have an enterovirus infection compared with controls (OR, 8.0, P < .00001).

In 25 studies including 2,977 participants with onset of type 1 diabetes within the prior month, those individuals were more than 16 times more likely to present with an enterovirus infection (OR, 16.2, P < .00001).

“The strength of this is association is greater than previously reported by both us and others,” Dr. Isaacs noted.

The association between enterovirus infection and islet autoimmunity was greater in individuals who later progressed to type 1 diabetes, with odds ratio 5.1 vs. 2.0 for those who didn’t. The association was most evident at or shortly after seroconversion (5.1), was stronger in Europe (3.2) than in other regions (1.9), and was stronger among those with a first-degree relative with type 1 diabetes (9.8) than those recruited via a high-risk human leukocyte antigen (HLA), in whom the relationship wasn’t significant.

Having multiple or consecutive enteroviral infections was also associated with islet autoimmunity (2.0).

With type 1 diabetes, the relationship with enterovirus was greater in children (9.0) than in adults (4.1), and was greater for type 1 diabetes onset within 1 year (13.8) and within 1 month (16.2) than for those with established type 1 diabetes (7.0). Here, too, the relationship was stronger in Europe (10.2) than outside Europe (7.5).

The link with type 1 diabetes and enterovirus was particularly strong for those with both a first-degree relative and a high-risk HLA (141.4).

The relationship with type 1 diabetes was significant for enterovirus species A (3.7), B (12.7) and C (13.8), including coxsackie virus genotypes, but not D.

“Future studies should focus on characterizing enterovirus genomes in at-risk cohorts rather than just the presence or absence of the virus,” Dr. Isaacs said.

However, she added, “type 1 diabetes is such a heterogenous condition, viruses may be implicated more in one type than another. It’s important that we start to look into this.”

Dr. Isaacs reports no relevant financial relationships. Dr. Khunti disclosed ties with AstraZeneca, Novartis, Novo Nordisk, Sanofi-Aventis, Lilly, Merck Sharp & Dohme, Boehringer Ingelheim, Bayer, Berlin-Chemie AG / Menarini Group, Janssen, and Napp.

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

– Enterovirus infection appears to be strongly linked to both type 1 diabetes and islet cell autoantibodies, new research suggests.

The strength of the relationship, particularly within the first month of type 1 diabetes diagnosis, “further supports the rationale for development of enterovirus-targeted vaccines and antiviral therapy to prevent and reduce the impact of type 1 diabetes,” according to lead investigator Sonia Isaacs, MD, of the department of pediatrics and child health at the University of New South Wales, Sydney, Australia.

Enteroviruses are a large family of viruses responsible for many infections in children. These live in the intestinal tract but can cause a wide variety of illnesses. There are more than 70 different strains, which include the group A and group B coxsackieviruses, the polioviruses, hepatitis A virus, and several strains that just go by the name enterovirus. 

Dr. Isaacs presented the data, from a meta-analysis of studies using modern molecular techniques, at the annual meeting of the European Association for the Study of Diabetes.

The findings raise the question of whether people should be routinely tested for enterovirus at the time of type 1 diabetes diagnosis, she said during her presentation.

Asked by this news organization about the implications for first-degree relatives of people with type 1 diabetes, Dr. Isaacs said that they are “definitely a population to watch out for,” with regard to enteroviral infections. “Type 1 diabetes is very diverse and has different endotypes. Different environmental factors may be implicated in these different endotypes, and it may be that the enteroviruses are quite important in the first-degree relative group.”  

Asked to comment, session moderator Kamlesh Khunti, MD, PhD, told this news organization that the data were “compelling,” particularly in the short term after type 1 diabetes diagnosis. “It seems that there may be plausibility for enterovirus associated with the development of type 1 diabetes ... Are there methods by which we can reduce this risk with either antivirals or vaccinations? I think that needs to be tested.”

And in regard to first-degree relatives, “I think that’s the group to go for because the association is so highly correlated. I think that’s the group worth testing with any interventions,” said Dr. Khunti, professor of primary care diabetes and vascular medicine at the University of Leicester, England.

Link stronger a month after diagnosis, in close relatives, in Europe

The new meta-analysis is an update to a prior review published in 2011 by Dr. Isaacs’ group, which found that people with islet cell autoimmunity were more than four times as likely as were controls to have an enterovirus infection, and people with type 1 diabetes were almost 10 times as likely.

This new analysis focuses on studies using more modern molecular techniques for detecting viruses, including high throughput sequencing and single-cell technologies.

The analysis identified 60 studies with a total of 12,077 participants, of whom 900 had islet autoimmunity, 5,081 had type 1 diabetes, and 6,096 were controls. Thirty-five of the studies were from Europe, while others were from the United States, Asia, and the Middle East.

Of 16 studies examining enterovirus infection in islet autoimmunity, cases with islet autoimmunity were twice as likely to have an enterovirus infection at any time point compared to controls, a significant difference (odds ratio [OR], 2.07, P = .002.)

Among 48 studies reporting enterovirus infection in type 1 diabetes, those with type 1 diabetes were eight times as likely to have an enterovirus infection compared with controls (OR, 8.0, P < .00001).

In 25 studies including 2,977 participants with onset of type 1 diabetes within the prior month, those individuals were more than 16 times more likely to present with an enterovirus infection (OR, 16.2, P < .00001).

“The strength of this is association is greater than previously reported by both us and others,” Dr. Isaacs noted.

The association between enterovirus infection and islet autoimmunity was greater in individuals who later progressed to type 1 diabetes, with odds ratio 5.1 vs. 2.0 for those who didn’t. The association was most evident at or shortly after seroconversion (5.1), was stronger in Europe (3.2) than in other regions (1.9), and was stronger among those with a first-degree relative with type 1 diabetes (9.8) than those recruited via a high-risk human leukocyte antigen (HLA), in whom the relationship wasn’t significant.

Having multiple or consecutive enteroviral infections was also associated with islet autoimmunity (2.0).

With type 1 diabetes, the relationship with enterovirus was greater in children (9.0) than in adults (4.1), and was greater for type 1 diabetes onset within 1 year (13.8) and within 1 month (16.2) than for those with established type 1 diabetes (7.0). Here, too, the relationship was stronger in Europe (10.2) than outside Europe (7.5).

The link with type 1 diabetes and enterovirus was particularly strong for those with both a first-degree relative and a high-risk HLA (141.4).

The relationship with type 1 diabetes was significant for enterovirus species A (3.7), B (12.7) and C (13.8), including coxsackie virus genotypes, but not D.

“Future studies should focus on characterizing enterovirus genomes in at-risk cohorts rather than just the presence or absence of the virus,” Dr. Isaacs said.

However, she added, “type 1 diabetes is such a heterogenous condition, viruses may be implicated more in one type than another. It’s important that we start to look into this.”

Dr. Isaacs reports no relevant financial relationships. Dr. Khunti disclosed ties with AstraZeneca, Novartis, Novo Nordisk, Sanofi-Aventis, Lilly, Merck Sharp & Dohme, Boehringer Ingelheim, Bayer, Berlin-Chemie AG / Menarini Group, Janssen, and Napp.

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

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