Bariatric Surgery

Bariatric surgery can reduce the risk of long-term cardiovascular outcomes in older Medicare beneficiaries with obesity, a large new observational study in which a third of the patients were over age 65 years suggests.

Overall, patients who underwent bariatric surgery had 37% lower all-cause mortality and were significantly less likely to have admissions for new-onset heart failure (64% risk reduction), myocardial infarction (37% risk reduction), and ischemic stroke (29% risk reduction), compared with similar patients who received more conservative treatment, after a median of 4 years of follow-up, report Amgad Mentias, MD, MS, a clinical cardiologist at the Cleveland Clinic Foundation, Ohio, and colleagues.

The results were published in the Journal of the American College of Cardiology.

Previous studies on bariatric surgery outcomes have primarily focused on individuals from select health care networks or medical facilities with restricted coverage in the United States or on patients with diabetes, noted Tiffany M. Powell-Wiley, MD, MPH, of the National Institutes of Health’s National Heart, Lung, and Blood Institute, Bethesda, Maryland, and colleagues in an accompanying editorial.

Contemporary cohort of patients

“A lot of the studies showed long-term outcomes outside of the U.S., specifically in Europe,” Dr. Mentias added.

The aim of this study was to evaluate the long-term association between bariatric surgery and risk of adverse cardiovascular outcomes in a contemporary large cohort from the United States.

Older patients (> 65 years) and those without diabetes were looked at as specific subgroups.

The researchers assessed 189,770 patients. There were 94,885 matched patients in each cohort. Mean age was 62.33 years. Female patients comprised 70% of the cohort. The study group had an average BMI of 44.7 kg/m2.

The study cohort was matched 1:1. Participants were either part of a control group with obesity or a group of Medicare beneficiaries who had bariatric surgery between 2013 and 2019. Sex, propensity score matching on 87 clinical variables, age, and BMI were used to match patients.

Myocardial infarction, new-onset heart failure, ischemic stroke, and all-cause mortality were all study outcomes. As a sensitivity analysis, the study team conducted an instrumental variable assessment.

More specifically, the findings showed that bariatric surgery was linked with the following after a median follow-up of 4.0 years:

• Myocardial infarction (hazard ratio, 0.63; 95% confidence interval, 0.59-0.68)
• Stroke (HR, 0.71; 95% CI, 0.65-0.79)
• New-onset heart failure (HR, 0.46; 95% CI, 0.44-0.49)
• Reduced risk of death (9.2 vs. 14.7 per 1000 person-years; HR, 0.63; 95% CI, 0.60-0.66)

Findings for those over the age of 65 were similar – lower risks of all-cause mortality (HR, 0.64), new-onset heart failure (HR, 0.52), myocardial infarction (HR, 0.70), and stroke (HR, 0.76; all P < .001). Similar findings were shown in subgroup analyses in men and women and in patients with and without diabetes.

The study cohort primarily consisted of Medicare patients, which limits the generalizability of the data. Lack of data on medications taken for cardiovascular and weight loss purposes and potential coding errors because the information was gathered from an administrative database were all limitations of the study, the researchers note.

An additional limitation was that residual unmeasured confounders, particularly patient-focused physical, social, and mental support factors, could play a role in whether a patient opted to have bariatric surgery, the study authors note.

“Additional studies are needed to compare cardiovascular outcomes after bariatric surgery with weight loss medications like glucagon-like peptide-1 (GLP-1) analogues,” the researchers add.

This study was partially funded by philanthropic contributions by the Khouri family, Bailey family, and Haslam family to the Cleveland Clinic for co-author Dr. Milind Y. Desai’s research. Dr. Mentias has disclosed no relevant financial relationships. Dr. Powell-Wiley disclosed relationships with the National Institute on Minority Health and Health Disparities and the Division of Intramural Research of the National, Heart, Lung, and Blood Institute of the National Institutes of Health.

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

Bariatric surgery can reduce the risk of long-term cardiovascular outcomes in older Medicare beneficiaries with obesity, a large new observational study in which a third of the patients were over age 65 years suggests.

Overall, patients who underwent bariatric surgery had 37% lower all-cause mortality and were significantly less likely to have admissions for new-onset heart failure (64% risk reduction), myocardial infarction (37% risk reduction), and ischemic stroke (29% risk reduction), compared with similar patients who received more conservative treatment, after a median of 4 years of follow-up, report Amgad Mentias, MD, MS, a clinical cardiologist at the Cleveland Clinic Foundation, Ohio, and colleagues.

The results were published in the Journal of the American College of Cardiology.

Previous studies on bariatric surgery outcomes have primarily focused on individuals from select health care networks or medical facilities with restricted coverage in the United States or on patients with diabetes, noted Tiffany M. Powell-Wiley, MD, MPH, of the National Institutes of Health’s National Heart, Lung, and Blood Institute, Bethesda, Maryland, and colleagues in an accompanying editorial.

Contemporary cohort of patients

“A lot of the studies showed long-term outcomes outside of the U.S., specifically in Europe,” Dr. Mentias added.

The aim of this study was to evaluate the long-term association between bariatric surgery and risk of adverse cardiovascular outcomes in a contemporary large cohort from the United States.

Older patients (> 65 years) and those without diabetes were looked at as specific subgroups.

The researchers assessed 189,770 patients. There were 94,885 matched patients in each cohort. Mean age was 62.33 years. Female patients comprised 70% of the cohort. The study group had an average BMI of 44.7 kg/m2.

The study cohort was matched 1:1. Participants were either part of a control group with obesity or a group of Medicare beneficiaries who had bariatric surgery between 2013 and 2019. Sex, propensity score matching on 87 clinical variables, age, and BMI were used to match patients.

Myocardial infarction, new-onset heart failure, ischemic stroke, and all-cause mortality were all study outcomes. As a sensitivity analysis, the study team conducted an instrumental variable assessment.

More specifically, the findings showed that bariatric surgery was linked with the following after a median follow-up of 4.0 years:

• Myocardial infarction (hazard ratio, 0.63; 95% confidence interval, 0.59-0.68)
• Stroke (HR, 0.71; 95% CI, 0.65-0.79)
• New-onset heart failure (HR, 0.46; 95% CI, 0.44-0.49)
• Reduced risk of death (9.2 vs. 14.7 per 1000 person-years; HR, 0.63; 95% CI, 0.60-0.66)

Findings for those over the age of 65 were similar – lower risks of all-cause mortality (HR, 0.64), new-onset heart failure (HR, 0.52), myocardial infarction (HR, 0.70), and stroke (HR, 0.76; all P < .001). Similar findings were shown in subgroup analyses in men and women and in patients with and without diabetes.

The study cohort primarily consisted of Medicare patients, which limits the generalizability of the data. Lack of data on medications taken for cardiovascular and weight loss purposes and potential coding errors because the information was gathered from an administrative database were all limitations of the study, the researchers note.

An additional limitation was that residual unmeasured confounders, particularly patient-focused physical, social, and mental support factors, could play a role in whether a patient opted to have bariatric surgery, the study authors note.

“Additional studies are needed to compare cardiovascular outcomes after bariatric surgery with weight loss medications like glucagon-like peptide-1 (GLP-1) analogues,” the researchers add.

This study was partially funded by philanthropic contributions by the Khouri family, Bailey family, and Haslam family to the Cleveland Clinic for co-author Dr. Milind Y. Desai’s research. Dr. Mentias has disclosed no relevant financial relationships. Dr. Powell-Wiley disclosed relationships with the National Institute on Minority Health and Health Disparities and the Division of Intramural Research of the National, Heart, Lung, and Blood Institute of the National Institutes of Health.

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

Bariatric surgery can reduce the risk of long-term cardiovascular outcomes in older Medicare beneficiaries with obesity, a large new observational study in which a third of the patients were over age 65 years suggests.

Overall, patients who underwent bariatric surgery had 37% lower all-cause mortality and were significantly less likely to have admissions for new-onset heart failure (64% risk reduction), myocardial infarction (37% risk reduction), and ischemic stroke (29% risk reduction), compared with similar patients who received more conservative treatment, after a median of 4 years of follow-up, report Amgad Mentias, MD, MS, a clinical cardiologist at the Cleveland Clinic Foundation, Ohio, and colleagues.

The results were published in the Journal of the American College of Cardiology.

Previous studies on bariatric surgery outcomes have primarily focused on individuals from select health care networks or medical facilities with restricted coverage in the United States or on patients with diabetes, noted Tiffany M. Powell-Wiley, MD, MPH, of the National Institutes of Health’s National Heart, Lung, and Blood Institute, Bethesda, Maryland, and colleagues in an accompanying editorial.

Contemporary cohort of patients

“A lot of the studies showed long-term outcomes outside of the U.S., specifically in Europe,” Dr. Mentias added.

The aim of this study was to evaluate the long-term association between bariatric surgery and risk of adverse cardiovascular outcomes in a contemporary large cohort from the United States.

Older patients (> 65 years) and those without diabetes were looked at as specific subgroups.

The researchers assessed 189,770 patients. There were 94,885 matched patients in each cohort. Mean age was 62.33 years. Female patients comprised 70% of the cohort. The study group had an average BMI of 44.7 kg/m2.

The study cohort was matched 1:1. Participants were either part of a control group with obesity or a group of Medicare beneficiaries who had bariatric surgery between 2013 and 2019. Sex, propensity score matching on 87 clinical variables, age, and BMI were used to match patients.

Myocardial infarction, new-onset heart failure, ischemic stroke, and all-cause mortality were all study outcomes. As a sensitivity analysis, the study team conducted an instrumental variable assessment.

More specifically, the findings showed that bariatric surgery was linked with the following after a median follow-up of 4.0 years:

• Myocardial infarction (hazard ratio, 0.63; 95% confidence interval, 0.59-0.68)
• Stroke (HR, 0.71; 95% CI, 0.65-0.79)
• New-onset heart failure (HR, 0.46; 95% CI, 0.44-0.49)
• Reduced risk of death (9.2 vs. 14.7 per 1000 person-years; HR, 0.63; 95% CI, 0.60-0.66)

Findings for those over the age of 65 were similar – lower risks of all-cause mortality (HR, 0.64), new-onset heart failure (HR, 0.52), myocardial infarction (HR, 0.70), and stroke (HR, 0.76; all P < .001). Similar findings were shown in subgroup analyses in men and women and in patients with and without diabetes.

The study cohort primarily consisted of Medicare patients, which limits the generalizability of the data. Lack of data on medications taken for cardiovascular and weight loss purposes and potential coding errors because the information was gathered from an administrative database were all limitations of the study, the researchers note.

An additional limitation was that residual unmeasured confounders, particularly patient-focused physical, social, and mental support factors, could play a role in whether a patient opted to have bariatric surgery, the study authors note.

“Additional studies are needed to compare cardiovascular outcomes after bariatric surgery with weight loss medications like glucagon-like peptide-1 (GLP-1) analogues,” the researchers add.

This study was partially funded by philanthropic contributions by the Khouri family, Bailey family, and Haslam family to the Cleveland Clinic for co-author Dr. Milind Y. Desai’s research. Dr. Mentias has disclosed no relevant financial relationships. Dr. Powell-Wiley disclosed relationships with the National Institute on Minority Health and Health Disparities and the Division of Intramural Research of the National, Heart, Lung, and Blood Institute of the National Institutes of Health.

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

Jessica Furby struggled with weight most of her life, constantly dieting and exercising to shed pounds. But nothing seemed to help. By her 22nd birthday, she tipped the scales at more than 300 pounds.

So, in 2011, while a college student in Pittsburgh, she decided to have gastric band surgery. Doctors placed a synthetic belt around her stomach to limit what she could eat. It seemed like a good option at the time and, after her surgery, she lost about 60 pounds.

But the benefits didn’t last. In the months that followed, she had pain and other complications. Worst of all, she eventually regained all the weight she’d lost – and then some. By 2016, she weighed 350 pounds and was becoming prediabetic.

That’s when she decided to have the band removed and, on her doctor’s recommendation, had gastric sleeve surgery.

Studies have found the sleeve surgeries carry fewer complications and a much higher success rate than gastric band procedures, which Ms. Furby’s experience has confirmed.

Today, at age 32, she’s down to 288 pounds and says she is on her way to hitting her ultimate goal of 200 pounds.

“The surgery has been a godsend,” she said. “I have not had any complications with it at all. The sleeve was life-changing for me.”

Ms. Furby’s experience has become more common as the risks, complications, and failures of gastric band surgeries have been rising over the past decade.

More band patients are choosing to have conversion surgery to gastric sleeve and gastric bypass. At the same time, fewer doctors are doing gastric band procedures, because of problems like Ms. Furby’s.

According to the latest figures from the American Society for Metabolic and Bariatric Surgery, gastric band procedures account for fewer than 1% of the 256,000 bariatric operations done in the United States each year, while gastric sleeves add up to nearly 60%. That makes sleeve surgeries the most commonly performed bariatric operation today.

By comparison, 35% of bariatric surgeries were gastric band procedures in 2011, while sleeve operations accounted for under 18%.

Ms. Furby’s surgeon, Anita P. Courcoulas, MD, said the trend is being driven by many of the things Ms.Furby experienced firsthand.

Dr. Courcoulas, chief of minimally invasive bariatric and general surgery at the University of Pittsburgh, said there are two main reasons for the decline in gastric band procedures.

“It has been shown to be less effective for weight loss [than] other bariatric surgical procedures, and band intolerance often results in band removal,” she noted.

Gastric sleeve, followed by gastric bypass, are the two most commonly performed operations in the United States and worldwide, she said.

Dr. Courcoulas said the shift from gastric bypass to gastric sleeve procedures “is likely driven by the decline in the band usage, patient preferences for a less invasive operation, such as the sleeve compared to bypass, and surgeon preferences about which operation(s) to offer a given patient.”

Ali Aminian, MD, director of the Bariatric and Metabolic Institute at the Cleveland Clinic, agrees that gastric band complications and failures, in addition to ineffective weight loss, are behind the trend, driving patients and doctors to choose safer and more effective procedures.

He said the Cleveland Clinic no longer does band operations, and he has done a lot of conversions.

“Around 50%-60% of [gastric band] patients require reoperation to take care of the complications,” he says. “So, when you have a surgery where more than half of the time the patients require reoperation, we cannot claim that’s a safe operation.”
 

Evolution in bariatric surgery

Bariatric surgeries for weight loss date back to the 1950s and 1960s, when surgeons at the University of Minnesota first did experimental bypass operations. Adjustable gastric banding appeared in the late 1970s and early 1980s.

But these procedures didn’t gain widespread mainstream use until gastric band procedures gained full Food and Drug Administration approval in 2001. Clinical trials have found people who have bariatric surgery have a significantly lower risk of heart disease and other obesity-related health problems.

In the decade that followed the FDA’s approval of gastric band surgery, it became a popular weight loss procedure, accounting for more than a third of all bariatric surgeries by 2011.

“Fifteen to 20 years ago, [gastric] band was the most commonly performed procedure for bariatric surgery worldwide and in the United States,” Dr. Aminian said. “It was very easy to do, it was quick – it takes 20 minutes to do the procedure – recovery was short, and initially patients had great outcomes. They would lose weight and were healthy.”

But over the past decade, surgeons found that patients often regained the weight they’d lost, and complication and failure rates rose.

“Because the [gastric] band is a foreign body that we place inside the body, many patients had complications related to that foreign body,” Dr. Aminian said.

The band can sometimes move or be displaced, causing blockage of the stomach, experts noted. Other common complications include nausea, vomiting, acid reflux, and esophageal issues (such as a hard time swallowing). Some patients feel pain, constant food cravings, or that they can’t eat or drink anything. And painful infections and other problems can develop with the tubing or the port placed under the skin that is connected to the band, which doctors use to make adjustments after surgery.

“Scar tissue can also form around the [gastric] band that can cause a blockage in the stomach,” Dr. Aminian said. “Then if the band is too tight, it can erode into the stomach tissue or even go inside the stomach and cause perforation or bleeding.”

By contrast, gastric sleeve and bypass procedures have been found to be safer, result in longer-lasting weight loss, carry fewer complications, and require fewer patient reoperations. Dr. Aminian estimates that 2%-3% of patients need second operations.

Another key factor: Metabolic ‘reset’

Sleeve and bypass procedures offer another critical advantage over band operations: They help reset the body’s metabolism better, changing appetite- and weight-related hormones in the body.

Those hormones can affect food cravings, help people feel full after eating, or boost weight gain in ways that can trump willpower, experts say.

“The [gastric] band doesn’t change the hormones in the body, it’s just a restrictive band around the esophagus or the upper part of the stomach, so it limits the patient’s ability to eat too much,” Dr. Aminian said. “That’s why it doesn’t have the metabolic effects.”

But other procedures, like the gastric sleeve, change the hormones in the body. Removing the source of those hormones means the patient won’t have the same appetite, Dr. Aminian said.

“And that’s why it’s very effective. The problem with the [gastric] band is the patient always has the feeling and desire to eat – they’re always hungry. That’s why in the long run, they fail,” he said.

“They change the setpoints,” Dr. Aminian said. “When the hormones in your body change, the [metabolic] setpoint in the brain also changes.”

He likens the metabolic setpoint to a thermostat in your home that regulates temperature inside.

“When a patient goes on a diet or goes on the [gastric] band, the thermostat doesn’t change,” he says. “They may lose some weight, but they’re going to regain it because the thermostat is the same. But when the hormones in your body change, then the thermostat will change and you’re not going to regain the weight that you have lost.”

Sachin Kukreja, MD, a surgeon and CEO at DFW Bariatrics and General Surgery in Dallas, said he believes these metabolic changes are the biggest things behind successful surgeries.

“People synonymize bariatric surgery with weight loss surgery, but really the metrics we should be using are more related to metabolic measures,” said Dr. Kukreja, who hasn’t done a band surgery since 2013. “And so, the metabolic parameters that change with bariatric surgery are much more significant in the setting with sleeve and gastric sleeve, and much less significant with [gastric] band.”

David Arterburn, MD, agrees that resetting metabolism is important but said the issue is “controversial and challenging” among bariatric surgeons.

“The metabolic setpoint is the idea that we have a biologically controlled set body weight that we will always return to. Clearly, this is not the case for everyone, as some people lose and maintain long-term weight loss,” said Dr. Arterburn, a general internist and bariatric surgery researcher at Kaiser Permanente Washington Health Research Institute in Seattle.
 

Postop lifestyle changes critical to success

Bariatric surgeons and patients alike also say that no surgical procedure is a magic-bullet solution for weight loss. Patients who have any type of bariatric surgery must embrace postop lifestyle changes – adopting healthier diets, getting more exercise, cutting out unhealthy habits – to lose weight and maintain weight loss.

Jan Lasecki, 54, a health care specialist in Akron, Ohio, who had band-to-sleeve conversion surgery in 2020, said the postop follow-up was at least as important as the surgery itself in helping her shed pounds.

She said at first, she chose gastric band surgery several years ago because it was “less invasive” than gastric sleeve or bypass. But while she lost about 50 pounds, she regained it after about 6 years and had other complications.

So, 2 years ago, Ms. Lasecki had two surgeries 6 months apart – one to remove her band, and a second to create a gastric sleeve. And the results, she said, have been very successful, in part because of the changes she made after surgery, with the help of her doctor’s staff.

“I have now lost about 90 pounds and have kept if off since surgery,” she says. “I would tell anyone considering any bariatric surgery, it was definitely worth it [and] having the sleeve resulted in greater weight loss.”

The follow-up was key to the success, she said.

The staff “have the tools and support to help you when you tend to fall back on old behaviors and start to regain weight,” Ms. Lasecki said. “They can help you before it gets out of control. I had no issues following either procedure from a surgery perspective.”

Sally and Robert Cordova – who had gastric bypass and sleeve surgeries, respectively, 3 years ago – agreed that the postop lifestyle changes are critical to success.

“When we agreed to have this surgery, we agreed that this will be a lifestyle change for the rest of our lives,” said Sally, 48, an accounting specialist who’s lost 150 pounds – half her body weight – since her surgery. “You can’t just get to your ideal weight and then stop.”

Robert, 47, a federal border control agent whose workmates nicknamed him “Big Rob” when he tipped the scales at 336 pounds, said it’s a mistake to think of the surgery as a “magic-bullet” solution to obesity. There’s more to it than that, he said.

“One of the things I like about the process I’ve taken is, in my opinion, they set you up for success,” he said. “Because it’s not just having the surgery and you’re done; it’s all the classes educating you about all the lifestyle changes you have to do, and starting them before the surgery. The only people that I know personally who haven’t been successful with the surgery are those who haven’t made the lifestyle changes.”

Today, at 230 pounds, Robert says he’s never felt better.

“I feel great,” he says. “I have become more active, obviously doing everything is a lot easier. It got to the point where it was a task to just tying up my shoes!”
 

Should band patients convert to sleeve or bypass?

Bariatric surgeons interviewed for this article were reluctant to say that all people who had gastric band procedures should convert to gastric sleeve or bypass. But they made it clear that sleeve and bypass procedures are safer and more effective than gastric band surgery, which is why it is rarely done today.

“If a patient experiences poor weight loss or complications from a band, they can consider conversion/revision to a sleeve or bypass,” said Dr. Courcoulas, echoing the views of other doctors.

“The choice of revision procedure should be based on patient factors, including diabetes and total weight. Converting a band to a sleeve is a technically easier operation, and some studies show that there are fewer complications, compared to conversion to a bypass. These considerations need to be balanced with data that show that both weight loss and metabolic improvements such as diabetes are greater after bypass, compared to sleeve.”

Doctors and experts also say it’s important for patients who are considering a gastric band conversion to gastric sleeve or bypass to understand the differences among these three primary procedures, all endorsed by the American Society for Metabolic and Bariatric Surgery.

Here’s a primer, including the pros and cons of each procedure:
 

Gastric band

In gastric band surgery, an adjustable gastric band made of silicone is placed around the top part of the stomach, creating a small pouch above it, to limit the amount of food a person can eat. The size of the opening between the pouch and the stomach can be adjusted with fluid injections through a port placed underneath the skin.

Food goes through the stomach but is limited by the smaller opening of the band.

Advantages:

• Lowest rate of complications right after surgery.
• No division of the stomach or intestines.
• Patients go home on the day of surgery, and recovery is quick.
• The band can be removed, if necessary.

Disadvantages:

• The band may need to be adjusted from time to time, and patients must make monthly office visits during the first year.
• There’s less weight loss than with other surgical procedures.
• It comes with the risk of band movement (slippage) or damage to the stomach over time (erosion).
• The surgery means that a foreign implant has to remain in the body.
• It has a high rate of reoperation.
• The surgery can bring swallowing problems, enlargement of the esophagus, and other complications.

Gastric sleeve

For laparoscopic sleeve gastrectomy – often called gastric sleeve – surgeons remove about 80% of the stomach, so the remaining stomach is the size and shape of a banana.

The new, smaller stomach holds less food and liquid, reducing how much food (and how many calories) the patient can get. By removing the portion of the stomach that produces hunger and appetite hormones, the surgery also helps reset the body’s metabolism – decreasing hunger, increasing feelings of fullness, and allowing the body to reach and maintain a healthy weight as well as control blood sugar.

Advantages:

• It’s technically simple and has a short surgery time.
• It can be done in certain patients with high-risk medical conditions.
• It may be the first step for patients with severe obesity or as a bridge to gastric bypass.
• The surgery brings effective weight loss and improvement of obesity-related conditions (typically 50%-60%, by Mayo Clinic estimates), with a low complication rate (2%-3%).

Disadvantages:

• Nonreversible procedure.
• May worsen or cause new reflux and heartburn.
• Less impact on metabolism, compared to bypass procedures.

Gastric bypass

Gastric bypass, also known as the Roux-en-Y gastric bypass (French for “in the form of a Y”) is another effective procedure used to treat obesity and obesity-related diseases (done laparoscopically since the 1990s).

For the operation, surgeons divide the stomach into a smaller top portion (pouch) about the size of an egg, then the larger part of the stomach is bypassed and no longer stores or digests food.

The small intestine is divided and connected to the new egg-sized stomach pouch to allow food to pass.

Gastric bypass works by limiting the amount of food and calories a patient can consume. It also decreases hunger and increases fullness, allowing the patient to reach and maintain a healthy weight. The impact on hormones and metabolic health often results in improvement of diabetes and helps patients with reflux.

Advantages:

• Reliable and long-lasting weight loss.
• Effective for remission of obesity-associated conditions.
• Effective weight loss (60%-70%, by Mayo Clinic estimates).

Disadvantages:

• Technically more complex when compared to gastric sleeve or band.
• More vitamin and mineral deficiencies than with gastric sleeve or band.
• Risk for small bowel complications and obstruction, as well as ulcers, especially with NSAID or tobacco use.
• May cause “dumping syndrome,” a feeling of sickness after eating or drinking, especially sweets.

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

Editor’s Note: This story has been updated to properly identify a product referenced in the story.

Jessica Furby struggled with weight most of her life, constantly dieting and exercising to shed pounds. But nothing seemed to help. By her 22nd birthday, she tipped the scales at more than 300 pounds.

So, in 2011, while a college student in Pittsburgh, she decided to have gastric band surgery. Doctors placed a synthetic belt around her stomach to limit what she could eat. It seemed like a good option at the time and, after her surgery, she lost about 60 pounds.

But the benefits didn’t last. In the months that followed, she had pain and other complications. Worst of all, she eventually regained all the weight she’d lost – and then some. By 2016, she weighed 350 pounds and was becoming prediabetic.

That’s when she decided to have the band removed and, on her doctor’s recommendation, had gastric sleeve surgery.

Studies have found the sleeve surgeries carry fewer complications and a much higher success rate than gastric band procedures, which Ms. Furby’s experience has confirmed.

Today, at age 32, she’s down to 288 pounds and says she is on her way to hitting her ultimate goal of 200 pounds.

“The surgery has been a godsend,” she said. “I have not had any complications with it at all. The sleeve was life-changing for me.”

Ms. Furby’s experience has become more common as the risks, complications, and failures of gastric band surgeries have been rising over the past decade.

More band patients are choosing to have conversion surgery to gastric sleeve and gastric bypass. At the same time, fewer doctors are doing gastric band procedures, because of problems like Ms. Furby’s.

According to the latest figures from the American Society for Metabolic and Bariatric Surgery, gastric band procedures account for fewer than 1% of the 256,000 bariatric operations done in the United States each year, while gastric sleeves add up to nearly 60%. That makes sleeve surgeries the most commonly performed bariatric operation today.

By comparison, 35% of bariatric surgeries were gastric band procedures in 2011, while sleeve operations accounted for under 18%.

Ms. Furby’s surgeon, Anita P. Courcoulas, MD, said the trend is being driven by many of the things Ms.Furby experienced firsthand.

Dr. Courcoulas, chief of minimally invasive bariatric and general surgery at the University of Pittsburgh, said there are two main reasons for the decline in gastric band procedures.

“It has been shown to be less effective for weight loss [than] other bariatric surgical procedures, and band intolerance often results in band removal,” she noted.

Gastric sleeve, followed by gastric bypass, are the two most commonly performed operations in the United States and worldwide, she said.

Dr. Courcoulas said the shift from gastric bypass to gastric sleeve procedures “is likely driven by the decline in the band usage, patient preferences for a less invasive operation, such as the sleeve compared to bypass, and surgeon preferences about which operation(s) to offer a given patient.”

Ali Aminian, MD, director of the Bariatric and Metabolic Institute at the Cleveland Clinic, agrees that gastric band complications and failures, in addition to ineffective weight loss, are behind the trend, driving patients and doctors to choose safer and more effective procedures.

He said the Cleveland Clinic no longer does band operations, and he has done a lot of conversions.

“Around 50%-60% of [gastric band] patients require reoperation to take care of the complications,” he says. “So, when you have a surgery where more than half of the time the patients require reoperation, we cannot claim that’s a safe operation.”
 

Evolution in bariatric surgery

Bariatric surgeries for weight loss date back to the 1950s and 1960s, when surgeons at the University of Minnesota first did experimental bypass operations. Adjustable gastric banding appeared in the late 1970s and early 1980s.

But these procedures didn’t gain widespread mainstream use until gastric band procedures gained full Food and Drug Administration approval in 2001. Clinical trials have found people who have bariatric surgery have a significantly lower risk of heart disease and other obesity-related health problems.

In the decade that followed the FDA’s approval of gastric band surgery, it became a popular weight loss procedure, accounting for more than a third of all bariatric surgeries by 2011.

“Fifteen to 20 years ago, [gastric] band was the most commonly performed procedure for bariatric surgery worldwide and in the United States,” Dr. Aminian said. “It was very easy to do, it was quick – it takes 20 minutes to do the procedure – recovery was short, and initially patients had great outcomes. They would lose weight and were healthy.”

But over the past decade, surgeons found that patients often regained the weight they’d lost, and complication and failure rates rose.

“Because the [gastric] band is a foreign body that we place inside the body, many patients had complications related to that foreign body,” Dr. Aminian said.

The band can sometimes move or be displaced, causing blockage of the stomach, experts noted. Other common complications include nausea, vomiting, acid reflux, and esophageal issues (such as a hard time swallowing). Some patients feel pain, constant food cravings, or that they can’t eat or drink anything. And painful infections and other problems can develop with the tubing or the port placed under the skin that is connected to the band, which doctors use to make adjustments after surgery.

“Scar tissue can also form around the [gastric] band that can cause a blockage in the stomach,” Dr. Aminian said. “Then if the band is too tight, it can erode into the stomach tissue or even go inside the stomach and cause perforation or bleeding.”

By contrast, gastric sleeve and bypass procedures have been found to be safer, result in longer-lasting weight loss, carry fewer complications, and require fewer patient reoperations. Dr. Aminian estimates that 2%-3% of patients need second operations.

Another key factor: Metabolic ‘reset’

Sleeve and bypass procedures offer another critical advantage over band operations: They help reset the body’s metabolism better, changing appetite- and weight-related hormones in the body.

Those hormones can affect food cravings, help people feel full after eating, or boost weight gain in ways that can trump willpower, experts say.

“The [gastric] band doesn’t change the hormones in the body, it’s just a restrictive band around the esophagus or the upper part of the stomach, so it limits the patient’s ability to eat too much,” Dr. Aminian said. “That’s why it doesn’t have the metabolic effects.”

But other procedures, like the gastric sleeve, change the hormones in the body. Removing the source of those hormones means the patient won’t have the same appetite, Dr. Aminian said.

“And that’s why it’s very effective. The problem with the [gastric] band is the patient always has the feeling and desire to eat – they’re always hungry. That’s why in the long run, they fail,” he said.

“They change the setpoints,” Dr. Aminian said. “When the hormones in your body change, the [metabolic] setpoint in the brain also changes.”

He likens the metabolic setpoint to a thermostat in your home that regulates temperature inside.

“When a patient goes on a diet or goes on the [gastric] band, the thermostat doesn’t change,” he says. “They may lose some weight, but they’re going to regain it because the thermostat is the same. But when the hormones in your body change, then the thermostat will change and you’re not going to regain the weight that you have lost.”

Sachin Kukreja, MD, a surgeon and CEO at DFW Bariatrics and General Surgery in Dallas, said he believes these metabolic changes are the biggest things behind successful surgeries.

“People synonymize bariatric surgery with weight loss surgery, but really the metrics we should be using are more related to metabolic measures,” said Dr. Kukreja, who hasn’t done a band surgery since 2013. “And so, the metabolic parameters that change with bariatric surgery are much more significant in the setting with sleeve and gastric sleeve, and much less significant with [gastric] band.”

David Arterburn, MD, agrees that resetting metabolism is important but said the issue is “controversial and challenging” among bariatric surgeons.

“The metabolic setpoint is the idea that we have a biologically controlled set body weight that we will always return to. Clearly, this is not the case for everyone, as some people lose and maintain long-term weight loss,” said Dr. Arterburn, a general internist and bariatric surgery researcher at Kaiser Permanente Washington Health Research Institute in Seattle.
 

Postop lifestyle changes critical to success

Bariatric surgeons and patients alike also say that no surgical procedure is a magic-bullet solution for weight loss. Patients who have any type of bariatric surgery must embrace postop lifestyle changes – adopting healthier diets, getting more exercise, cutting out unhealthy habits – to lose weight and maintain weight loss.

Jan Lasecki, 54, a health care specialist in Akron, Ohio, who had band-to-sleeve conversion surgery in 2020, said the postop follow-up was at least as important as the surgery itself in helping her shed pounds.

She said at first, she chose gastric band surgery several years ago because it was “less invasive” than gastric sleeve or bypass. But while she lost about 50 pounds, she regained it after about 6 years and had other complications.

So, 2 years ago, Ms. Lasecki had two surgeries 6 months apart – one to remove her band, and a second to create a gastric sleeve. And the results, she said, have been very successful, in part because of the changes she made after surgery, with the help of her doctor’s staff.

“I have now lost about 90 pounds and have kept if off since surgery,” she says. “I would tell anyone considering any bariatric surgery, it was definitely worth it [and] having the sleeve resulted in greater weight loss.”

The follow-up was key to the success, she said.

The staff “have the tools and support to help you when you tend to fall back on old behaviors and start to regain weight,” Ms. Lasecki said. “They can help you before it gets out of control. I had no issues following either procedure from a surgery perspective.”

Sally and Robert Cordova – who had gastric bypass and sleeve surgeries, respectively, 3 years ago – agreed that the postop lifestyle changes are critical to success.

“When we agreed to have this surgery, we agreed that this will be a lifestyle change for the rest of our lives,” said Sally, 48, an accounting specialist who’s lost 150 pounds – half her body weight – since her surgery. “You can’t just get to your ideal weight and then stop.”

Robert, 47, a federal border control agent whose workmates nicknamed him “Big Rob” when he tipped the scales at 336 pounds, said it’s a mistake to think of the surgery as a “magic-bullet” solution to obesity. There’s more to it than that, he said.

“One of the things I like about the process I’ve taken is, in my opinion, they set you up for success,” he said. “Because it’s not just having the surgery and you’re done; it’s all the classes educating you about all the lifestyle changes you have to do, and starting them before the surgery. The only people that I know personally who haven’t been successful with the surgery are those who haven’t made the lifestyle changes.”

Today, at 230 pounds, Robert says he’s never felt better.

“I feel great,” he says. “I have become more active, obviously doing everything is a lot easier. It got to the point where it was a task to just tying up my shoes!”
 

Should band patients convert to sleeve or bypass?

Bariatric surgeons interviewed for this article were reluctant to say that all people who had gastric band procedures should convert to gastric sleeve or bypass. But they made it clear that sleeve and bypass procedures are safer and more effective than gastric band surgery, which is why it is rarely done today.

“If a patient experiences poor weight loss or complications from a band, they can consider conversion/revision to a sleeve or bypass,” said Dr. Courcoulas, echoing the views of other doctors.

“The choice of revision procedure should be based on patient factors, including diabetes and total weight. Converting a band to a sleeve is a technically easier operation, and some studies show that there are fewer complications, compared to conversion to a bypass. These considerations need to be balanced with data that show that both weight loss and metabolic improvements such as diabetes are greater after bypass, compared to sleeve.”

Doctors and experts also say it’s important for patients who are considering a gastric band conversion to gastric sleeve or bypass to understand the differences among these three primary procedures, all endorsed by the American Society for Metabolic and Bariatric Surgery.

Here’s a primer, including the pros and cons of each procedure:
 

Gastric band

In gastric band surgery, an adjustable gastric band made of silicone is placed around the top part of the stomach, creating a small pouch above it, to limit the amount of food a person can eat. The size of the opening between the pouch and the stomach can be adjusted with fluid injections through a port placed underneath the skin.

Food goes through the stomach but is limited by the smaller opening of the band.

Advantages:

• Lowest rate of complications right after surgery.
• No division of the stomach or intestines.
• Patients go home on the day of surgery, and recovery is quick.
• The band can be removed, if necessary.

Disadvantages:

• The band may need to be adjusted from time to time, and patients must make monthly office visits during the first year.
• There’s less weight loss than with other surgical procedures.
• It comes with the risk of band movement (slippage) or damage to the stomach over time (erosion).
• The surgery means that a foreign implant has to remain in the body.
• It has a high rate of reoperation.
• The surgery can bring swallowing problems, enlargement of the esophagus, and other complications.

Gastric sleeve

For laparoscopic sleeve gastrectomy – often called gastric sleeve – surgeons remove about 80% of the stomach, so the remaining stomach is the size and shape of a banana.

The new, smaller stomach holds less food and liquid, reducing how much food (and how many calories) the patient can get. By removing the portion of the stomach that produces hunger and appetite hormones, the surgery also helps reset the body’s metabolism – decreasing hunger, increasing feelings of fullness, and allowing the body to reach and maintain a healthy weight as well as control blood sugar.

Advantages:

• It’s technically simple and has a short surgery time.
• It can be done in certain patients with high-risk medical conditions.
• It may be the first step for patients with severe obesity or as a bridge to gastric bypass.
• The surgery brings effective weight loss and improvement of obesity-related conditions (typically 50%-60%, by Mayo Clinic estimates), with a low complication rate (2%-3%).

Disadvantages:

• Nonreversible procedure.
• May worsen or cause new reflux and heartburn.
• Less impact on metabolism, compared to bypass procedures.

Gastric bypass

Gastric bypass, also known as the Roux-en-Y gastric bypass (French for “in the form of a Y”) is another effective procedure used to treat obesity and obesity-related diseases (done laparoscopically since the 1990s).

For the operation, surgeons divide the stomach into a smaller top portion (pouch) about the size of an egg, then the larger part of the stomach is bypassed and no longer stores or digests food.

The small intestine is divided and connected to the new egg-sized stomach pouch to allow food to pass.

Gastric bypass works by limiting the amount of food and calories a patient can consume. It also decreases hunger and increases fullness, allowing the patient to reach and maintain a healthy weight. The impact on hormones and metabolic health often results in improvement of diabetes and helps patients with reflux.

Advantages:

• Reliable and long-lasting weight loss.
• Effective for remission of obesity-associated conditions.
• Effective weight loss (60%-70%, by Mayo Clinic estimates).

Disadvantages:

• Technically more complex when compared to gastric sleeve or band.
• More vitamin and mineral deficiencies than with gastric sleeve or band.
• Risk for small bowel complications and obstruction, as well as ulcers, especially with NSAID or tobacco use.
• May cause “dumping syndrome,” a feeling of sickness after eating or drinking, especially sweets.

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

Editor’s Note: This story has been updated to properly identify a product referenced in the story.

Jessica Furby struggled with weight most of her life, constantly dieting and exercising to shed pounds. But nothing seemed to help. By her 22nd birthday, she tipped the scales at more than 300 pounds.

So, in 2011, while a college student in Pittsburgh, she decided to have gastric band surgery. Doctors placed a synthetic belt around her stomach to limit what she could eat. It seemed like a good option at the time and, after her surgery, she lost about 60 pounds.

But the benefits didn’t last. In the months that followed, she had pain and other complications. Worst of all, she eventually regained all the weight she’d lost – and then some. By 2016, she weighed 350 pounds and was becoming prediabetic.

That’s when she decided to have the band removed and, on her doctor’s recommendation, had gastric sleeve surgery.

Studies have found the sleeve surgeries carry fewer complications and a much higher success rate than gastric band procedures, which Ms. Furby’s experience has confirmed.

Today, at age 32, she’s down to 288 pounds and says she is on her way to hitting her ultimate goal of 200 pounds.

“The surgery has been a godsend,” she said. “I have not had any complications with it at all. The sleeve was life-changing for me.”

Ms. Furby’s experience has become more common as the risks, complications, and failures of gastric band surgeries have been rising over the past decade.

More band patients are choosing to have conversion surgery to gastric sleeve and gastric bypass. At the same time, fewer doctors are doing gastric band procedures, because of problems like Ms. Furby’s.

According to the latest figures from the American Society for Metabolic and Bariatric Surgery, gastric band procedures account for fewer than 1% of the 256,000 bariatric operations done in the United States each year, while gastric sleeves add up to nearly 60%. That makes sleeve surgeries the most commonly performed bariatric operation today.

By comparison, 35% of bariatric surgeries were gastric band procedures in 2011, while sleeve operations accounted for under 18%.

Ms. Furby’s surgeon, Anita P. Courcoulas, MD, said the trend is being driven by many of the things Ms.Furby experienced firsthand.

Dr. Courcoulas, chief of minimally invasive bariatric and general surgery at the University of Pittsburgh, said there are two main reasons for the decline in gastric band procedures.

“It has been shown to be less effective for weight loss [than] other bariatric surgical procedures, and band intolerance often results in band removal,” she noted.

Gastric sleeve, followed by gastric bypass, are the two most commonly performed operations in the United States and worldwide, she said.

Dr. Courcoulas said the shift from gastric bypass to gastric sleeve procedures “is likely driven by the decline in the band usage, patient preferences for a less invasive operation, such as the sleeve compared to bypass, and surgeon preferences about which operation(s) to offer a given patient.”

Ali Aminian, MD, director of the Bariatric and Metabolic Institute at the Cleveland Clinic, agrees that gastric band complications and failures, in addition to ineffective weight loss, are behind the trend, driving patients and doctors to choose safer and more effective procedures.

He said the Cleveland Clinic no longer does band operations, and he has done a lot of conversions.

“Around 50%-60% of [gastric band] patients require reoperation to take care of the complications,” he says. “So, when you have a surgery where more than half of the time the patients require reoperation, we cannot claim that’s a safe operation.”
 

Evolution in bariatric surgery

Bariatric surgeries for weight loss date back to the 1950s and 1960s, when surgeons at the University of Minnesota first did experimental bypass operations. Adjustable gastric banding appeared in the late 1970s and early 1980s.

But these procedures didn’t gain widespread mainstream use until gastric band procedures gained full Food and Drug Administration approval in 2001. Clinical trials have found people who have bariatric surgery have a significantly lower risk of heart disease and other obesity-related health problems.

In the decade that followed the FDA’s approval of gastric band surgery, it became a popular weight loss procedure, accounting for more than a third of all bariatric surgeries by 2011.

“Fifteen to 20 years ago, [gastric] band was the most commonly performed procedure for bariatric surgery worldwide and in the United States,” Dr. Aminian said. “It was very easy to do, it was quick – it takes 20 minutes to do the procedure – recovery was short, and initially patients had great outcomes. They would lose weight and were healthy.”

But over the past decade, surgeons found that patients often regained the weight they’d lost, and complication and failure rates rose.

“Because the [gastric] band is a foreign body that we place inside the body, many patients had complications related to that foreign body,” Dr. Aminian said.

The band can sometimes move or be displaced, causing blockage of the stomach, experts noted. Other common complications include nausea, vomiting, acid reflux, and esophageal issues (such as a hard time swallowing). Some patients feel pain, constant food cravings, or that they can’t eat or drink anything. And painful infections and other problems can develop with the tubing or the port placed under the skin that is connected to the band, which doctors use to make adjustments after surgery.

“Scar tissue can also form around the [gastric] band that can cause a blockage in the stomach,” Dr. Aminian said. “Then if the band is too tight, it can erode into the stomach tissue or even go inside the stomach and cause perforation or bleeding.”

By contrast, gastric sleeve and bypass procedures have been found to be safer, result in longer-lasting weight loss, carry fewer complications, and require fewer patient reoperations. Dr. Aminian estimates that 2%-3% of patients need second operations.

Another key factor: Metabolic ‘reset’

Sleeve and bypass procedures offer another critical advantage over band operations: They help reset the body’s metabolism better, changing appetite- and weight-related hormones in the body.

Those hormones can affect food cravings, help people feel full after eating, or boost weight gain in ways that can trump willpower, experts say.

“The [gastric] band doesn’t change the hormones in the body, it’s just a restrictive band around the esophagus or the upper part of the stomach, so it limits the patient’s ability to eat too much,” Dr. Aminian said. “That’s why it doesn’t have the metabolic effects.”

But other procedures, like the gastric sleeve, change the hormones in the body. Removing the source of those hormones means the patient won’t have the same appetite, Dr. Aminian said.

“And that’s why it’s very effective. The problem with the [gastric] band is the patient always has the feeling and desire to eat – they’re always hungry. That’s why in the long run, they fail,” he said.

“They change the setpoints,” Dr. Aminian said. “When the hormones in your body change, the [metabolic] setpoint in the brain also changes.”

He likens the metabolic setpoint to a thermostat in your home that regulates temperature inside.

“When a patient goes on a diet or goes on the [gastric] band, the thermostat doesn’t change,” he says. “They may lose some weight, but they’re going to regain it because the thermostat is the same. But when the hormones in your body change, then the thermostat will change and you’re not going to regain the weight that you have lost.”

Sachin Kukreja, MD, a surgeon and CEO at DFW Bariatrics and General Surgery in Dallas, said he believes these metabolic changes are the biggest things behind successful surgeries.

“People synonymize bariatric surgery with weight loss surgery, but really the metrics we should be using are more related to metabolic measures,” said Dr. Kukreja, who hasn’t done a band surgery since 2013. “And so, the metabolic parameters that change with bariatric surgery are much more significant in the setting with sleeve and gastric sleeve, and much less significant with [gastric] band.”

David Arterburn, MD, agrees that resetting metabolism is important but said the issue is “controversial and challenging” among bariatric surgeons.

“The metabolic setpoint is the idea that we have a biologically controlled set body weight that we will always return to. Clearly, this is not the case for everyone, as some people lose and maintain long-term weight loss,” said Dr. Arterburn, a general internist and bariatric surgery researcher at Kaiser Permanente Washington Health Research Institute in Seattle.
 

Postop lifestyle changes critical to success

Bariatric surgeons and patients alike also say that no surgical procedure is a magic-bullet solution for weight loss. Patients who have any type of bariatric surgery must embrace postop lifestyle changes – adopting healthier diets, getting more exercise, cutting out unhealthy habits – to lose weight and maintain weight loss.

Jan Lasecki, 54, a health care specialist in Akron, Ohio, who had band-to-sleeve conversion surgery in 2020, said the postop follow-up was at least as important as the surgery itself in helping her shed pounds.

She said at first, she chose gastric band surgery several years ago because it was “less invasive” than gastric sleeve or bypass. But while she lost about 50 pounds, she regained it after about 6 years and had other complications.

So, 2 years ago, Ms. Lasecki had two surgeries 6 months apart – one to remove her band, and a second to create a gastric sleeve. And the results, she said, have been very successful, in part because of the changes she made after surgery, with the help of her doctor’s staff.

“I have now lost about 90 pounds and have kept if off since surgery,” she says. “I would tell anyone considering any bariatric surgery, it was definitely worth it [and] having the sleeve resulted in greater weight loss.”

The follow-up was key to the success, she said.

The staff “have the tools and support to help you when you tend to fall back on old behaviors and start to regain weight,” Ms. Lasecki said. “They can help you before it gets out of control. I had no issues following either procedure from a surgery perspective.”

Sally and Robert Cordova – who had gastric bypass and sleeve surgeries, respectively, 3 years ago – agreed that the postop lifestyle changes are critical to success.

“When we agreed to have this surgery, we agreed that this will be a lifestyle change for the rest of our lives,” said Sally, 48, an accounting specialist who’s lost 150 pounds – half her body weight – since her surgery. “You can’t just get to your ideal weight and then stop.”

Robert, 47, a federal border control agent whose workmates nicknamed him “Big Rob” when he tipped the scales at 336 pounds, said it’s a mistake to think of the surgery as a “magic-bullet” solution to obesity. There’s more to it than that, he said.

“One of the things I like about the process I’ve taken is, in my opinion, they set you up for success,” he said. “Because it’s not just having the surgery and you’re done; it’s all the classes educating you about all the lifestyle changes you have to do, and starting them before the surgery. The only people that I know personally who haven’t been successful with the surgery are those who haven’t made the lifestyle changes.”

Today, at 230 pounds, Robert says he’s never felt better.

“I feel great,” he says. “I have become more active, obviously doing everything is a lot easier. It got to the point where it was a task to just tying up my shoes!”
 

Should band patients convert to sleeve or bypass?

Bariatric surgeons interviewed for this article were reluctant to say that all people who had gastric band procedures should convert to gastric sleeve or bypass. But they made it clear that sleeve and bypass procedures are safer and more effective than gastric band surgery, which is why it is rarely done today.

“If a patient experiences poor weight loss or complications from a band, they can consider conversion/revision to a sleeve or bypass,” said Dr. Courcoulas, echoing the views of other doctors.

“The choice of revision procedure should be based on patient factors, including diabetes and total weight. Converting a band to a sleeve is a technically easier operation, and some studies show that there are fewer complications, compared to conversion to a bypass. These considerations need to be balanced with data that show that both weight loss and metabolic improvements such as diabetes are greater after bypass, compared to sleeve.”

Doctors and experts also say it’s important for patients who are considering a gastric band conversion to gastric sleeve or bypass to understand the differences among these three primary procedures, all endorsed by the American Society for Metabolic and Bariatric Surgery.

Here’s a primer, including the pros and cons of each procedure:
 

Gastric band

In gastric band surgery, an adjustable gastric band made of silicone is placed around the top part of the stomach, creating a small pouch above it, to limit the amount of food a person can eat. The size of the opening between the pouch and the stomach can be adjusted with fluid injections through a port placed underneath the skin.

Food goes through the stomach but is limited by the smaller opening of the band.

Advantages:

• Lowest rate of complications right after surgery.
• No division of the stomach or intestines.
• Patients go home on the day of surgery, and recovery is quick.
• The band can be removed, if necessary.

Disadvantages:

• The band may need to be adjusted from time to time, and patients must make monthly office visits during the first year.
• There’s less weight loss than with other surgical procedures.
• It comes with the risk of band movement (slippage) or damage to the stomach over time (erosion).
• The surgery means that a foreign implant has to remain in the body.
• It has a high rate of reoperation.
• The surgery can bring swallowing problems, enlargement of the esophagus, and other complications.

Gastric sleeve

For laparoscopic sleeve gastrectomy – often called gastric sleeve – surgeons remove about 80% of the stomach, so the remaining stomach is the size and shape of a banana.

The new, smaller stomach holds less food and liquid, reducing how much food (and how many calories) the patient can get. By removing the portion of the stomach that produces hunger and appetite hormones, the surgery also helps reset the body’s metabolism – decreasing hunger, increasing feelings of fullness, and allowing the body to reach and maintain a healthy weight as well as control blood sugar.

Advantages:

• It’s technically simple and has a short surgery time.
• It can be done in certain patients with high-risk medical conditions.
• It may be the first step for patients with severe obesity or as a bridge to gastric bypass.
• The surgery brings effective weight loss and improvement of obesity-related conditions (typically 50%-60%, by Mayo Clinic estimates), with a low complication rate (2%-3%).

Disadvantages:

• Nonreversible procedure.
• May worsen or cause new reflux and heartburn.
• Less impact on metabolism, compared to bypass procedures.

Gastric bypass

Gastric bypass, also known as the Roux-en-Y gastric bypass (French for “in the form of a Y”) is another effective procedure used to treat obesity and obesity-related diseases (done laparoscopically since the 1990s).

For the operation, surgeons divide the stomach into a smaller top portion (pouch) about the size of an egg, then the larger part of the stomach is bypassed and no longer stores or digests food.

The small intestine is divided and connected to the new egg-sized stomach pouch to allow food to pass.

Gastric bypass works by limiting the amount of food and calories a patient can consume. It also decreases hunger and increases fullness, allowing the patient to reach and maintain a healthy weight. The impact on hormones and metabolic health often results in improvement of diabetes and helps patients with reflux.

Advantages:

• Reliable and long-lasting weight loss.
• Effective for remission of obesity-associated conditions.
• Effective weight loss (60%-70%, by Mayo Clinic estimates).

Disadvantages:

• Technically more complex when compared to gastric sleeve or band.
• More vitamin and mineral deficiencies than with gastric sleeve or band.
• Risk for small bowel complications and obstruction, as well as ulcers, especially with NSAID or tobacco use.
• May cause “dumping syndrome,” a feeling of sickness after eating or drinking, especially sweets.

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

Editor’s Note: This story has been updated to properly identify a product referenced in the story.

The glucagon-like peptide-1 (GLP-1) receptor agonist liraglutide (Saxenda, Novo Nordisk) was safe and effective for treating weight regain after Roux-en-Y gastric bypass (RYGB), in a randomized controlled trial.

That is, 132 patients who had lost at least 25% of their initial weight after RYGB and then gained at least 10% back were randomized 2:1 to receive liraglutide plus frequent lifestyle advice from a registered dietitian or lifestyle advice alone.

After a year, 69%, 48%, and 24% of patients who had received liraglutide lost at least 5%, 10%, and 15% of their study entry weight, respectively. In contrast, only 5% of patients in the control group lost at least 5% of their weight and none lost at least 10% of their weight.

“Liraglutide 3.0 mg/day, with lifestyle modification, was significantly more effective than placebo in treating weight regain after RYGB without increased risk of serious adverse events,” Holly F. Lofton, MD, summarized this week in an oral session at ObesityWeek®, the annual meeting of The Obesity Society.

Dr. Lofton, a clinical associate professor of surgery and medicine, and director, weight management program, NYU, Langone Health, explained to this news organization that she initiated the study after attending a “packed” session about post bariatric surgery weight regain at a prior American Society of Metabolic and Bariatric Surgery conference.

“The lecturers recommended conservative measures (such as reiterating the diet recommendations, exercise, [and] counseling), and revisional surgeries,” she said in an email, but at the time “there was no literature that provided direction on which pharmacotherapies are best for this population.”

It was known that decreases in endogenous GLP-1 levels coincide with weight regain, and liraglutide (Saxenda) was the only GLP-1 agonist approved for chronic weight management at the time, so she devised the current study protocol.

The findings are especially helpful for patients who are not candidates for bariatric surgery revisions, she noted. Further research is needed to investigate the effect of newer GLP-1 agonists, such as semaglutide (Wegovy), on weight regain following different types of bariatric surgery.

Asked to comment, Wendy C. King, PhD, who was not involved with this research, said that more than two-thirds of patients treated with 3 mg/day subcutaneous liraglutide injections in the current study lost at least 5% of their initial weight a year later, and 20% of them attained a weight as low as, or lower than, their lowest weight after bariatric surgery (nadir weight).

“The fact that both groups received lifestyle counseling from registered dietitians for just over a year, but only patients in the liraglutide group lost weight, on average, speaks to the difficulty of losing weight following weight regain post–bariatric surgery,” added Dr. King, an associate professor of epidemiology at the University of Pittsburgh, Pennsylvania.

This study “provides data that may help clinicians and patients understand the potential effect of adding liraglutide 3.0 mg/day to their weight loss efforts,” she told this news organization in an email.

However, “given that 42% of those on liraglutide reported gastrointestinal-related side effects, patients should also be counseled on this potential outcome and given suggestions for how to minimize such side effects,” Dr. King suggested.
 

Weight regain common, repeat surgery entails risk

Weight regain is common even years after bariatric surgery. Repeat surgery entails some risk, and lifestyle approaches alone are rarely successful in reversing weight regain, Dr. Lofton told the audience.

The researchers enrolled 132 adults who had a mean weight of 134 kg (295 pounds) when they underwent RYGB, and who lost at least 25% of their initial weight (mean weight loss of 38%) after the surgery, but who also regained at least 10% of their initial weight.

At enrollment of the current study (baseline), the patients had had RYGB 18 months to 10 years earlier (mean 5.7 years earlier) and now had a mean weight of 99 kg (218 pounds) and a mean BMI of 35.6 kg/m². None of the patients had diabetes.  

The patients were randomized to receive liraglutide (n = 89, 84% women) or placebo (n = 43, 88% women) for 56 weeks.

They were a mean age of 48 years, and about 59% were White and 25% were Black.

All patients had clinic visits every 3 months where they received lifestyle counseling from a registered dietitian.

At 12 months, patients in the liraglutide group had lost a mean of 8.8% of their baseline weight, whereas those in the placebo group had gained a mean of 1.48% of their baseline weight.

There were no significant between-group differences in cardiometabolic variables.

None of the patients in the control group attained a weight that was as low as their nadir weight after RYGB.

The rates of nausea (25%), constipation (16%), and abdominal pain (10%) in the liraglutide group were higher than in the placebo group (7%, 14%, and 5%, respectively) but similar to rates of gastrointestinal side effects in other trials of this agent.

Dr. Lofton has disclosed receiving consulting fees and being on a speaker bureau for Novo Nordisk and receiving research funds from Boehringer Ingelheim, Eli Lilly, and Novo Nordisk. Dr. King has reported no relevant financial relationships.

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

The glucagon-like peptide-1 (GLP-1) receptor agonist liraglutide (Saxenda, Novo Nordisk) was safe and effective for treating weight regain after Roux-en-Y gastric bypass (RYGB), in a randomized controlled trial.

That is, 132 patients who had lost at least 25% of their initial weight after RYGB and then gained at least 10% back were randomized 2:1 to receive liraglutide plus frequent lifestyle advice from a registered dietitian or lifestyle advice alone.

After a year, 69%, 48%, and 24% of patients who had received liraglutide lost at least 5%, 10%, and 15% of their study entry weight, respectively. In contrast, only 5% of patients in the control group lost at least 5% of their weight and none lost at least 10% of their weight.

“Liraglutide 3.0 mg/day, with lifestyle modification, was significantly more effective than placebo in treating weight regain after RYGB without increased risk of serious adverse events,” Holly F. Lofton, MD, summarized this week in an oral session at ObesityWeek®, the annual meeting of The Obesity Society.

Dr. Lofton, a clinical associate professor of surgery and medicine, and director, weight management program, NYU, Langone Health, explained to this news organization that she initiated the study after attending a “packed” session about post bariatric surgery weight regain at a prior American Society of Metabolic and Bariatric Surgery conference.

“The lecturers recommended conservative measures (such as reiterating the diet recommendations, exercise, [and] counseling), and revisional surgeries,” she said in an email, but at the time “there was no literature that provided direction on which pharmacotherapies are best for this population.”

It was known that decreases in endogenous GLP-1 levels coincide with weight regain, and liraglutide (Saxenda) was the only GLP-1 agonist approved for chronic weight management at the time, so she devised the current study protocol.

The findings are especially helpful for patients who are not candidates for bariatric surgery revisions, she noted. Further research is needed to investigate the effect of newer GLP-1 agonists, such as semaglutide (Wegovy), on weight regain following different types of bariatric surgery.

Asked to comment, Wendy C. King, PhD, who was not involved with this research, said that more than two-thirds of patients treated with 3 mg/day subcutaneous liraglutide injections in the current study lost at least 5% of their initial weight a year later, and 20% of them attained a weight as low as, or lower than, their lowest weight after bariatric surgery (nadir weight).

“The fact that both groups received lifestyle counseling from registered dietitians for just over a year, but only patients in the liraglutide group lost weight, on average, speaks to the difficulty of losing weight following weight regain post–bariatric surgery,” added Dr. King, an associate professor of epidemiology at the University of Pittsburgh, Pennsylvania.

This study “provides data that may help clinicians and patients understand the potential effect of adding liraglutide 3.0 mg/day to their weight loss efforts,” she told this news organization in an email.

However, “given that 42% of those on liraglutide reported gastrointestinal-related side effects, patients should also be counseled on this potential outcome and given suggestions for how to minimize such side effects,” Dr. King suggested.
 

Weight regain common, repeat surgery entails risk

Weight regain is common even years after bariatric surgery. Repeat surgery entails some risk, and lifestyle approaches alone are rarely successful in reversing weight regain, Dr. Lofton told the audience.

The researchers enrolled 132 adults who had a mean weight of 134 kg (295 pounds) when they underwent RYGB, and who lost at least 25% of their initial weight (mean weight loss of 38%) after the surgery, but who also regained at least 10% of their initial weight.

At enrollment of the current study (baseline), the patients had had RYGB 18 months to 10 years earlier (mean 5.7 years earlier) and now had a mean weight of 99 kg (218 pounds) and a mean BMI of 35.6 kg/m². None of the patients had diabetes.  

The patients were randomized to receive liraglutide (n = 89, 84% women) or placebo (n = 43, 88% women) for 56 weeks.

They were a mean age of 48 years, and about 59% were White and 25% were Black.

All patients had clinic visits every 3 months where they received lifestyle counseling from a registered dietitian.

At 12 months, patients in the liraglutide group had lost a mean of 8.8% of their baseline weight, whereas those in the placebo group had gained a mean of 1.48% of their baseline weight.

There were no significant between-group differences in cardiometabolic variables.

None of the patients in the control group attained a weight that was as low as their nadir weight after RYGB.

The rates of nausea (25%), constipation (16%), and abdominal pain (10%) in the liraglutide group were higher than in the placebo group (7%, 14%, and 5%, respectively) but similar to rates of gastrointestinal side effects in other trials of this agent.

Dr. Lofton has disclosed receiving consulting fees and being on a speaker bureau for Novo Nordisk and receiving research funds from Boehringer Ingelheim, Eli Lilly, and Novo Nordisk. Dr. King has reported no relevant financial relationships.

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

The glucagon-like peptide-1 (GLP-1) receptor agonist liraglutide (Saxenda, Novo Nordisk) was safe and effective for treating weight regain after Roux-en-Y gastric bypass (RYGB), in a randomized controlled trial.

That is, 132 patients who had lost at least 25% of their initial weight after RYGB and then gained at least 10% back were randomized 2:1 to receive liraglutide plus frequent lifestyle advice from a registered dietitian or lifestyle advice alone.

After a year, 69%, 48%, and 24% of patients who had received liraglutide lost at least 5%, 10%, and 15% of their study entry weight, respectively. In contrast, only 5% of patients in the control group lost at least 5% of their weight and none lost at least 10% of their weight.

“Liraglutide 3.0 mg/day, with lifestyle modification, was significantly more effective than placebo in treating weight regain after RYGB without increased risk of serious adverse events,” Holly F. Lofton, MD, summarized this week in an oral session at ObesityWeek®, the annual meeting of The Obesity Society.

Dr. Lofton, a clinical associate professor of surgery and medicine, and director, weight management program, NYU, Langone Health, explained to this news organization that she initiated the study after attending a “packed” session about post bariatric surgery weight regain at a prior American Society of Metabolic and Bariatric Surgery conference.

“The lecturers recommended conservative measures (such as reiterating the diet recommendations, exercise, [and] counseling), and revisional surgeries,” she said in an email, but at the time “there was no literature that provided direction on which pharmacotherapies are best for this population.”

It was known that decreases in endogenous GLP-1 levels coincide with weight regain, and liraglutide (Saxenda) was the only GLP-1 agonist approved for chronic weight management at the time, so she devised the current study protocol.

The findings are especially helpful for patients who are not candidates for bariatric surgery revisions, she noted. Further research is needed to investigate the effect of newer GLP-1 agonists, such as semaglutide (Wegovy), on weight regain following different types of bariatric surgery.

Asked to comment, Wendy C. King, PhD, who was not involved with this research, said that more than two-thirds of patients treated with 3 mg/day subcutaneous liraglutide injections in the current study lost at least 5% of their initial weight a year later, and 20% of them attained a weight as low as, or lower than, their lowest weight after bariatric surgery (nadir weight).

“The fact that both groups received lifestyle counseling from registered dietitians for just over a year, but only patients in the liraglutide group lost weight, on average, speaks to the difficulty of losing weight following weight regain post–bariatric surgery,” added Dr. King, an associate professor of epidemiology at the University of Pittsburgh, Pennsylvania.

This study “provides data that may help clinicians and patients understand the potential effect of adding liraglutide 3.0 mg/day to their weight loss efforts,” she told this news organization in an email.

However, “given that 42% of those on liraglutide reported gastrointestinal-related side effects, patients should also be counseled on this potential outcome and given suggestions for how to minimize such side effects,” Dr. King suggested.
 

Weight regain common, repeat surgery entails risk

Weight regain is common even years after bariatric surgery. Repeat surgery entails some risk, and lifestyle approaches alone are rarely successful in reversing weight regain, Dr. Lofton told the audience.

The researchers enrolled 132 adults who had a mean weight of 134 kg (295 pounds) when they underwent RYGB, and who lost at least 25% of their initial weight (mean weight loss of 38%) after the surgery, but who also regained at least 10% of their initial weight.

At enrollment of the current study (baseline), the patients had had RYGB 18 months to 10 years earlier (mean 5.7 years earlier) and now had a mean weight of 99 kg (218 pounds) and a mean BMI of 35.6 kg/m². None of the patients had diabetes.  

The patients were randomized to receive liraglutide (n = 89, 84% women) or placebo (n = 43, 88% women) for 56 weeks.

They were a mean age of 48 years, and about 59% were White and 25% were Black.

All patients had clinic visits every 3 months where they received lifestyle counseling from a registered dietitian.

At 12 months, patients in the liraglutide group had lost a mean of 8.8% of their baseline weight, whereas those in the placebo group had gained a mean of 1.48% of their baseline weight.

There were no significant between-group differences in cardiometabolic variables.

None of the patients in the control group attained a weight that was as low as their nadir weight after RYGB.

The rates of nausea (25%), constipation (16%), and abdominal pain (10%) in the liraglutide group were higher than in the placebo group (7%, 14%, and 5%, respectively) but similar to rates of gastrointestinal side effects in other trials of this agent.

Dr. Lofton has disclosed receiving consulting fees and being on a speaker bureau for Novo Nordisk and receiving research funds from Boehringer Ingelheim, Eli Lilly, and Novo Nordisk. Dr. King has reported no relevant financial relationships.

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

Five years out, sleeve gastrectomy had a lower risk of mortality, complications, and reinterventions than gastric bypass, but there was a higher risk of surgical revision, including conversion to another bariatric surgery, gastrectomy, or anastomotic revision, according to a new analysis.

herjua/Thinkstock

Sleeve gastrectomy has gained rapid popularity, and now represents 60% of all bariatric procedures. It has demonstrated good efficacy and short-term safety, it is easier to perform than laparoscopic Roux-en-Y gastric bypass, and it is a safe option for high-risk patients, authors led by Ryan Howard, MD, of University of Michigan, Ann Arbor, wrote in JAMA Surgery.

Still, there are few comparative data on the long-term efficacy of the two procedures. Randomized, controlled trials have conducted long-term follow-up, but their small size has made it difficult to detect differences in rare outcomes. Observational studies are limited by the potential for bias. A novel approach to limiting bias is instrumental variables analysis, which controls for possible confounding using a factor that impacts treatment choice, but not patient outcome, to control for possible confounders. Studies using this approach confirmed the superior safety profile of sleeve gastrectomy in the short term.

The current study’s authors, used that method to examined 5-year outcomes in a Medicare population, in which obesity and its complications are especially frequent. Partly because of that lack of data, the Medical Evidence Development and Coverage Committee has called for more data in older patients and in patients with disabilities.

The researchers analyzed data from 95,405 Medicare claims between 2012 and 2018, using state-level variation in sleeve gastrectomy as the instrumental variable.

At 5 years, sleeve gastrectomy was associated with a lower cumulative frequency of mortality (4.27%; 95% confidence interval, 4.25%-4.30% vs. 5.67%; 95% CI, 5.63%-5.69%]), complications (22.10%; 95% CI, 22.06%-22.13% vs. 29.03%; 95% CI, 28.99%-29.08%), and reintervention (25.23%; 95% CI, 25.19%-25.27% vs. 33.57%; 95% CI, 33.52%-33.63%). At 5 years, surgical revision was more common in the sleeve gastrectomy group (2.91%; 95% CI, 2.90%-2.93% vs. 1.46%; 95% CI, 1.45%-1.47%).

The sleeve gastrectomy group had lower odds of all-cause hospitalization at 1 year (adjusted hazard ratio, 0.83; 95% CI, 0.80-0.86) and 3 years (aHR, 0.94; 95% CI, 0.90-0.98), as well as emergency department use at 1 year (aHR, 0.87; 95% CI, 0.84-0.90) and 3 years (aHR, 0.93; 95% CI, 0.90-0.97). There was no significant difference between the two groups at 5 years with respect to either outcome.

The effort to understand long-term outcomes of these two procedures has been challenging because follow-up is often incomplete, and because reporting isn’t always standardized, according Anita P. Courcoulas, MD, MPH, and Bestoun Ahmed, MD, in an accompanying editorial in JAMA Surgery. They noted that the differences in mortality is a new finding and the difference in surgical revisions confirmed something often seen in clinical practice. “Overall, these novel methods, which creatively balance unmeasured factors, have succeeded in providing important incremental findings about the long-term comparative safety outcomes between bariatric procedures that will be helpful in clinical practice,” the editorial authors wrote.

The complications discussed in the study are also difficult to interpret, according to Ali Aminian, MD, who is a professor of surgery and director of Bariatric and Metabolic Institute at Cleveland Clinic. They may be related to the surgery, or they may be complications that accrue as patients age. “So that doesn’t mean those were surgical complications, but [the findings are] in line with the other literature that [gastric sleeve] may be safer than gastric bypass, but in a different cohort of patients,” said Dr. Aminian, who was asked to comment.

“I thought it validated that which many of us in clinical practice see on a day to day basis,” said Shanu Kothari, MD, chair of surgery at Prisma Health, and the current president of American Society for Bariatric and Metabolic Surgery. He pointed out that the study was limited by its reliance on administrative claims, which makes it impossible to know the reduction in weight and obesity-related comorbid conditions following the procedures, as well as factors driving individual decisions: A surgeon might offer sleeve to a patient at higher risk of complications, but a gastric bypass to someone with more comorbidities. “What we don’t know is how to interpret this 35,000-foot view of Medicare data to that conversation with the patient sitting right in front of you,” said Dr. Kothari.

The authors similarly cited the “lack of clinical granularity in administrative claims data” among study limitations, as well as how the use of instrumental variables may leave the findings less applicable to patients more strongly indicated for one procedure over the other.

“Longer-term randomized clinical trials and observational studies are warranted to confirm these findings,” the study authors concluded. “Understanding the risk profile of various bariatric operations may further help patients and surgeons make the most appropriate decisions regarding plans of care.”

The study was funded by the National Institute of Diabetes and Digestive and Kidney Diseases. Some study authors and editorialists reported funding from various groups and institutions, such as the National Institutes of Health and the VA Ann Arbor Health System. Dr. Kothari and Dr. Aminian have no relevant financial disclosures.

Five years out, sleeve gastrectomy had a lower risk of mortality, complications, and reinterventions than gastric bypass, but there was a higher risk of surgical revision, including conversion to another bariatric surgery, gastrectomy, or anastomotic revision, according to a new analysis.

herjua/Thinkstock

Sleeve gastrectomy has gained rapid popularity, and now represents 60% of all bariatric procedures. It has demonstrated good efficacy and short-term safety, it is easier to perform than laparoscopic Roux-en-Y gastric bypass, and it is a safe option for high-risk patients, authors led by Ryan Howard, MD, of University of Michigan, Ann Arbor, wrote in JAMA Surgery.

Still, there are few comparative data on the long-term efficacy of the two procedures. Randomized, controlled trials have conducted long-term follow-up, but their small size has made it difficult to detect differences in rare outcomes. Observational studies are limited by the potential for bias. A novel approach to limiting bias is instrumental variables analysis, which controls for possible confounding using a factor that impacts treatment choice, but not patient outcome, to control for possible confounders. Studies using this approach confirmed the superior safety profile of sleeve gastrectomy in the short term.

The current study’s authors, used that method to examined 5-year outcomes in a Medicare population, in which obesity and its complications are especially frequent. Partly because of that lack of data, the Medical Evidence Development and Coverage Committee has called for more data in older patients and in patients with disabilities.

The researchers analyzed data from 95,405 Medicare claims between 2012 and 2018, using state-level variation in sleeve gastrectomy as the instrumental variable.

At 5 years, sleeve gastrectomy was associated with a lower cumulative frequency of mortality (4.27%; 95% confidence interval, 4.25%-4.30% vs. 5.67%; 95% CI, 5.63%-5.69%]), complications (22.10%; 95% CI, 22.06%-22.13% vs. 29.03%; 95% CI, 28.99%-29.08%), and reintervention (25.23%; 95% CI, 25.19%-25.27% vs. 33.57%; 95% CI, 33.52%-33.63%). At 5 years, surgical revision was more common in the sleeve gastrectomy group (2.91%; 95% CI, 2.90%-2.93% vs. 1.46%; 95% CI, 1.45%-1.47%).

The sleeve gastrectomy group had lower odds of all-cause hospitalization at 1 year (adjusted hazard ratio, 0.83; 95% CI, 0.80-0.86) and 3 years (aHR, 0.94; 95% CI, 0.90-0.98), as well as emergency department use at 1 year (aHR, 0.87; 95% CI, 0.84-0.90) and 3 years (aHR, 0.93; 95% CI, 0.90-0.97). There was no significant difference between the two groups at 5 years with respect to either outcome.

The effort to understand long-term outcomes of these two procedures has been challenging because follow-up is often incomplete, and because reporting isn’t always standardized, according Anita P. Courcoulas, MD, MPH, and Bestoun Ahmed, MD, in an accompanying editorial in JAMA Surgery. They noted that the differences in mortality is a new finding and the difference in surgical revisions confirmed something often seen in clinical practice. “Overall, these novel methods, which creatively balance unmeasured factors, have succeeded in providing important incremental findings about the long-term comparative safety outcomes between bariatric procedures that will be helpful in clinical practice,” the editorial authors wrote.

The complications discussed in the study are also difficult to interpret, according to Ali Aminian, MD, who is a professor of surgery and director of Bariatric and Metabolic Institute at Cleveland Clinic. They may be related to the surgery, or they may be complications that accrue as patients age. “So that doesn’t mean those were surgical complications, but [the findings are] in line with the other literature that [gastric sleeve] may be safer than gastric bypass, but in a different cohort of patients,” said Dr. Aminian, who was asked to comment.

“I thought it validated that which many of us in clinical practice see on a day to day basis,” said Shanu Kothari, MD, chair of surgery at Prisma Health, and the current president of American Society for Bariatric and Metabolic Surgery. He pointed out that the study was limited by its reliance on administrative claims, which makes it impossible to know the reduction in weight and obesity-related comorbid conditions following the procedures, as well as factors driving individual decisions: A surgeon might offer sleeve to a patient at higher risk of complications, but a gastric bypass to someone with more comorbidities. “What we don’t know is how to interpret this 35,000-foot view of Medicare data to that conversation with the patient sitting right in front of you,” said Dr. Kothari.

The authors similarly cited the “lack of clinical granularity in administrative claims data” among study limitations, as well as how the use of instrumental variables may leave the findings less applicable to patients more strongly indicated for one procedure over the other.

“Longer-term randomized clinical trials and observational studies are warranted to confirm these findings,” the study authors concluded. “Understanding the risk profile of various bariatric operations may further help patients and surgeons make the most appropriate decisions regarding plans of care.”

The study was funded by the National Institute of Diabetes and Digestive and Kidney Diseases. Some study authors and editorialists reported funding from various groups and institutions, such as the National Institutes of Health and the VA Ann Arbor Health System. Dr. Kothari and Dr. Aminian have no relevant financial disclosures.

Five years out, sleeve gastrectomy had a lower risk of mortality, complications, and reinterventions than gastric bypass, but there was a higher risk of surgical revision, including conversion to another bariatric surgery, gastrectomy, or anastomotic revision, according to a new analysis.

herjua/Thinkstock

Sleeve gastrectomy has gained rapid popularity, and now represents 60% of all bariatric procedures. It has demonstrated good efficacy and short-term safety, it is easier to perform than laparoscopic Roux-en-Y gastric bypass, and it is a safe option for high-risk patients, authors led by Ryan Howard, MD, of University of Michigan, Ann Arbor, wrote in JAMA Surgery.

Still, there are few comparative data on the long-term efficacy of the two procedures. Randomized, controlled trials have conducted long-term follow-up, but their small size has made it difficult to detect differences in rare outcomes. Observational studies are limited by the potential for bias. A novel approach to limiting bias is instrumental variables analysis, which controls for possible confounding using a factor that impacts treatment choice, but not patient outcome, to control for possible confounders. Studies using this approach confirmed the superior safety profile of sleeve gastrectomy in the short term.

The current study’s authors, used that method to examined 5-year outcomes in a Medicare population, in which obesity and its complications are especially frequent. Partly because of that lack of data, the Medical Evidence Development and Coverage Committee has called for more data in older patients and in patients with disabilities.

The researchers analyzed data from 95,405 Medicare claims between 2012 and 2018, using state-level variation in sleeve gastrectomy as the instrumental variable.

At 5 years, sleeve gastrectomy was associated with a lower cumulative frequency of mortality (4.27%; 95% confidence interval, 4.25%-4.30% vs. 5.67%; 95% CI, 5.63%-5.69%]), complications (22.10%; 95% CI, 22.06%-22.13% vs. 29.03%; 95% CI, 28.99%-29.08%), and reintervention (25.23%; 95% CI, 25.19%-25.27% vs. 33.57%; 95% CI, 33.52%-33.63%). At 5 years, surgical revision was more common in the sleeve gastrectomy group (2.91%; 95% CI, 2.90%-2.93% vs. 1.46%; 95% CI, 1.45%-1.47%).

The sleeve gastrectomy group had lower odds of all-cause hospitalization at 1 year (adjusted hazard ratio, 0.83; 95% CI, 0.80-0.86) and 3 years (aHR, 0.94; 95% CI, 0.90-0.98), as well as emergency department use at 1 year (aHR, 0.87; 95% CI, 0.84-0.90) and 3 years (aHR, 0.93; 95% CI, 0.90-0.97). There was no significant difference between the two groups at 5 years with respect to either outcome.

The effort to understand long-term outcomes of these two procedures has been challenging because follow-up is often incomplete, and because reporting isn’t always standardized, according Anita P. Courcoulas, MD, MPH, and Bestoun Ahmed, MD, in an accompanying editorial in JAMA Surgery. They noted that the differences in mortality is a new finding and the difference in surgical revisions confirmed something often seen in clinical practice. “Overall, these novel methods, which creatively balance unmeasured factors, have succeeded in providing important incremental findings about the long-term comparative safety outcomes between bariatric procedures that will be helpful in clinical practice,” the editorial authors wrote.

The complications discussed in the study are also difficult to interpret, according to Ali Aminian, MD, who is a professor of surgery and director of Bariatric and Metabolic Institute at Cleveland Clinic. They may be related to the surgery, or they may be complications that accrue as patients age. “So that doesn’t mean those were surgical complications, but [the findings are] in line with the other literature that [gastric sleeve] may be safer than gastric bypass, but in a different cohort of patients,” said Dr. Aminian, who was asked to comment.

“I thought it validated that which many of us in clinical practice see on a day to day basis,” said Shanu Kothari, MD, chair of surgery at Prisma Health, and the current president of American Society for Bariatric and Metabolic Surgery. He pointed out that the study was limited by its reliance on administrative claims, which makes it impossible to know the reduction in weight and obesity-related comorbid conditions following the procedures, as well as factors driving individual decisions: A surgeon might offer sleeve to a patient at higher risk of complications, but a gastric bypass to someone with more comorbidities. “What we don’t know is how to interpret this 35,000-foot view of Medicare data to that conversation with the patient sitting right in front of you,” said Dr. Kothari.

The authors similarly cited the “lack of clinical granularity in administrative claims data” among study limitations, as well as how the use of instrumental variables may leave the findings less applicable to patients more strongly indicated for one procedure over the other.

“Longer-term randomized clinical trials and observational studies are warranted to confirm these findings,” the study authors concluded. “Understanding the risk profile of various bariatric operations may further help patients and surgeons make the most appropriate decisions regarding plans of care.”

The study was funded by the National Institute of Diabetes and Digestive and Kidney Diseases. Some study authors and editorialists reported funding from various groups and institutions, such as the National Institutes of Health and the VA Ann Arbor Health System. Dr. Kothari and Dr. Aminian have no relevant financial disclosures.

Bariatric surgery is associated with a reduction in risk of major adverse cardiac events (MACE), and Roux-en-Y gastric bypass (RYGB) is linked to a greater reduction than sleeve gastrectomy (SG).

Those are the key findings of a retrospective analysis of a large group of patients who received care at the Cleveland Clinic between 1998 and 2017. MACE is defined as first occurrence of coronary artery events, cerebrovascular events, heart failure, nephropathy, atrial fibrillation, and all-cause mortality.

“I think what it tells us is that, in making these choices and in counseling patients about the potential advantages of undergoing bariatric surgery for their obesity and diabetes, that they should know that they’re more likely to be protected by a Roux-en-Y gastric bypass, although certainly sleeve gastrectomy is effective,” said study coauthor Steven E. Nissen, MD, who is the chief academic officer of the Heart and Vascular Institute at the Cleveland Clinic.

Previous studies have shown a benefit to metabolic surgery in patients with type 2 diabetes and obesity, improving diabetes control and altering cardiometabolic risk factors. Others have shown a link between surgery and reduced mortality. Most studies examined the impact of RYGB. SG is a newer procedure, but its relative simplicity and lower complication rate have helped it become the most commonly performed metabolic surgery in the world.

“There was no study to compare gastric bypass and sleeve gastrectomy head to head in terms of reduction in risk of cardiovascular disease. There are studies comparing these two procedures for diabetes control and weight loss, but not specifically in terms of effects on their risk of developing cardiovascular disease. That’s the unique feature of this study,” said lead author Ali Aminian, MD, who is director of the Bariatric and Metabolic Institute at the Cleveland Clinic.

The researchers included 2,287 adults with type 2 diabetes and a body mass index of at least 30 kg/m², with no history of solid organ transplant, severe heart failure, or active cancer. 1,362 underwent RYGB, and 693 SG. Outcomes were compared with 11,435 matched nonsurgical patients.

At 5 years, 13.7% of the RYGB group experienced a MACE (95% confidence interval, 11.4-15.9), compared with 24.7% of the SG group for a relative reduction of 33% (95% CI, 19.0-30.0; adjusted hazard ratio, 0.77; P = .035). The nonsurgical group had a 5-year MACE incidence of 30.4% (95% CI, 29.4-31.5). Compared with usual care, the risk of MACE was lower in both the RYGB group (HR, 0.53; P < .001) and the SG group (HR, 0.69; P < .001). The researchers also analyzed the cumulative incidence of all-cause mortality, myocardial infarction, and ischemic stroke (three-component MACE) at 5 years. The cumulative incidence of three-component MACE at 5 years was 15.5% in the usual care group, 6.4% in the RYGB group (HR, 0.53 versus usual care; P < .001) and 11.8% in the SG group (HR vs. usual care, 0.65; P = .006).

The RYGB group had less nephropathy at 5 years (2.8% vs. 8.3%; HR, 0.47; P = .005), and experienced a greater reduction in weight, glycated hemoglobin, and diabetes and cardiovascular medication use. At 5 years, RYGB was associated with a higher frequency of upper endoscopy (45.8% vs. 35.6%, P < .001) and abdominal surgical procedures (10.8% vs. 5.4%, P = .001), compared with SG.

“Both procedures are extremely safe and extremely effective,” said Dr. Aminian. He pointed out the need to consider multiple factors when choosing between the procedures, including overall health, weight, comorbidities, and the patient’s values and goals.

A few factors may be contraindicated for one procedure or another. The sleeve may worsen severe reflux disease, while the gastric bypass may interfere more with absorption of psychiatric medications. Some patients may have multiple comorbidities that could point to a less risky procedure. “Decision-making should not be solely based on findings of this study. All these conditions need to be considered when patients and surgeons make a final decision about the most appropriate procedure,” said Dr. Aminian.

Dr. Nissen noted that the associations were wide ranging, including classic outcomes like death, stroke, and heart failure, but also extending to heart failure, coronary events, cerebral vascular events, nephropathy, and atrial fibrillation. “I found the nephropathy results to be amongst the most striking, that Roux-en-Y really dramatically reduced the risk of neuropathy,” he added. That’s a particularly important point because end-stage renal disease is a common cause of diabetes mortality.

Dr. Nissen acknowledged the limitations of the retrospective nature of the study, though he feels confident that the relationships are causal. “Bariatric surgery desperately needs a randomized, controlled trial, where both groups get intensive dietary and lifestyle counseling, but one group gets metabolic surgery and the other doesn’t. Given the dramatic effects in diabetic patients of reducing their hemoglobin A1c in a sustained way, reducing their body weight. We think these are very strong data to suggest that we have a major reduction in all the endpoints. If we’re right about this, the randomized controlled trial will show that dramatic effect, and will convince even the skeptics that metabolic surgery is the best way to go.”

Bariatric surgery is associated with a reduction in risk of major adverse cardiac events (MACE), and Roux-en-Y gastric bypass (RYGB) is linked to a greater reduction than sleeve gastrectomy (SG).

Those are the key findings of a retrospective analysis of a large group of patients who received care at the Cleveland Clinic between 1998 and 2017. MACE is defined as first occurrence of coronary artery events, cerebrovascular events, heart failure, nephropathy, atrial fibrillation, and all-cause mortality.

“I think what it tells us is that, in making these choices and in counseling patients about the potential advantages of undergoing bariatric surgery for their obesity and diabetes, that they should know that they’re more likely to be protected by a Roux-en-Y gastric bypass, although certainly sleeve gastrectomy is effective,” said study coauthor Steven E. Nissen, MD, who is the chief academic officer of the Heart and Vascular Institute at the Cleveland Clinic.

Previous studies have shown a benefit to metabolic surgery in patients with type 2 diabetes and obesity, improving diabetes control and altering cardiometabolic risk factors. Others have shown a link between surgery and reduced mortality. Most studies examined the impact of RYGB. SG is a newer procedure, but its relative simplicity and lower complication rate have helped it become the most commonly performed metabolic surgery in the world.

“There was no study to compare gastric bypass and sleeve gastrectomy head to head in terms of reduction in risk of cardiovascular disease. There are studies comparing these two procedures for diabetes control and weight loss, but not specifically in terms of effects on their risk of developing cardiovascular disease. That’s the unique feature of this study,” said lead author Ali Aminian, MD, who is director of the Bariatric and Metabolic Institute at the Cleveland Clinic.

The researchers included 2,287 adults with type 2 diabetes and a body mass index of at least 30 kg/m², with no history of solid organ transplant, severe heart failure, or active cancer. 1,362 underwent RYGB, and 693 SG. Outcomes were compared with 11,435 matched nonsurgical patients.

At 5 years, 13.7% of the RYGB group experienced a MACE (95% confidence interval, 11.4-15.9), compared with 24.7% of the SG group for a relative reduction of 33% (95% CI, 19.0-30.0; adjusted hazard ratio, 0.77; P = .035). The nonsurgical group had a 5-year MACE incidence of 30.4% (95% CI, 29.4-31.5). Compared with usual care, the risk of MACE was lower in both the RYGB group (HR, 0.53; P < .001) and the SG group (HR, 0.69; P < .001). The researchers also analyzed the cumulative incidence of all-cause mortality, myocardial infarction, and ischemic stroke (three-component MACE) at 5 years. The cumulative incidence of three-component MACE at 5 years was 15.5% in the usual care group, 6.4% in the RYGB group (HR, 0.53 versus usual care; P < .001) and 11.8% in the SG group (HR vs. usual care, 0.65; P = .006).

The RYGB group had less nephropathy at 5 years (2.8% vs. 8.3%; HR, 0.47; P = .005), and experienced a greater reduction in weight, glycated hemoglobin, and diabetes and cardiovascular medication use. At 5 years, RYGB was associated with a higher frequency of upper endoscopy (45.8% vs. 35.6%, P < .001) and abdominal surgical procedures (10.8% vs. 5.4%, P = .001), compared with SG.

“Both procedures are extremely safe and extremely effective,” said Dr. Aminian. He pointed out the need to consider multiple factors when choosing between the procedures, including overall health, weight, comorbidities, and the patient’s values and goals.

A few factors may be contraindicated for one procedure or another. The sleeve may worsen severe reflux disease, while the gastric bypass may interfere more with absorption of psychiatric medications. Some patients may have multiple comorbidities that could point to a less risky procedure. “Decision-making should not be solely based on findings of this study. All these conditions need to be considered when patients and surgeons make a final decision about the most appropriate procedure,” said Dr. Aminian.

Dr. Nissen noted that the associations were wide ranging, including classic outcomes like death, stroke, and heart failure, but also extending to heart failure, coronary events, cerebral vascular events, nephropathy, and atrial fibrillation. “I found the nephropathy results to be amongst the most striking, that Roux-en-Y really dramatically reduced the risk of neuropathy,” he added. That’s a particularly important point because end-stage renal disease is a common cause of diabetes mortality.

Dr. Nissen acknowledged the limitations of the retrospective nature of the study, though he feels confident that the relationships are causal. “Bariatric surgery desperately needs a randomized, controlled trial, where both groups get intensive dietary and lifestyle counseling, but one group gets metabolic surgery and the other doesn’t. Given the dramatic effects in diabetic patients of reducing their hemoglobin A1c in a sustained way, reducing their body weight. We think these are very strong data to suggest that we have a major reduction in all the endpoints. If we’re right about this, the randomized controlled trial will show that dramatic effect, and will convince even the skeptics that metabolic surgery is the best way to go.”

Bariatric surgery is associated with a reduction in risk of major adverse cardiac events (MACE), and Roux-en-Y gastric bypass (RYGB) is linked to a greater reduction than sleeve gastrectomy (SG).

Those are the key findings of a retrospective analysis of a large group of patients who received care at the Cleveland Clinic between 1998 and 2017. MACE is defined as first occurrence of coronary artery events, cerebrovascular events, heart failure, nephropathy, atrial fibrillation, and all-cause mortality.

“I think what it tells us is that, in making these choices and in counseling patients about the potential advantages of undergoing bariatric surgery for their obesity and diabetes, that they should know that they’re more likely to be protected by a Roux-en-Y gastric bypass, although certainly sleeve gastrectomy is effective,” said study coauthor Steven E. Nissen, MD, who is the chief academic officer of the Heart and Vascular Institute at the Cleveland Clinic.

Previous studies have shown a benefit to metabolic surgery in patients with type 2 diabetes and obesity, improving diabetes control and altering cardiometabolic risk factors. Others have shown a link between surgery and reduced mortality. Most studies examined the impact of RYGB. SG is a newer procedure, but its relative simplicity and lower complication rate have helped it become the most commonly performed metabolic surgery in the world.

“There was no study to compare gastric bypass and sleeve gastrectomy head to head in terms of reduction in risk of cardiovascular disease. There are studies comparing these two procedures for diabetes control and weight loss, but not specifically in terms of effects on their risk of developing cardiovascular disease. That’s the unique feature of this study,” said lead author Ali Aminian, MD, who is director of the Bariatric and Metabolic Institute at the Cleveland Clinic.

The researchers included 2,287 adults with type 2 diabetes and a body mass index of at least 30 kg/m², with no history of solid organ transplant, severe heart failure, or active cancer. 1,362 underwent RYGB, and 693 SG. Outcomes were compared with 11,435 matched nonsurgical patients.

At 5 years, 13.7% of the RYGB group experienced a MACE (95% confidence interval, 11.4-15.9), compared with 24.7% of the SG group for a relative reduction of 33% (95% CI, 19.0-30.0; adjusted hazard ratio, 0.77; P = .035). The nonsurgical group had a 5-year MACE incidence of 30.4% (95% CI, 29.4-31.5). Compared with usual care, the risk of MACE was lower in both the RYGB group (HR, 0.53; P < .001) and the SG group (HR, 0.69; P < .001). The researchers also analyzed the cumulative incidence of all-cause mortality, myocardial infarction, and ischemic stroke (three-component MACE) at 5 years. The cumulative incidence of three-component MACE at 5 years was 15.5% in the usual care group, 6.4% in the RYGB group (HR, 0.53 versus usual care; P < .001) and 11.8% in the SG group (HR vs. usual care, 0.65; P = .006).

The RYGB group had less nephropathy at 5 years (2.8% vs. 8.3%; HR, 0.47; P = .005), and experienced a greater reduction in weight, glycated hemoglobin, and diabetes and cardiovascular medication use. At 5 years, RYGB was associated with a higher frequency of upper endoscopy (45.8% vs. 35.6%, P < .001) and abdominal surgical procedures (10.8% vs. 5.4%, P = .001), compared with SG.

“Both procedures are extremely safe and extremely effective,” said Dr. Aminian. He pointed out the need to consider multiple factors when choosing between the procedures, including overall health, weight, comorbidities, and the patient’s values and goals.

A few factors may be contraindicated for one procedure or another. The sleeve may worsen severe reflux disease, while the gastric bypass may interfere more with absorption of psychiatric medications. Some patients may have multiple comorbidities that could point to a less risky procedure. “Decision-making should not be solely based on findings of this study. All these conditions need to be considered when patients and surgeons make a final decision about the most appropriate procedure,” said Dr. Aminian.

Dr. Nissen noted that the associations were wide ranging, including classic outcomes like death, stroke, and heart failure, but also extending to heart failure, coronary events, cerebral vascular events, nephropathy, and atrial fibrillation. “I found the nephropathy results to be amongst the most striking, that Roux-en-Y really dramatically reduced the risk of neuropathy,” he added. That’s a particularly important point because end-stage renal disease is a common cause of diabetes mortality.

Dr. Nissen acknowledged the limitations of the retrospective nature of the study, though he feels confident that the relationships are causal. “Bariatric surgery desperately needs a randomized, controlled trial, where both groups get intensive dietary and lifestyle counseling, but one group gets metabolic surgery and the other doesn’t. Given the dramatic effects in diabetic patients of reducing their hemoglobin A1c in a sustained way, reducing their body weight. We think these are very strong data to suggest that we have a major reduction in all the endpoints. If we’re right about this, the randomized controlled trial will show that dramatic effect, and will convince even the skeptics that metabolic surgery is the best way to go.”

Pregnant women with a history of bariatric surgery have better cardiovascular adaptation to pregnancy compared with women who have similar early-pregnancy body mass index (BMI) but no history of weight loss surgery, new data suggest.

“Pregnant women who have had bariatric surgery demonstrate better cardiovascular adaptation through lower blood pressure, heart rate, and cardiac output, more favorable diastolic indices, and better systolic function,” reported Deesha Patel, MBBS MRCOG, specialist registrar, Chelsea and Westminster Hospital, London.

“Because the groups were matched for early pregnancy BMI, it’s unlikely that the results are due to weight loss alone but indicate that the metabolic alterations as a result of the surgery, via the enterocardiac axis, play an important role,” Dr. Patel continued.

The findings were presented at the Royal College of Obstetricians and Gynecologists 2021 Virtual World Congress.

Although obesity is known for its inflammatory and toxic effects on the cardiovascular system, it is not clear to what extent the various treatment options for obesity modify these risks in the long term, said Hutan Ashrafian, MD, clinical lecturer in surgery, Imperial College London.

“It is even less clear how anti-obesity interventions affect the cardiovascular system in pregnancy,” Dr. Ashrafian told this news organization.

“This very novel study in pregnant mothers having undergone the most successful and consistent intervention for severe obesity – bariatric or metabolic surgery – gives new clues as to the extent that bariatric procedures can alter cardiovascular risk in pregnant mothers,” continued Dr. Ashrafian, who was not involved in the study.

The results show how bariatric surgery has favorable effects on cardiac adaptation in pregnancy and in turn “might offer protection from pregnancy-related cardiovascular pathology such as preeclampsia,” explained Dr. Ashrafian. “This adds to the known effects of cardiovascular protection of bariatric surgery through the enterocardiac axis, which may explain a wider range of effects that can be translated within pregnancy and possibly following pregnancy in the postpartum era and beyond.”
 

A history of bariatric surgery versus no surgery

The prospective, longitudinal study compared 41 women who had a history of bariatric surgery with 41 women who had not undergone surgery. Patients’ characteristics were closely matched for age, BMI (34.5 kg/m2 and 34.3 kg/m2 in the surgery and bariatric surgery groups, respectively) and race. Hypertensive disorders in the post-surgery group were significantly less common compared with the no-surgery group (0% vs. 9.8%).

During the study, participants underwent cardiovascular assessment at 12-14 weeks, 20-24 weeks, and 30-32 weeks of gestation. The assessment included measurement of blood pressure and heart rate, transthoracic echocardiography, and 2D speckle tracking, performed offline to assess global longitudinal and circumferential strain.

Blood pressure readings across the three trimesters were consistently lower in the women who had undergone bariatric surgery compared with those in the no-surgery group, and all differences were statistically significant. Likewise, heart rate and cardiac output across the three trimesters were lower in the post-surgery cohort. However, there was no difference in stroke volume between the two groups.

As for diastolic function, there were more favorable indices in the post-surgery group with a higher E/A ratio, a marker of left ventricle filling (P < .001), and lower left atrial volume (P < .05), Dr. Patel reported.

With respect to systolic function, there was no difference in ejection fraction, but there was lower global longitudinal strain (P < .01) and global circumferential strain in the post-bariatric group (P = .02), suggesting better systolic function.

“Strain is a measure of differences in motion and velocity between regions of the myocardium through the cardiac cycle and can detect subclinical changes when ejection fraction is normal,” she added.

“This is a fascinating piece of work. The author should be congratulated on gathering so many [pregnant] women who had had bariatric surgery. The work gives a unique glimpse into metabolic syndrome,” said Philip Toozs-Hobson, MD, who moderated the session.

“We are increasingly recognizing the impact [of bariatric surgery] on metabolic syndrome, and the fact that this study demonstrates that there is more to it than just weight is important,” continued Dr. Toosz-Hobson, who is a consultant gynecologist at Birmingham Women’s Hospital NHS Foundation Trust, United Kingdom.
 

Cardiovascular benefits of bariatric surgery

Bariatric surgery has been associated with loss of excess body weight of up to 55% and with approximately 40% reduction in all-cause mortality in the general population. The procedure also reduces the risk for heart disease, diabetes, and cancer.

The cardiovascular benefits of bariatric surgery include reduced hypertension, remodeling of the heart with a reduction in left ventricular mass, and an improvement in diastolic and systolic function.

“Traditionally, the cardiac changes were thought to be due to weight loss and blood pressure reduction, but it is now conceivable that the metabolic components contribute to the reverse modeling via changes to the enterocardiac axis involving changes to gut hormones,” said Dr. Patel. These hormones include secretin, glucagon, and vasoactive intestinal peptide, which are known to have inotropic effects, as well as adiponectin and leptin, which are known to have cardiac effects, she added.

“Pregnancy following bariatric surgery is associated with a reduced risk of hypertensive disorders, as well as a reduced risk of gestational diabetes, large-for-gestational-age neonates, and a small increased risk of small-for-gestational-age neonates,” said Dr. Patel.

Dr. Patel and Dr. Toosz-Hobson have disclosed no relevant financial relationships.

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

Pregnant women with a history of bariatric surgery have better cardiovascular adaptation to pregnancy compared with women who have similar early-pregnancy body mass index (BMI) but no history of weight loss surgery, new data suggest.

“Pregnant women who have had bariatric surgery demonstrate better cardiovascular adaptation through lower blood pressure, heart rate, and cardiac output, more favorable diastolic indices, and better systolic function,” reported Deesha Patel, MBBS MRCOG, specialist registrar, Chelsea and Westminster Hospital, London.

“Because the groups were matched for early pregnancy BMI, it’s unlikely that the results are due to weight loss alone but indicate that the metabolic alterations as a result of the surgery, via the enterocardiac axis, play an important role,” Dr. Patel continued.

The findings were presented at the Royal College of Obstetricians and Gynecologists 2021 Virtual World Congress.

Although obesity is known for its inflammatory and toxic effects on the cardiovascular system, it is not clear to what extent the various treatment options for obesity modify these risks in the long term, said Hutan Ashrafian, MD, clinical lecturer in surgery, Imperial College London.

“It is even less clear how anti-obesity interventions affect the cardiovascular system in pregnancy,” Dr. Ashrafian told this news organization.

“This very novel study in pregnant mothers having undergone the most successful and consistent intervention for severe obesity – bariatric or metabolic surgery – gives new clues as to the extent that bariatric procedures can alter cardiovascular risk in pregnant mothers,” continued Dr. Ashrafian, who was not involved in the study.

The results show how bariatric surgery has favorable effects on cardiac adaptation in pregnancy and in turn “might offer protection from pregnancy-related cardiovascular pathology such as preeclampsia,” explained Dr. Ashrafian. “This adds to the known effects of cardiovascular protection of bariatric surgery through the enterocardiac axis, which may explain a wider range of effects that can be translated within pregnancy and possibly following pregnancy in the postpartum era and beyond.”
 

A history of bariatric surgery versus no surgery

The prospective, longitudinal study compared 41 women who had a history of bariatric surgery with 41 women who had not undergone surgery. Patients’ characteristics were closely matched for age, BMI (34.5 kg/m2 and 34.3 kg/m2 in the surgery and bariatric surgery groups, respectively) and race. Hypertensive disorders in the post-surgery group were significantly less common compared with the no-surgery group (0% vs. 9.8%).

During the study, participants underwent cardiovascular assessment at 12-14 weeks, 20-24 weeks, and 30-32 weeks of gestation. The assessment included measurement of blood pressure and heart rate, transthoracic echocardiography, and 2D speckle tracking, performed offline to assess global longitudinal and circumferential strain.

Blood pressure readings across the three trimesters were consistently lower in the women who had undergone bariatric surgery compared with those in the no-surgery group, and all differences were statistically significant. Likewise, heart rate and cardiac output across the three trimesters were lower in the post-surgery cohort. However, there was no difference in stroke volume between the two groups.

As for diastolic function, there were more favorable indices in the post-surgery group with a higher E/A ratio, a marker of left ventricle filling (P < .001), and lower left atrial volume (P < .05), Dr. Patel reported.

With respect to systolic function, there was no difference in ejection fraction, but there was lower global longitudinal strain (P < .01) and global circumferential strain in the post-bariatric group (P = .02), suggesting better systolic function.

“Strain is a measure of differences in motion and velocity between regions of the myocardium through the cardiac cycle and can detect subclinical changes when ejection fraction is normal,” she added.

“This is a fascinating piece of work. The author should be congratulated on gathering so many [pregnant] women who had had bariatric surgery. The work gives a unique glimpse into metabolic syndrome,” said Philip Toozs-Hobson, MD, who moderated the session.

“We are increasingly recognizing the impact [of bariatric surgery] on metabolic syndrome, and the fact that this study demonstrates that there is more to it than just weight is important,” continued Dr. Toosz-Hobson, who is a consultant gynecologist at Birmingham Women’s Hospital NHS Foundation Trust, United Kingdom.
 

Cardiovascular benefits of bariatric surgery

Bariatric surgery has been associated with loss of excess body weight of up to 55% and with approximately 40% reduction in all-cause mortality in the general population. The procedure also reduces the risk for heart disease, diabetes, and cancer.

The cardiovascular benefits of bariatric surgery include reduced hypertension, remodeling of the heart with a reduction in left ventricular mass, and an improvement in diastolic and systolic function.

“Traditionally, the cardiac changes were thought to be due to weight loss and blood pressure reduction, but it is now conceivable that the metabolic components contribute to the reverse modeling via changes to the enterocardiac axis involving changes to gut hormones,” said Dr. Patel. These hormones include secretin, glucagon, and vasoactive intestinal peptide, which are known to have inotropic effects, as well as adiponectin and leptin, which are known to have cardiac effects, she added.

“Pregnancy following bariatric surgery is associated with a reduced risk of hypertensive disorders, as well as a reduced risk of gestational diabetes, large-for-gestational-age neonates, and a small increased risk of small-for-gestational-age neonates,” said Dr. Patel.

Dr. Patel and Dr. Toosz-Hobson have disclosed no relevant financial relationships.

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

Pregnant women with a history of bariatric surgery have better cardiovascular adaptation to pregnancy compared with women who have similar early-pregnancy body mass index (BMI) but no history of weight loss surgery, new data suggest.

“Pregnant women who have had bariatric surgery demonstrate better cardiovascular adaptation through lower blood pressure, heart rate, and cardiac output, more favorable diastolic indices, and better systolic function,” reported Deesha Patel, MBBS MRCOG, specialist registrar, Chelsea and Westminster Hospital, London.

“Because the groups were matched for early pregnancy BMI, it’s unlikely that the results are due to weight loss alone but indicate that the metabolic alterations as a result of the surgery, via the enterocardiac axis, play an important role,” Dr. Patel continued.

The findings were presented at the Royal College of Obstetricians and Gynecologists 2021 Virtual World Congress.

Although obesity is known for its inflammatory and toxic effects on the cardiovascular system, it is not clear to what extent the various treatment options for obesity modify these risks in the long term, said Hutan Ashrafian, MD, clinical lecturer in surgery, Imperial College London.

“It is even less clear how anti-obesity interventions affect the cardiovascular system in pregnancy,” Dr. Ashrafian told this news organization.

“This very novel study in pregnant mothers having undergone the most successful and consistent intervention for severe obesity – bariatric or metabolic surgery – gives new clues as to the extent that bariatric procedures can alter cardiovascular risk in pregnant mothers,” continued Dr. Ashrafian, who was not involved in the study.

The results show how bariatric surgery has favorable effects on cardiac adaptation in pregnancy and in turn “might offer protection from pregnancy-related cardiovascular pathology such as preeclampsia,” explained Dr. Ashrafian. “This adds to the known effects of cardiovascular protection of bariatric surgery through the enterocardiac axis, which may explain a wider range of effects that can be translated within pregnancy and possibly following pregnancy in the postpartum era and beyond.”
 

A history of bariatric surgery versus no surgery

The prospective, longitudinal study compared 41 women who had a history of bariatric surgery with 41 women who had not undergone surgery. Patients’ characteristics were closely matched for age, BMI (34.5 kg/m2 and 34.3 kg/m2 in the surgery and bariatric surgery groups, respectively) and race. Hypertensive disorders in the post-surgery group were significantly less common compared with the no-surgery group (0% vs. 9.8%).

During the study, participants underwent cardiovascular assessment at 12-14 weeks, 20-24 weeks, and 30-32 weeks of gestation. The assessment included measurement of blood pressure and heart rate, transthoracic echocardiography, and 2D speckle tracking, performed offline to assess global longitudinal and circumferential strain.

Blood pressure readings across the three trimesters were consistently lower in the women who had undergone bariatric surgery compared with those in the no-surgery group, and all differences were statistically significant. Likewise, heart rate and cardiac output across the three trimesters were lower in the post-surgery cohort. However, there was no difference in stroke volume between the two groups.

As for diastolic function, there were more favorable indices in the post-surgery group with a higher E/A ratio, a marker of left ventricle filling (P < .001), and lower left atrial volume (P < .05), Dr. Patel reported.

With respect to systolic function, there was no difference in ejection fraction, but there was lower global longitudinal strain (P < .01) and global circumferential strain in the post-bariatric group (P = .02), suggesting better systolic function.

“Strain is a measure of differences in motion and velocity between regions of the myocardium through the cardiac cycle and can detect subclinical changes when ejection fraction is normal,” she added.

“This is a fascinating piece of work. The author should be congratulated on gathering so many [pregnant] women who had had bariatric surgery. The work gives a unique glimpse into metabolic syndrome,” said Philip Toozs-Hobson, MD, who moderated the session.

“We are increasingly recognizing the impact [of bariatric surgery] on metabolic syndrome, and the fact that this study demonstrates that there is more to it than just weight is important,” continued Dr. Toosz-Hobson, who is a consultant gynecologist at Birmingham Women’s Hospital NHS Foundation Trust, United Kingdom.
 

Cardiovascular benefits of bariatric surgery

Bariatric surgery has been associated with loss of excess body weight of up to 55% and with approximately 40% reduction in all-cause mortality in the general population. The procedure also reduces the risk for heart disease, diabetes, and cancer.

The cardiovascular benefits of bariatric surgery include reduced hypertension, remodeling of the heart with a reduction in left ventricular mass, and an improvement in diastolic and systolic function.

“Traditionally, the cardiac changes were thought to be due to weight loss and blood pressure reduction, but it is now conceivable that the metabolic components contribute to the reverse modeling via changes to the enterocardiac axis involving changes to gut hormones,” said Dr. Patel. These hormones include secretin, glucagon, and vasoactive intestinal peptide, which are known to have inotropic effects, as well as adiponectin and leptin, which are known to have cardiac effects, she added.

“Pregnancy following bariatric surgery is associated with a reduced risk of hypertensive disorders, as well as a reduced risk of gestational diabetes, large-for-gestational-age neonates, and a small increased risk of small-for-gestational-age neonates,” said Dr. Patel.

Dr. Patel and Dr. Toosz-Hobson have disclosed no relevant financial relationships.

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

Patients with obesity who underwent bariatric surgery had 46% lower odds of stroke 1 year later, similar odds of stroke 3 years later, and 22% lower odds of stroke 5 years later, compared with matched control patients, in new research.

purestock/Thinkstock

Michael D. Williams, MD, presented the study findings (abstract A002) at the annual meeting of the American Society for Metabolic & Bariatric Surgery.

The findings are “very good news,” even though the protection against stroke declined further out from the surgery, John D. Scott, MD, scientific program chair of the ASMBS meeting, told this news organization.

The investigators matched more than 56,000 patients with obesity who had bariatric surgery with an equal number of similar patients who did not have this surgery, from a large national insurance database, in what they believe is the largest study of this to date.

“Any intervention that decreases your risk of [cardiovascular] events is good news,” said Dr. Scott, a clinical professor of surgery at the University of South Carolina, Greenville, and metabolic and bariatric surgery director at Prisma Health in Greenville, S.C. “And having a 22%-45% chance of reduction in stroke risk is a very worthwhile intervention.”

Asked how this would change the way clinicians inform patients of what to expect from bariatric surgery, he said: “I would advise patients that studies like this show that surgery would not increase your risk of having a stroke.

“This is consistent with many studies that show that the risks of all macrovascular events decrease after the comorbidity reductions seen after surgery.”

According to Dr. Scott, “the next steps might include a prospective randomized trial of medical treatment versus surgery alone for [cardiovascular]/stroke outcomes, but this is unlikely.”

Similarly, Dr. Williams told this news organization that “I would tell [patients] that surgery is an effective and durable method for weight loss. It also can improve comorbid conditions, particularly diabetes and hypertension.”

Even with this study, “I’m not sure it’s appropriate to say that bariatric surgery will reduce the risk of stroke,” he cautioned.

“However, as we continue to investigate the effects of bariatric surgery, this study contributes to the greater body of knowledge that suggests that reduction in ischemic stroke risk is yet another benefit of bariatric surgery.”

The assigned discussant, Corrigan L. McBride, MD, MBA wanted to know if the lower odds ratio at 1 year might be because preoperative patient selection might eliminate patients at high risk of poor cardiovascular outcomes.

Dr. Williams, a resident at Rush Medical College, Chicago, replied that it is difficult to eliminate potential selection bias, despite best efforts, but this study shows that he can tell patients: “Having surgery is not going to increases your risk of stroke.”

“This is an important study,” Dr. McBride, professor and chief of minimally invasive surgery and bariatric surgery, University of Nebraska Medical Center, Omaha, told this news organization.

“It is the first large study to show a decreased [or no increased] risk of stroke 1, 3, and 5 years after bariatric surgery compared to matched patients, and it had enough data to look at stroke as a standalone endpoint,” Dr. McBride said. “It is important too, for patients and their physicians to understand that there is a lower chance of them having a stroke if they have surgery than if they do not.”
 

‘Important,’ ‘good news’ for stroke risk after bariatric surgery

The impact of bariatric surgery on remission of type 2 diabetes is well known, Dr. Williams noted, and other studies have reported how bariatric surgery affects the risk of major adverse cardiovascular events – a composite of stroke, myocardial infarction, coronary artery disease, and all-cause death – including a study presented in the same meeting session.

However, a very large sample size is needed to be able to demonstrate the effect of bariatric surgery on stroke, since stroke is a rare event.

The researchers analyzed data from the Mariner (PearlDiver.) all-payer insurance national claims database of patients in the United States.

They matched 56,514 patients with a body mass index over 35 kg/m² and comorbidities or a BMI of more than 40 who underwent sleeve gastrectomy or Roux-en-Y gastric bypass during 2010-2019 with 56,514 control patients who did not undergo bariatric surgery.

A year after bariatric surgery, patients in that group had a lower stroke rate than patients in the control group (0.6% vs. 1.2%), and they had close to 50% lower odds of having a stroke (odds ratio, 0.54; 95% CI, 0.47-0.61).

Three years after bariatric surgery, there were 44,948 patients in each group; the rate of stroke was 2.1% in the surgery group and 2.2% in the control group, and there was no significant difference in the odds of having a stroke (OR, 0.96; 95% CI, 0.91-1.00).

Five years after bariatric surgery, there were 27,619 patients in each group; the stroke rate was lower in the bariatric surgery group than in the control group (2.8% vs 3.6%), but reduced odds of stroke was not as great as after 1 year (OR, 0.78; 95% CI, 0.65-0.90).

Dr. Williams has no relevant financial disclosures. Dr. McBride and Dr. Scott disclosed that they are speakers/trainers/faculty advisers for Gore. Dr. Scott is also a consultant for C-SATS (part of Johnson & Johnson).

Patients with obesity who underwent bariatric surgery had 46% lower odds of stroke 1 year later, similar odds of stroke 3 years later, and 22% lower odds of stroke 5 years later, compared with matched control patients, in new research.

purestock/Thinkstock

Michael D. Williams, MD, presented the study findings (abstract A002) at the annual meeting of the American Society for Metabolic & Bariatric Surgery.

The findings are “very good news,” even though the protection against stroke declined further out from the surgery, John D. Scott, MD, scientific program chair of the ASMBS meeting, told this news organization.

The investigators matched more than 56,000 patients with obesity who had bariatric surgery with an equal number of similar patients who did not have this surgery, from a large national insurance database, in what they believe is the largest study of this to date.

“Any intervention that decreases your risk of [cardiovascular] events is good news,” said Dr. Scott, a clinical professor of surgery at the University of South Carolina, Greenville, and metabolic and bariatric surgery director at Prisma Health in Greenville, S.C. “And having a 22%-45% chance of reduction in stroke risk is a very worthwhile intervention.”

Asked how this would change the way clinicians inform patients of what to expect from bariatric surgery, he said: “I would advise patients that studies like this show that surgery would not increase your risk of having a stroke.

“This is consistent with many studies that show that the risks of all macrovascular events decrease after the comorbidity reductions seen after surgery.”

According to Dr. Scott, “the next steps might include a prospective randomized trial of medical treatment versus surgery alone for [cardiovascular]/stroke outcomes, but this is unlikely.”

Similarly, Dr. Williams told this news organization that “I would tell [patients] that surgery is an effective and durable method for weight loss. It also can improve comorbid conditions, particularly diabetes and hypertension.”

Even with this study, “I’m not sure it’s appropriate to say that bariatric surgery will reduce the risk of stroke,” he cautioned.

“However, as we continue to investigate the effects of bariatric surgery, this study contributes to the greater body of knowledge that suggests that reduction in ischemic stroke risk is yet another benefit of bariatric surgery.”

The assigned discussant, Corrigan L. McBride, MD, MBA wanted to know if the lower odds ratio at 1 year might be because preoperative patient selection might eliminate patients at high risk of poor cardiovascular outcomes.

Dr. Williams, a resident at Rush Medical College, Chicago, replied that it is difficult to eliminate potential selection bias, despite best efforts, but this study shows that he can tell patients: “Having surgery is not going to increases your risk of stroke.”

“This is an important study,” Dr. McBride, professor and chief of minimally invasive surgery and bariatric surgery, University of Nebraska Medical Center, Omaha, told this news organization.

“It is the first large study to show a decreased [or no increased] risk of stroke 1, 3, and 5 years after bariatric surgery compared to matched patients, and it had enough data to look at stroke as a standalone endpoint,” Dr. McBride said. “It is important too, for patients and their physicians to understand that there is a lower chance of them having a stroke if they have surgery than if they do not.”
 

‘Important,’ ‘good news’ for stroke risk after bariatric surgery

The impact of bariatric surgery on remission of type 2 diabetes is well known, Dr. Williams noted, and other studies have reported how bariatric surgery affects the risk of major adverse cardiovascular events – a composite of stroke, myocardial infarction, coronary artery disease, and all-cause death – including a study presented in the same meeting session.

However, a very large sample size is needed to be able to demonstrate the effect of bariatric surgery on stroke, since stroke is a rare event.

The researchers analyzed data from the Mariner (PearlDiver.) all-payer insurance national claims database of patients in the United States.

They matched 56,514 patients with a body mass index over 35 kg/m² and comorbidities or a BMI of more than 40 who underwent sleeve gastrectomy or Roux-en-Y gastric bypass during 2010-2019 with 56,514 control patients who did not undergo bariatric surgery.

A year after bariatric surgery, patients in that group had a lower stroke rate than patients in the control group (0.6% vs. 1.2%), and they had close to 50% lower odds of having a stroke (odds ratio, 0.54; 95% CI, 0.47-0.61).

Three years after bariatric surgery, there were 44,948 patients in each group; the rate of stroke was 2.1% in the surgery group and 2.2% in the control group, and there was no significant difference in the odds of having a stroke (OR, 0.96; 95% CI, 0.91-1.00).

Five years after bariatric surgery, there were 27,619 patients in each group; the stroke rate was lower in the bariatric surgery group than in the control group (2.8% vs 3.6%), but reduced odds of stroke was not as great as after 1 year (OR, 0.78; 95% CI, 0.65-0.90).

Dr. Williams has no relevant financial disclosures. Dr. McBride and Dr. Scott disclosed that they are speakers/trainers/faculty advisers for Gore. Dr. Scott is also a consultant for C-SATS (part of Johnson & Johnson).

Patients with obesity who underwent bariatric surgery had 46% lower odds of stroke 1 year later, similar odds of stroke 3 years later, and 22% lower odds of stroke 5 years later, compared with matched control patients, in new research.

purestock/Thinkstock

Michael D. Williams, MD, presented the study findings (abstract A002) at the annual meeting of the American Society for Metabolic & Bariatric Surgery.

The findings are “very good news,” even though the protection against stroke declined further out from the surgery, John D. Scott, MD, scientific program chair of the ASMBS meeting, told this news organization.

The investigators matched more than 56,000 patients with obesity who had bariatric surgery with an equal number of similar patients who did not have this surgery, from a large national insurance database, in what they believe is the largest study of this to date.

“Any intervention that decreases your risk of [cardiovascular] events is good news,” said Dr. Scott, a clinical professor of surgery at the University of South Carolina, Greenville, and metabolic and bariatric surgery director at Prisma Health in Greenville, S.C. “And having a 22%-45% chance of reduction in stroke risk is a very worthwhile intervention.”

Asked how this would change the way clinicians inform patients of what to expect from bariatric surgery, he said: “I would advise patients that studies like this show that surgery would not increase your risk of having a stroke.

“This is consistent with many studies that show that the risks of all macrovascular events decrease after the comorbidity reductions seen after surgery.”

According to Dr. Scott, “the next steps might include a prospective randomized trial of medical treatment versus surgery alone for [cardiovascular]/stroke outcomes, but this is unlikely.”

Similarly, Dr. Williams told this news organization that “I would tell [patients] that surgery is an effective and durable method for weight loss. It also can improve comorbid conditions, particularly diabetes and hypertension.”

Even with this study, “I’m not sure it’s appropriate to say that bariatric surgery will reduce the risk of stroke,” he cautioned.

“However, as we continue to investigate the effects of bariatric surgery, this study contributes to the greater body of knowledge that suggests that reduction in ischemic stroke risk is yet another benefit of bariatric surgery.”

The assigned discussant, Corrigan L. McBride, MD, MBA wanted to know if the lower odds ratio at 1 year might be because preoperative patient selection might eliminate patients at high risk of poor cardiovascular outcomes.

Dr. Williams, a resident at Rush Medical College, Chicago, replied that it is difficult to eliminate potential selection bias, despite best efforts, but this study shows that he can tell patients: “Having surgery is not going to increases your risk of stroke.”

“This is an important study,” Dr. McBride, professor and chief of minimally invasive surgery and bariatric surgery, University of Nebraska Medical Center, Omaha, told this news organization.

“It is the first large study to show a decreased [or no increased] risk of stroke 1, 3, and 5 years after bariatric surgery compared to matched patients, and it had enough data to look at stroke as a standalone endpoint,” Dr. McBride said. “It is important too, for patients and their physicians to understand that there is a lower chance of them having a stroke if they have surgery than if they do not.”
 

‘Important,’ ‘good news’ for stroke risk after bariatric surgery

The impact of bariatric surgery on remission of type 2 diabetes is well known, Dr. Williams noted, and other studies have reported how bariatric surgery affects the risk of major adverse cardiovascular events – a composite of stroke, myocardial infarction, coronary artery disease, and all-cause death – including a study presented in the same meeting session.

However, a very large sample size is needed to be able to demonstrate the effect of bariatric surgery on stroke, since stroke is a rare event.

The researchers analyzed data from the Mariner (PearlDiver.) all-payer insurance national claims database of patients in the United States.

They matched 56,514 patients with a body mass index over 35 kg/m² and comorbidities or a BMI of more than 40 who underwent sleeve gastrectomy or Roux-en-Y gastric bypass during 2010-2019 with 56,514 control patients who did not undergo bariatric surgery.

A year after bariatric surgery, patients in that group had a lower stroke rate than patients in the control group (0.6% vs. 1.2%), and they had close to 50% lower odds of having a stroke (odds ratio, 0.54; 95% CI, 0.47-0.61).

Three years after bariatric surgery, there were 44,948 patients in each group; the rate of stroke was 2.1% in the surgery group and 2.2% in the control group, and there was no significant difference in the odds of having a stroke (OR, 0.96; 95% CI, 0.91-1.00).

Five years after bariatric surgery, there were 27,619 patients in each group; the stroke rate was lower in the bariatric surgery group than in the control group (2.8% vs 3.6%), but reduced odds of stroke was not as great as after 1 year (OR, 0.78; 95% CI, 0.65-0.90).

Dr. Williams has no relevant financial disclosures. Dr. McBride and Dr. Scott disclosed that they are speakers/trainers/faculty advisers for Gore. Dr. Scott is also a consultant for C-SATS (part of Johnson & Johnson).

A delaying tactic used by some U.S. health insurers to limit coverage of bariatric surgery does not jibe with the clinical experience at one U.S. center with 461 patients who underwent primary or revisional bariatric surgery.

PhotoDisk

The tactic applies to patients with a baseline body mass index (BMI) of 35-39 kg/m² who usually also need at least one comorbidity to qualify for insurance coverage for bariatric surgery, and specifically to the subgroup for whom hypertension is the qualifying comorbidity.

Some insurers limit surgery coverage to patients with hypertension who fail to reach their goal blood pressure on agents from three different drug classes, a policy that is “extremely frustrating and dangerous,” said Yannis Raftopoulos, MD, PhD, in his presentation at the annual meeting of the American Society for Metabolic and Bariatric Surgery.

Using number of antihypertensive drugs ‘is not correct’

“Using the number of antihypertensive medications to justify surgery is not correct because blood pressure control is not [always] better when patients take two or three medications, compared with when they are taking one. This harms patients because the more severe their hypertension, the worse their control,” said Dr. Raftopoulos, director of the weight management program at Holyoke (Mass.) Medical Center.

He presented findings from a retrospective study of 461 patients who underwent either sleeve gastrectomy or laparoscopic Roux-en-Y gastric bypass at his center, including 213 (46%) diagnosed with hypertension at the time of their surgery. Within this group were 68 patients with a BMI of 35-39, which meant that they could get insurance coverage for bariatric surgery only if they also had a relevant comorbidity such as hypertension, diabetes, or severe sleep apnea.

Among these patients, 36 (17% of those with hypertension) had only hypertension as their relevant comorbidity and would not have qualified for bariatric surgery under the strictest criteria applied by some insurers that require patients to remain hypertensive despite treatment with at least three different antihypertensive medications. (These 36 patients underwent bariatric surgery because their insurance coverage did not have this restriction.)

The analyses Dr. Raftopoulos presented also documented the rate of hypertension resolution among patients in the series who had hypertension at baseline and 1-year follow-up results. Among 65 patients on one antihypertensive drug at baseline, 43 (66%) had complete resolution of their hypertension after 1 year, defined as blood pressure of less than 130/90 mm Hg while completely off antihypertensive treatment. In contrast, among 55 patients on two antihypertensive medications at baseline, 28 (51%) had complete resolution after 1 year, and among 24 patients on three or more antihypertensive medications at baseline, 3 (13%) had complete resolution 1 year after bariatric surgery, he reported.

“Patients who were treated with one oral antihypertensive medication preoperatively had a higher likelihood of postoperative hypertension resolution,” concluded Dr. Raftopoulos.

Restricting access to bariatric surgery to patients with a BMI of less than 40 based on the preoperative intensity of their antihypertensive treatment “is not supported by our data, and can be potentially harmful,” he declared.

“This study was the result of discussions about this problem with multiple insurers in my area,” he added. “This affects a good number of patients.”

Waiting for hypertension to become less treatable

The results Dr. Raftopoulos presented “are not surprising, because they confirm the hypothesis that earlier intervention in the course of a disease like hypertension is more likely to be successful,” commented Bruce D. Schirmer, MD, a professor of surgery at the University of Virginia, Charlottesville, and designated discussant for the report.

The policy followed by some health insurers to delay coverage for bariatric surgery until patients fail three medications “forces patients with more treatable hypertension to wait until their disease worsens and becomes less treatable before they can receive appropriate treatment,” he said.

Dr. Schirmer attributed the motivation for this approach to a “despicable” and “reprehensible” reason: “Actuarial calculations that show paying for curative therapy is not cost effective in the short term. The duration of a patient’s policy may not be long enough to yield a positive financial outcome, so it becomes more appropriate to deny optimal care and have patients become sicker from their disease.”

“I applaud the authors for accumulating the data that point out this unfortunate rule of some insurance companies,” Dr. Schirmer added.

The practice is comparable with an insurer requiring that a patient’s cancer must be metastatic before allowing coverage for treatment, commented Ann M. Rogers, MD, professor and director of the Penn State University surgical weight loss program in Hershey, Penn., and a moderator of the session.

Dr. Raftopoulos, Dr. Schirmer, and Dr. Rogers had no disclosures.

[email protected]

A delaying tactic used by some U.S. health insurers to limit coverage of bariatric surgery does not jibe with the clinical experience at one U.S. center with 461 patients who underwent primary or revisional bariatric surgery.

PhotoDisk

The tactic applies to patients with a baseline body mass index (BMI) of 35-39 kg/m² who usually also need at least one comorbidity to qualify for insurance coverage for bariatric surgery, and specifically to the subgroup for whom hypertension is the qualifying comorbidity.

Some insurers limit surgery coverage to patients with hypertension who fail to reach their goal blood pressure on agents from three different drug classes, a policy that is “extremely frustrating and dangerous,” said Yannis Raftopoulos, MD, PhD, in his presentation at the annual meeting of the American Society for Metabolic and Bariatric Surgery.

Using number of antihypertensive drugs ‘is not correct’

“Using the number of antihypertensive medications to justify surgery is not correct because blood pressure control is not [always] better when patients take two or three medications, compared with when they are taking one. This harms patients because the more severe their hypertension, the worse their control,” said Dr. Raftopoulos, director of the weight management program at Holyoke (Mass.) Medical Center.

He presented findings from a retrospective study of 461 patients who underwent either sleeve gastrectomy or laparoscopic Roux-en-Y gastric bypass at his center, including 213 (46%) diagnosed with hypertension at the time of their surgery. Within this group were 68 patients with a BMI of 35-39, which meant that they could get insurance coverage for bariatric surgery only if they also had a relevant comorbidity such as hypertension, diabetes, or severe sleep apnea.

Among these patients, 36 (17% of those with hypertension) had only hypertension as their relevant comorbidity and would not have qualified for bariatric surgery under the strictest criteria applied by some insurers that require patients to remain hypertensive despite treatment with at least three different antihypertensive medications. (These 36 patients underwent bariatric surgery because their insurance coverage did not have this restriction.)

The analyses Dr. Raftopoulos presented also documented the rate of hypertension resolution among patients in the series who had hypertension at baseline and 1-year follow-up results. Among 65 patients on one antihypertensive drug at baseline, 43 (66%) had complete resolution of their hypertension after 1 year, defined as blood pressure of less than 130/90 mm Hg while completely off antihypertensive treatment. In contrast, among 55 patients on two antihypertensive medications at baseline, 28 (51%) had complete resolution after 1 year, and among 24 patients on three or more antihypertensive medications at baseline, 3 (13%) had complete resolution 1 year after bariatric surgery, he reported.

“Patients who were treated with one oral antihypertensive medication preoperatively had a higher likelihood of postoperative hypertension resolution,” concluded Dr. Raftopoulos.

Restricting access to bariatric surgery to patients with a BMI of less than 40 based on the preoperative intensity of their antihypertensive treatment “is not supported by our data, and can be potentially harmful,” he declared.

“This study was the result of discussions about this problem with multiple insurers in my area,” he added. “This affects a good number of patients.”

Waiting for hypertension to become less treatable

The results Dr. Raftopoulos presented “are not surprising, because they confirm the hypothesis that earlier intervention in the course of a disease like hypertension is more likely to be successful,” commented Bruce D. Schirmer, MD, a professor of surgery at the University of Virginia, Charlottesville, and designated discussant for the report.

The policy followed by some health insurers to delay coverage for bariatric surgery until patients fail three medications “forces patients with more treatable hypertension to wait until their disease worsens and becomes less treatable before they can receive appropriate treatment,” he said.

Dr. Schirmer attributed the motivation for this approach to a “despicable” and “reprehensible” reason: “Actuarial calculations that show paying for curative therapy is not cost effective in the short term. The duration of a patient’s policy may not be long enough to yield a positive financial outcome, so it becomes more appropriate to deny optimal care and have patients become sicker from their disease.”

“I applaud the authors for accumulating the data that point out this unfortunate rule of some insurance companies,” Dr. Schirmer added.

The practice is comparable with an insurer requiring that a patient’s cancer must be metastatic before allowing coverage for treatment, commented Ann M. Rogers, MD, professor and director of the Penn State University surgical weight loss program in Hershey, Penn., and a moderator of the session.

Dr. Raftopoulos, Dr. Schirmer, and Dr. Rogers had no disclosures.

[email protected]

A delaying tactic used by some U.S. health insurers to limit coverage of bariatric surgery does not jibe with the clinical experience at one U.S. center with 461 patients who underwent primary or revisional bariatric surgery.

PhotoDisk

The tactic applies to patients with a baseline body mass index (BMI) of 35-39 kg/m² who usually also need at least one comorbidity to qualify for insurance coverage for bariatric surgery, and specifically to the subgroup for whom hypertension is the qualifying comorbidity.

Some insurers limit surgery coverage to patients with hypertension who fail to reach their goal blood pressure on agents from three different drug classes, a policy that is “extremely frustrating and dangerous,” said Yannis Raftopoulos, MD, PhD, in his presentation at the annual meeting of the American Society for Metabolic and Bariatric Surgery.

Using number of antihypertensive drugs ‘is not correct’

“Using the number of antihypertensive medications to justify surgery is not correct because blood pressure control is not [always] better when patients take two or three medications, compared with when they are taking one. This harms patients because the more severe their hypertension, the worse their control,” said Dr. Raftopoulos, director of the weight management program at Holyoke (Mass.) Medical Center.

He presented findings from a retrospective study of 461 patients who underwent either sleeve gastrectomy or laparoscopic Roux-en-Y gastric bypass at his center, including 213 (46%) diagnosed with hypertension at the time of their surgery. Within this group were 68 patients with a BMI of 35-39, which meant that they could get insurance coverage for bariatric surgery only if they also had a relevant comorbidity such as hypertension, diabetes, or severe sleep apnea.

Among these patients, 36 (17% of those with hypertension) had only hypertension as their relevant comorbidity and would not have qualified for bariatric surgery under the strictest criteria applied by some insurers that require patients to remain hypertensive despite treatment with at least three different antihypertensive medications. (These 36 patients underwent bariatric surgery because their insurance coverage did not have this restriction.)

The analyses Dr. Raftopoulos presented also documented the rate of hypertension resolution among patients in the series who had hypertension at baseline and 1-year follow-up results. Among 65 patients on one antihypertensive drug at baseline, 43 (66%) had complete resolution of their hypertension after 1 year, defined as blood pressure of less than 130/90 mm Hg while completely off antihypertensive treatment. In contrast, among 55 patients on two antihypertensive medications at baseline, 28 (51%) had complete resolution after 1 year, and among 24 patients on three or more antihypertensive medications at baseline, 3 (13%) had complete resolution 1 year after bariatric surgery, he reported.

“Patients who were treated with one oral antihypertensive medication preoperatively had a higher likelihood of postoperative hypertension resolution,” concluded Dr. Raftopoulos.

Restricting access to bariatric surgery to patients with a BMI of less than 40 based on the preoperative intensity of their antihypertensive treatment “is not supported by our data, and can be potentially harmful,” he declared.

“This study was the result of discussions about this problem with multiple insurers in my area,” he added. “This affects a good number of patients.”

Waiting for hypertension to become less treatable

The results Dr. Raftopoulos presented “are not surprising, because they confirm the hypothesis that earlier intervention in the course of a disease like hypertension is more likely to be successful,” commented Bruce D. Schirmer, MD, a professor of surgery at the University of Virginia, Charlottesville, and designated discussant for the report.

The policy followed by some health insurers to delay coverage for bariatric surgery until patients fail three medications “forces patients with more treatable hypertension to wait until their disease worsens and becomes less treatable before they can receive appropriate treatment,” he said.

Dr. Schirmer attributed the motivation for this approach to a “despicable” and “reprehensible” reason: “Actuarial calculations that show paying for curative therapy is not cost effective in the short term. The duration of a patient’s policy may not be long enough to yield a positive financial outcome, so it becomes more appropriate to deny optimal care and have patients become sicker from their disease.”

“I applaud the authors for accumulating the data that point out this unfortunate rule of some insurance companies,” Dr. Schirmer added.

The practice is comparable with an insurer requiring that a patient’s cancer must be metastatic before allowing coverage for treatment, commented Ann M. Rogers, MD, professor and director of the Penn State University surgical weight loss program in Hershey, Penn., and a moderator of the session.

Dr. Raftopoulos, Dr. Schirmer, and Dr. Rogers had no disclosures.

[email protected]

Barrett’s esophagus occurred in nearly 12% of patients who underwent esophagogastroduodenoscopy after sleeve gastrectomy, but it was not associated with postoperative gastroesophageal reflux disease (GERD), based on data from 10 studies that totaled 680 adult patients.

ChrisPole/thinkstock

Sleeve gastrectomy has become more popular in recent years as an effective strategy for patients with severe obesity, wrote Bashar J. Qumseya, MD, of the University of Florida, Gainesville, and colleagues. However, GERD is a common concern for patients undergoing sleeve gastrectomy and is the major risk factor for Barrett’s esophagus. However, the prevalence of Barrett’s esophagus in the sleeve gastrectomy population has not been examined.

In a meta-analysis published in Gastrointestinal Endoscopy, the researchers reviewed 10 studies that totaled 680 patients who underwent esophagogastroduodenoscopy 6 months to 10 years after a sleeve gastrectomy procedure. The primary outcome was Barrett’s esophagus prevalence in sleeve gastrectomy patients, with the prevalence of erosive esophagitis and GERD at follow-up as secondary outcomes.

Overall, 54 patients developed Barrett’s esophagus, for a pooled prevalence of 11.6%, and all cases were nondysplastic and de novo. There was no significant association between Barrett’s esophagus and the presence of postoperative GERD, the researchers said (odds ratio, 1.74; P = .37).

However, the rate of erosive esophagitis increased by 86% in five studies with long-term follow-up and by 35% in two studies with short-term follow-up, which suggests an increased risk of 13% each year after sleeve gastrectomy, the researchers noted.

Besides the risk of Barrett’s esophagus after sleeve gastrectomy, “the risk of [erosive esophagitis] is also of significant interest and shares the same pathophysiology with [Barrett’s esophagus] and GERD,” they emphasized.

The study findings were limited by several factors including the small sample size and the focus on Barrett’s esophagus rather than erosive esophagitis or GERD as the primary outcome, the researchers noted. However, the results indicate that sleeve gastrectomy patients are at increased risk for Barrett’s esophagus, and larger studies are needed to better understand the pathophysiology. Furthermore, although there is some debate regarding the risk of GERD and erosive esophagitis after sleeve gastrectomy, the authors wrote that the data from their study showed a “consistent and substantial trend” toward more erosive esophagitis after sleeve gastrectomy.

“Gastroenterologists, primary care providers, and bariatric surgeons should be aware” of the data and should discuss the risks of sleeve gastrectomy with patients before the procedure, including the risks and benefits of postprocedure screening for Barrett’s esophagus, they concluded.
 

Consider surveillance for Barrett’s

The study is important because of the increased rates of GERD and potentially Barrett’s esophagus that have been noted after sleeve gastrectomy, Gyanprakash A. Ketwaroo, MD, of Baylor College of Medicine, Houston, said in an interview.

“Many of these studies have been small, and the findings of meta-analyses have been limited by high heterogeneity,” he noted. “With the rise in popularity of sleeve gastrectomy, it is important to accurately assess potential long-term complications.”

Dr. Ketwaroo said he was not surprised by the study findings given several reports of increased GERD after sleeve gastrectomy. “Given the accepted pathophysiology of Barrett’s esophagus, I anticipated increased risk of Barrett’s esophagus after sleeve gastrectomy as well.

“Clinicians should consider surveillance for Barrett’s esophagus after sleeve gastrectomy, and possible early proton pump inhibitor use for both GERD/erosive esophagitis and Barrett’s esophagus chemoprophylaxis. Patients with longer-segment or dysplastic Barrett’s esophagus prior to sleeve gastrectomy may have to be monitored more closely after surgery,” he said.

Dr. Ketwaroo noted that the study was limited by the small sample size, “with only approximately 50 patients with Barrett’s esophagus after surgery among 680 overall.” He emphasized that “we will need a much larger prospective study to confirm this finding. Additionally, I would want to explore if sleeve gastrectomy increases rate of progression of dysplasia in those who develop Barrett’s esophagus.”

The study received no outside funding. Lead author Dr. Qumseya had no financial conflicts to disclose. Dr. Ketwaroo serves on the GI & Hepatology News editorial advisory board.

Barrett’s esophagus occurred in nearly 12% of patients who underwent esophagogastroduodenoscopy after sleeve gastrectomy, but it was not associated with postoperative gastroesophageal reflux disease (GERD), based on data from 10 studies that totaled 680 adult patients.

ChrisPole/thinkstock

Sleeve gastrectomy has become more popular in recent years as an effective strategy for patients with severe obesity, wrote Bashar J. Qumseya, MD, of the University of Florida, Gainesville, and colleagues. However, GERD is a common concern for patients undergoing sleeve gastrectomy and is the major risk factor for Barrett’s esophagus. However, the prevalence of Barrett’s esophagus in the sleeve gastrectomy population has not been examined.

In a meta-analysis published in Gastrointestinal Endoscopy, the researchers reviewed 10 studies that totaled 680 patients who underwent esophagogastroduodenoscopy 6 months to 10 years after a sleeve gastrectomy procedure. The primary outcome was Barrett’s esophagus prevalence in sleeve gastrectomy patients, with the prevalence of erosive esophagitis and GERD at follow-up as secondary outcomes.

Overall, 54 patients developed Barrett’s esophagus, for a pooled prevalence of 11.6%, and all cases were nondysplastic and de novo. There was no significant association between Barrett’s esophagus and the presence of postoperative GERD, the researchers said (odds ratio, 1.74; P = .37).

However, the rate of erosive esophagitis increased by 86% in five studies with long-term follow-up and by 35% in two studies with short-term follow-up, which suggests an increased risk of 13% each year after sleeve gastrectomy, the researchers noted.

Besides the risk of Barrett’s esophagus after sleeve gastrectomy, “the risk of [erosive esophagitis] is also of significant interest and shares the same pathophysiology with [Barrett’s esophagus] and GERD,” they emphasized.

The study findings were limited by several factors including the small sample size and the focus on Barrett’s esophagus rather than erosive esophagitis or GERD as the primary outcome, the researchers noted. However, the results indicate that sleeve gastrectomy patients are at increased risk for Barrett’s esophagus, and larger studies are needed to better understand the pathophysiology. Furthermore, although there is some debate regarding the risk of GERD and erosive esophagitis after sleeve gastrectomy, the authors wrote that the data from their study showed a “consistent and substantial trend” toward more erosive esophagitis after sleeve gastrectomy.

“Gastroenterologists, primary care providers, and bariatric surgeons should be aware” of the data and should discuss the risks of sleeve gastrectomy with patients before the procedure, including the risks and benefits of postprocedure screening for Barrett’s esophagus, they concluded.
 

Consider surveillance for Barrett’s

The study is important because of the increased rates of GERD and potentially Barrett’s esophagus that have been noted after sleeve gastrectomy, Gyanprakash A. Ketwaroo, MD, of Baylor College of Medicine, Houston, said in an interview.

“Many of these studies have been small, and the findings of meta-analyses have been limited by high heterogeneity,” he noted. “With the rise in popularity of sleeve gastrectomy, it is important to accurately assess potential long-term complications.”

Dr. Ketwaroo said he was not surprised by the study findings given several reports of increased GERD after sleeve gastrectomy. “Given the accepted pathophysiology of Barrett’s esophagus, I anticipated increased risk of Barrett’s esophagus after sleeve gastrectomy as well.

“Clinicians should consider surveillance for Barrett’s esophagus after sleeve gastrectomy, and possible early proton pump inhibitor use for both GERD/erosive esophagitis and Barrett’s esophagus chemoprophylaxis. Patients with longer-segment or dysplastic Barrett’s esophagus prior to sleeve gastrectomy may have to be monitored more closely after surgery,” he said.

Dr. Ketwaroo noted that the study was limited by the small sample size, “with only approximately 50 patients with Barrett’s esophagus after surgery among 680 overall.” He emphasized that “we will need a much larger prospective study to confirm this finding. Additionally, I would want to explore if sleeve gastrectomy increases rate of progression of dysplasia in those who develop Barrett’s esophagus.”

The study received no outside funding. Lead author Dr. Qumseya had no financial conflicts to disclose. Dr. Ketwaroo serves on the GI & Hepatology News editorial advisory board.

Barrett’s esophagus occurred in nearly 12% of patients who underwent esophagogastroduodenoscopy after sleeve gastrectomy, but it was not associated with postoperative gastroesophageal reflux disease (GERD), based on data from 10 studies that totaled 680 adult patients.

ChrisPole/thinkstock

Sleeve gastrectomy has become more popular in recent years as an effective strategy for patients with severe obesity, wrote Bashar J. Qumseya, MD, of the University of Florida, Gainesville, and colleagues. However, GERD is a common concern for patients undergoing sleeve gastrectomy and is the major risk factor for Barrett’s esophagus. However, the prevalence of Barrett’s esophagus in the sleeve gastrectomy population has not been examined.

In a meta-analysis published in Gastrointestinal Endoscopy, the researchers reviewed 10 studies that totaled 680 patients who underwent esophagogastroduodenoscopy 6 months to 10 years after a sleeve gastrectomy procedure. The primary outcome was Barrett’s esophagus prevalence in sleeve gastrectomy patients, with the prevalence of erosive esophagitis and GERD at follow-up as secondary outcomes.

Overall, 54 patients developed Barrett’s esophagus, for a pooled prevalence of 11.6%, and all cases were nondysplastic and de novo. There was no significant association between Barrett’s esophagus and the presence of postoperative GERD, the researchers said (odds ratio, 1.74; P = .37).

However, the rate of erosive esophagitis increased by 86% in five studies with long-term follow-up and by 35% in two studies with short-term follow-up, which suggests an increased risk of 13% each year after sleeve gastrectomy, the researchers noted.

Besides the risk of Barrett’s esophagus after sleeve gastrectomy, “the risk of [erosive esophagitis] is also of significant interest and shares the same pathophysiology with [Barrett’s esophagus] and GERD,” they emphasized.

The study findings were limited by several factors including the small sample size and the focus on Barrett’s esophagus rather than erosive esophagitis or GERD as the primary outcome, the researchers noted. However, the results indicate that sleeve gastrectomy patients are at increased risk for Barrett’s esophagus, and larger studies are needed to better understand the pathophysiology. Furthermore, although there is some debate regarding the risk of GERD and erosive esophagitis after sleeve gastrectomy, the authors wrote that the data from their study showed a “consistent and substantial trend” toward more erosive esophagitis after sleeve gastrectomy.

“Gastroenterologists, primary care providers, and bariatric surgeons should be aware” of the data and should discuss the risks of sleeve gastrectomy with patients before the procedure, including the risks and benefits of postprocedure screening for Barrett’s esophagus, they concluded.
 

Consider surveillance for Barrett’s

The study is important because of the increased rates of GERD and potentially Barrett’s esophagus that have been noted after sleeve gastrectomy, Gyanprakash A. Ketwaroo, MD, of Baylor College of Medicine, Houston, said in an interview.

“Many of these studies have been small, and the findings of meta-analyses have been limited by high heterogeneity,” he noted. “With the rise in popularity of sleeve gastrectomy, it is important to accurately assess potential long-term complications.”

Dr. Ketwaroo said he was not surprised by the study findings given several reports of increased GERD after sleeve gastrectomy. “Given the accepted pathophysiology of Barrett’s esophagus, I anticipated increased risk of Barrett’s esophagus after sleeve gastrectomy as well.

“Clinicians should consider surveillance for Barrett’s esophagus after sleeve gastrectomy, and possible early proton pump inhibitor use for both GERD/erosive esophagitis and Barrett’s esophagus chemoprophylaxis. Patients with longer-segment or dysplastic Barrett’s esophagus prior to sleeve gastrectomy may have to be monitored more closely after surgery,” he said.

Dr. Ketwaroo noted that the study was limited by the small sample size, “with only approximately 50 patients with Barrett’s esophagus after surgery among 680 overall.” He emphasized that “we will need a much larger prospective study to confirm this finding. Additionally, I would want to explore if sleeve gastrectomy increases rate of progression of dysplasia in those who develop Barrett’s esophagus.”

The study received no outside funding. Lead author Dr. Qumseya had no financial conflicts to disclose. Dr. Ketwaroo serves on the GI & Hepatology News editorial advisory board.

A small, single-center randomized trial of patients with obesity and advanced type 2 diabetes, defined as diabetes for ≥ 5 years and A1c ≥ 7%, found that a quarter to a half of patients who had metabolic surgery had diabetes remission (cure) that lasted 5-9 years.

That is, of the 60 randomized patients, 50% who had biliopancreatic diversion and 25% who had Roux-en-Y gastric bypass – but none who had received current medical therapy – still had diabetes remission a decade later.

Until now, there had only been 5-year follow-up data from this and similar trials, Geltrude Mingrone, MD, PhD, and colleagues noted in the study published online Jan. 23 in The Lancet.

These results provide “the most robust scientific evidence yet that full-blown type 2 diabetes is a curable disease, not inevitably progressive, and irreversible,” senior author Francesco Rubino, MD, chair of bariatric and metabolic surgery at King’s College London, said in a statement from his institution.

“The results of this trial will make a noticeable difference in the field and convince even the most skeptical of clinicians about the role of metabolic surgery as part of optimal care for their patients with difficult to control type 2 diabetes,” predicted two editorialists.

Alexander D. Miras, PhD, section of metabolism, digestion, and reproduction, Imperial College London, and Carel le Roux, MBChB, PhD, of the Diabetes Complications Research Centre, University College Dublin, penned the accompanying commentary.

Patients who had metabolic surgery also had greater weight loss, reduced medication use, lower cardiovascular risk, better quality of life, and a lower incidence of diabetes-related complications compared with those who received medical therapy.

“Clinicians and policymakers should ensure that metabolic surgery is appropriately considered in the management of patients with obesity and type 2 diabetes,” advised Dr. Mingrone of King’s College London and the Catholic University of Rome, and colleagues.
 

“Reassuring results, will make a difference in the field”

“It is reassuring that we now have 10-year data showing greater efficacy of metabolic surgery than conventional medical therapy,” Dr. Miras and Dr. le Roux wrote in their commentary.

There were no unexpected risks associated with surgery, they noted, and the findings are consistent with those of 12 other randomized controlled trials in the past 12 years.

“New generations of diabetologists are now more open to the use of metabolic surgery for patients with suboptimal responses to medical treatments,” they wrote, rather than endlessly intensifying insulin and blaming poor response on poor compliance.

And Dr. Miras and Dr. le Roux “eagerly await” 10-year data from the 150-patient STAMPEDE trial – which is examining sleeve gastrectomy, currently the most widely performed bariatric procedure, as well as Roux-en-Y gastric bypass and medical therapy – following the 5-year results published in 2017.  
 

Diabetes for at least 5 years, mid 40s, half on insulin

Dr. Mingrone and colleagues previously reported 5-year findings from the 60 patients with obesity and advanced diabetes who were seen in a single center in Rome and randomized to three treatments (20 in each group) in 2009-2011.

Biliopancreatic diversion “remains infrequently performed but is still considered the best operation for glycemic control,” the researchers noted.

The primary endpoint was diabetes remission at 2 years (fasting plasma glucose < 100 mg/dL [5.6 mmol/L] and A1c < 6.5%) without the need for ongoing pharmacological treatment for at least 1 year.

Patients were a mean age of 44 years and had a mean body mass index of 44 kg/m^2. About half were men. They had diabetes for a mean of 5.8 years and an average A1c of 8.6%. About half were taking insulin.

Patient retention rate was high (95%) and trial outcomes were assessed by nonsurgeons.

At 10 years, patients’ mean A1c had dropped to 6.4%, 6.7%, and 7.6%, in the biliopancreatic diversion, Roux-en-Y gastric bypass, and medical therapy groups, respectively; only 2.5% of patients in the surgery groups, versus 53% in the medical therapy group, required insulin.

At study end, patients in the surgery groups had lost about 29% of their initial weight versus a weight loss of 4.2% in the medical therapy group.
 

First 2 years after surgery is key

“We also learnt that patients who do not go into remission after 2 years are very unlikely to ever do so,” Dr. Miras and Dr. le Roux observed, which “might help us to intensify modern and potent glucose-lowering therapies like SGLT2 inhibitors and GLP-1 receptor agonists earlier after metabolic surgery.”

Ten of 19 patients (53%) in the biliopancreatic diversion group and 10 of 15 patients (67%) in the Roux-en-Y gastric bypass group who had diabetes remission at 2 years had a diabetes relapse, but at 10 years, they all had adequate glycemic control (mean A1c 6.7%), despite drastically reduced use of diabetes medications.

The two patients who crossed over to surgery from the medical therapy group had postoperative diabetes remission, which was maintained at 10 years in one patient.
 

Better risk-to-benefit ratio with Roux-en-y gastric bypass

No patient in the medical therapy group had a serious adverse event, but one patient in each surgery group had deep vein thrombosis or pulmonary embolism, and one patient in the biliopancreatic diversion group had an episode of atrial fibrillation. There were no late surgical complications.

Iron deficiency and mild osteopenia occurred in both surgical groups, but were more common in the biliopancreatic diversion group. And osteoporosis, transient nyctalopia (night blindness) due to vitamin A deficiency, and kidney stones were observed only with biliopancreatic diversion.

This suggests that despite the greater antidiabetic potential of biliopancreatic diversion, Roux-en-Y gastric bypass might have a more favorable risk-to-benefit profile as a standard surgical option for the treatment of type 2 diabetes, Dr. Mingrone and colleagues concluded.

The authors and Dr. Miras have reported no relevant financial relationships. Dr. le Roux has reported receiving funding from the Science Foundation Ireland, the Health Research Board, and the Irish Research Council for type 2 diabetes research, and serves on several advisory boards outside of the scope of the current study.

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

A small, single-center randomized trial of patients with obesity and advanced type 2 diabetes, defined as diabetes for ≥ 5 years and A1c ≥ 7%, found that a quarter to a half of patients who had metabolic surgery had diabetes remission (cure) that lasted 5-9 years.

That is, of the 60 randomized patients, 50% who had biliopancreatic diversion and 25% who had Roux-en-Y gastric bypass – but none who had received current medical therapy – still had diabetes remission a decade later.

Until now, there had only been 5-year follow-up data from this and similar trials, Geltrude Mingrone, MD, PhD, and colleagues noted in the study published online Jan. 23 in The Lancet.

These results provide “the most robust scientific evidence yet that full-blown type 2 diabetes is a curable disease, not inevitably progressive, and irreversible,” senior author Francesco Rubino, MD, chair of bariatric and metabolic surgery at King’s College London, said in a statement from his institution.

“The results of this trial will make a noticeable difference in the field and convince even the most skeptical of clinicians about the role of metabolic surgery as part of optimal care for their patients with difficult to control type 2 diabetes,” predicted two editorialists.

Alexander D. Miras, PhD, section of metabolism, digestion, and reproduction, Imperial College London, and Carel le Roux, MBChB, PhD, of the Diabetes Complications Research Centre, University College Dublin, penned the accompanying commentary.

Patients who had metabolic surgery also had greater weight loss, reduced medication use, lower cardiovascular risk, better quality of life, and a lower incidence of diabetes-related complications compared with those who received medical therapy.

“Clinicians and policymakers should ensure that metabolic surgery is appropriately considered in the management of patients with obesity and type 2 diabetes,” advised Dr. Mingrone of King’s College London and the Catholic University of Rome, and colleagues.
 

“Reassuring results, will make a difference in the field”

“It is reassuring that we now have 10-year data showing greater efficacy of metabolic surgery than conventional medical therapy,” Dr. Miras and Dr. le Roux wrote in their commentary.

There were no unexpected risks associated with surgery, they noted, and the findings are consistent with those of 12 other randomized controlled trials in the past 12 years.

“New generations of diabetologists are now more open to the use of metabolic surgery for patients with suboptimal responses to medical treatments,” they wrote, rather than endlessly intensifying insulin and blaming poor response on poor compliance.

And Dr. Miras and Dr. le Roux “eagerly await” 10-year data from the 150-patient STAMPEDE trial – which is examining sleeve gastrectomy, currently the most widely performed bariatric procedure, as well as Roux-en-Y gastric bypass and medical therapy – following the 5-year results published in 2017.  
 

Diabetes for at least 5 years, mid 40s, half on insulin

Dr. Mingrone and colleagues previously reported 5-year findings from the 60 patients with obesity and advanced diabetes who were seen in a single center in Rome and randomized to three treatments (20 in each group) in 2009-2011.

Biliopancreatic diversion “remains infrequently performed but is still considered the best operation for glycemic control,” the researchers noted.

The primary endpoint was diabetes remission at 2 years (fasting plasma glucose < 100 mg/dL [5.6 mmol/L] and A1c < 6.5%) without the need for ongoing pharmacological treatment for at least 1 year.

Patients were a mean age of 44 years and had a mean body mass index of 44 kg/m^2. About half were men. They had diabetes for a mean of 5.8 years and an average A1c of 8.6%. About half were taking insulin.

Patient retention rate was high (95%) and trial outcomes were assessed by nonsurgeons.

At 10 years, patients’ mean A1c had dropped to 6.4%, 6.7%, and 7.6%, in the biliopancreatic diversion, Roux-en-Y gastric bypass, and medical therapy groups, respectively; only 2.5% of patients in the surgery groups, versus 53% in the medical therapy group, required insulin.

At study end, patients in the surgery groups had lost about 29% of their initial weight versus a weight loss of 4.2% in the medical therapy group.
 

First 2 years after surgery is key

“We also learnt that patients who do not go into remission after 2 years are very unlikely to ever do so,” Dr. Miras and Dr. le Roux observed, which “might help us to intensify modern and potent glucose-lowering therapies like SGLT2 inhibitors and GLP-1 receptor agonists earlier after metabolic surgery.”

Ten of 19 patients (53%) in the biliopancreatic diversion group and 10 of 15 patients (67%) in the Roux-en-Y gastric bypass group who had diabetes remission at 2 years had a diabetes relapse, but at 10 years, they all had adequate glycemic control (mean A1c 6.7%), despite drastically reduced use of diabetes medications.

The two patients who crossed over to surgery from the medical therapy group had postoperative diabetes remission, which was maintained at 10 years in one patient.
 

Better risk-to-benefit ratio with Roux-en-y gastric bypass

No patient in the medical therapy group had a serious adverse event, but one patient in each surgery group had deep vein thrombosis or pulmonary embolism, and one patient in the biliopancreatic diversion group had an episode of atrial fibrillation. There were no late surgical complications.

Iron deficiency and mild osteopenia occurred in both surgical groups, but were more common in the biliopancreatic diversion group. And osteoporosis, transient nyctalopia (night blindness) due to vitamin A deficiency, and kidney stones were observed only with biliopancreatic diversion.

This suggests that despite the greater antidiabetic potential of biliopancreatic diversion, Roux-en-Y gastric bypass might have a more favorable risk-to-benefit profile as a standard surgical option for the treatment of type 2 diabetes, Dr. Mingrone and colleagues concluded.

The authors and Dr. Miras have reported no relevant financial relationships. Dr. le Roux has reported receiving funding from the Science Foundation Ireland, the Health Research Board, and the Irish Research Council for type 2 diabetes research, and serves on several advisory boards outside of the scope of the current study.

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

A small, single-center randomized trial of patients with obesity and advanced type 2 diabetes, defined as diabetes for ≥ 5 years and A1c ≥ 7%, found that a quarter to a half of patients who had metabolic surgery had diabetes remission (cure) that lasted 5-9 years.

That is, of the 60 randomized patients, 50% who had biliopancreatic diversion and 25% who had Roux-en-Y gastric bypass – but none who had received current medical therapy – still had diabetes remission a decade later.

Until now, there had only been 5-year follow-up data from this and similar trials, Geltrude Mingrone, MD, PhD, and colleagues noted in the study published online Jan. 23 in The Lancet.

These results provide “the most robust scientific evidence yet that full-blown type 2 diabetes is a curable disease, not inevitably progressive, and irreversible,” senior author Francesco Rubino, MD, chair of bariatric and metabolic surgery at King’s College London, said in a statement from his institution.

“The results of this trial will make a noticeable difference in the field and convince even the most skeptical of clinicians about the role of metabolic surgery as part of optimal care for their patients with difficult to control type 2 diabetes,” predicted two editorialists.

Alexander D. Miras, PhD, section of metabolism, digestion, and reproduction, Imperial College London, and Carel le Roux, MBChB, PhD, of the Diabetes Complications Research Centre, University College Dublin, penned the accompanying commentary.

Patients who had metabolic surgery also had greater weight loss, reduced medication use, lower cardiovascular risk, better quality of life, and a lower incidence of diabetes-related complications compared with those who received medical therapy.

“Clinicians and policymakers should ensure that metabolic surgery is appropriately considered in the management of patients with obesity and type 2 diabetes,” advised Dr. Mingrone of King’s College London and the Catholic University of Rome, and colleagues.
 

“Reassuring results, will make a difference in the field”

“It is reassuring that we now have 10-year data showing greater efficacy of metabolic surgery than conventional medical therapy,” Dr. Miras and Dr. le Roux wrote in their commentary.

There were no unexpected risks associated with surgery, they noted, and the findings are consistent with those of 12 other randomized controlled trials in the past 12 years.

“New generations of diabetologists are now more open to the use of metabolic surgery for patients with suboptimal responses to medical treatments,” they wrote, rather than endlessly intensifying insulin and blaming poor response on poor compliance.

And Dr. Miras and Dr. le Roux “eagerly await” 10-year data from the 150-patient STAMPEDE trial – which is examining sleeve gastrectomy, currently the most widely performed bariatric procedure, as well as Roux-en-Y gastric bypass and medical therapy – following the 5-year results published in 2017.  
 

Diabetes for at least 5 years, mid 40s, half on insulin

Dr. Mingrone and colleagues previously reported 5-year findings from the 60 patients with obesity and advanced diabetes who were seen in a single center in Rome and randomized to three treatments (20 in each group) in 2009-2011.

Biliopancreatic diversion “remains infrequently performed but is still considered the best operation for glycemic control,” the researchers noted.

The primary endpoint was diabetes remission at 2 years (fasting plasma glucose < 100 mg/dL [5.6 mmol/L] and A1c < 6.5%) without the need for ongoing pharmacological treatment for at least 1 year.

Patients were a mean age of 44 years and had a mean body mass index of 44 kg/m^2. About half were men. They had diabetes for a mean of 5.8 years and an average A1c of 8.6%. About half were taking insulin.

Patient retention rate was high (95%) and trial outcomes were assessed by nonsurgeons.

At 10 years, patients’ mean A1c had dropped to 6.4%, 6.7%, and 7.6%, in the biliopancreatic diversion, Roux-en-Y gastric bypass, and medical therapy groups, respectively; only 2.5% of patients in the surgery groups, versus 53% in the medical therapy group, required insulin.

At study end, patients in the surgery groups had lost about 29% of their initial weight versus a weight loss of 4.2% in the medical therapy group.
 

First 2 years after surgery is key

“We also learnt that patients who do not go into remission after 2 years are very unlikely to ever do so,” Dr. Miras and Dr. le Roux observed, which “might help us to intensify modern and potent glucose-lowering therapies like SGLT2 inhibitors and GLP-1 receptor agonists earlier after metabolic surgery.”

Ten of 19 patients (53%) in the biliopancreatic diversion group and 10 of 15 patients (67%) in the Roux-en-Y gastric bypass group who had diabetes remission at 2 years had a diabetes relapse, but at 10 years, they all had adequate glycemic control (mean A1c 6.7%), despite drastically reduced use of diabetes medications.

The two patients who crossed over to surgery from the medical therapy group had postoperative diabetes remission, which was maintained at 10 years in one patient.
 

Better risk-to-benefit ratio with Roux-en-y gastric bypass

No patient in the medical therapy group had a serious adverse event, but one patient in each surgery group had deep vein thrombosis or pulmonary embolism, and one patient in the biliopancreatic diversion group had an episode of atrial fibrillation. There were no late surgical complications.

Iron deficiency and mild osteopenia occurred in both surgical groups, but were more common in the biliopancreatic diversion group. And osteoporosis, transient nyctalopia (night blindness) due to vitamin A deficiency, and kidney stones were observed only with biliopancreatic diversion.

This suggests that despite the greater antidiabetic potential of biliopancreatic diversion, Roux-en-Y gastric bypass might have a more favorable risk-to-benefit profile as a standard surgical option for the treatment of type 2 diabetes, Dr. Mingrone and colleagues concluded.

The authors and Dr. Miras have reported no relevant financial relationships. Dr. le Roux has reported receiving funding from the Science Foundation Ireland, the Health Research Board, and the Irish Research Council for type 2 diabetes research, and serves on several advisory boards outside of the scope of the current study.

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