- Researchers report that people with pre diabetes who have weight loss surgery are 20 times less likely to develop diabetes than those who did not have surgery.
- They added that people with type 2 diabetes who had Roux-en-Y gastric bypass surgery remained in remission for up to 15 years.
- They note that a third type of bariatric surgery – SADI-S or SIPS – does not produce the glucose level swings that people who have other types of weight loss surgery might have.
Two studies on gastric surgeries and diabetes have been presented at the American Society for Metabolic and Bariatric Surgery’s 2024 Annual Scientific Meeting.
In one study, researchers reported that people with prediabetes and severe obesity who had gastric surgery were much less likely to develop type 2 diabetes than people with prediabetes who did not have bariatric surgery.
The other study concluded that type 2 diabetes could remain in remission after surgery for 15 years and most people who underwent the procedures sustained their weight loss for at least 20 years.
The first study, which hasn’t been published yet in a peer-reviewed journal, was a retrospective review of research.
In it, researchers looked at 1,326 participants who had prediabetes and underwent either Roux-en-Y gastric bypass or sleeve gastrectomy between 2001 and 2022.
More than 80% of the participants were female with an average age of 45 and a mean body mass index (BMI) of nearly 47. The mean follow-up period was about 7 years.
The researchers reported that the participants who had obesity and prediabetes and who underwent bariatric surgery were 20 times less likely to develop type 2 diabetes over 15 years than those who did not undergo surgery.
During follow-up, the scientists also found that:
- Nearly 2% of participants progressed to diabetes within 5 years after surgery.
- About 3% of participants progressed to diabetes within 10 years after surgery.
- Less than 7% of participants progressed to diabetes within 15 years after surgery.
In comparison, 31% of those with prediabetes who did not have metabolic surgery developed type 2 diabetes within 5 years. In addition, 51% of participants with prediabetes who didn’t have the surgery developed type 2 diabetes within 10 years with 68% developing diabetes within 15 years.
The researchers also noted weight loss, indicating that those who had bariatric surgery lost an average of 29% of their body weight at 12 months and 27% at 36 months.
“Prediabetes is diabetes,” said Dr. Christine Ren-Fielding, the chief of bariatric surgery at NYU Langone Health and surgical director of NYU Langone’s Weight Management Program in New York. “Some people think in terms of ‘it’s only prediabetes.’ But you shouldn’t wait until you have diabetes. If you have prediabetes, you should take it seriously.”
“If you are working to manage your weight or blood sugar, having prediabetes means your treatment strategies aren’t working, and you should talk to your doctor about adjusting treatments,” Ren-Fielding, who wasn’t involved in the study, told Medical News Today.
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