Among obese participants with type 2 diabetes mellitus, bariatric surgery with 2 years of a low-level lifestyle intervention resulted in more disease remission than did lifestyle intervention alone, according to a study published online by JAMA Surgery. It remains to be established whether bariatric surgery is a durable and effective treatment for type 2 diabetes (T2DM) and how bariatric surgery compares with intensive lifestyle modification and medication management with respect to T2DM-related outcomes.

As demonstrated in observational studies and several small randomized clinical trials of short duration, T2DM is greatly improved after bariatric surgery. However, more information is needed about the longer-term effectiveness and risks of all types of bariatric surgical procedures compared with lifestyle and medical management for those with T2DM and obesity, according to background…