In Brief:
After a median follow-up of 6 years in 217 severely obese patients with type 2 diabetes (T2DM), bariatric surgery (gastric bypass, gastric banding, and sleeve gastrectomy) resulted in complete remission [A1C (glycated hemoglobin) < 6%, FBG (fasting blood glucose) < 100 mg/dL] in 24%, partial remission (A1C = 6.0%–6.4%, FBG = 100–125 mg/dL) in 26%, improvement (>1% decrease in A1C) in 34%, and no change in 16%. Recurrence occurred in 19% of patients after achieving remission, but 75% who recurred maintained an A1C less than 7%. Shorter duration of T2DM and weight loss were predictors of complete remission.