Retrospective evaluation of mid- and long-term outcomes of bariatric surgery on obesity control in Indian population

Context: Bariatric surgery is an effective method in inducing significant weight loss in patients suffering from obesity. Despite the strong evidence on its clinical effects, the data on its mid- and long-term follow-ups and durability are limited. This study is to evaluate the impact of bariatric surgical procedures on weight loss and resolution of comorbidities after surgery. Subjects and Methods: This was a retrospective, single-center cohort study including 1468 participants in whom laparoscopic sleeve gastrectomy, Roux-en-Y gastric bypass, one-anastomosis gastric bypass, and balloon were performed between 2010 and 2019. Standardized weight loss measures were compared using an analysis of covariance. Results: The mean (standard deviation) age of patients involved in this study is 43.41 ± 12.09 years with a preoperative weight and body mass index (BMI) of 117.23 ± 23.027 and 44.93 ± 8.02, respectively. The mean follow-up period is 2.9 years (0.83–9 years). Patients reported a mean percentage total weight loss (%TWL) of 8.1 ± 15.66%, percentage excess weight loss (%EWL) of 18.92 ± 40.56, and excess BMI loss of 18.38 ± 42.7 at the follow-up point of 9 years. The remission of diabetes was significantly improved by 17%. 0.89% of patients adhered to follow-up visits till the end of the study. Conclusions: Bariatric surgery demonstrated a beneficial association resulting in substantial weight loss and remission of diabetes. Further large, multi-site cohort studies on Indian population are needed to substantiate the evidence.