Banded Sleeve Gastrectomy and One Anastomosis Gastric Bypass/Mini-gastric Bypass for Treatment of Obesity: a Retrospective Cohort Comparative Study with 6 years follow-up

Background Banded sleeve gastrectomy (BSG), a modification of the laparoscopic sleeve gastrectomy (SG), and one anastomotic gastric bypass/mini-gastric bypass (OAGB/MGB), a modification to the Roux-en-Y gastric bypass (RYGB), have been reported to enhance weight loss and minimize significant weight regain when compared with the SG and RYGB respectively. However, there has not been any report or study comparing these two operations.