Adjustable Gastric Banding Conversion to One Anastomosis Gastric Bypass: Data Analysis of a Multicenter Database

Introduction One anastomosis gastric bypass (OAGB) has been proposed as a rescue technique for laparoscopic adjustable gastric banding (LAGB) poor responders. Aim We sought to analyze, complications, mortality, and medium-term weight loss results after LAGB conversion to OAGB. Methods Data analysis of an international multicenter database. Results One hundred eighty-nine LAGB-to-OAGB operations were retrospectively analyzed. Eighty-seven (46.0%) were converted in one stage. Patients operated on in two stages had a higher preoperative body mass index (BMI) (37.9 vs. 41.3 kg/m 2 , p = 0.0007) and were more likely to have encountered technical complications, such as slippage or erosions (36% vs. 78%, p