The Safety and Efficacy of One Anastomosis Gastric Bypass as a Revision for Sleeve Gastrectomy

Abstract

Introduction: Failure of sleeve gastrectomy poses a potential challenge for surgeons as variable options exist for revision. One anastomosis gastric bypass (OAGB) is a potential revisional option, and in this study, we sought to determine the safety and efficacy of OAGB post sleeve gastrectomy. Method: Prospective study on our initial experience with a consecutive group of patients who underwent OAGB as a revisional surgery for sleeve gastrectomy in the period between January 2015 and December 2018 was carried out. Morbidity and mortality data were recorded as well as the effect on comorbidities and weight loss. Results: A total of 56 patients underwent OAGB as a revision of sleeve gastrectomy. The average weight prior to OAGB was 112 ± 24.6 kg. The minimum weight they have reached after is 85 ± 21.3 kg after a duration of 19 ± 9.2 months. Percentage of total weight loss (TWL%) at 1, 3, 6, and 12 months postoperatively was found to be 7.6%, 9.8%, 14.1%, and 28.8%, respectively. TWL% on the last day of follow-up was 24%. Two patients had marginal ulcers, in which one had a perforation. Conclusion: OAGB is safe and effective for weight regain post sleeve gastrectomy.