Revision Operation to One Anastomosis Gastric Bypass for failed Sleeve Gastrectomy

Abstract Background There are few publications on revising the Sleeve Gastrectomy (SG) to One Anastomosis Gastric Bypass (OAGB). Objective This study was undertaken to determine the outcome in terms of weight loss and resolution of co-morbidities in patients who had SG revised to OAGB procedure. Settings A high-volume university affiliated bariatric surgery centre in India. Method Information was collected from identified patients in a prospectively maintained database of patients who had a revision operation from SG to OAGB. An analysis as to the outcome in terms of weight loss and maintenance with up to 3-years follow-up is reported. Results 32 patients were revised from SG to OAGB. Of the 32 revised patients, 9(28%) had type 2 diabetes (T2D), 15(47%), hypertension (HTN) and 2(6%) sleep apnea (SA) at the time of the initial SG. At the time of revision only 2/32(6.25%) had T2D, 3/32(9.4%) HTN and none with SA. The average initial weight in this study before the SG was 118 kg. and the body mass index (BMI) 44.04 kg/m2. The average weight at the nadir and at revision was 92.1 kg. and 103.5 kg. respectively. The average weight was 93.5 kg., 94.3 kg. and 100.6 (p Conclusion In this study, revision of SG to OAGB because of inadequate weight loss or significant weight regain was safe and effective at 2-years follow-up however there was a tendency towards weight regain at 3-years. Multi-center studies with larger series of patients and longer-term follow-up after SG revision to OAGB are needed.