Outcomes following reoperative bariatric surgery following laparoscopic sleeve gastrectomy at a tertiary care centre

Introduction: Laparoscopic sleeve gastrectomy (SG) is the most common bariatric surgical procedure worldwide. Approximately 20%-30% of patients present with weight loss failure or reflux following SG, which might require reoperative surgery. We present the surgical outcomes and complications following reoperative bariatric surgery at a tertiary care centre. Patients and Methods: Prospectively collected data of all patients undergoing reoperative bariatric surgery from 2008 to 2021 were analysed retrospectively. Weight loss, resolution of comorbidities and complications following reoperative surgery were evaluated. Results: Twenty-six patients were included in the study. The mean age was 38.8 (10.8) years. The primary procedure performed was laparoscopic SG in all cases. Nine patients underwent Roux en Y gastric bypass (RYGB) (one banded RYGB) and 14 underwent one anastomosis gastric bypass (OAGB) (three-banded OAGB). Three patients underwent resleeve. The most common indication was weight loss failure (65.3%). Fifteen patients were diagnosed to have hiatal hernia intraoperatively and concomitant repair was performed. The mean body mass index before revision surgery was 42.7 (9.8). It was 32.6 (5.7) kg/m(2) and 33.0 (6.1) kg/m(2) at 1 and 3 years, respectively. Age and pre-revision surgery excess weight correlated with weight loss (r = -0.79 and r = 0.99, respectively). Leak and bleeding occurred in one and two patients, respectively. There were two band-related complications and one 30-day mortality. Conclusion: Re-operative bariatric surgery following SG has adequate weight loss with acceptable complication rates. Band placement in re-operative surgery might lead to a higher complication rate.