Mini-gastric Bypass—One Anastomosis Gastric Bypass in the Armamentarium of Bariatric Surgeon: a Narrative Review of Complications

Abstract

Obesity continues to be a major cause of significant mortality and morbidity across the world. Multiple comorbidities like hypertension, hyperlipidaemia, and diabetes mellitus have been associated with obesity. Bariatric surgery has emerged as a most effective tool for sustainable weight loss in obese individuals. Mini-gastric bypass (MGB) has an advantage of being technically simple and having a shorter learning curve. The objective of the present article is to review the results of mini-gastric bypass based on the available literature. Electronic database search including EMBASE, Web of Science, MEDLINE First Search, OVID, Google Scholar, EBSCO host, Science Direct, and PubMed was performed from inception till October 2020. Mini-gastric Bypass had a short learning curve, took less operative time, and had shorter hospital stay when compared to Roux-en-Y gastric bypass. Mini-gastric bypass had comparable results with Roux-en-Y gastric bypass and better results than sleeve gastrectomy in terms of weight loss and comorbidity resolution. In terms of complications, both had similar marginal ulcer rates, malabsorption rates, and nutritional deficiency rates. Mini-gastric bypass-one anastomosis gastric bypass is documented to be better than Roux-en-Y gastric bypass in terms of internal herniation rates, dumping syndrome, and reactive hypoglycaemia rates. Mini-gastric bypass-one anastomosis gastric bypass is comparable to established bariatric procedures like Roux-en-Y gastric bypass both in terms of efficacy and safety and should be considered a mainstream procedure.