The role of extended antral resection on weight loss and metabolic response after sleeve gastrectomy: a retrospective cohort study

LSG was initially designed as the first step of a two-staged bariatric procedure. However, in the following years, LSG was found as effective as other bariatric procedures and has become increasingly popular as a stand-alone bariatric procedure [1,2]. Recently, LSG is the most performed bariatric procedure worldwide [3]. The simplicity of surgical technique, preservation of the pyloric functions, none development of marginal ulcers or internal herniation, less need of trace element and vitamin supplementation are the advantages of LSG over other bariatric procedures [4-6]. However, debate continues regarding the AR or AP on effective weight loss alterations and metabolic response. Further, the distance from pylorus at which the stomach division should be started is still not standardized and has been reported varying from 2 to 8cm [7-9]. The aim of the present retrospective cohort study was to determine whether AR is superior to AP regarding weight loss and resolution of co-morbidities.