Antrum Preservation Versus Antrum Resection in Laparoscopic Sleeve Gastrectomy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Abstract

Purpose To compare the effects of laparoscopic sleeve gastrectomy (LSG) with antrum preservation (AP) and antrum resection (AR) on weight loss and postoperative complications.Methods A meta-analysis of randomized controlled trials (RCTs) followed PRISMA guidelines. The databases searched included PubMed, Web of Science, Embase Medline, and the Cochrane Library up to October 2022. Extracted data included operation time, hospital stay, excess weight loss, total weight loss, body mass index (BMI), weight, and complications.Results Eleven RCTs were included with 843 patients: 422 with AR and 421 with AP. The AR group exhibited higher total weight loss at 3 months (p = 0.02), 6 months (p 0.05).Conclusion LSG with AR offers better short-term weight loss than AP without increasing surgical complications, but the long-term effects and complications need further investigation in larger RCTs.

Keywords

• Laparoscopic sleeve gastrectomy
• antrum preservation
• antrum resection
• weight loss
• postoperative complications