Remnant Gastrectomy and Gastric Bypass: A Systematic Review of Indications and Outcomes of Resectional Gastric Bypass

Shahab Shahabi Shahmiri; Erfan Sheikhbahaei; Amirhossein Davarpanah Jazi; Hamidreza Zefreh; Wah Yang; Rohollah Valizadeh; Rui Ribeiro; Mohammad Kermansaravi

doi:10.1007/s11695-024-07240-2

Remnant Gastrectomy and Gastric Bypass: A Systematic Review of Indications and Outcomes of Resectional Gastric Bypass

Obes Surg. 2024 May 13. doi: 10.1007/s11695-024-07240-2. Online ahead of print.

Authors

Shahab Shahabi Shahmiri^{1

2}, Erfan Sheikhbahaei^{3

4}, Amirhossein Davarpanah Jazi⁵, Hamidreza Zefreh⁴, Wah Yang^{6

7}, Rohollah Valizadeh⁸, Rui Ribeiro⁹, Mohammad Kermansaravi^{1

2}

Affiliations

¹ Department of Surgery, Division of Minimally Invasive and Bariatric Surgery, School of Medicine, Rasool-e Akram University Hospital, Iran University of Medical Sciences, Tehran, Iran.
² Center of Excellence of European Branch of International Federation for Surgery of Obesity, Hazrat-e Rasool University Hospital, Tehran, Iran.
³ Minimally Invasive and Bariatric Surgery Research Center of Rasool-e Akram University Hospital, Iran University of Medical Sciences, Manaouri St., Niyayesh St., Sattar Khan St., Tehran, Iran.
⁴ Minimally Invasive Surgery and Obesity Research Center, School of Medicine, Alzahra University Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.
⁵ Minimally Invasive and Bariatric Surgery Research Center of Rasool-e Akram University Hospital, Iran University of Medical Sciences, Manaouri St., Niyayesh St., Sattar Khan St., Tehran, Iran. davarpanahjazi@gmail.com.
⁶ Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China.
⁷ The State Key Laboratory of Pharmaceutical Biotechnology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
⁸ Urmia University of Medical Sciences, Urmia, Iran.
⁹ Hospital Lusiadas Amadora Metabolic Surgery Unit and General Surgery Department Coordinator, Amadora, Portugal.

PMID: 38735966
DOI: 10.1007/s11695-024-07240-2

Abstract

Background: In this systematic review, we aim to evaluate the reasons and outcomes behind remnant gastrectomy with or after gastric bypass procedures.

Results: A total of 66 studies examining 1918 patients were included in this study with 70% of female predominance. Twenty studies reported RGB on 1751 patients and 46 studies reported remnant gastrectomy after gastric bypass in 167 patients. The most common etiology of RGB was related to the in situ remnant stomach neoplasia in 10 studies on 981 patients; mostly for preventive intentions in high prevalence areas. Remnant gastrectomy after gastric bypass was performed to treat a complication such as GGF, retrograde bile reflux gastritis, cancer mostly adenocarcinoma. Studies revealed that RGB has similar weight loss in comparison to standard Roux-en-Y gastric bypass.

Keywords: Gastric bypass; Metabolic surgery; Remnant gastrectomy; Resectional gastric bypass; Weight loss surgery.

Publication types

Review