Indications, Operative Techniques, and Outcomes for Revisional Operation Following Mini-Gastric Bypass-One Anastomosis Gastric Bypass: a Systematic Review

Usah Khrucharoen; Yen-Yi Juo; Yijun Chen; Erik P Dutson

doi:10.1007/s11695-019-04276-7

Indications, Operative Techniques, and Outcomes for Revisional Operation Following Mini-Gastric Bypass-One Anastomosis Gastric Bypass: a Systematic Review

Obes Surg. 2020 Apr;30(4):1564-1573. doi: 10.1007/s11695-019-04276-7.

Authors

Usah Khrucharoen^{1

2}, Yen-Yi Juo^{1

2}, Yijun Chen¹, Erik P Dutson^{3

4}

Affiliations

¹ Section of Minimally Invasive and Bariatric Surgery, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Box 956904, 72-239 CHS, Los Angeles, CA, 90095, USA.
² UCLA Center for Advanced Surgical & Interventional Technology (CASIT), Los Angeles, CA, USA.
³ Section of Minimally Invasive and Bariatric Surgery, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Box 956904, 72-239 CHS, Los Angeles, CA, 90095, USA. EDutson@mednet.ucla.edu.
⁴ UCLA Center for Advanced Surgical & Interventional Technology (CASIT), Los Angeles, CA, USA. EDutson@mednet.ucla.edu.

PMID: 31982993
DOI: 10.1007/s11695-019-04276-7

Abstract

In addition to being a relatively reversible and less complex operation, mini-gastric bypass-one anastomosis gastric bypass (MGB-OAGB) has demonstrated comparable weight loss and metabolic improvement rates with Roux-en-Y gastric bypass (RYGB). However, surgical strategies for managing its failures and late complications were poorly defined. This article aims to review the indications, operative techniques, and outcomes for revisional surgery following MGB-OAGB. A systematic review was performed using the PubMed database from 1997 to 2019. Of 179 included patients, 89 underwent revision to RYGB; 52 to sleeve gastrectomy (SG); 32 reversal to original anatomy; and 6 underwent partial revision with gastro-gastrostomy alone. Most common indications were severe malnutrition, chronic bile reflux, intractable marginal ulcerations, and insufficient weight loss. Postoperative complication rates ranged from 5 to 35%.

Keywords: Conversion; Mini-gastric bypass; Omega-loop gastric bypass; One anastomosis gastric bypass; Operative techniques; Revision.

Publication types

Review
Systematic Review

MeSH terms

Gastrectomy
Gastric Bypass*
Humans
Obesity, Morbid* / surgery
Reoperation
Retrospective Studies
Weight Loss