One Anastomosis/Mini Gastric Bypass (OAGB-MGB) as revisional bariatric surgery after failed primary adjustable gastric band (LAGB) and sleeve gastrectomy (SG): A systematic review of 1075 patients

Chetan D. Parmar, Jonathan Gan, Christine Stier, Zhiyong Dong, Sonja Chiappetta, Luciana El-Kadre, Moataz M. Bashah, Cunchuan Wang, Nasser Sakran

Research output: Contribution to journalReview articlepeer-review

48 Scopus citations

Abstract

Background: One Anastomosis/Mini Gastric Bypass (OAGB-MGB) is rapidly gaining popularity and is now the third common bariatric procedure performed in the world. The aim of this review is to look at the role of this operation as a revisional bariatric surgery (RBS). Methods: Literature review was performed following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) and the AMSTAR (Assessing the methodological quality of systematic reviews) guidelines. Total 17 studies were eligible. Results: This review reports cumulative results of 1075 revisional OAGB-MGB procedures. Primary procedures included gastric banding (LAGB), Sleeve gastrectomy (SG), vertical banded gastroplasty (VBG) and gastric plication. The mean age was 43.1 years and female to male ratio was 3.04: 1. The body mass index (BMI) at primary procedure was 47.05 kg/m2. The mean BMI at revisional surgery was 41.6 kg/m2 (range 28–70.8). The mean time between the primary and the secondary operation was 46.5 months (3–264). The mean follow-up was 2.44 years (6–60 months). The mean operative time was 119.3 min. The mean length of hospital stay was 4.01 days (2–28). The median limb length was 200 cm (range 150–250 cm). Leak rate was 1.54%. Marginal ulcer rate was 2.44%. Anemia rate was 1.9%. Mortality was 0.3%. The excess weight loss (%EWL) at 1 year and 2 years was 65.2% and 68.5% respectively. Conclusion: We conclude that there is evidence to consider OAGB-MGB as a safe and effective choice for RBS. Randomised studies with long term follow-up are suggested for the future.

Original languageEnglish
Pages (from-to)32-38
Number of pages7
JournalInternational Journal of Surgery
Volume81
DOIs
StatePublished - Sep 2020
Externally publishedYes

Bibliographical note

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© 2020 IJS Publishing Group Ltd

Keywords

  • Mini gastric bypass
  • One anastomosis gastric bypass
  • Revision bariatric surgery
  • Secondary bariatric surgery

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