Obesity Surgery

, Volume 23, Issue 11, pp 1890–1898 | Cite as

“Mini” Gastric Bypass: Systematic Review of a Controversial Procedure

  • Kamal K. Mahawar
  • Neil Jennings
  • James Brown
  • Ajay Gupta
  • Shlok Balupuri
  • Peter K. Small
Review Article


Mini gastric bypass is being explored by many bariatric surgeons as a standalone bariatric procedure. Several surgeons from different parts of the world have now published their extensive experience with this procedure. It appears to be an effective bariatric procedure with acceptable weight loss, co-morbidity resolution, and complication rates in the short and medium term. Its proponents claim that it is safer and easier than the gold standard Roux-en-Y gastric bypass. However, concerns with regard to symptomatic gastric or oesophageal biliary reflux requiring revisional surgery and long-term risk of gastric and oesophageal cancers persist. This paper reviews the published experience to date with this procedure and examines the surrounding controversy.


Bariatric surgery Obesity surgery Gastric bypass Single anastomosis gastric bypass Omega loop gastric bypass Mini gastric bypass 



Mini gastric bypass


Preferred Reporting Items for Systematic Reviews and Meta-Analyses


Excess weight loss


Randomised controlled trial


Impact of weight on quality of life


Roux-en-Y gastric bypass


Laparoscopic adjustable gastric banding


Vertical banded gastroplasty


Sources of Funding


Conflict of Interest



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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Kamal K. Mahawar
    • 1
    • 2
  • Neil Jennings
    • 1
  • James Brown
    • 1
  • Ajay Gupta
    • 1
  • Shlok Balupuri
    • 1
  • Peter K. Small
    • 1
  1. 1.Bariatric UnitSunderland Royal HospitalSunderlandUK
  2. 2.Consultant General and Bariatric SurgeonSunderland Royal HospitalSunderlandUK

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