One Anastomosis (Mini) Gastric Bypass Is Now an Established Bariatric Procedure: a Systematic Review of 12,807 Patients
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The One Anastomosis (Mini) Gastric Bypass is rapidly gaining acceptance. This review reports cumulative results of 12,807 procedures in obese patients with a mean age of 41.18 years and BMI of 46.6 kg/m2. The overall mortality was 0.10% and the leak rate was 0.96%. The follow-up duration ranged from 6 months to 12 years. A marginal ulceration rate of 2.7% and an anaemia rate of 7.0% were reported. Approximately 2.0% of patients reported postoperative gastro-oesophageal reflux and 0.71% developed malnutrition. Excess weight loss at 6, 12, 24 and 60 months was 60.68, 72.56, 78.2 and 76.6% respectively. Type 2 diabetes mellitus and hypertension resolved in 83.7 and 66.94% respectively. We conclude that there is now sufficient evidence to include MGB-OAGB as a mainstream bariatric procedure.
KeywordsBariatric surgery Gastric bypass One anastomosis gastric bypass Mini gastric bypass Single anastomosis gastric bypass Omega loop gastric bypass Loop gastric bypass
One Anastomosis (Mini) Gastric Bypass
Preferred Reporting Items for Systematic Reviews and Meta-Analyses
excess weight loss
randomised controlled trial
Roux-en-Y gastric bypass
laparoscopic adjustable gastric banding
gastro-oesophageal reflux disease
iron deficiency anaemia
Harriet Croxton, Librarian, Whittington Hospital.
KM conceived the idea for the topic. KM and CP participated in literature search. CP collected most of the data and analysed it. CP and KM both contributed to manuscript writing. Both authors have seen the final version and approve of it.
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
For this type of study, ethical approval is not required.
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