The Mini Gastric Bypass (One-Anastomosis Gastric Bypass) creates a long, narrow stomach pouch connected to a loop of small intestine. It combines restriction with mild malabsorption for powerful, durable results.
Overview
Benefits
- Excellent long-term weight loss
- High rate of type-2 diabetes remission
- Shorter operating time than traditional bypass
- Single connection means fewer complications
The Procedure
Performed laparoscopically, the surgeon creates a small stomach pouch and connects it to the small intestine with a single anastomosis, bypassing a segment of the bowel.
Preparation
Similar to sleeve gastrectomy — full evaluation, dietitian counselling and a pre-op diet to reduce liver size.
Recovery
Hospital stay of 2–3 days with return to normal activity in 2–3 weeks and lifelong vitamin supplementation.
Risks & Considerations
Possible risks include bile reflux, nutritional deficiencies and anastomotic issues, all carefully monitored in follow-up.
Frequently Asked Questions
Most patients lose 60–70% of their excess weight within 12–18 months, depending on the procedure and adherence to lifestyle changes.
Most bariatric procedures require a 2–3 day hospital stay, with a return to light activity within one to two weeks.
All Procedures
Related Procedures
Sleeve Gastrectomy
The most popular weight-loss surgery — a safe, effective procedure that reduces stomach size by about 80%.
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The gold-standard bypass — proven long-term results for weight loss and metabolic disease.
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Corrective surgery for patients with weight regain or complications from a previous procedure.
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