One anastomosis gastric bypass vs sleeve gastrectomy as a revisional bariatric surgery for weight loss failure after primary restrictive procedure

Two years after surgery, revisional one anastomosis gastric bypass (re-OAGB) resulted in an average BMI of 27 kg/m, compared to 31.5 kg/m for revisional laparoscopic sleeve gastrectomy (re-LSG).

• In the re-LSG group, patients had an average BMI of 40.6 kg/m before the procedure and achieved a 54% excess weight loss (%EWL) after two years.
• The re-OAGB group started with a mean BMI of 36.5 kg/m before surgery and experienced an 86.7% %EWL after the same follow-up period.
• Average BMI before primary surgery was 43.7 kg/m for re-LSG patients and 39 kg/m for those undergoing re-OAGB.
• The average time between primary and revisional surgery was 12.6 years for re-LSG and 10.7 years for re-OAGB.
• Re-OAGB may be more effective for weight reduction in patients with inadequate weight loss or regain after initial restrictive bariatric surgery.

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