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Obes Surg. 2004 Nov-Dec;14(10):1349-53.

Laparoscopic conversion of laparoscopic gastric banding to Roux-en-Y gastric bypass: a review of 70 patients.

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Service de chirurgie générale A, CHU Bichat-Claude Bernard, Paris, France.



The feasibility and outcomes of conversion of laparoscopic adjustable gastric banding (LAGB) to laparoscopic Roux-en-Y gastric bypass (LRYGBP) was evaluated.


From November 2000 to March 2004, all patients who underwent laparoscopic conversion of LAGB to LRYGBP were retrospectively analyzed. The procedure included adhesiolysis, resection of the previous band, creation of an isolated gastric pouch, 100-cm Roux-limb, side-to-side jejuno-jejunostomy, and end-to-end gastro-jejunostomy.


70 patients (58 female, mean age 41) with a median BMI of 45+/-11 (27-81) underwent attempted laparoscopic conversion of LAGB to an RYGBP. Indications for conversion were insufficient weight loss or weight regain after band deflation for gastric pouch dilatation in 34 patients (49%), inadequate weight loss in 17 patients (25%), symptomatic proximal gastric pouch dilatation in 15 patients (20%), intragastric band migration in 3 patients (5%), and psychological band intolerance in 1 patient. 3 of 70 patients (4.3%) had to be converted to a laparotomy because of severe adhesions. Mean operative time was 240+/-40 SD min (210-280). Mean hospital length of stay was 7.2 days. Early complication rate was 14.3% (10/70). Late major complications occurred in 6 patients (8.6%). There was no mortality. Median excess body weight loss was 70+/-20%. 60% of patients achieved a BMI of <33 with mean follow-up 18 months.


Laparoscopic conversion of LAGB to RYGBP is a technically challenging procedure that can be safely integrated into a bariatric treatment program with good results. Short-term weight loss is very good.

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