Background

Mini gastric Bypass (MGB) procedure was first described in 1997. Modifications to the technique were described in the literature, like anti-reflux anchoring to prevent bile reflux. However, the efficacy and safety outcomes of this procedure remain debatable. Our study aim is to evaluate the short-term effects of Mini gastric bypass (MGB) for weight regain and reflux post-sleeve.

Methods

A Prospective study was conducted in a single institution University Center in Montreal for 38 patients who underwent OAGB with anti-reflux stitches technique with a biliary limb length of 150 cm for BMI between 40-45, 175 cm for BMI between 45-50, and 200 cm for BMI >50.

Results

Of 38 patients, there is 33 female ( 87%) and five male (13%). The median age is 48, mean preop BMI is 43.5. Surgery was done by laparoscopy ( 76 % ) or robot ( 24 %). There were 26 patients (68%) who had GERD symptoms before the procedure. Upon short-term follow-up between 1 to 9 months, the mean BMI was 35, EWL% was 33%, and there was an improvement in GERD symptoms. Only five ( 13 % ) of the 26 patients had persistent symptoms, with 3 having biliary reflux. One patient had a conversion to RYGBP.One patient developed very early anastomotic stricture which necessitated revision of anastomosis.

Conclusions

OAGB has excellent short-term outcomes regarding weight loss as revisional surgery and resolving GERD symptoms post-sleeve with a low complication rate. Further studies are necessary to evaluate the long term results.