A comparison between one- and two-stage revisional gastric bypass

Area of Science:

• Bariatric Surgery
• Gastrointestinal Surgery
• Minimally Invasive Procedures

Background:

• Safety concerns exist regarding one-stage revision from laparoscopic adjustable gastric banding (LAGB) to laparoscopic Roux-en-Y gastric bypass (LRYGB).
• Previous LAGB procedures may fail, necessitating revisional surgery.
• Understanding the comparative safety and outcomes of one-stage versus two-stage revisional LRYGB is crucial for patient management.

Purpose of the Study:

• To compare the safety and outcomes of one-stage versus two-stage revisional LRYGB following failed LAGB.
• To evaluate early and late complication rates, weight loss, and comorbidity improvement in both procedures.

Main Methods:

• Retrospective analysis of 161 patients undergoing revisional LRYGB after LAGB (January 2007 - March 2017).
• Comparison of one-stage (n=121) versus two-stage (n=40) revision groups.
• Assessment of primary outcome (early complications) and secondary outcomes (late complications, weight loss, comorbidity resolution).

Main Results:

• Early complication rates were similar between one-stage and two-stage revision groups.
• Late complications were significantly more frequent in the two-stage group (20.0% vs. 7.4%), including higher rates of gastro-gastric fistula and anemia.
• Both groups achieved comparable weight loss and comorbidity improvement, with over 75% follow-up exceeding 6 months.

Conclusions:

• One-stage revisional LRYGB after failed LAGB is a safe procedure with non-inferior outcomes compared to two-stage revisions.
• This approach offers a valid alternative, except in cases involving mechanical or infectious complications of the gastric band.
• Further research may explore specific patient selection criteria for one-stage revision.