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Obesity Surgery
Published in: Obesity Surgery 4/2016

01-04-2016 | Original Contributions

Conversion of Open Vertical Banded Gastroplasty to Roux-en-Y Gastric Bypass: a Single-Center, Single-Surgeon Experience with 6 Years of Follow-up

Authors: Ben Gys, Filip Haenen, Michael Ruyssers, Tobie Gys, Thierry Lafullarde

Published in: Obesity Surgery | Issue 4/2016

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Abstract

Background

The aim of this study is to assess feasibility, relief of complications and mid- and long-term weight loss results following the conversion of open vertical banded gastroplasty (VBG) to Roux-en-Y gastric bypass (RYGB).

Materials and Methods

Retrospective analysis of patients undergoing conversion of open VBG to RYGB (open and laparoscopic) between 1 April 2000 and 1 January 2015 was performed. (Post)operative complications were listed. Weight loss was assessed using excess weight (EW), percentage excess weight loss (%EWL) and body mass index (BMI) at 1-year intervals after surgery. Ideal weight was determined by recalculating individual lengths to a BMI of 25 kg/m2. Application of polynomial regression models was used to quantify weight loss over time.

Results

Ninety patients were identified in the database. Mean time between bariatric interventions was 9.6 years. Reasons for conversion were insufficient weight loss (82.2 %) and outlet obstruction (17.8 %). Early complications were encountered in eight patients of which three were reoperated. Patients who underwent conversion for inadequate weight loss after VBG were retrospectively analyzed regarding weight loss: 78.0 % EWL after 1 year, 71.4 % after 2 years, 62.1 % after 3 years, 64.1 % after 4 years, 70.2 % after 5 years, and 68.9 % after 6 years. Outlet obstruction was relieved in 94 %. Patient satisfaction was assessed by telephone: 86.4 % would repeat the conversion.

Conclusions

Conversion of open VBG to RYGB is feasible and safe and can be performed with an acceptable complication rate. It gives excellent weight loss results and relief of outlet obstruction.
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Metadata
Title
Conversion of Open Vertical Banded Gastroplasty to Roux-en-Y Gastric Bypass: a Single-Center, Single-Surgeon Experience with 6 Years of Follow-up
Authors
Ben Gys
Filip Haenen
Michael Ruyssers
Tobie Gys
Thierry Lafullarde
Publication date
01-04-2016
Publisher
Springer US
Published in
Obesity Surgery / Issue 4/2016
Print ISSN: 0960-8923
Electronic ISSN: 1708-0428
DOI
https://doi.org/10.1007/s11695-015-1818-0

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