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Obesity Surgery
Published in: Obesity Surgery 5/2010

01-05-2010 | Clinical Research

Weight Loss Prior to Bariatric Surgery Is Not a Pre-requisite of Excess Weight Loss Outcomes in Obese Patients

Authors: Guillaume Becouarn, Philippe Topart, Patrick Ritz

Published in: Obesity Surgery | Issue 5/2010

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Abstract

Background

Although weight loss before bariatric surgery may carry advantages during the surgical procedure (decreased liver volume, operation duration, and blood loss), it is still debated whether it induces a greater long-term weight loss.

Methods

We conducted a retrospective analysis over 539 patients operated by the same surgeon until September 2008. Five hundred seven primary bariatric surgical procedures were performed: gastric bypass in 381, gastric banding in 97, and sleeve gastrectomy in 29. Preoperative multidisciplinary care was similar for all the patients over a period of 12 months. Relationship between weight changes during this period and the percentage of excess weight loss (%EWL) over the 48 month after surgery was analyzed by logistic regression.

Results

No relationship could be evidenced between pre- and postoperative weight loss, regardless of the surgical technique performed. Whether patients were male or female, and whether they had an initial BMI greater or lower than 50 kg/m2, did not make a difference in the relationship between EWL at any point and weight loss prior to surgery. Despite a large range of weight changes before surgery, there was no trend for a relationship.

Conclusions

This study suggests that weight loss before surgery should not be considered a pre-requisite. Although it can reduce the difficulties of the surgical procedure, advantages for long-term weight loss are not validated.
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Metadata
Title
Weight Loss Prior to Bariatric Surgery Is Not a Pre-requisite of Excess Weight Loss Outcomes in Obese Patients
Authors
Guillaume Becouarn
Philippe Topart
Patrick Ritz
Publication date
01-05-2010
Publisher
Springer-Verlag
Published in
Obesity Surgery / Issue 5/2010
Print ISSN: 0960-8923
Electronic ISSN: 1708-0428
DOI
https://doi.org/10.1007/s11695-010-0083-5

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