Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?

Background. Many institutions mandate preoperative weight loss prior to bariatric surgery. This study examines the correlation between preoperative weight change and postoperative success following laparoscopic Roux-en-Y gastric bypass. Methods. We retrospectively studied the correlation between cha...

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Main Authors: Dan Eisenberg, Andrew J. Duffy, Robert L. Bell
Format: Article
Language:English
Published: Wiley 2010-01-01
Series:Journal of Obesity
Online Access:http://dx.doi.org/10.1155/2010/907097
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author Dan Eisenberg
Andrew J. Duffy
Robert L. Bell
author_facet Dan Eisenberg
Andrew J. Duffy
Robert L. Bell
author_sort Dan Eisenberg
collection DOAJ
description Background. Many institutions mandate preoperative weight loss prior to bariatric surgery. This study examines the correlation between preoperative weight change and postoperative success following laparoscopic Roux-en-Y gastric bypass. Methods. We retrospectively studied the correlation between change in BMI before surgery and change in BMI postoperatively, using linear regression analyses and one-way ANOVA, in 256 consecutive gastric bypass patients with 1-year followup. Results. Of 256 patients, 125 lost weight preoperatively (mean −1.7% BMI), while 131 maintained or gained weight (mean +1.2% BMI). Postoperatively, there was no significant difference in percent BMI loss between the two groups (34.6% and 34.5%). The percent change in BMI preoperatively did not predict postoperative BMI change after 1 year (𝑃=n.s.). Conclusions. Our study did not show any correlation between preoperative weight change and postoperative weight loss after Roux-en-Y gastric bypass. Therefore, we do not believe that potential patients should be denied bariatric surgery on the basis of their inability to lose weight preoperatively.
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spelling doaj-art-d0d71cf0d9b54676959cec46e6fdaf0d2025-02-03T06:10:48ZengWileyJournal of Obesity2090-07082090-07162010-01-01201010.1155/2010/907097907097Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?Dan Eisenberg0Andrew J. Duffy1Robert L. Bell2Department of Surgery, Stanford School of Medicine, Stanford, CA 94305, USASection of Gastrointestinal Surgery, Department of Surgery, Yale School of Medicine, 40 Temple Street, Ste 7B, New Haven, CT 06520, USASection of Gastrointestinal Surgery, Department of Surgery, Yale School of Medicine, 40 Temple Street, Ste 7B, New Haven, CT 06520, USABackground. Many institutions mandate preoperative weight loss prior to bariatric surgery. This study examines the correlation between preoperative weight change and postoperative success following laparoscopic Roux-en-Y gastric bypass. Methods. We retrospectively studied the correlation between change in BMI before surgery and change in BMI postoperatively, using linear regression analyses and one-way ANOVA, in 256 consecutive gastric bypass patients with 1-year followup. Results. Of 256 patients, 125 lost weight preoperatively (mean −1.7% BMI), while 131 maintained or gained weight (mean +1.2% BMI). Postoperatively, there was no significant difference in percent BMI loss between the two groups (34.6% and 34.5%). The percent change in BMI preoperatively did not predict postoperative BMI change after 1 year (𝑃=n.s.). Conclusions. Our study did not show any correlation between preoperative weight change and postoperative weight loss after Roux-en-Y gastric bypass. Therefore, we do not believe that potential patients should be denied bariatric surgery on the basis of their inability to lose weight preoperatively.http://dx.doi.org/10.1155/2010/907097
spellingShingle Dan Eisenberg
Andrew J. Duffy
Robert L. Bell
Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?
Journal of Obesity
title Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?
title_full Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?
title_fullStr Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?
title_full_unstemmed Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?
title_short Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?
title_sort does preoperative weight change predict postoperative weight loss after laparoscopic roux en y gastric bypass in the short term
url http://dx.doi.org/10.1155/2010/907097
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