Validation of the Alterable Weight Loss Metric in Morbidly Obese Patients Undergoing Gastric Bypass in Korea

Validation of the Alterable Weight Loss Metric in Morbidly Obese Patients Undergoing Gastric... Background Percentage of excess weight loss (%EWL) is the most common metric used after bariatric surgery. However, there has been consistent argument against its use since it varies significantly by initial body mass index (BMI). This study aimed to validate the newly suggested percentage of alterable weight loss (%AWL) metric in Korean patients. Methods A retrospective review of the prospectively established database at Soonchunhyang University Seoul Hospital identi- fied 165 patients who underwent primary laparoscopic Roux-en-Y gastric bypass (RYGB) and had at least 2-year follow-up weight loss results after surgery. Patients were classified into subgroups based on initial BMI, and their weight loss results expressed as BMI, %EWL, %AWL, and percentage of total weight loss (%TWL) were compared in terms of nadir weight and weight loss trajectory. Results The study cohort included 27 male (16.4%) and 138 female (83.6%) patients with a mean baseline BMI of 38.1 ± 5.4. Nadir weight was achieved at mean 24.1 ± 10.6 months postoperatively. Female patients required significantly longer to achieve nadir weight than male patients (16.2 vs. 22.4 months, p = 0.001), and they achieved less weight loss expressed as nadir BMI, %EWL, and %AWL. Of these metrics, only %AWL was not http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Obesity Surgery Springer Journals

Validation of the Alterable Weight Loss Metric in Morbidly Obese Patients Undergoing Gastric Bypass in Korea

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Medicine & Public Health; Surgery
ISSN
0960-8923
eISSN
1708-0428
D.O.I.
10.1007/s11695-017-3084-9
Publisher site
See Article on Publisher Site

Abstract

Background Percentage of excess weight loss (%EWL) is the most common metric used after bariatric surgery. However, there has been consistent argument against its use since it varies significantly by initial body mass index (BMI). This study aimed to validate the newly suggested percentage of alterable weight loss (%AWL) metric in Korean patients. Methods A retrospective review of the prospectively established database at Soonchunhyang University Seoul Hospital identi- fied 165 patients who underwent primary laparoscopic Roux-en-Y gastric bypass (RYGB) and had at least 2-year follow-up weight loss results after surgery. Patients were classified into subgroups based on initial BMI, and their weight loss results expressed as BMI, %EWL, %AWL, and percentage of total weight loss (%TWL) were compared in terms of nadir weight and weight loss trajectory. Results The study cohort included 27 male (16.4%) and 138 female (83.6%) patients with a mean baseline BMI of 38.1 ± 5.4. Nadir weight was achieved at mean 24.1 ± 10.6 months postoperatively. Female patients required significantly longer to achieve nadir weight than male patients (16.2 vs. 22.4 months, p = 0.001), and they achieved less weight loss expressed as nadir BMI, %EWL, and %AWL. Of these metrics, only %AWL was not

Journal

Obesity SurgerySpringer Journals

Published: Mar 12, 2018

References

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