Comparative Analysis of Various Weight Loss Success Criteria Models After Bariatric Metabolic Surgery in Korean Morbid Obese Patients
10.17476/jmbs.2023.12.2.67
- Author:
Sangjun LEE
1
;
Won Jun SEO
;
Sungsoo PARK
;
Chang Min LEE
;
Yeongkeun KWON
;
Sung Il CHOI
;
Jong-Han KIM
Author Information
1. Department of Surgery, Kyung Hee University Hospital at Gangdong, Seoul, Korea
- Publication Type:Original Article
- From:Journal of Metabolic and Bariatric Surgery
2023;12(2):67-75
- CountryRepublic of Korea
- Language:English
-
Abstract:
Purpose:To identify weight loss prediction models by validating previous models using weight loss success criteria.
Materials and Methods:Patients with morbid obesity from 4 hospitals were retrospectively analyzed between Jan 2019 and 2022. Preoperative demographics, postoperative data, and 1-year follow-up weight loss outcomes were compared between 2 groups who underwent laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB).Additionally, the predictive factors for the success of excess weight loss (EWL) (>50%) and total weight loss (TWL) (>25%) were analyzed.
Results:Of the 162 patients, 137 were enrolled during the study period, 75 underwent LSG, and 62 underwent LRYGB. The >50% EWL and >25% TWL 1 year after surgery were 61.3% and 43.1%, respectively. Diabetes mellitus medication use was reduced in 94.8% of patients with type 2 diabetes mellitus. Male sex and body mass index (BMI) were independent risk factors for successful weight loss (SWL) or >50% EWL (odds ratio [OR] for BMI 0.830, 95% confidence interval [CI] 0.764–0.902), whereas achieving >25% TWL was not affected by sex or BMI (OR for BMI 1.010, 95% CI 0.957–1.065). External validation of the prediction models showed an acceptable range of accuracy (adjusted R 2 66.5–71.3%).
Conclusion:LSG and LRYGB are feasible and effective bariatric procedures for SWL in Korean patients with morbid obesity. The TWL model was a more appropriate criterion than EWL, and weight loss prediction models may help assess the 1-year outcomes of bariatric surgery.
