Sophia Helena Camargos Moreira, Jacqueline Isaura Alvarez-Leite, Renan Pedra Souza, Giulia Carregal Resmini, Cristina Maria Mendes Resende, Luiz de Marco, Luciana Bastos-Rodrigues
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引用次数: 0
Abstract
Background: Roux-en-Y gastric bypass (RYGB) is a standard treatment for severe obesity, but some patients do not achieve the expected success in weight loss. The aim of this study was to evaluate possible predictors of weight loss after RYGB.
Methods: Sixty-three patients were included. Pre- and postoperative data were collected from medical records, including comorbidities, anthropometry, energy/macronutrient intake, and physical activity level (PAL). Variants in the brain-derived neurotrophic factor (BDNF; rs6265) and lysophospholipase like 1 (LYPLAL1; rs4846567) genes were investigated. Excess weight loss (EWL) >50% was considered to be successful weight loss (SWL). Logistic regression models were used to verify predictor variables.
Results: Participants' median preoperative body mass index (BMI) was 53 kg/m2 (interquartile range, 46 to 58). At 12 and 24 months after surgery, EWL was 63% and 67%, and the failure rate was 19% and 16%, respectively. The individuals with insufficient weight loss (IWL) after 12 months had higher preoperative weight, BMI, and overweight. At 24 months, lowest frequency of individuals with SWL in the first year was found in the IWL group. No significant differences were found between the groups in dietary intake and PAL. In the logistic regression, high initial BMI was a predictor of the worst response in both periods, and high initial total weight loss was a predictor of a better response at 24 months. The polymorphism analysis did not show differences between groups in either gene.
Conclusion: Lower preoperative BMI and greater weight loss at 12 months were predictors of SWL after RYGB.
期刊介绍：
The journal was launched in 1992 and diverse studies on obesity have been published under the title of Journal of Korean Society for the Study of Obesity until 2004. Since 2017, volume 26, the title is now the Journal of Obesity & Metabolic Syndrome (pISSN 2508-6235, eISSN 2508-7576). The journal is published quarterly on March 30th, June 30th, September 30th and December 30th. The official title of the journal is now "Journal of Obesity & Metabolic Syndrome" and the abbreviated title is "J Obes Metab Syndr". Index words from medical subject headings (MeSH) list of Index Medicus are included in each article to facilitate article search. Some or all of the articles of this journal are included in the index of PubMed, PubMed Central, Scopus, Embase, DOAJ, Ebsco, KCI, KoreaMed, KoMCI, Science Central, Crossref Metadata Search, Google Scholar, and Emerging Sources Citation Index (ESCI).
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