Evaluation of nutritional and psychological factors in the preoperative period and weight evolution in the mid-late postoperative period of bariatric surgery

• Grant number: 18/23991-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: July 01, 2019
• End date: June 30, 2020
• Field of knowledge: Health Sciences - Nutrition
• Principal Investigator: Carla Barbosa Nonino
• Grantee: Sofia Teixeira Prates de Oliveira
• Host Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

Recurrence of obesity in patients undergoing bariatric surgery is related to several factors, among them the presence of eating and psychological disorders in the preoperative period, which can influence the evolution of weight in subsequent years. Objective: To evaluate the nutritional and psychological factors (such as anxiety and depression) as determinants of the pre-operative and post-operative weight evolution in the late (5 years) of obese individuals submitted to the DGYR attended by SUS. Methods: Individuals aged between 18 and 60 years, who underwent bariatric surgery by the DGYR technique, will be included in 2014 and will complete 5 years post-operatively in 2019. A descriptive study with two steps, in the first retrospective stage, will be included. the medical records were analyzed and anthropometric data were collected, food intake, presence or absence of BED and identification of symptoms of anxiety and depression in the preoperative period. In the second transversal stage, individuals will be submitted to anthropometric data (weight, height, BMI and waist circumference) and body composition, analysis of food intake, analysis of the presence or absence of BED by means of interview and application of the Periodic Feeding Compulsive Disorder (ECAP) and identification of anxiety and depression symptoms. Statistical analysis of the data will use Kolmogorov-Smirnov, Kruskal-Wallis, ANOVA, Pearson and Spearman correlation, as well as specific bioinformatics software. Significance level will be accepted for p <0.05.