title: Effectiveness and Safety of Bariatric Surgery in the Public Healthcare System in Brazil: Real-World Evidence from a High-Volume Obesity Surgery Center.
abstract: This study aimed to evaluate the waiting time, safety, and effectiveness of bariatric surgery based on real-world data.
  
  
  
  This is a noninterventional, noncomparative, and retrospective study with 300 morbidly obese patients who had undergone open Roux-en-Y surgery.
  
  
  
  The procedure was found to be very safe, with low rates of overall complications (10.7%). Approximately 48.4% of the patients had reached a BMI <30 mg/kg2at 12 months after surgery, while 6% were still classified as morbidly obese (BMI >40 mg/kg2). Comorbidity resolution was over 90% for all conditions, except for cardiovascular disease, which showed a 40% resolution. The mean number of drugs taken also decreased at 12 months after surgery.
  
  
  
  Bariatric surgery was found to be effective in weight reduction and in the resolution of comorbidities.
authors.affiliation: Bariatric Surgery, Clínica Bariátrica, Hospital dos Fornecedores de Cana de Piracicaba, Piracicaba, Brazil. irineu@bariatrica.com.br.
authors.forename: Irineu
authors.initials: I
authors.lastname: Rasera
authors.affiliation: HEMA Brazil, Johnson & Johnson Medical Devices Brazil, Rua gerivatiba, 207, 12 andar, Butantã, São Paulo, SP, Brazil.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Luque
authors.affiliation: HEMA Brazil, Johnson & Johnson Medical Devices Brazil, Rua gerivatiba, 207, 12 andar, Butantã, São Paulo, SP, Brazil.
authors.forename: Silvio Mauro
authors.initials: SM
authors.lastname: Junqueira
authors.affiliation: Medical Affairs/Assuntos Médicos, Johnson & Johnson do Brasil Ind. e Com. de Produtos para Saúde Ltda., Rod. Presidente Dutra, km 154, São José dos Campos, SP, 12240-908, Brazil.
authors.forename: Níssia Capello
authors.initials: NC
authors.lastname: Brasil
authors.affiliation: HEMA Brazil, Johnson & Johnson Medical Devices Brazil, Rua gerivatiba, 207, 12 andar, Butantã, São Paulo, SP, Brazil.
authors.forename: Priscila Caldeira
authors.initials: PC
authors.lastname: Andrade
mesh_terms: D050110:Bariatric Surgery / Q000009:adverse effects / Q000379:methods / Q000706:statistics & numerical data; D001938:Brazil / Q000453:epidemiology; D006801:Humans; D009767:Obesity, Morbid / Q000453:epidemiology / Q000601:surgery; D012189:Retrospective Studies
keywords: Bariatric surgery; Diabetes resolution; Open Roux-en-Y gastric bypass; Public health; Real-world evidence