title: Weight loss eight years after gastric bypass.
abstract: OBJECTIVE
  To evaluate the effectiveness of banded Roux-en-Y gastric bypass in promoting weight loss after an eight-year follow-up.
  
  
  METHODS
  Two hundred and eleven obese patients underwent Roux-en-Y gastric bypass with banding by the same surgical team. The study design was longitudinal, prospective and descriptive. The analysis of weight decrease in the postoperative period was based on the loss of excess weight in percentage and BMI. Failure was considered when patients lost <50% of excess weight.
  
  
  RESULTS
  The loss of follow-up was 36.5%, therefore, 134 patients were included in this study. The loss of excess weight in global average rate in the postoperative period was: 67.6 ± 14.9% in the first year, 72.6 ± 14.9% in the second year, 69.7 ± 15.1% in fifth year and 66.8 ± 7.6 in eight years. Surgical treatment failure occurred in 15 patients (7.1%) over the period.
  
  
  CONCLUSIONS
  Banded Roux-en-Y gastric bypass was effective in promoting and sustaining weight loss in the long term, with low failure rates.
authors.affiliation: Department of Surgery, Hospital Universitário da Universidade Estadual de Londrina, Paraná, Brazil. valezi@sercomtel.com.br
authors.forename: Antonio Carlos
authors.initials: AC
authors.lastname: Valezi
authors.forename: Jorge
authors.initials: J
authors.lastname: Mali Junior
authors.forename: Mariano de Almeida
authors.initials: Mde A
authors.lastname: Menezes
authors.forename: Edivaldo Macedo de
authors.initials: EM
authors.lastname: Brito
authors.forename: José Carlos Lacerda de
authors.initials: JC
authors.lastname: Souza
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D015390:Gastric Bypass; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013997:Time Factors; D015431:Weight Loss; D055815:Young Adult