title: Weight loss outcome after Roux-en-Y gastric bypass: 10 years of follow-up.
abstract: BACKGROUND
  By submitting obese people to surgical treatment, we hope they lose weight and stay slim. Long-term monitoring is essential to assess effectiveness of surgery. This study aims to evaluate weight loss over 10 years in an obese population undergoing banded Roux-en-Y gastric bypass (B-RYGBP).
  
  
  METHODS
  The surgery was performed in 211 obese between May 1999 and December 2000. This prospective study evaluated excess weight loss (%EWL) and body mass index (BMI) during the period. We considered surgical treatment failure if %EWL was less than 50 %.
  
  
  RESULTS
  We followed 54.9 % of the population (116 patients). Patients' %EWL was 67.6 ± 14.9 % 1 year after surgery, 72.6 ± 14.9 % after 2 years, 69.7 ± 15.1 % after 5 years, 66.8 ± 7.6 % after 8 years, and 67.1 ± 11.9 % after 10 years postoperatively. Surgical treatment failure occurred in 16 patients (14.6 %) over 10 years.
  
  
  CONCLUSIONS
  B-RYGBP is a good technique to promote and maintain weight loss 10 years after surgery with low failure rate.
authors.affiliation: Department of Surgery, State University of Londrina, Rua Santos 777 apto 1302, 86020041, Londrina, PR, Brazil. valezi@sercomtel.com.br
authors.forename: Antonio Carlos
authors.initials: AC
authors.lastname: Valezi
authors.forename: Mariano
authors.initials: M
authors.lastname: de Almeida Menezes
authors.forename: Jorge
authors.initials: J
authors.lastname: Mali
mesh_terms: D000328:Adult; D000368:Aged; D015992:Body Mass Index; D001835:Body Weight; D001938:Brazil / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D015390:Gastric Bypass; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000453:epidemiology / Q000601:surgery*; D011184:Postoperative Period; D011446:Prospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D015431:Weight Loss