title: Laparoscopic Roux-en-Y gastric bypass versus laparoscopic sleeve gastrectomy for the treatment of morbid obesity. a prospective study with 5 years of follow-up.
abstract: BACKGROUND
  Laparoscopic Roux-en-Y gastric bypass (LRYGB) is one of the most widely used bariatric procedures today, and laparoscopic sleeve gastrectomy (LSG) is becoming increasingly popular. The aim of this study was to compare mid-term results of both procedures.
  
  
  METHODS
  From January 2008 to December 2008, 117 obese patients were assigned by patient choice after informed consent to either a LRYGB procedure (n=75) or a LSG procedure (n=42). We determined operative time, length of stay, morbidity, comorbidity outcomes, failures, and excess weight loss at 5 years.
  
  
  RESULTS
  Both groups were comparable in demographic characteristics and comorbidities at baseline. No significant statistical differences were found in length of stay and early major morbidity, but mean operative time was shorter in LSG group, p<0.05. Follow-up was achieved in 74 patients (63.2 %) at 5 years, and major complications (early and late) were 10 (21.2 %) for the LRYGB group and 3 (11.1 %) for the LSG group, p>0.05. Five years after surgery, the percentage of excess weight loss was similar in both groups (69.8 % for LRYGB and 67.3 % for LSG, p>0.05). Failures were more common for LSG group, 22.2 versus 12.7 % for LRYGB group, but this difference was not significant, p>0.05.
  
  
  CONCLUSIONS
  Both techniques are comparable regarding safety and effectiveness after 5 years of follow-up, so not one procedure is clearly superior to the other.
authors.affiliation: Department of Surgery, Faculty of Medicine Hospital Universitario de Caracas, Universidad Central de Venezuela, Caracas, Venezuela, jlleyba@yahoo.es.
authors.forename: Jose Luis
authors.initials: JL
authors.lastname: Leyba
authors.forename: Salvador Navarrete
authors.initials: SN
authors.lastname: Llopis
authors.forename: Salvador Navarrete
authors.initials: SN
authors.lastname: Aulestia
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D015390:Gastric Bypass / Q000379:methods*; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000601:surgery*; D011183:Postoperative Complications; D011446:Prospective Studies; D016896:Treatment Outcome; D015431:Weight Loss