title: Laparoscopic sleeve gastrectomy conversion to Roux-en-Y gastric bypass: experience in 50 patients after 1 to 3 years of follow-up.
abstract: BACKGROUND
  Sleeve gastrectomy (SG) is currently one of the most frequently performed bariatric interventions worldwide due to its simplicity and good weight loss results. Nevertheless, SG failure and complications are increasingly being observed as the number of procedures increases.
  
  
  OBJECTIVE
  To report our results in converting SG to revisional laparoscopic Roux-en-Y gastric bypass (R-LRYGB).
  
  
  METHODS
  University Hospital, Chile.
  
  
  METHODS
  Retrospective analysis of our bariatric surgery database. Patients who underwent R-LRYGB after SG between June 2005 and April 2015 were identified. Demographic characteristics, anthropometrics, preoperative workup, and perioperative data were retrieved. Total weight loss (TWL), excess weight loss (EWL), and clinical progression over 3 years were registered.
  
  
  RESULTS
  Fifty patients were identified, mean age 39±8.4 years, 42 (84%) women; median body mass index previous to R-LRYGB was 33.8 (31-36) kg/m2. Indications for revision were weight regain (n = 28, 56%), gastroesophageal reflux disease (n = 16, 32%), and gastric stenosis (n = 6, 12%). In weight-regain patients, mean follow-up at 3 years was 72.2% and median percentage of total weight loss at 12 and 36 months was 18.5 (12-24) and 19.3 (8-23), respectively; percentage of excess weight loss at 12 and 36 months was 60.7 (37-82) and 66.9 (26-90), respectively. Over 90% of gastroesophageal reflux disease patients resolved or improved symptoms. All patients with gastric stenosis resolved symptoms after conversion. There were no major complications.
  
  
  CONCLUSIONS
  R-LRYGB is a feasible, effective, and well-tolerated alternative in selected patients with failed SG in which other therapies have been insufficient to either maintain weight loss or resolve complications. However, long-term follow-up is still needed.
authors: Bariatric Surgery Unit, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
authors: Nicolás
authors: N
authors: Quezada
authors: Bariatric Surgery Unit, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
authors: Julián
authors: J
authors: Hernández
authors: Bariatric Surgery Unit, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
authors: Gustavo
authors: G
authors: Pérez
authors: Bariatric Surgery Unit, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
authors: Mauricio
authors: M
authors: Gabrielli
authors: Bariatric Surgery Unit, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
authors: Alejandro
authors: A
authors: Raddatz
authors: Bariatric Surgery Unit, Department of Digestive Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile. Electronic address: fcrovari@med.puc.cl.
authors: Fernando
authors: F
authors: Crovari
mesh_terms: D000328:Adult; D003251:Constriction, Pathologic / Q000209:etiology / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D005743:Gastrectomy / Q000009:adverse effects*; D015390:Gastric Bypass / Q000379:methods*; D005764:Gastroesophageal Reflux / Q000209:etiology / Q000601:surgery; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D007902:Length of Stay; D008297:Male; D009765:Obesity / Q000601:surgery; D061646:Operative Time; D011183:Postoperative Complications / Q000209:etiology; D011446:Prospective Studies; D012086:Reoperation / Q000379:methods; D012189:Retrospective Studies; D013272:Stomach Diseases / Q000209:etiology / Q000601:surgery; D015430:Weight Gain / Q000502:physiology; D015431:Weight Loss / Q000502:physiology
keywords: Bariatric surgery; Laparoscopic Roux-en-Y gastric bypass; Laparoscopic sleeve gastrectomy; Revisional surgery