title: Comparison of percentage excess weight loss after laparoscopic sleeve gastrectomy and laparoscopic adjustable gastric banding.
abstract: BACKGROUND
  Laparoscopic sleeve gastrectomy (LSG) and laparoscopic adjustable gastric banding (LAGB) are acceptable options for primary bariatric procedures in patients with body mass index (BMI) 35-55 kg/m(2).
  
  
  OBJECTIVE
  The aim of this study is to compare the effects of these two bariatric procedures 6, 12 and 24 months after surgery.
  
  
  METHODS
  Two hundred and two patients were included 72 LSG and 130 LAGB patients. The average age was 38.8 ±11.9 and 39.4 ±10.4 years in LSG and LAGB groups, with initial BMI of 44.1 kg/m(2) and 45.2 kg/m(2), p = NS.
  
  
  RESULTS
  The mean percentage of excess weight loss (%EWL) at 6 months for LSG vs. LAGB was 36.3% vs. 30.1% (p = 0.01) and at 12 months was 43.8% vs. 34.6% (p = 0.005). The greatest difference in the mean %EWL at 12 months was observed in patients with initial BMI of 40-49.9 kg/m(2) in favor of LSG (47.5% vs. 35.6%; p = 0.01). Two years after surgery there was no advantage of LSG and in the subgroup of patients with BMI 50-55 kg/m(2) there was a trend in favor of LAGB (57.2% vs. 30%; p = 0.07). The multiple regression model of independent variables (age, gender, initial BMI and the presence of comorbidities) proved insignificant in prediction of the best outcome in means of %EWL for either operative modality. None of these factors in the logistic regression model could determine the type of surgery that should be used in particular patients.
  
  
  CONCLUSIONS
  During the first 2 years after surgery, the best results were obtained in women with lower BMI undergoing LSG surgery. The LSG provides greater %EWL after a shorter period of time though the difference decreases in time.
authors.affiliation: General and Vascular Surgery Department, Ceynowa Hospital, Wejherowo, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Lehmann
authors.affiliation: Department of Oncological Surgery, Medical University of Gdansk, Gdansk, Poland.
authors.forename: Maciej
authors.initials: M
authors.lastname: Bobowicz
authors.affiliation: Department of General and Minimally Invasive Surgery, University of Warmia and Mazury, Olsztyn, Poland.
authors.forename: Paweł
authors.initials: P
authors.lastname: Lech
authors.affiliation: General and Vascular Surgery Department, Ceynowa Hospital, Wejherowo, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Orłowski
authors.affiliation: General and Vascular Surgery Department, Ceynowa Hospital, Wejherowo, Poland.
authors.forename: Wiaczesław
authors.initials: W
authors.lastname: Siczewski
authors.affiliation: General and Vascular Surgery Department, Ceynowa Hospital, Wejherowo, Poland.
authors.forename: Maciej
authors.initials: M
authors.lastname: Pawlak
authors.affiliation: Faculty of Medical Informatics and Biostatistics, Medical University of Gdansk, Gdansk, Poland.
authors.forename: Dariusz
authors.initials: D
authors.lastname: Swietlik
authors.affiliation: General and Vascular Surgery Department, Ceynowa Hospital, Wejherowo, Poland.
authors.forename: Mieczysław
authors.initials: M
authors.lastname: Witzling
authors.affiliation: General and Vascular Surgery Department, Ceynowa Hospital, Wejherowo, Poland ; Department of General and Minimally Invasive Surgery, University of Warmia and Mazury, Olsztyn, Poland.
authors.forename: Maciej
authors.initials: M
authors.lastname: Michalik
keywords: comparison; excess weight loss; laparoscopic adjustable gastric banding; laparoscopic sleeve gastrectomy; obesity; treatment outcomes