title: Obesity surgery: discouraging long term results with Mason's vertical banded gastroplasty.
abstract: OBJECTIVE
  To evaluate the long term results of Mason's vertical banded gastroplasty (VBG) using accepted criteria, and to find out which factors predicted success.
  
  
  METHODS
  Retrospective survey of a cohort of 40 severely obese patients (mean initial body mass index (BMI in kg/m2): 43, range 34-62).
  
  
  METHODS
  General teaching hospital, The Netherlands.
  
  
  METHODS
  Success according to three definitions: weight loss of more than 25%; percentage of excess weight 50% or less; and BMI < 30.
  
  
  RESULTS
  Mean follow-up was 7.4 years (range 0.5-10) or 85%. The distribution over MacLean and Reinhold criteria shows a shift towards unfavourable categories. The consecutive percentages of success at five years were 35%, 62%, and 35%. Logistic regression analysis of success at 5 years shows that the following factors significantly predicted success: Definition I: age odds ratio (95% confidence interval): 0.88 (0.78 to 0.99). Definition II: age: 0.84 (0.69-1.01), outlet > or = 5 cm: 176 (2.4 to 12774), percentage of ideal weight > or = 100%: 0.03 (0.002 to 0.48). Definition III: age: 0.86 (0.75 to 0.99), pouch size > or = 15 ml: 10.64 (1.48 to 76.6).
  
  
  CONCLUSIONS
  The long term results of VBG are disappointing when assessed by the standard criteria.
authors.affiliation: Department of General Surgery, Red Cross Hospital, Beverwijk, The Netherlands.
authors.forename: P C
authors.initials: PC
authors.lastname: Versélewel de Witt Hamer
authors.forename: M A
authors.initials: MA
authors.lastname: Hunfeld
authors.forename: W E
authors.initials: WE
authors.lastname: Tuinebreijer
mesh_terms: D000328:Adult; D015992:Body Mass Index; D001835:Body Weight; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D015391:Gastroplasty / Q000379:methods / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D015431:Weight Loss