title: Duodenal switch--the initial experience in New Zealand.
abstract: OBJECTIVE
  The duodenal switch (DS) has now established itself as an effective, durable and safe bariatric procedure. We present our initial experience on 60 patients from May 2008 to November 2012.
  
  
  METHODS
  Retrospective case series from a prospective database. 94.8% follow-up over 4 years.
  
  
  RESULTS
  45 patients have completed 1-year follow-up and 28 patients completed 2-year follow-up. The mean initial body mass index (BMI) was 52.8 kg/m(2) (range 40=66 kg/m(2)). The excess weight loss has been 69.5% at 1 year (n=45) and 73.1% at 2 years (n=28) respectively. The mean hospital stay is 5.08 days (range 3-18). The range of bowel motions at 1 year is one to two movements per day. Comorbidity resolution rates were 95% (n=18) for diabetes, 100% (n=9) for obstructive sleep apnoea, 72% (18/25) or hypertension, and 92% (33/36) or dyslipidaemia. One death from liver failure occurred 9 months following surgery resulting from poor compliance with follow-up and intake of multivitamins.
  
  
  CONCLUSIONS
  In our short-term analysis DS appears to be very efficient in terms of cure rate for morbid obesity and its comorbidities. In terms of risk/benefit DS has appeared safe with adherence to the appropriate follow-up regimen.
authors.affiliation: Department of Surgery, North Shore Hospital, Shakespeare Road, Takapuna, Auckland 0622, New Zealand. mlhumphreys75@gmail.com.
authors.forename: Martyn L
authors.initials: ML
authors.lastname: Humphreys
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Robinson
authors.forename: Caryne
authors.initials: C
authors.lastname: McKeand
authors.forename: Hisham
authors.initials: H
authors.lastname: Hammodat
mesh_terms: D000328:Adult; D000714:Anastomosis, Surgical / Q000379:methods; D050110:Bariatric Surgery / Q000379:methods*; D015992:Body Mass Index; D004386:Duodenum / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D010535:Laparoscopy / Q000379:methods*; D007902:Length of Stay / Q000639:trends; D008297:Male; D008875:Middle Aged; D009520:New Zealand; D009767:Obesity, Morbid / Q000453:epidemiology / Q000601:surgery*; D010349:Patient Compliance; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult