title: Impact of visceral obesity on short-term outcome after laparoscopic surgery for colorectal cancer: a single Japanese center study.
abstract: OBJECTIVE
  This prospective study was conducted to clarify the association between the short-term outcome of laparoscopic colorectal surgery and visceral obesity (VO) based on waist circumference (WC).
  
  
  METHODS
  WC and body mass index (BMI) were preoperatively measured in 98 consecutive patients with colorectal cancer undergoing laparoscopic surgery between June 2004 and February 2006. VO was defined as both BMI >or=25 kg/m2 and WC >or=85 cm in male patients, or WC >or=90 cm in female patients.
  
  
  RESULTS
  The patients were divided into VO (n=21) and non-VO (n=77). Systemic complications were significantly more frequent in VO than in non-VO (19.0% vs. 3.9%, P=0.036), and VO was the only significant independent risk factor (odds ratio 8.1, P=0.018). BMI itself had no impact on outcome.
  
  
  CONCLUSIONS
  WC is a potentially useful index for the assessment of surgical risk in laparoscopic colorectal surgery.
authors.affiliation: Department of Surgery, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Nitori
authors.forename: Hirotoshi
authors.initials: H
authors.lastname: Hasegawa
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Ishii
authors.forename: Takashi
authors.initials: T
authors.lastname: Endo
authors.forename: Yuko
authors.initials: Y
authors.lastname: Kitagawa
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D015179:Colorectal Neoplasms / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D050152:Intra-Abdominal Fat; D010535:Laparoscopy / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D011183:Postoperative Complications / Q000209:etiology; D011446:Prospective Studies; D016896:Treatment Outcome; D055105:Waist Circumference