title: Practice patterns for deep vein thrombosis prophylaxis in minimal-access surgery.
abstract: BACKGROUND
  There are no comprehensive evidence-based guidelines for deep vein thrombosis (DVT) prophylaxis in patients undergoing minimal-access surgery (MAS).
  
  
  METHODS
  We completed a cross-sectional survey of general surgeons practising in Ontario, in order to establish current practice patterns for DVT prophylaxis for MAS procedures.
  
  
  RESULTS
  The mean duration of practice of respondents was 15.4 years, with most (67.0%) practising outside an academic centre. For minor MAS, most surgeons do not give DVT prophylaxis (73.8% in laparoscopic cholecystectomy and 63.7% in laparoscopic inguinal hernia repair). For major MAS, a minority of surgeons do not give DVT prophylaxis (4.1% in laparoscopic colorectal surgery and 13.6% in laparoscopic splenectomy). However, there remains considerable variation in the mechanism (pharmacological, mechanical), approach and duration (perioperative, postoperative) of DVT prophylaxis among respondents in all case scenarios evaluated. Academic surgeons and surgeons in practice for 15 years or less are more aggressive with preoperative heparin administration.
  
  
  CONCLUSIONS
  There is substantial and important variability in the current practice of general surgeons with respect to DVT prophylaxis for MAS. Considerable benefit will be derived from clinical trials that provide data to establish appropriate DVT prophylaxis guidelines for MAS.
authors.affiliation: Department of Surgery, Hamilton Health Sciences, McMaster University, Hamilton, Ont.
authors.forename: Richard
authors.initials: R
authors.lastname: Beekman
authors.forename: Mark
authors.initials: M
authors.lastname: Crowther
authors.forename: Forough
authors.initials: F
authors.lastname: Farrokhyar
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Birch
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007431:Intraoperative Complications; D010535:Laparoscopy / Q000009:adverse effects*; D009864:Ontario / Q000453:epidemiology; D010818:Practice Patterns, Physicians'; D011795:Surveys and Questionnaires; D020246:Venous Thrombosis / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*