title: Prospective randomised trial of distal arteriovenous fistula as an adjunct to femoro-infrapopliteal PTFE bypass.
abstract: OBJECTIVE
  To compare graft patency and limb salvage rate following femoro-infrapopliteal bypass using ePTFE grafts with and without the addition of adjuvant arterio-venous fistula.
  
  
  METHODS
  A prospectively randomised controlled trial.
  
  
  METHODS
  Patients referred to two teaching hospital vascular surgery units in the U.K. for the treatment of critical limb ischaemia.
  
  
  METHODS
  Eighty-seven patients (M:F; 2.3:1) undergoing 89 femoro-intrapopliteal bypass operations with ePTFE grafts for critical limb ischaemia were randomly allocated to have AVF included in the operative procedure (n = 48) or to a control group without AVF (n = 41). An interposition vein-cuff was incorporated at the distal anastomosis in all patients.
  
  
  RESULTS
  The cumulative rates of primary patency and limb salvage at 1-year after operation for patients with AVF were 55.2% and 54.1% compared to 53.4% and 43.2%, respectively, for the control group. The differences between the AVF and control groups did not reach statistical significance, in terms of either graft patency or limb salvage, at any stage after operation (Log-Rank test).
  
  
  CONCLUSIONS
  AVF confers no additional significant clinical advantage over interposition vein cuff in patients having femoro-infrapopliteal bypass with ePTFE grants for critical limb ischaemia.
authors: Royal Liverpool University Hospital, Chelsea, U.K.
authors: A
authors: A
authors: Hamsho
authors: D
authors: D
authors: Nott
authors: P L
authors: PL
authors: Harris
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001166:Arteriovenous Shunt, Surgical / Q000379:methods; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods; D016638:Critical Illness; D005260:Female; D005263:Femoral Artery / Q000601:surgery*; D005500:Follow-Up Studies; D006083:Graft Occlusion, Vascular / Q000453:epidemiology; D006801:Humans; D007511:Ischemia / Q000601:surgery; D007866:Leg / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D011150:Popliteal Artery / Q000601:surgery*; D011446:Prospective Studies; D013997:Time Factors
chemical_list: D011138:Polytetrafluoroethylene