title: Long-term results after open and semiclosed thrombendarterectomy for aortoiliac occlusive disease.
abstract: OBJECTIVE
  This study reviews the long-term results of 514 aortoiliac thrombendarterectomies (TEA's).
  
  
  METHODS
  A prospective study in a major university hospital in Switzerland.
  
  
  METHODS
  353 male and 62 female patients with aortoiliac occlusive disease. Operative indications: disabling claudication (n=334), rest pain (n=44), and gangrene (n=37).
  
  
  METHODS
  Open and semiclosed TEA's were performed on 167 and 347 limbs, respectively. Follow-up was continuous and complete in 97.1 % of patients over a period of more than 15 years.
  
  
  RESULTS
  The overall life-table patency rate at 5, 10, and 15 years postoperatively were 93.4 %, 90.4 %, and 84.2 %, respectively. Fifteen years postoperatively, the patency rate of 92.3 % after open TEA was significantly higher (p<0.04) than after semiclosed TEA (79.5 %). However, similar patency rates of 69.5 % and 69.8 % were observed 20 years postoperatively. Further significant prognostic factors on patency were: anatomic localization (p<0.004), preoperative stage of arterial occlusive disease (p<0.008), and gender (p<0.007). Patient's age did not influence the outcome in terms of patency. Hospital mortality rate was 1.2 %. Early obstruction occurred in 2.2 %, leading to subsequent early amputation of 1.4 % and reoperations in 1.2 %. The long-term actuarial survival rates of the patients were 55 %, 36 %, and 18 % after 10, 15, and 20 years postoperatively.
  
  
  CONCLUSIONS
  Both open and semiclosed TEA give highly satisfactory long term results in aortoiliac occlusive disease with a low morbidity and low mortality.
authors.affiliation: Department of Surgery, Vascular Surgery Unit, University Hospital Basel, Switzerland.
authors.forename: D
authors.initials: D
authors.lastname: Oertli
authors.forename: P
authors.initials: P
authors.lastname: Wigger
authors.forename: J
authors.initials: J
authors.lastname: Landmann
authors.forename: P
authors.initials: P
authors.lastname: Waibel
mesh_terms: D001018:Aortic Diseases / Q000453:epidemiology / Q000601:surgery*; D001157:Arterial Occlusive Diseases / Q000453:epidemiology / Q000601:surgery*; D004691:Endarterectomy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007083:Iliac Artery; D007866:Leg / Q000098:blood supply; D015993:Life Tables; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013557:Switzerland / Q000453:epidemiology; D013997:Time Factors; D016896:Treatment Outcome; D014654:Vascular Patency