title: Lessons learned in adopting endovascular techniques for treating abdominal aortic aneurysm.
abstract: OBJECTIVE
  Endovascular exclusion of abdominal aortic and common iliac aneurysms can be performed safely, and in the short term represents a feasible alternative to traditional, open aneurysm repair.
  
  
  METHODS
  Forty-one patients were treated with endovascular grafts for 39 abdominal aortic and 2 common iliac artery aneurysms.
  
  
  RESULTS
  All devices were successfully deployed. The size of the abdominal aortic aneurysms varied from 4.9 to 11.9 cm (average, 6.13 cm). The median procedure time was 195 minutes. There was one iliac artery rupture, which required celiotomy for repair. The hospital stay varied from 2 to 39 days (average, 6.7 days). The perioperative mortality rate was 2.4%. Sixteen patients (39%) had groin wound complications. Ten patients (24%) had evidence of contrast (endoleak) within the aneurysm sac on completion of the procedure. There were no obvious direct leaks from either the point of proximal or distal fixation. Seven of these endoleaks have resolved spontaneously. Two patients required additional procedures in the postoperative period to treat endoleak. The final patient has evidence of persistent endoleak on 3-month surveillance computed tomography scan. Major late problems occurred in 3 patients.
  
  
  CONCLUSIONS
  Patients with large abdominal aortic aneurysms and considerable cardiac comorbidity can safely undergo endovascular aneurysm repair. Femoral groin wound complications resulting in prolonged hospitalization remain the major cause of perioperative morbidity. In contradistinction to open aneurysm repair, long-term surveillance is essential to detect migration of the device and identify flow within the residual aneurysm sac-complications that could lead to aneurysm rupture following endovascular repair.
authors.affiliation: Medical College of Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226, USA.
authors.forename: M A
authors.initials: MA
authors.lastname: Patterson
authors.forename: J M
authors.initials: JM
authors.lastname: Jean-Claude
authors.forename: M R
authors.initials: MR
authors.lastname: Crain
authors.forename: G R
authors.initials: GR
authors.lastname: Seabrook
authors.forename: R A
authors.initials: RA
authors.lastname: Cambria
authors.forename: W S
authors.initials: WS
authors.lastname: Rilling
authors.forename: J B
authors.initials: JB
authors.lastname: Towne
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017130:Angioplasty / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods* / Q000401:mortality; D017544:Aortic Aneurysm, Abdominal / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods* / Q000401:mortality; D015897:Comorbidity; D003327:Coronary Disease / Q000150:complications; D004867:Equipment Design; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications; D017543:Iliac Aneurysm / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012189:Retrospective Studies; D015607:Stents; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome