title: Endovascular aortic aneurysm repair with the talent stent-graft: outcomes in patients with large iliac arteries.
abstract: The purpose of this study is to report outcomes following endovascular aneurysm repair (EVAR) of abdominal aortic aneurysm (AAA) in patients with ectatic common iliac arteries (CIAs). Of 117 AAA patients treated by EVAR between 1998 and 2005, 87 (74%) had CIAs diameters <18 mm and 30 (26%) patients had one or more CIA diameters >18 but <25 mm. All patients were treated with Talent stent-grafts, 114 bifurcated and 3 AUI devices. Departmental databases and patient records were reviewed to assess outcomes. Technical success, iliac-related outcome, and iliac-related reintervention (IRSI) were analyzed. Patients with EVAR extending into the external iliac artery were excluded. Median (range) follow-up for the study group was 24 (1-84) months. Initial technical success was 98% for CIAs <18 mm and 100% for CIAs >/=18 mm (p = 0.551). There were three distal type I endoleaks (two in the ectatic group) and six iliac limb occlusions (one in an ectatic patient); there were no statistically significant differences between groups (p = 0.4). There were nine IRSIs (three stent-graft extensions, six femorofemoral crossover grafts); three of these patients had one or both CIAs >/=18 mm (p = 0.232). One-year freedom from IRSI was 92% +/- 3% and 84% +/- 9% for the <18-mm and >/=18-mm CIA groups, respectively (p = 0.232). We conclude that the treatment of AAA by EVAR in patients with CIAs 18-24 mm appears to be safe and effective, however, it may be associated with more frequent reinterventions.
authors.affiliation: Department of Medical Imaging & Radiotherapy, University of Liverpool, Johnston Building, Quadrangle, Brownlow Hill, Liverpool, L69 3GB, UK. a.england@liv.ac.uk
authors.forename: Andrew
authors.initials: A
authors.lastname: England
authors.forename: John S
authors.initials: JS
authors.lastname: Butterfield
authors.forename: Charles N
authors.initials: CN
authors.lastname: McCollum
authors.forename: Raymond J
authors.initials: RJ
authors.lastname: Ashleigh
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography / Q000379:methods; D017130:Angioplasty / Q000379:methods* / Q000401:mortality; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods* / Q000401:mortality; D015331:Cohort Studies; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D017052:Hospital Mortality / Q000639:trends; D006801:Humans; D007083:Iliac Artery / Q000000981:diagnostic imaging / Q000473:pathology*; D053208:Kaplan-Meier Estimate; D008297:Male; D011336:Probability; D015641:Radiography, Interventional / Q000379:methods*; D012189:Retrospective Studies; D018570:Risk Assessment; D012720:Severity of Illness Index; D015607:Stents; D016019:Survival Analysis; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome