Stent-graft applications in peripheral non-atherosclerotic arterial lesions.
OBJECTIVE
To retrospectively evaluate peripheral arterial lesions treated with stent-grafts in various territories and to identify the role of computed tomography angiography (CTA), both in diagnosis and follow-up.


METHODS
The study included 19 patients (11 male, 8 female) aged between 24 and 85 years. In all, 24 stent-grafts were used to seal an extravasation in 3 patients, a pseudoaneurysm/aneurysm in 12 patients, and an arteriovenous fistula in 4 patients. Self-expandable and balloon-expandable stent-grafts were used, all of which were covered with polytetrafluoroethylene material. Iatrogenic etiologies were responsible in 11 of the patients. In total, 5 superficial femoral, 2 deep femoral, 4 external iliac, 3 common iliac, 1 common carotid, 1 internal carotid, 1 subclavian, 1 renal artery, and 1 thyrocervical trunk lesion were treated.


RESULTS
The technical success rate was 100%, with no periprocedural complications. Mean follow-up was 18 months (range: 1-72 months). CTA was performed in 10 patients for diagnosis and in 7 patients for follow- up. There was no stent migration, but 1 stent crush. The total vessel occlusion rate was 16.6%, all diagnosed using CTA.


CONCLUSIONS
Stent-graft applications offer quick, single-step treatment, with few procedural complications. However, long-term durability remains a major concern. CTA is a very valuable tool, both for diagnosis and follow- up. Pseudoaneurysms and extravasations can be demonstrated successfully, as well as incomplete arteriovenous fistula closure, and patent or occluded stent-grafts.
Peynircioğlu
Bora
B
Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey. borapeynir@gmail.com
Ergun
Onur
O
Hazirolan
Tuncay
T
Serter
Tanzer
T
Uçar
Ibrahim
I
Cil
Barbaros
B
Cekirge
Saruhan
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography / Q000379:methods; D050197:Atherosclerosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation; D005260:Female; D006801:Humans; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D016491:Peripheral Vascular Diseases / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D012189:Retrospective Studies; D015607:Stents; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014421:Turkey