Percutaneous placement of stents in chronic iliac and aortic occlusive disease.
OBJECTIVE
to evaluate the long-term results of stenting in iliac and aortic occlusive disease and identify factors predicting clinical outcome.


METHODS
retrospective study.


METHODS
82 patients (87 limbs) with stenoses (n =63) and occlusions (n =24) in the aortoiliac segment were treated with stents. 81 lesions involved the iliac arteries, 3 the infrarenal aorta and 3 the aortic bifurcation. Primary stenting was performed in 57 limbs (complex stenotic lesions and occlusions). Stents were placed following failed PTA in 30 limbs. Median follow-up was 13.2 months (1-66 months).


RESULTS
technical success was 99% and clinical success 89%. Cumulative primary and secondary patency of stented iliac atherosclerotic lesions at 1 and 3 years was 75 and 61%, and 83 and 75% respectively. The factors predicting outcome of primary patency identified in Cox multivariate analysis were ankle-brachial index (ABI) prior stenting (p =0.03) and length of the lesion (p =0. 007). Major non-fatal complications occurred in 7.4% of the patients and there were no deaths attributed to the treatment. The 30-day mortality was 3.7%.


CONCLUSIONS
stenting of complex aortoiliac stenoses and chronic occlusions is a safe and effective treatment modality. Long lesions and lower pre-procedure ABIs were found to negatively influence outcome.
Uher
P
P
Department of Radiology, Malmö University Hospital, Malmö, S-205 02, Sweden.
Nyman
U
U
Forssell
C
C
Lindh
M
M
Lindblad
B
B
Ivancev
K
K
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001012:Aorta, Abdominal; D001157:Arterial Occlusive Diseases / Q000209:etiology / Q000628:therapy*; D005260:Female; D006801:Humans; D007083:Iliac Artery; D008297:Male; D008875:Middle Aged; D016016:Proportional Hazards Models; D012008:Recurrence; D012189:Retrospective Studies; D012307:Risk Factors; D018709:Statistics, Nonparametric; D015607:Stents / Q000009:adverse effects; D016019:Survival Analysis; D016896:Treatment Outcome; D014654:Vascular Patency