Percutaneous reconstruction of the aortoiliac bifurcation with the "kissing stents" technique: long-term follow-up in 106 patients

Abstract

Purpose: To evaluate the long-term results using the kissing stents technique for treatment of occlusive disease involving the aortoiliac bifurcation.

Methods: One hundred six patients (97 men; mean age 52.5 +/- 10.2 years, range 33-78) were treated with the kissing stents technique for bilateral aortoiliac stenosis (55, 51.9%), unilateral occlusion of the common iliac artery (CIA) with contralateral stenosis (47, 44.3%), and bilateral CIA occlusion (4, 3.8%). Clinical examination and duplex scans were performed prior to discharge and at 1, 6, and 12 months, followed by yearly examinations thereafter.

Results: Bilateral stent implantation was successful in all patients. No major procedure-related complications were observed. Self-expanding stents were deployed in 62 (58.5%) patients and balloon-expandable devices in 44 (41.5%). Fifteen (7.1%) hematomas were observed at the 212 access sites. Mean follow-up was 30.1 +/- 11.1 months (range 12-137). Duplex imaging diagnosed significant (>50%) restenosis in 15 (14.8%) of 101 patients and reocclusion in 4 (4%); 17 (89.5%) of these patients had recurrent symptoms and all were retreated (endovascular procedure in 18 and an aortobifemoral bypass in 1). Primary and secondary cumulative patency rates at 36 months were 79.4% and 97.7%, respectively. Balloon-expandable stents had a nonsignificantly higher patency rate compared to self-expanding stents.

Conclusions: Based on our experience, aortoiliac endovascular reconstruction with the kissing stents technique is a safe and effective procedure, representing an alternative to conventional surgery in selected patients.