Endovascular treatment of iliac aneurysms with covered stents

The purpose of this retrospective, single-institution study was to analyze the results of endovascular treatment of iliac aneurysm using covered stent s. Since January 1, 1996, a total of 34 iliac aneurysms have been treated w ith covered endovascular stents. The series included 9 isolated aneurysms, 29 aneurysms following repair of aortic aneurysm, and 3 false anastomotic a neurysms. The mean diameter of aneurysm was 42 mm (range, 21 to 120 mm). Th e aneurysm was either symptomatic or complicated in 11 cases. Three procedu res were carried out under emergency conditions after acute rupture. Stent deployment was successful in 33 cases (technical success rate, 97.6%). Excl usion of the aneurysm was obtained in all cases with one (n = 26) or two ov erlapping (n = 7) covered stents. Mean procedure duration was 45 min (range , 25 to 75 min). The internal iliac artery was patent in 28 cases, but pate ncy was preserved in only 4 cases. In the remaining 24 cases the internal i liac artery was excluded either preoperatively by embolization using Giantu rco coils (n = 15) or intraoperatively by placement of the stent (n = 9). E ndovascular treatment of iliac aneurysm with covered stents achieves good s hort- and middle-term results but usually requires exclusion of the interna l iliac artery.