Primary Endovascular Elective Repair and Repair of Ruptured Isolated Iliac Artery Aneurysms Is Durable-Results of 72 Consecutive Patients

Purpose: To evaluate outcome of endovascular elective repair and repair of ruptured isolated iliac artery aneurysms (IIAAs) as a primary treatment strategy. Materials and Methods: All patients with an IIAA undergoing endovascular treatment were included. Aneurysms were classified according to an anatomic classification and treated with coiling of the internal iliac artery, stent graft placement in the common to external iliac artery, or placement of a bifurcated aortoiliac stent graft. Between November 1996 and November 2015, 72 patients with 85 IIAAs underwent endovascular repair. Mean age was 73.9 years +/- 9.2. Common iliac artery was involved in 63 patients (74.1%), internal iliac artery was involved in 21 patients (24.7%), and external iliac artery was involved in 1 patient (1.2%). Mean diameter was 5 cm (range, 2.5-11 cm). Emergency repair was performed in 19 patients owing to rupture (26.4%). Results: Overall primary technical success rate was 95,8% with conversion rate to open surgery of 4.2% (all in the emergency group) and in-hospital mortality rate of 1.4%. During mean follow-up of 4.3 years +/- 3.3 (median 3.8 y; range, 0-14.2 y), 17 endoleaks were observed (6 type I, 10 type II, 1 type IlIa). Overall reintervention rate was 16.7%. Primary patency rate was 98.6%. During the follow-up period, 22 deaths occurred (30.6%), including 2 aneurysm-related deaths (2.8%). Conclusions: Primary endovascular repair of IIAAs shows excellent results and should be considered as first-line therapy. Surgical backup should be available in emergency cases.