Eleven Years of Experience in the Treatment of Aortoiliac Aneurysm with the E-Liac Stent-Graft System.

Background: This study examines the use of the E-liac stent-graft system for the endovascular treatment of aortoiliac or isolated common iliac aneurysms. Methods: Consecutive patients between January 2014 and December 2024 were included. Data on patient characteristics, clinical presentation, lesion features, procedural aspects, and follow-up outcomes were collected and examined. Complications during the perioperative period and subsequent reinterventions were also documented. Results: A total of 81 patients met the inclusion criteria (65 men, 80.2%, median age 71.2 ± 11.43 (range 61-86 years). Technical success was achieved in all cases. A total of 97 internal iliac arteries were revascularized; in 54 cases (66.7%), the endovascular technique was EVAR + unilateral iliac branch device (IBD), in 16 cases (19.8%), it was EVAR + bilateral IBDs, and unilateral isolated IBD was conducted in 11 (13.6%) patients. The median patient follow-up time was 64.7 months (range 1-120). During follow-up, the mortality rate was 22.2%, with an iliac branch patency of 90.1%. Buttock claudication was observed in five (6.2%) patients and nerve ischemia in one (1.2%). One type I endoleak (1.2%) occurred following endovascular treatment of an isolated common iliac artery aneurysm, and three type II endoleaks (3.7%) were observed; none of them were associated with aneurysm sac enlargement. Three type III endoleaks (3.7%) occurred due to disconnection of the iliac branch from the extension of the concomitant EVAR. Conclusions: This long-term study, with 11 years of follow-up, reports outcomes with the E-liac stent-graft for the treatment of aorto-iliac or iliac aneurysms and demonstrates that it can be safely applied with low mortality and reintervention rates, and high patency rates.