Abstract
Objective: To assess the outcomes of endovascular treatment for isolated iliac artery aneurysms by using Excluder leg. Methods: Between October 2009 and April 2004, 24 patients with isolated iliac artery aneurysms underwent endovascular treatment by using Gore Excluder contralateral leg or iliac extension at our institute. The medical records of these patients including baseline characteristics, procedure and follow-up data were retrospectively reviewed. Results: Solitary iliac aneurysms included 13 of common iliac artery aneurysm (CIAA) and 11 of internal iliac artery aneurysm (IIAA). Nine cases (5 of CIAA and 4 of IIAA) who had previous bifurcated graft replacement for AAA were also included. Mean diameter of CIAA at treatment was 38 mm, and that of IIAA was 47 mm. The operative procedure of CIAA was stentgraft placement from CIA to EIA with/without embolization of IIA and that of IIAA was stentgraft placement as well with embolization of the branches of IIAA. The technical success rate was 100%, and there were no major post-operative complications. The mean follow up period of CIAA was 25.3 months, and that of IIAA was 19.9 months. No graft occlusions have been seen during the period. All the patients except for one of IIAA showed aneurysm shrinkage. Only one patient of IIAA showed aneurysm sac expansion and needed secondary treatment. The cause of expansion was type 2 endoleak from branches of IIAA, and this was due to inadequate embolization at the first treatment. Conclusion: The outcomes of endovascular treatment for isolated iliac artery aneurysms by using Excluder leg was thought to be less invasive procedure and it showed good mid-term results.
