Soichiro Hase, Presenter: Nothing to Disclose

Yuya Koike, Abstract Co-Author: Nothing to Disclose

Motoshige Yamasaki, Abstract Co-Author: Nothing to Disclose

Hiroshi Iwamura, Abstract Co-Author: Nothing to Disclose

Junichi Nishimura MD, Abstract Co-Author: Nothing to Disclose

Naoki Washiyama, Abstract Co-Author: Nothing to Disclose

Mutsumu Fukata, Abstract Co-Author: Nothing to Disclose

Hiroshi Nishimaki MD, Abstract Co-Author: Nothing to Disclose

To evaluate the clinical results in endovascular aneurysmal repair (EVAR) of isolated common iliac artery aneurysms (CIAAs) retrospectively.

Between June 2009 and March 2014, 21 patients (17 males) underwent EVAR for isolated CIAAs. The age ranged from 52 to 90 years (mean, 69 years). Unilateral involvement of CIAA was seen in 15 patients, with bilateral involvement in the remaining 5 patients. Internal iliac artery involvement was seen in 5 patients. The maximum diameter of aneurysm ranged from 23 to 55 mm (mean, 35 mm). The bifurcated endograft in 11, the iliac limb of the aortic graft in 7, and the combination of aortic cuff and parallel-aligned iliac extender in 3 patients were used. The follow-up CT was performed at discharge, 3, 6, and 12 months and annually thereafter.

The mean follow-up period was 529 days (range, 30-1768). Technical success was achieved in all 21 patients (100%). No mortality and morbidity were observed during follow-up. Follow-up CT revealed no evidence of type I/III endoleaks and aneurysmal enlargement (>5mm). In 9 CIAAs (33%), shrinkage of aneurysmal sac was observed.

Endovascular repair for isolated common iliac aneurysm is feasible with a favorable mid-term result.

Because side branches from a common iliac artery are infrequent, it is easier for complete exclusion of common iliac artery aneurysms than of abdominal aortic aneurysm.

Hase, S, Koike, Y, Yamasaki, M, Iwamura, H, Nishimura, J, Washiyama, N, Fukata, M, Nishimaki, H, Endovascular Repair of an Isolated Common Iliac Aneurysm in 21 Patients.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14015915.html