Management of solitary iliac aneurysms

Eleven patients with isolated iliac artery aneurysms, presenting over a 10 year period, have been reviewed. Ten patients underwent surgery, of whom 3 had ruptured their aneurysms. Four patients had a solitary aneurysm, while the remaining 6 had 14 aneurysms between them. There was no operative mortality but 2 patients died of late vascular complications (after 4 and 12 months), 1 after proximal ligation only of an internal iliac artery aneurysm, and 1 after proximal and distal ligation and bypass of the common/external iliac artery for an aneurysm involving both the common and internal iliac arteries. Five patients had internal iliac artery aneurysms, and in 4 of these distal control was not achieved. Four patients died from unrelated disease (after 2-6 years). Safe control of internal iliac artery aneurysms cannot be achieved without distal internal iliac control.