Diagnosis of spontaneous arteriovenous fistula complicating aortoiliac aneurysm using spiral CT. Report of 3 cases
2004
Abstract
Acute spontaneous arterio-venous fistula complicating atherosclerotic abdominal aortic aneurysm (AAA) is rare. This life-threatening setting is observed in 1?2% of all AAAs and 2?4% of ruptured of AAAs.
The triad of abdominal or lower back pain, pulsatile abdominal mass, and continual abdominal machinery-like bruit is seen only in half of cases. Currently, CT angiography is a noninvasive technique which enables a rapid and exact preoperative diagnosis.
The authors describe three cases of aortoiliac aneurysm complicated by an acute arteriovenous fistula which were diagnosed using spiral CT.