Infected Aneurysms of Neck and Limb Arteries: A Retrospective Multicenter Study
2001
Infected aneurysms (IA) of neck and limb arteries are uncommon. This report describes the results of a retrospective study undertaken by the University Association for Surgical Research (AURC) to evaluate etiology, bacteriology, location, diagnostic features, and therapeutic methods associated with IA. A total of 58 IA in 52 patients were reviewed. The lesion was located in a lower extremity artery in 47 patients (81%), internal carotid artery in 7 (12%), and upper extremity artery in 4 (6%). Eleven patients had multilocular aneurysm (21%). Symptoms of local infection were observed in 43 patients (82.6%). Rupture or splitting was the presenting manifestation in 13 patients (25%). Primary IA following bacteremia or septicemia without endocarditis was the most common type of IA observed in 34 patients (65.3%). Twelve patients (23%) presented mycotic IA secondary to bacterial endocarditis. In the remaining six patients (11.5%), IA resulted from direct contamination or spreading from a contiguous infection site. Surgical treatment included ligation of the artery without reconstruction in 19 patients and exclusion bypass in 33 patients. The duration of antibiotic treatment ranged from 15 days to 3 months. No recurrence of aneurysm was observed but three patients developed bypass infection. Primary IA was associated with high mortality due to severe septicemia.
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