Five patients with infected abdominal aortoiliac aneurysms were treated. The diagnosis was made preoperatively based upon fever, leukocytosis, positive blood culture findings, and presence of an aneurysm in all five patients. Two patients had salmonella species, two had staphylococcus species, and one had bacteroides species cultured from the blood and aneurysm contents. All patients were treated with appropriate antibiotics and a single operative procedure consisting of preliminary extraanatomic bypass followed by complete aneurysm excision and posterior drainage of the retroperitoneum. There were no operative deaths and no instances of aortic stump disruption, persistent retroperitoneal sepsis, or graft thrombosis. All patients were alive and well on last follow-up 15 months to 5 years postoperatively.
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