Aortic and peripheral prosthetic graft infection: differential management and causes of mortality

Abstract

This report of 25 patients with prosthetic graft infection has compared the diagnosis, management, and outcome in 14 patients with infected aortic grafts with 11 patients with infected peripheral grafts (two axillofemorofemoral, five femorofemoral, five femoropopliteal, and one femoral interposition). Peripheral graft infection had a significantly shorter interval to diagnosis compared with aortic graft infection. Total graft removal combined with either autogenous revascularization or extraanatomic bypass using prosthetic graft was performed in all 14 patients with infected aortic grafts. Management of peripheral graft infection consisted of total graft removal in eight patients (four with autogenous revascularization and two with amputation) and partial graft removal in three patients (two with amputation). Mortality and amputation rates for infected aortic grafts were 43 percent and 25 percent, respectively compared with 36 percent and 27 percent for infected peripheral grafts. Recommendations for management of the infected aortic prosthetic graft include total graft removal, but methods and timing of revascularization are dependent on the specific features of the individual case. However, preferred management for the infected peripheral prosthetic graft includes total graft removal and, if indicated, revascularization using autogenous tissue.