Journal
EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY
Volume 40, Issue 5, Pages 582-588Publisher
W B SAUNDERS CO LTD
DOI: 10.1016/j.ejvs.2010.07.020
Keywords
Bacteriology; Infection; Infected aneurysm; Aorta
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Objectives: To assess causative pathogens and surgical outcomes in patients with primary infected aorto-iliac aneurysms at our institution. Design: Retrospective study of patients treated at a university hospital between 1992 and 2009. Results: We identified 26 patients (median age, 63 years) with primary infected aneurysms on the aorta (descending thoracic, n = 2; thoraco-abdominal, n = 3; suprarenal, n = 2; infrarenal, n = 15) or iliac arteries (n = 4). Among them, 22 were symptomatic, including 13 with ruptured aneurysms. The causative organisms, identified in 25/26 patients, were Campylobacter fetus, n = 6; Streptococcus pneumoniae, n = 4; Listeria, n = 3; Salmonella, n = 2; Mycobacterium tuberculosis, n = 2; Staphylococcus aureus, n = 1; and other, n = 7. Immune suppression was a feature in 10 (38.4%) patients. Revascularisation was performed in situ in 23 patients (10 allografts, eight grafts, three superficial femoral veins, and 2 stentgrafts) and by extra-anatomic bypass in three patients. Hospital mortality was 23% (in situ group, 17.4%; extra-anatomic group, 66.7%; chi(2) (Yates), P = 0.24). During follow-up in the 20 survivors (median, 48.5 months), there were two non-infection-related deaths (five and 24 months) and six (30%) vascular complications. Conclusions: The bacteriological spectrum of primary infected aorta-iliac aneurysms was wider than previously reported. The availability of new diagnostic tests and increased prevalence of immunosuppression may explain this finding. (C) 2010 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.
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