Aortic sepsis: Is there a role for in situ graft reconstruction?

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Conventional extraanatomic reconstruction for aortic sepsis is associated with a significant risk of operative death, as well as frequent late complications. We evaluated in situ aortic grafting in the treatment of primary or graft-related aortic infection. Eleven selected patients underwent in situ aortic graft reconstruction in the setting of mycotic aneurysm (n = 5), secondarily infected aortic aneurysm (n = 1), primary aortoenteric fistula (n = 1), and secondary aortoenteric fistula (n = 4). All patients survived: follow-up from 10 to 130 months reveals no evidence for graft thrombosis, pseudoaneurysm, new or recurrent aortoenteric fistula, or subsequent aortic operations in any patient. A literature review produced 110 cases of aortic sepsis managed by in situ aortic reconstruction during the last decade. Thirty-two patients (29%) either died in the operative period or suffered a lethal late complication associated with their aortic reconstruction. This mortality rate declined to 21% if patients undergoing incomplete removal of a contaminated graft were excluded, and to 19% with the addition of our 11 patients. Both our experience and that described in the literature suggest that, in properly-selected patients, in situ aortic graft replacement may be a rational treatment option for localized or circumscribed aortic sepsis.