Confirmation of infection of an aortic graft.

The presentation of an aortic graft infection may be dramatic in the form of an aortoenteric fistula or drainage of pus from the wound. Some cases may be more subtle with presentations of fever of unknown origin. Prior to embarking upon major operative repair for these suspected lesions, it is essential to confirm the presence of infection. Under CT control, a fine needle may be inserted into the peri-graft space, and cultures may be obtained. Further confirmation may be achieved by an injection of a small amount of contrast material which will demonstrate lack of incorporation of the graft into surrounding tissues. Prior confirmation of graft infection permits a staged procedure to repair this technique is illustrated with a case history.