Mycotic Aortic Aneurysm: Review of the Literature and Report of Two Cases

Abstract

A mycotic aortic aneurysm (MAA), synonymously known as infected aortic aneurysm, is an aortic aneurysm due to infection. Mycotic aortic aneurysm most commonly develops through microbial inoculation of the diseased aortic endothelium during bacteremia. In this study we presented 2 Mycotic aortic aneurysm cases. In the first case the patient is a 50-year-old farmer who presented with a complaint of abdominal pain. The patient was consulted with the vascular surgery service for the diagnosis of ruptured abdominal aneurysm. The patient was prepared for surgery of a ruptured abdominal aortic aneurysm. After surgery, the patient's blood culture was reported negative after 72 hours, but the patient's aneurysm sac tissue culture reported Citrobacter freundii. The patient's antibiotic treatment regimen was changed according to the performed antibiogram. In another case A 65 year’s old male who was admitted in neurology ward was consulted with us, because of a pulsatile abdominal mass. The patient had Alzheimer disease and Brucellosis and didn’t receive a complete duration treatment for his Brucellosis. On surgery, we bypassed the defect and covered the graft with peritoneum. In first case the patient's blood culture was reported negative after 72 hours, but the patient's aneurysm sac tissue culture reported Citrobacter freundii. The patient's antibiotic treatment regimen was changed according to the performed antibiogram. In second case he was discharged without any surgical complication and on follow –up visit (7 months later) he didn’t have any complaint.

Keywords

• aorta
• mycotic
• aneurysm
• mycotic aneurysm
• aortic aneurysm