A Case of Recurrent Aortic Rupture Associated with Klebsiella pneumoniae Pericarditis Treated by Two Separate Aortic Operations

A case of cardiac tamponade due to an isolated abscess in the ascending aorta of a pregnant woman with a history of intravenous substance abuse

We describe the case of a 23-year-old white female, 10-12 weeks pregnant, with a history of intravenous drug use and a recently diagnosed pneumonia, who was found deceased in her bed after a night of sleep. Although postmortem serum toxicology tested positive for alprazolam, tetrahydrocannabinol, and morphine, the ultimate cause of death was determined to be cardiac tamponade secondary to an isolated abscess in the ascending aorta. The patient had several risk factors for aortic rupture and cardiac tamponade including intravenous drug use, pneumonia, and pregnancy. However, an autopsy of the patient showed an isolated abscess of the ascending aorta without evidence of infective endocarditis, coronary artery rupture, aortic aneurysm, or aortic dissection making this an unusual case of cardiac tamponade. The aim of this case report is to encourage providers to obtain a tissue culture of any aortic abscesses so that the organisms involved can be identified. The identification of such organisms may help guide antimicrobial treatment in similar presentations in the future.