Abstract
Pseudoaneurysms of the mitral-aortic intervalvular fibrosa are a well-described
complication of aortic valve prosthetic endocarditis. Pseudoaneurysms
in this location may be complicated by formation of fistulous tracts with adjacent
structures. Herein we describe a case in which fistulous flow into the left atrium
produced an eccentric jet on color flow Doppler imaging which masqueraded as
severe mitral regurgitation.
Key words: prosthetic valve endocarditis; pseudoaneurysm; fistula; mitral
regurgitation; mitral-aortic intervalvular fibrosa