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An Acquired Interatrial Fistula Secondary to Para-aortic Abscess Documented by Transesophageal Echocardiography
Journal article

An Acquired Interatrial Fistula Secondary to Para-aortic Abscess Documented by Transesophageal Echocardiography

Robert C. Sheppard, Krishnaswamy Chandrasekaran, John Ross, Gary S. Mintz and Julia C Ross
Journal of the American Society of Echocardiography, v 4(3), pp 271-276
May 1991
PMID: 1854498

Abstract

Para-aortic ring abscess and resulting fistulous communication between adjacent structures frequently occur in prosthetic aortic valve endocarditis but are rarely diagnosed preoperatively. We report a patient who had an abscess involving the aortic-mitral intervalvular fibrosa that eroded into the interatrial septum, causing an interatrial communication with a left-to-right shunt. The abscess was detected by transthoracic echocardiography, but the fistula was only seen by the subsequent transesophageal echocardiogram. To our knowledge, this is the first report of an interatrial fistula secondary to a para-aortic valve abscess and its diagnosis preoperatively. Transesophageal echocardiography should be performed in any patient suspected to have complicated aortic endocarditis.

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