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(Chest. 1973;63:624-626.)
© 1973 American College of Chest Physicians

Malfunction of a Disc Mitral Valve Prosthesis: Detection by Phonocardiography

Maria H. Balkoura-Christopoulos M.D.1; Leon Resnekov M.D.1; and C. Frederick Kittle M.D.1

1 Departments fo Medicine and Surgery, University of Chicago, Pritzker School of Medicine, Chicago

Obstruction of a disc mitral valve prosthesis (Beall valve, medium size) was detected clinically and confirmed by phonocardiography two months following its insetion. A very short interval from aortic closure to the opening sound of the prosthetic valve (0.05 sec) suggested a high transmitral gradient which was confirmed at cardisc catheterization. The patient died suddenly awaiting surgery and a large thrombus which obstructed more than 45 percent of the valve orifice was found at autopsy.






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Copyright © 1973 by the American College of Chest Physicians.