Leonard W. Pechacek, Luis Solana, Carlos M. Decastro
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Echocardiographic assessment of the Ionescu-Shiley pericardial xenograft in the aortic position.
Echocardiograms of 30 patients with a normally functioning Ionescu-Shiley pericardial xenograft valve in the aortic position were analyzed to delineate the ultrasonic patterns produced by this bioprosthesis. The pericardial leaflets were recorded as thin, discrete echoes that were similar in configuration to the native aortic valve. Maximum systolic excursion of the anterior and posterior leaflets was 19 +/- 0.22 mm (standard deviation.) The presence of multiple echoes produced by the titanium frame was the major technical limitation to echocardiographic imaging of valve motion.
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