PMC4532101_01
M-mode tracing of the mitral valve revealed mitral valve premature closure (large arrow head). The P-Q interval was 0.18 second. The prolapsing cusp of the aortic valve was also observed (small arrow head).
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M-mode echocardiography showed premeature mitral valve closure (Fig. 1), and the left ventricular end diastolic dimension was 6.4 cm and the end systolic dimension was 4.4 cm.
Two-dimensional color Doppler echocardiography revealed left ventricular enlargement and mitral regurgitation running just behind the posterior mitral leaflet and reaching the posterior atrial wall (arrow).
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In late diastole, mitral regurgitation which ran just behind the posterior mitral leaflet and extended to the posterior wall of the left atrium was detected (Fig. 2-A). The diastolic mitral regurgitation began with the atrial systole and disappeared with the ventricular systole (Fig. 2-B).