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ajmga36105-sm-0001-SuppMovie.wmv1202KMovie S1. M-mode echocardiogram. Left panel: echocardiogram prior to surgery with a severely dilated left atrium and dysmorphic mitral valve. Right panel: recent echocardiogram with a moderately dilated left atrium. Exact evaluation of the left atrial size is hampered by shadows of the mitral graft. Note the remarkable difference between left atrial size before and after mitral valve replacement.

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