Abstract

DYNAMIC LEFT VENTRICULAR outflow tract (LVOT) obstruction due to systolic anterior motion (SAM) of the mitral valve (MV) after MV repair is a well-known phenomenon.1 Clinically significant SAM can cause LVOT obstruction and hemodynamic instability regardless of the presence of mitral regurgitation (MR). Two-dimensional (2D) transesophageal echocardiographic (TEE) appearance of dynamic LVOT obstruction consists of SAM, turbulence on color-flow Doppler in the LVOT, and eccentric mitral regurgitation.

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