Abstract
The purpose of this study was to assess the clinical significance of spatial and temporal analysis of left ventricular (LV) filling-flow propagation using color M-mode Doppler echocardiography before and after regression of LV hypertrophy in patients with hypertension. Seven patients with hypertensive LV hypertrophy were studied. Echocardiographic and Doppler examinations were performed both before and after 6 months administration of alacepril. LV mass index (LVMI), LV flow propagation velocity (FPV), and the maximal early transmitral flow velocity (E) were measured. LVMI, FPV, and FPV/E ratio were compared to before and after administration of alacepril. In addition, the correlation between LVMI and FPV/E ratio was evaluated. Results showed that LVMI was significantly decreased (P < 0.05) and the FPV/E ratio was significantly increased (P < 0.05) after treatment with alacepril. There was no significant change in FPV. In addition, there was a significant negative correlation between LVMI and the FPV/E ratio (r = -0.662, P < 0.001). The present study indicates that the FPV/E ratio could be a useful noninvasive parameter to assess the diastolic dysfunction associated with LV hypertrophy in patients with hypertension.
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