Evaluation of left ventricular synchronicity in patients with premature ventricular beats from right ventricular outflow tract by omni-directional M-mode echocardiography
全方向M型超声评价右心室流出道起源室性期前收缩患者左心室运动同步性

Objective To evaluate the left ventricular radial synchronicity in patients with premature ventricular beats (PVB) from right ventricular outflow tract (RVOT) with omni-directional M-mode echocardiography (OME). Methods Two groups were involved in this study including PVB group (n=30,patients with PVB from RVOT) and control group (n=30 healthy subjects). The time to peak myocardial systolic velocities (Ts) and the time to peak myocardial early-diastolic velocities (Td) were obtained from the velocity-time c...