The cardiac function indexes of 65 patients with ventricular premature beat(VPB),atrial premature beat (APB) and junctional premature beat(JPB) were evaluated with coler Doppler echocardiagram.

• 本文应用彩色多普勒超声心动图检查、观察和测定了65例室性早搏（室早）、房性早搏（房早）和交界性早搏患者早搏时和早搏前、后各一个心动周期的心功能指数变化。