Methods Seventy-three patients with HHD and 75 healthy subjects (NS) were examined by Doppler echocardiography. The morphological data, valvular function, left ventricular systolic function and hemodynamic parameters of HHD and NS were studied.

• 方法 应用多普勒超声测量 73例HHD和 75例健康对照组各心腔大小、瓣口血流速度和瓣膜返流 ,评价左室收缩功能 ,并利用三尖瓣返流速度计算肺动脉收缩压。