肺静脉多普勒血流图评价肥厚型心肌病左室舒张功能

Assessment of Left Ventricular Diastoiic Function in Hypertrophic Cardiomyopathy Using Pulmonary Venous Doppler Blood Flow Pattern.

为评价肺静脉多普勒血流频谱检测左室舒张功能的价值,我们对23例正常人和22例肥厚型心肌病患者进行研究。结果发现,肥厚型心肌病二尖瓣血流频谱异常者肺静脉血流频谱也能表现异常;在肥厚范围局限的心肌病患者,即使二尖瓣血流频谱正常,肺静脉血流频谱也可表现异常,特别是AR峰持续时间和S波减速时间更有诊断意义。因此用肺静脉血流频谱评价左室舒张功能不仅较二尖瓣血流图敏感,而且可识别二尖瓣血流图假性正常化,深入研究有可能为评价左室舒张功能减退的程度提供新途径。

To evaluate the pulmonary venous Doppler blood flow pattern (PVF)in assessment of left ventricular function, 23 normal subjects and 22 hypertrophic cardiomyopathy patients were studied. The results showed that in patients with hypertrophic cardiomyopathy and abnormal mitral flow pattern (MVF) ,PVF could reflect abnormal. In patients with small extension hypertrophic cnr-diomyopathy and normal MVF,PVF could also reflect abnormal,espetially Ar duration and sclwave decelaration time. Evaluation of left ventricular function by PVF is not only more sencitive than MVF, but also could identify psuedonormalized MVF. It is possible that PVF could open the new way to evaluate the severity of decreased left ventricular diastolic function.