多普勒超声心动图评价高血压病左室舒张功能

目的研究彩色多普勒超声心动图对评价高血压患者左室舒张功能的应用价值。方法应用彩色多普勒超声心动图对60例高血压患者（高血压组）及54例健康人（对照组）进行检查，测定二尖辩口左室快速充盈峰值血流速度即E峰，左室舒张晚期峰值速度即A峰，E／A值，左室等容舒张时间（IVRT），E峰减速时间（DT），肺静脉收缩期峰值流速（S）、舒张期流速（D）、收缩期峰值流速与舒张期末流速之比（S／D）、舒张末逆行血流峰值（PVa），并对两组结果进行比较。结果高血压病组与正常组比较，E峰降低，A峰增高，E／A比值降低，IVRT延长，DT延长，S波升高，S／D增高，PVa增高，两组差异有显著性（P〈0．01）。结论彩色多普勒超声心动图将肺静脉血流频谱与二尖瓣前向血流频谱结合，可较全面评价左室的舒张功能，具有临床诊断价值。

Evaluation of left ventricular diastolic function in hypertension with Doppler echocardiOgraphy

Objective To explore the value of color Doppler echocardiography on left ventricular diastolic function in hypertension. Method 60 patients with hypertension and 54 normal subjects underwent color Doppler echocardiography. The early filling velocity of the E wave, Peak A wave velocity, E/A ratio, isovolumie relaxation time（IVRT）, DT, pulomonary vein systolic peak velocity（S） and diastolic peak velocity（D）, S/D ratio （S/D）, and end diastolic retrograde blood peak velocity（PVa） were observed. Results Compared with normal subjects, Peak E wave velocity of hypertension patients decreased, Peak A wave velocity increased, E/A ratio decreased, IVRT and DT prolonged, S increased, S/D increased, Pva increased （P〈0.05）. Conclusion Color Doppler eehocardiography can evaluate the left ventricular diastolic function in hypertension.