左房构型的超声检测对高血压病左室舒张功能的评价

Evaluation of Left Ventricular Diastolic Function in Hypertension Using Left Atrial Structure Measured with Ultrasound

目的 :以左房构型评价高血压病左室舒张功能的改变。方法 :用二维及脉冲多普勒超声心动图测量不同危险程度高血压病患者左房分数缩短率 (LAFs)、左房灌注分数 (LAT)和左房射血力 (AEF) ,并与二尖瓣舒张期血流 (A/E)比值比较。结果 :LAFs、LAT、AEF在中危组、高危组和极高危组高血压病患者明显增高 ,与正常组及低危组均有显著性差异 ,而A/E在中危组、高危组和极高危组间无显著性差异。表明高血压病随危险度的增高 ,左室舒张功能逐渐减退。结论 :LAFs、LAT和AEF对不同危险度分层的高血压病左室舒张功能的评价优于A/E比值。

Objective:To evaluate left ventricular diastolic function using left atrial structure measured with ultreasound in Essential Hypertension(EH) Methods:LAFs,LAT and AEF were measured by two-dimensional and pulsing Doppler echocardiography They were also compared with A/E ratio Results:LAFs,LAT and AEF were much higher in group EH with middle-degreed danger,group EH with higher-degreed danger and group EH with highest-degreed danger Compared with group normal control and group EH with lowest-degreed danger,the difference was significant As A/E ratio,the difference among group EH with middle-degreed danger,group EH with higher-degreed danger and group EH with highest-degreed danger was not significant It indicated that with the increasing of the degree of danger in EH,left ventricular diastolic function decreased progressively Conclusion:The measurement of LAFs,LAT and AEF is better than that of A/E in evaluating left ventricular diastolic function