高血压病患者左室舒张功能不全与U波关系探讨

目的 探讨高血压患者左室舒张功能不全与U波的关系。方法 用超声心动图对104例高压病患者的舒张早期最大峰值速度（E峰），舒张晚期最大峰速度（A峰），左室射血分数（LVEF），左房内径进行测量。将其分为左室舒张功能正常及左室舒张功能不全组。另有46个年龄相当的正常人作为对照组。对所有病人及对照组行常规心电图检查，分析U波形态。结果 左室舒张功能不全的U波倒置发生率明显高于左室舒张功能正常组及正常对照组（24％vs 15% and 13%)，前者与后二者相比有显著性差异（P＜0．01）。结论 U波倒置可能是高血压病左室舒张功能不全的标志之一。

Relation between Diastolic Dysfunction and U Wave in Patients with Essential Hypertension

Objective To determine the relation between U wave and diastolic dysfunction. Methods E and A peak velocity at rapid filling (E, A ), left ventricular ejection fraction (LVEF), left atrial (LA) diameter between 104 essential hypertension patients were measured by Doppler echocardiograms and the ratio of E and A(E/A) was calculated. All patients were stratified into 2 groups according to diastolic function. 46 age matched normotensives were studied as control group. U waves of their ECG were analyzed. Results The patients with diastolic dysfunction had significantly higher incidence for U wave inversion than those with normal diastolic function and control group ( P <0 01). Conclusion U wave inversion may be one of the markers of diastolic dysfunction in essential hypertension.