【摘要】 目的:应用超声心动图检测原发性高血压老年患者的左室舒张功能,评价二尖瓣、肺静脉的血液动力学变化。方法:取正常对照组30名,并按1999年WHO/ISH标准将46例高血压患者分为Ⅰ、Ⅱ、Ⅲ期。应用彩色多普勒超声检测各组左心舒张功能及血流动力学参数。结果:原发性高血压老年组左心舒张功能指标:Ⅰ期高血压二尖瓣E峰<A峰,Ⅱ、Ⅲ期高血压患者肺静脉心房收缩期逆向速率均高于对照组(P<0.01)。结论:原发性高血压老年患者存在显著血流动力学异常,主要表现为左室舒张功能减退,左房压增高,Ⅰ期高血压患者舒张功能与二尖瓣血流参数有良好的相关关系,能完整评价高血压左室舒张功能。更多还原

【Abstract】 Objective:To observe the left ventricular diastolic function in elderly patients with hypertension and to evaluate the mitral valve homodynamic changes in the pulmonary vein by echocardiogram.Methods:Forty-six patients with hypertension were divided into grade Ⅰ,Ⅱand Ⅲ according to the WHO/ISH standard established in 1999.Color Doppler Ultrasound was used to observe the left ventricular diastolic function and dynamic parameters of blood flow of the patients.Results:The indexes of the left ventricular diastolic function in the elderly with hypertension were as follows:the mitral E peak was lower than A peak in patients with hypertension grade Ⅰ.The PVEA rate was higher than normal in patients with hypertension grade Ⅱ and grade Ⅲ(P<0.01).Conclusions:There exists significant abnormal homodynamics.The left ventricular diastolic function decreases and the left atrical pressure increases.The diastolic function of the elderly patients with hypertension grade Ⅰ is well correlated with the mitral blood flow parameters,which may fully evaluate the left ventricular diastolic function of patients with hypertension.更多还原