应用组织多普勒成像对126例原发性高血压病患者左室舒张功能的评价

Evaluated the Application of Tissue Doppler Imaging in 126 Patients with Primary Hypertension and Diastolic Function

目的:探讨应用组织多普勒成像对原发性高血压病患者左室舒张功能的评价。方法:回顾2008年1月-2014年3月笔者所在科室超声心动图检查的126例原发性高血压病患者资料,均采用GE公司Vivid E9超声诊断仪进行检测,分别使用组织多普勒成像技术检查二尖瓣环舒张期运动速度(舒张早期运动峰值速度Ea峰,舒张晚期运动峰值速度Aa峰及Ea/Aa值)和脉冲多普勒检测二尖瓣口舒张期血流频谱(E峰、A峰及E/A值)对左室舒张功能进行评价。对其检测结果,根据患者的临床诊断资料进行分析与探讨。结果:在126例患者中,检测中全部患者的Ea/Aa值均小于1,但是有116例E/A值小于1,10例E/A值大于1(假性正常现象)。结论:DTI是检测原发性高血压病患者早期舒张功能是否受损的可靠指标,从检测结果看来,优于脉冲多普勒检测二尖瓣口血流法。高血压病患者在早期发病中就会出现舒张功能异常的现象,当发展到合并左心室肥厚时左室舒张功能降低更明显。

Objective： To explore the clinical application of tissue Doppler imaging in patients with essential hypertension.Method：Review the information to patients who were admitted to our hospital from 2008 January to 2014 in March, a total of 126 patients with hypertension, the patient underwent Heartbeat diastolic function graph examination of patients, followed by detection in patients with application of GE company Vivid E9 ultrasonography,using tissue Doppler imaging technology to check the mitral annular diastolic velocities（early diastolic peak velocity of Ea peak, peak late diastolic velocity motion of Aa peak and Ea/Aa value） and pulsed Doppler mitral diastolic flow spectrum（E peak, A peak and E/A values）. Nursing staff recorded the patient＇s test results,analyzed and discussed according to the data of patients with clinical diagnosis.Result： In 126 patients, Left ventricular hypertrophy in patients with 92 cases, the wall thickness were equal to 12 mm. 34 cases of non left ventricular hypertrophy, ventricular wall thickness was less than or equal to 11 mm.All patients with Ea/Aa values were less than 1, but there were 116 E/A value of less than 1, 10 cases with E/A values greater than 1（false normal）.Conclusion： DTI is a reliable index for detecting the primary hypertension patients early diastolic function is impaired, it appears from the testing results, better than the pulse Doppler detection of mitral flow method. Patients in the early onset of hypertension will appear the phenomenon of abnormal diastolic function. When the development to the merger of left ventricular hypertrophy and left ventriculardiastolic function significantly decreased.