摘要
目的应用定量组织速度成像技术测量高血压合并房颤患者左心室壁局部及整体的心肌运动速度,研究其在评价高血压合并房颤患者左心室功能的价值。方法原发性高血压组78例,高血压合并房颤组80例,正常对照组50例。采用彩色多普勒超声测量二尖瓣口舒张早期最大血流速度E峰、舒张晚期最大血流速度A峰,单平面Simpson方法测量左室射血分数(LVEF),定量组织速度成像测定左室壁基底段、中间段及二尖瓣环收缩期峰值速度(Sm)、舒张早期峰值速度(Em)、舒张晚期峰值速度(Am),同时计算E/Em。结果与对照组比较,原发性高血压组及高血压合并房颤组左室基底段及中间段的Em、Sm值减低(P<0.05),高血压合并房颤组比原发性高血压组减低(P<0.05)。原发性高血压组及高血压合并房颤组二尖瓣环处心肌运动速度(Em、Sm)值较对照组减低(P<0.05),两组间无差异(P>0.05);两组E/Em值均较对照组增高,高血压合并房颤组比原发性高血压组增高(P<0.05)。结论定量组织速度成像技术测量左室基底段及中间段、二尖瓣环处Sm、Em及E/Em值可以评价高血压合并房颤患者左室壁局部及整体收缩、舒张功能变化,简便、易行。
Objective To evaluate the value of left ventricular function in patients with hypertension com- bined with atrial fibrillation through Quantitative tissue velocity imaging （QTVI） technique used to measure the regional and global myocardial velocities in patients with hypertension and atrial fibrillation. Methods Essential hypertension group included 78 patients, the group of hypertension with atrial fibrillation included 80 patients and50 healthy people were enrolled as the control group. Mitral valve opening early diastolic maxi- mum blood flow velocity （ E ） and late diastolic maximal velocity I A） were obtained by color Doppler ultrasound. Left ventricular ejection fraction （LVEF） was measured with the single plane Simpson method. Through quantitative tissue velocity imaging the systolic velocities （ Sm ）, early diastolic velocities （Em ） and late diastolic velocities （Am） of left ventricular basal segment and middle segment were measured. The systolic peak velocity of mitral annular myocardium （Sm ）, early diastolic peak velocity （Em ） , late diastolic peak velocity （Am） were also examined, then E/Era was achieved. Results 1. Em and Sm values of left ventricular basal segment and middle segment in hypertensive patients and hypertensive patients with atrial fibrillation were lower than those in the control group （ P〈0.05 ）, and those in hypertensive patients with atrial fibrillation were lower than those in hypertensive patients （ P〈0.05 ）. 2 Em and Sm values of left ventricular mitral valve annulus in Hypertension group and hypertension complicated with atrial fibrillation group were lower than those in the control group（ P〈0.05 ） , and no significant difference in Em and Sm was found between the two groups（P〉0.05）. Compared with those in control group,E/Era value was higher , and that was significantly different between hypertension group hypertension with atrial fibrillation group （ P〈0. 05 ）.Conclusion QTVI technique could be used to measure myocardial movement velocities （ Sm, Em ） of left ventricular basal, middle or mitral valve annulus segments, which should be simple and convenient for evaluating changes in the systolic and diastolic functions of local left ventricle and global ventricle in hypertensive patients with atrial fibrillation.
出处
《湘南学院学报（医学版）》
2015年第4期11-13,共3页
Journal of Xiangnan University（Medical Sciences）
基金
2014年度湖南省医药卫生科研计划项目资助(C2014-15)
关键词
原发性高血压
房颤
定量组织速度成像
左心室功能
essential hypertension, atrial fibrillation, quantitative tissue velocity imaging, eftventricle function
