摘要
目的比较不同心电图(ECG)亚型的完全性左束支传导阻滞(CLBBB)患者的右室功能,评价不同亚型ECG的CLBBB患者右室功能的差异。方法同期收集CLBBB患者58例和26例健康体检者(对照组)。根据ECG的I、V5或V6导联T波与QRS主波方向是否一致,将CLBBB患者分为同向型(cLBBB)(n=30)组和异向型(dLBBB)组(n=28)。对三组均应用常规超声心动图及二维斑点追踪技术评估其右室功能。结果 (1)与对照组比较,cLBBB组及dLBBB组的三尖瓣环收缩期位移、右室整体纵向应变及游离壁整体纵向应变均减低,且dLBBB组低于cLBBB组(P<0.05)。(2)dLBBB组三尖瓣E/e′大于对照组(P<0.05),而cLBBB与对照组无明显差异(P>0.05)。(3)cLBBB组及dLBBB组右室心肌做功指数增加,且dLBBB组高于cLBBB组(P<0.05)。结论 CLBBB患者的右室收缩和整体功能均减低,且异向型较同向型进一步减低。
Objective To evaluate and compare the right ventricular function in complete left bundle branch block （CLBBB） patients with different electrocardiogram subtypes using two-dimensional speckle tracking echocardio- graphy （STE）. Methods Fifty-eight patients with CLBBB were selected using standard 12-lead electrocardio- gram, and they were allocated to two subgroups： cLBBB （concordant） group（n = 30） and dLBBB （discordant） group（n=28） according to whether the T wave in lead I, V5 or V6 was concordant with QRS wave or not on elec- trocardiogram. And 26 healthy individuals were included as control group during the study period. They all under- went echocardiography and STE examination. Results ①Tricuspid annular plane systolic excursion, right ven- tricular systolic global longitudinal strain and lateral wall systolic global longitudinal strain decreased in cLBBB and dLBBB patients compared to controls, and more significantly decreased in dLBBB patients （P〈0.05）. ②Tricuspid E/e＇ increased in dLBBB patients （P〈0.05）. while there were no significant difference between cLBBB patients and controls （P〉0.05）.③Right ventricutar index of myocardial performance increased in cLBBB and dLBBB patients, and more significantly increased in dLBBB patients （P〈0.05）. Conclusion The right ventricular function de- creased in patients of CLBBB, and in CLBBB patients, dLBBB is associated with a worse right ventricular systolic, diastolic and total performance than that in cLBBB patients.
作者
孔凡鑫
孟平平
马春燕
李光源
王永槐
关正宇
杨军
KONG Fan-xin;MENG Ping-ping;MA Chun-yan;LI Guang-yuan;WANG Yong-huai;GUAN Zheng-yu;YANG Jun(Department of Cardiovascular Ultrasound,the First Affiliated Hospital of China Medical University,Shenyang 110001,Liaoning,China)
出处
《中国心脏起搏与心电生理杂志》
2018年第5期456-459,共4页
Chinese Journal of Cardiac Pacing and Electrophysiology
关键词
心电图亚型
完全性左束支传导阻滞
右室功能
超声心动图
Electrocardiogram subtype
Complete left bundle branch block
Right ventricular function
Echocardiography
