摘要
目的在正常中国人中,对标准导联和Mason-Likar导联所记录肢体导联心电图的波段进行定量比较。方法经冠脉造影和心脏超声检查结果均正常者共84例,列为正常人。结果两类导联系统所记录的心电图存在良好的相关性,但也存在显著性差异。与标准肢体导联相比,Mason-Likar肢体导联心电图的差异包括:①心电轴右偏,平均增加23.3±26.7度;②II、III和aVF导联中R波和QRS波振幅显著增加,ST段显著下移,III和aVF导联T波振幅降低或T波转为倒置,其中III导联变化最大;③I和aVL导联QRS波振幅显著增加,ST段显著上移伴T波振幅增加。与心电图改变有关的相关性包括:①R波振幅改变与QRS波电轴偏移存在相关性;②ST80ms和T波振幅与T波电轴偏移存在相关性,与QRS波振幅改变也存在相关性。结论应充分认识两类导联系统所记录心电图的差异性。
Objective To compare ECGS from standard limb-lead system with ECGS from Mason-Likar modified limb-lead system in normal subjects. Methods Study population consisted of 84 subjects, in whom the test of coronary angiography and echocardiography were normal. Results The ECGs recorded from two limb-lead systems had significant difference but had co-relationship. Compared with standard limb-lead ECGS the ECGS from Mason-Likar modified limb-lead system had differences in： ①right QRS axis deviation, increasing 23.3±26.7°; ②significant increase in R-wave and QRS complex amplitude in lead Ⅱ, Ⅲ and aVF, significant ST seg-ment depression in lead Ⅱ, Ⅲ and aVF, and significant decrease in T wave amplitude or T wave inverted in lead III and aVF, the maximal change observed in lead Ⅲ; ③significant increase in QRS complex amplitude, significant ST segment elevation and significant increase in T wave amplitude in lead I and aVL. The changes of ECG from Mason-Likar modified limb-lead system were related to： ①the changing of R wave amplitude associated with right QRS axis deviation; ②the shifting of ST80ms and the changing of T wave amplitude associated with T axis deviation and QRS complex amplitude changing. Conclusions It is important to know the difference in ECG between standard limb-lead system and Mason-Likar modified limb-lead system.
出处
《临床心电学杂志》
2007年第6期437-441,共5页
Journal of Clinical Electrocardiology
关键词
心电图
导联系统
electrocardiogram
lead system
