摘要
目的了解成人左后胸导联心电图正常值.方法分析100例正常成人常规12导联及V7-9导联心电图.结果V7、8导联q波时间均＜40ms,V9导联q波时间≥40ms者5例(5.2%).V7-9导联ST段大多抬高＜0.5mm,但J点后80ms处ST段抬高＞1.0mm者分别为11%、8%及2%.结论V7-9导联q波时间≥40ms、J点后80ms处ST段抬高＞1.0mm可诊断心电图异常.
Objective To analyseelectrocardiographicpatternsin leftposteriorchestleadsin nor-maladult.Methods Standard12leadsandV 7~9 leadselectrocardiogramswererecordedandanalysedin100normaladult.Results In V 7 andV 8 leads,durationofq wave>40msinnoneofsubjects,butinV 9 lead,du-rationofq wave≥40mswasseenin5(5.2%)subjects.STsegmentelevation<0.5mminV 7~9 leadsisinmajority.ST segmentelevation>1.0mmat80msafterJ pointinV 7~9 leadswasseenin11%,8%and2%,respectively.Con clusion q waveduration≥40msandST segmentelevation>1.0mmat80msafterJ pointin V 7~9 leads maybea diagnosticcriterionofabnormalelectrocardiogram.
出处
《心电学杂志》
2002年第4期199-200,214,共3页
Journal of Electrocardiology(China)
关键词
心电图
左后胸导联
正常成人
Electrocardiogram,Leftposteriorchestleads,Normaladult
