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P波消失,代以一系列心房扑动波,呈三角形锯齿状,形态,波幅,时距相同,波间无等电线,频率次/分。房室传导2:1。心电图示一系列房性P波,P`-P`间距规则,P`-R间期大于0.12秒,频率次/分,呈2:1下传心室,QRS波群呈室上性。ST:Ⅱ、Ⅲ、aVF导联上斜型压低mv;
心房扑动
ST段改变,结合临床
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心率低于正常范围(HR小于60次/分)。同导联P波形态一致,P-P间期规则P-R间期进行性逐搏延长,直至出现P波后脱落一次QRS波,心室漏搏后的第一个下传搏动的P-R间期恢复正常心室漏搏造成的长R-R间期小于两倍窦性周期,周而复始。V1导联呈rsR`型,I、V5、V6导联S波宽鈍。aVR导联有迟缓宽大而粗鈍的R波。QRS波时间0.12s。
QRS波:II、III、avF导联呈rS或QS型,S波有切迹。
结论:1.窦性心动过缓;2.一度房室传导阻滞;3.完全性右束支传导阻滞;4.异常Q波,结合临床;5.电轴右偏
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心率低于正常范围(HR小于60次/分)。V1导联呈rsR`型,I、V5、V6导联S波宽鈍。aVR导联有迟缓宽大而粗鈍的R波。QRS波时间0.12s。同导联P波形态一致,P-P间期规则P-R间期进行性逐搏延长,直至出现P波后脱落一次QRS波,心室漏搏后的第一个下传搏动的P-R间期恢复正常心室漏搏造成的长R-R间期小于两倍窦性周期,周而复始。
窦性心动过缓
完全性右束支传导阻滞
一度房室传导阻滞
心电轴右偏
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QRS波:V1、V2导联呈qRs或RS型,R/S1,V5、V6导联呈RS型,R/S≤1
T波:V3-V6导联低平V1呈qR型,V5呈RS型R/S大于1,S大于0.7mv,RV1+SV5大于1.2mv。aVR导联R/Q大于1。标准导联呈现SⅠSⅡSⅢ型。心电轴右偏度。V1呈qR型,V5呈RS型R/S大于1,S大于0.7mv,RV1+SV5大于1.2mv。aVR导联R/Q大于1。标准导联呈现SⅠSⅡSⅢ型。心电轴右偏度。
QRS波:V1、V2导联呈rsRs或RS型,R/S1,V5、V6导联呈RS型,R/S≤1;T波:V3-V6导联低平。
结论:左前分支传导阻滞
T波改变,结合临床
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