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干扰与脱节是造成复杂心律失常的原因之一.在心律失常心电图中,干扰与脱节是比较多见的现象;而且由于它们的存在往在使心律失常心电图变得疑难复杂了;再者就是这种现象在心电图上不能直接观察到,只有通过图解法间接加以显示。因此,对于干扰与脱节发生的原理必须有深刻的理解,才有可能进一步对心律失常心电图正确认识和分析。一、基本概念什么是干扰,心肌和心脏传导组织的兴奋性都具有不应期这一特征,当任何一部分心肌或心脏传导组织受到刺激后,继之另一个激动接踵而至,若这些组织还正处于绝对不应期便不能应激,则激动传导受阻;若这些组织正处于相对不
Interference and disconnection is one of the causes of complex arrhythmia .In the arrhythmia ECG, the interference and disconnection is more common phenomenon; and because of their existence in the arrhythmia ECG becomes difficult complicated; and then is this Phenomena can not be observed directly on the ECG, only indirectly through the graphical method to display. Therefore, the principle of interference and dislocation must have a deep understanding, it is possible to further correct understanding and analysis of arrhythmia ECG. First, the basic concept What is interference, cardiac and cardiac conduction of excitability has the characteristics of refractory period, when any part of the heart or heart conduction tissue is stimulated, followed by another one followed by excitement, if these organizations also Is in the absolute refractory period can not stress, then excited conduction is blocked; if these organizations are in the relative not