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急性心肌梗死并发快速型房性心律失常与P波离散度关系

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摘要 P波离散度(Pd)是指同步记录的12导联心电图中,不同导联中测定的Pmax与Pmin的差值。多数该值<40ms,>40ms时提示心房内不同部位存在非均质性电活动,能够引发房性心律失常和心房颤动(Af),是体表心电图预测Af的1个新指标^[1]。AMI者一旦出现Af、心房泵功能丧失、心脏血流动力学恶化,预后差、死亡率高^[2]。AMI者病程中有10%
出处 《实用心电学杂志》 2003年第6期468-469,共2页 Journal of Practical Electrocardiology
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