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P波离散度对急性冠脉综合征伴室上性心律失常的预测价值

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摘要 目的探讨体表心电图P波离散度(Pd)对急性冠脉综合征(ACS)患者发生室上性心律失常,包括阵发性心房颤动(Af)及房性心律失常(AR)的预测价值。方法将128例ACS患者分为3组,Af组38例,AR组45例,测量其体表心电图Pd、P波最大时限(Pmax),并与未合并有室上性心律失常的对照组45例进行对比分析。结果Af组、AR组中Pd、Pmax均大于对照组(P<0.01),Pd≥40ms、Pmax>110ms.预测Af的敏感性分别为73.68%、76.31%,特异性为84.44%、60%,阳性预测值为80%、85%,而当Pmax≥110ms+Pd≥40ms时,其敏感性为63.16%,特异性为91.11%,阳性预测值为86.71%。结论体表心电图Pd是预测ACS患者发生室上性心律失常的有效指标,尤其是将Pd与Pmax联合应用,更增加了预测的特异性和阳性预测值。
机构地区 北京隆福医院
出处 《实用心电学杂志》 2005年第3期172-174,共3页 Journal of Practical Electrocardiology
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