窦性心律并房性早搏经旁道下传与经房室结下传的整体散点图改变一例

Chinese Journal of Cardiac Pacing and Electrophysiology(2020)

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Abstract
患者男性,44岁,因反复心悸、胸闷10年,加重1天入院.动态心电图检查显示A型预激综合征,24 h Lorenz-RR散点图呈现房性早搏(简称房早)的4分布特征,且房早点集的长轴平行于y轴.心电图示窦性心律和房早时均表现为预激图形,房早时的预激程度大.射频消融旁道后,预激波消失,24 h Lorenz-RR散点图变成3分布,且房早点集与y轴构成一定的角度.结论:预激的程度影响房早的联律间期从而改变整体Lorenz-RR散点图图形.
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