左室特发性室速患者射频消融术后T波记忆现象的临床意义

左室特发性室速患者射频消融术后T波记忆现象的临床意义

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-01-25

Clinical Signifi cance of T Wave Memory in Patients with Left Idiopathic Ventricular Tachycardia after Radiofrequeney Ablation

Received:1900-01-01 Revised:1900-01-01 Online:2012-01-25

摘要/Abstract

摘要： 目的:探讨左室特发性室速患者射频消融术后出现T波记忆现象的特征及临床意义.方法:对30例左室特发性室速患者行射频消融手术,观察心室激动顺序改变后T波记忆现象的发生率、分布特点和规律,并研究T波记忆与室速之间的相关关系.结果:30例左室特发性室速患者经成功射频消融手术后,有13例出现T波记忆现象,发生率为43.3%.所累及的导联以Ⅱ、Ⅲ、AVF为主,也可见于 V3-V6导联,其中Ⅲ导和 AVF导联的出现频率可达100%.T波倒置深度Ⅲ>aVF>II (P<0.05~0.01).室速发作时持续的时间(分种数)与T波完全恢复正常的时间(天数)呈正相关关系(r=0.837,P<0.001).结论:T波记忆是左室特发性室速患者射频消融术后常见的一种心电现象,不具病理意义,熟悉其特点和变化规律,有助于作出正确的诊断和治疗.

Abstract: Objective:To investigate the clinical significance of T wave memory in Patients with Left Idiopathic Ventricular Tachycardia(LIVT) after radiofrequeney ablation(RFCA).Methods:Characteristics of T wave memory were analyzed before and after RFCA in 30 patients with LIVT.Results:① All 30 patients with LIVT,13 cases had T wave abnormalities after successful ablation,accounting for 43.3%;② T wave memory was mainly observed in inferior wall ECG leads(Ⅱ,Ⅲ and AVF) and amplitude of inverted T wave was Ⅲ>avF>Ⅱ(P<0.05-0.01);③There is a positive correlation between the duration of VT and T wave recovery time(r=0.837,P<0.001).Conclusion:T wave memory after ablation in LIVT patients is a common electrophysiological phenomenon,which should be distinguished from cardiac injury and myocardial ischemia.

. 左室特发性室速患者射频消融术后T波记忆现象的临床意义[J]. .

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