CATHETER-INDUCED MECHANICAL STUNNING OF ACCESSORY PATHWAY CONDUCTION - USEFUL GUIDE TO SUCCESSFUL TRANSCATHETER ABLATION OF ACCESSORY PATHWAYS
CATHETER-INDUCED MECHANICAL STUNNING OF ACCESSORY PATHWAY CONDUCTION - USEFUL GUIDE TO SUCCESSFUL TRANSCATHETER ABLATION OF ACCESSORY PATHWAYS
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DOI：
10.1111/j.1540-8159.1994.tb01348.x
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发表时间：
1994-01-01
影响因子：
1.8
通讯作者：
LAU, CP
中科院分区：
文献类型：
--
作者：
TAI, YT;LEE, LF;LAU, CP
已建立的表明解剖上接近副通路的电生理标准包括在顺行或逆行副通路传导时的早期心室或心房激活、记录副通路电位和心率图的一致性。本文描述了两例射频导管消融副通路的病例，在此过程中，将定位导管定位于房室环心内膜的特定部位，导致副通路难治性延长和/或传导减慢。射频能量在这些部位的应用成功地消除了辅助通路传导。然后在导管测图过程中，在“有意”的基础上观察到，导管诱导的副通路传导休克除了解剖上的接近外，还提供了令人满意的电极-组织接触的证据，并可能为成功的经导管副通路消融提供额外的预测价值。
Established electrophysiological criteria indicating anatomical proximity to an accessory pathway include early ventricular or atrial activation during antegrade or retrograde accessory pathway conduction, recording of accessory pathway potentials, and pace map concordance. This article describes two cases of RF catheter ablation of accessory pathways, during which positioning of the mapping catheter at specific sites on the endocardial aspect of the atrioventricular annulus led to prolongation of accessory pathway refractoriness and/or slowing of conduction. RF energy application at these sites successfully abolished accessory pathway conduction. Then observed on an ''intentional'' basis during catheter mapping, catheter induced stunning of accessory pathway conduction provides evidence of satisfactory electrode-tissue contact in addition to anatomical proximity, and may give additional predictive value to successful transcatheter accessory pathway ablation.