作者
Ian H Law, Nicholas H Von Bergen, Jean C Gingerich, Elizabeth V Saarel, Peter S Fischbach, Macdonald Dick II
发表日期
2006/8/1
期刊
Heart rhythm
卷号
3
期号
8
页码范围
903-907
出版商
Elsevier
简介
BACKGROUND
Junctional ectopic tachycardia in the normal heart is rare and often is resistant to pharmacologic management. Transcatheter ablation using radiofrequency energy places the AV node at risk.
OBJECTIVES
The purpose of this study was to report our experience with transcatheter cryothermal ablation using three-dimensional mapping in six patients with junctional ectopic tachycardia.
METHODS
A review of clinical and electrophysiologic data was performed on all patients with structurally normal hearts who underwent cryothermal ablation for treatment of junctional ectopic tachycardia at two institutions.
RESULTS
Six patients (age 7.7–36.5 years) underwent attempted transcatheter cryothermal ablation using three-dimensional mapping. Only one patient had achieved arrhythmia suppression on medical management. Cryothermal mapping (−30°C) localized the junctional focus while normal …
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