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Radiofrequency catheter ablation of left ventricular outflow tract tachycardia from the coronary cusp: a new approach to the tachycardia focus.

Abstract：

INTRODUCTION:Idiopathic ventricular tachycardia (VT) originating from the left ventricular outflow tract (LVOT) is rare. Previously reported were two cases of LVOT tachycardia which were treated with radiofrequency (RF) catheter ablation through endocardial aortomitral continuity. We report here a case of a repetitive LVOT tachycardia in which the QRS morphology during VT exhibited an atypical left bundle branch block and inferior axis. Pace mapping revealed that the origin of this VT was very close to the left sinus of Valsalva. Transcoronary cusp RF catheter ablation abolished the VT in this patient and is a new approach for the treatment of this kind of VT. The application of this approach to the other types of VT has yet to be determined.

journal_name

J Cardiovasc Electrophysiol

journal_title

Journal of cardiovascular electrophysiology

authors

Shimoike E,Ohnishi Y,Ueda N,Maruyama T,Kaji Y

doi

10.1111/j.1540-8167.1999.tb01271.x

keywords:

subject

Has Abstract

pub_date

1999-07-01 00:00:00

pages

1005-9

issue

7

eissn

1045-3873

issn

1540-8167

journal_volume

10

pub_type

杂志文章

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