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Successful catheter ablation of two types of ventricular tachycardias triggered by cardiac resynchronization therapy: a case report.

Abstract：

:We report a case of a patient with nonischemic dilated cardiomyopathy and implantable cardioverter-defibrillator, in whom an upgrade to biventricular pacing triggered multiple episodes of ventricular tachycardias (VTs) of two morphologies. First VT presented as repetitive nonsustained arrhythmia of the same morphology as isolated ectopic beats, suggesting its focal origin. Second VT was reentrant and was triggered by the former ectopy, leading to a therapy from the device. Electroanatomical mapping of the left ventricle revealed relatively small low voltage area in the left ventricular outflow tract and identified both an arrhythmogenic focus as well as critical isthmus for reentrant VT. Radiofrequency catheter ablation successfully abolished both VTs. After the procedure, biventricular pacing was continued without any recurrences during a period of 24 months. The report emphasizes the role of catheter ablation in management of VTs triggered by cardiac resynchronization therapy.

journal_name

J Cardiovasc Electrophysiol

journal_title

Journal of cardiovascular electrophysiology

authors

Peichl P,Mlcochová H,Kautzner J

doi

10.1111/j.1540-8167.2006.00676.x

subject

Has Abstract

pub_date

2007-02-01 00:00:00

pages

218-21

issue

2

eissn

1045-3873

issn

1540-8167

pii

JCE676

journal_volume

18

pub_type

杂志文章

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