Document Detail

Successful catheter ablation of two types of ventricular tachycardias triggered by cardiac resynchronization therapy: a case report.
MedLine Citation:
PMID:  17338770     Owner:  NLM     Status:  MEDLINE    
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.
Petr Peichl; Hanka Mlcochová; Josef Kautzner
Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  18     ISSN:  1540-8167     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-06-11     Completed Date:  2007-07-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  218-21     Citation Subset:  IM    
Department of Cardiology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
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MeSH Terms
Cardiac Pacing, Artificial / adverse effects*
Catheter Ablation / methods*
Middle Aged
Tachycardia, Ventricular / etiology*,  surgery*
Treatment Outcome

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