Document Detail

The proarrhythmic effect of incomplete pulmotricuspid isthmus ablation in a patient with sarcoid-related ventricular tachycardia?
MedLine Citation:
PMID:  18363687     Owner:  NLM     Status:  MEDLINE    
Proarrhythmia is relatively common after extensive atrial ablation for atrial fibrillation, but has not been frequently documented after catheter ablation of ventricular tachycardia (VT). In theory, this phenomenon could occur if an incomplete ablation line is created between two nonconducting structures, such as dense scar or valvular annuli. This report illustrates the possible proarrhythmic effect of ablation in a patient with sarcoid-related VT and extensive right ventricular (RV) myopathy who presented with slow incessant VT one month after an ablation procedure including ablation at the pulmotricuspid isthmus (PTI). The extensive preexisting RV myopathy appeared to be an important substrate in the pathogenesis of this patient's incessant VT. This case suggests that the PTI region may serve as a critical tachycardia isthmus if sufficiently modified with an incomplete ablation line in the setting of significant myocardial scarring.
Arash Aryana; Andre D'Avila; Jeremy N Ruskin; Vivek Y Reddy
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, N.I.H., Extramural     Date:  2008-03-21
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  19     ISSN:  1540-8167     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-08-28     Completed Date:  2008-10-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  869-72     Citation Subset:  IM    
Cardiac Arrhythmia Service, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.
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MeSH Terms
Cardiomyopathies / complications*,  surgery*
Catheter Ablation / adverse effects*
Middle Aged
Tachycardia, Ventricular / diagnosis,  etiology*,  surgery*
Treatment Outcome
Tricuspid Valve / surgery*
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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