Document Detail


Sustained monomorphic ventricular tachycardia ablation from the aortic sinus of valsalva.
MedLine Citation:
PMID:  11900287     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: The aim of this study was to delineate the electrophysiologic mechanisms of a novel type of ventricular tachycardia (VT) originating from the aortic sinus of Valsalva. METHODS AND RESULTS: Endocardial mapping was performed in four patients with symptomatic VT originating from the aortic sinus of Valsalva. Two patients suffered from dilative cardiomyopathy; the other two patients had no structural heart disease. Five VTs could be induced and terminated by programmed ventricular stimulation. Successful ablation was performed in the noncoronary sinus of Valsalva in three VTs and in the left aortic sinus in two. Abnormal (diastolic or presystolic) potentials were recorded during sinus rhythm (mean interval from the end of QRS complex to the potential 121+/-98 msec) and during VT (mean interval from the potential to QRS complex 64+/-45 msec) at effective sites in the aortic sinuses of Valsalva. Concealed entrainment was demonstrated at all successful sites. VT recurred in one patient after 1 month, whereas no recurrences were observed during follow-up of 8+/-6 months in the other three patients. CONCLUSION: Reentry constitutes one mechanism of VT originating from the aortic sinus of Valsalva. Entrainment mapping is useful to characterize the reentrant circuit of these VTs and to guide ablation.
Authors:
Yi-Gang Li; Gerian Grönefeld; Carsten Israel; Stefan H Hohnloser
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  13     ISSN:  1045-3873     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-03-19     Completed Date:  2002-10-02     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  130-4     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, J.W. Goethe-University, Frankfurt, Germany.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Catheter Ablation
Diastole / physiology
Electrophysiology
Female
Heart Conduction System / physiopathology
Humans
Male
Middle Aged
Sinus of Valsalva / physiopathology*
Tachycardia, Ventricular / physiopathology*,  surgery

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


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