Document Detail


ECG clues for diagnosing ventricular tachycardia mechanism.
MedLine Citation:
PMID:  17971133     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Three mechanisms underlie the initiation and maintenance of ventricular tachycardia: automaticity, triggered activity, and reentry. As straightforward as these mechanisms are, assessing which mechanism is operative in a particular patient's ventricular tachycardia can be difficult. The optimal treatment strategy for ventricular tachycardia in a given patient can be influenced by the mechanism underlying the ventricular tachycardia. Appropriately counseling patients, choosing the optimal pharmacologic agent that maximizes efficacy while minimizing undesirable side effects, risks, and toxicities, as well as recommending and timing ablative therapy all hinge on identifying the probable mechanism of ventricular tachycardia. Much has been published regarding invasive electrophysiologic maneuvers that allow for correct diagnosis of ventricular tachycardia mechanism. The aim of this clinical review is to provide insight into VT mechanisms based on ECG clues of spontaneous arrhythmia events and the response to pharmacologic manipulation prior to invasive electrophysiologic evaluation.
Authors:
Michael P Riley; Francis E Marchlinski
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Publication Detail:
Type:  Journal Article; Review     Date:  2007-10-24
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  19     ISSN:  1540-8167     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  2008 Feb 
Date Detail:
Created Date:  2008-02-07     Completed Date:  2008-04-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  224-9     Citation Subset:  IM    
Affiliation:
Electrophysiology Section, Division of Cardiology, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA.
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MeSH Terms
Descriptor/Qualifier:
Electrocardiography / methods*
Humans
Tachycardia, Ventricular / diagnosis*,  physiopathology*

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