Document Detail


Optimal stimulation of the left ventricle.
MedLine Citation:
PMID:  11843469     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cardiac resynchronization therapy has been proposed to alleviate heart failure symptoms refractory to classic drug treatment. Potential benefits hinge on a number of key components, including judicious selection of patients likely to respond to the therapy and appropriate placement of the leads, particularly the lead responsible for left ventricular pacing. Evidence of ventricular asynchrony is an individual prerequisite for consideration of cardiac resynchronization therapy. Ventricular asynchrony can be diagnosed by recording a QRS duration >150 msec or during echocardiography, with the goal of investigating the mechanical aspect of asynchrony. The optimal left ventricular pacing site can be defined by the latest segmental contraction, which is mainly the mid-lateral wall. The first-choice technique to initiate left ventricular pacing consists of a transvenous approach via the coronary sinus tributaries. In practice, the final left ventricular pacing location also depends on highly variant coronary sinus anatomy, acceptable electrical parameters, and lead stability. Procedure-related complications, which consist mainly of coronary sinus perforation and phrenic nerve stimulation, remain low (<1%) and should decrease further with the use of new features specific to the procedure.
Authors:
Daniel Gras; Jean-Pierre Cebron; Philippe Brunel; Bernard Leurent; Yves Banus
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  13     ISSN:  1045-3873     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  2002 Jan 
Date Detail:
Created Date:  2002-02-14     Completed Date:  2002-07-24     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  S57-62     Citation Subset:  IM    
Affiliation:
Unité de soins et de cardiologie interventionnelle, Polyclinique Saint Henri, Nantes, France. dangras@aol.com
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MeSH Terms
Descriptor/Qualifier:
Cardiac Pacing, Artificial*
Electric Stimulation
Electrocardiography
Humans
Ventricular Function
Ventricular Function, Left / physiology*

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


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