Document Detail


Significance of ventricular pacing site in manifest entrainment during orthodromic atrioventricular reentrant tachycardia with left-sided accessory pathway.
MedLine Citation:
PMID:  1381078     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We examined entrainment by ventricular pacing in six patients during orthodromic atrioventricular reentrant tachycardia (AVRT) utilizing a left-sided lateral accessory pathway. Constant fusion and progressive fusion were demonstrated in all patients by left ventricular pacing during tachycardia, but in none of the patients by right ventricular pacing. When left ventricular pacing was performed during AVRT, the antidromic wave front from the pacing impulse (n) collided with the orthodromic wave front of the previous pacing beat (n - 1) within the ventricle, therefore, constant fusion and progressive fusion were demonstrated in the surface electrocardiographic QRS complexes. On the other hand, when right ventricular pacing was performed during orthodromic AVRT, the antidromic wave front from the pacing impulse (n) collided with the orthodromic wave front of the previous paced beat (n - 1) within the normal atrioventricular pathway, and constant fusion and progressive fusion were therefore not demonstrated. These phenomena were explained by the relationship of the ventricular pacing site and the reentrant circuit. This study demonstrates the importance of the pacing site in manifest entrainment of orthodromic AVRT during ventricular pacing.
Authors:
K Suyama; T Ohe; T Kurita; T Maruyama; H Takaki; N Aihara; S Kamakura; W Shimizu; M Matsuhisa; K Shimomura
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  15     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1992 Aug 
Date Detail:
Created Date:  1992-10-01     Completed Date:  1992-10-01     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1114-21     Citation Subset:  IM    
Affiliation:
Second Department of Internal Medicine, Shinshu University School of Medicine, Nagano, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Cardiac Pacing, Artificial / methods*
Electrocardiography
Electrophysiology
Female
Heart Conduction System / physiopathology*
Heart Ventricles
Humans
Male
Tachycardia, Atrioventricular Nodal Reentry / diagnosis,  physiopathology*
Wolff-Parkinson-White Syndrome / diagnosis,  physiopathology*

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


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