Document Detail

Double ventricular responses to a single atrial depolarization in a patient with dual AV nodal pathways.
MedLine Citation:
PMID:  1370997     Owner:  NLM     Status:  MEDLINE    
Electrophysiological study was performed in a patient with atrioventricular nodal reentrant tachycardia (AVNRT). Double ventricular responses through dual AV nodal pathways were observed by atrial extrastimulus technique followed by initiation of AVNRT. The difference in conduction time between the slow and fast AV nodal pathways was longer than 320 msec. A ventricular extrastimulus delivered during sinus rhythm, which was not followed by ventriculoatrial conduction, also induced AVNRT. These findings indicated the presence of an antegrade critical delay and retrograde block in the slow AV nodal pathway, criteria necessary for the occurrence of a double ventricular response.
H Sakurada; M Sakamoto; Y Hiyoshi; T Tejima; T Motomiya; M Sugiura; M Hiraoka
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  15     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1992 Jan 
Date Detail:
Created Date:  1992-03-12     Completed Date:  1992-03-12     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:  28-33     Citation Subset:  IM    
Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Japan.
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MeSH Terms
Atrioventricular Node / physiopathology*
Cardiac Pacing, Artificial*
Heart Block / physiopathology
Tachycardia, Atrioventricular Nodal Reentry / diagnosis*,  physiopathology
Time Factors
Ventricular Function / physiology

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