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Narrow Irregular QRS Tachycardia with AV Dissociation: What Is the Mechanism?
MedLine Citation:
PMID:  23140400     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Arrhythmia Rounds. A 39-year-old woman with no structural heart disease and frequent episodes of sudden onset palpitations was referred for the electrophysiological study. During the study, a slightly irregular narrow QRS tachycardia with AV dissociation was repeatedly induced and spontaneously terminated. Apparently, irregular cycles and termination of the tachycardia were related to the dissociated sinus rhythm: atrial depolarizations timed when the AV junction was refractory were able to reset the tachycardia, while early atrial depolarizations caused its termination. This observation was enough to diagnose the tachycardia mechanism in our case. (J Cardiovasc Electrophysiol, Vol. pp. 1-3).
Authors:
Jesús Castillo Castillo; Pablo Peñafiel Verdú; Juan Martínez Sánchez; Arcadi García Alberola
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-3
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  -     ISSN:  1540-8167     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-11-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Wiley Periodicals, Inc.
Affiliation:
Electrophysiology Unit, Department of Cardiology, Virgen de la Arrixaca University Hospital, Murcia, Spain.
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