Document Detail

Left-sided intraventricular conduction delay concealed by right bundle branch block.
MedLine Citation:
PMID:  18342878     Owner:  NLM     Status:  MEDLINE    
The electrocardiograms of a 69-year-old woman with severe heart failure showed a left-sided nonspecific intraventricular conduction delay (QRS duration, 0.13 seconds) characterized by notches and slurrings in the descending part of the R waves in the left precordial leads and in the ascending parts of the S waves in the right precordial leads. Subsequently, a complete right bundle branch block with wider QRS complexes (0.17 seconds) appeared. It is possible to consider that the left-sided nonspecific intraventricular conduction delay was concealed by the greater conduction delay occurring when the complete right bundle branch block was present. This would be in keeping with a previous study using Doppler tissue imaging in which this was postulated but where the corresponding electrocardiograms were not shown.
Agustin Castellanos; Freddy del Carpio Munoz; Jose A Martel
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2008-03-14
Journal Detail:
Title:  Journal of electrocardiology     Volume:  41     ISSN:  1532-8430     ISO Abbreviation:  J Electrocardiol     Publication Date:    2008 Jul-Aug
Date Detail:
Created Date:  2008-06-23     Completed Date:  2008-08-21     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  357-9     Citation Subset:  IM    
Division of Cardiology, Department of Medicine of the University of Miami Miller School of Medicine, Miami, FL, USA.
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MeSH Terms
Arrhythmias, Cardiac / complications*,  diagnosis*
Bundle-Branch Block / complications*,  diagnosis*
Diagnosis, Differential
Ventricular Dysfunction, Left / complications*,  diagnosis*

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