| Bundle branch block on alternate beats during atrial fibrillation. | |
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MedLine Citation:
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PMID: 15132372 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This article reports a case of tachycardia-dependent right bundle branch block (RBBB) occurring during atrial fibrillation. In some sections of the recording, an alternans occurs between complexes with a complete RBBB pattern and complexes showing normal intraventricular conduction or incomplete RBBB. Alternans is frequently observed during phases of fast and nearly regular rhythm, but it occurs even in the presence of a markedly irregular ventricular response. The RBBB alternans associated with short and regular RR intervals is likely to represent a manifestation of 2:1 bundle branch supernormal conduction, whereas alternans occurring with irregular cycles expresses a complex interaction between the RR cycle length and some mechanisms affecting intraventricular conduction, such as tachycardia-dependent bundle branch block, supernormal conduction and concealed retrograde activation of the anterogradely blocked bundle branch (the so-called "linking" phenomenon). |
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Authors:
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Vincenzo Carbone; Scipione Carerj; Maria Pia Calabrò |
Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Journal of electrocardiology Volume: 37 ISSN: 0022-0736 ISO Abbreviation: J Electrocardiol Publication Date: 2004 Jan |
Date Detail:
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Created Date: 2004-05-10 Completed Date: 2004-07-02 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0153605 Medline TA: J Electrocardiol Country: United States |
Other Details:
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Languages: eng Pagination: 67-72 Citation Subset: IM |
Affiliation:
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Department of Cardiology, Universiry of Messina, Messina, Italy. carbovincenzo@virgilio.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Atrial Fibrillation / complications*, physiopathology Bundle-Branch Block / etiology*, physiopathology Electrocardiography Heart Conduction System / physiopathology Humans Hypertension / complications Male Pulmonary Disease, Chronic Obstructive / complications |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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