| Facilitation of atrioventricular reentrant tachycardia by iatrogenic right bundle branch block. | |
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MedLine Citation:
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PMID: 11453585 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present case report describes the diagnosis of a concealed bypass tract in the right lateral wall revealed by electrophysiologic evaluation performed in a patient with rare palpitations. A iatrogenic right bundle branch block (RBBB) caused the occurrence of an incessant atrioventricular reentrant tachycardia. The disappearance of the RBBB determined a very difficult induction of the tachycardia that, when induced, showed a shorter cycle length and ventriculoatrial interval than those observed during RBBB tachycardia. The presence of a RBBB ipsilateral to the right free wall accessory pathway provided a critical delay within the circuit thus allowing the bypass tract to recover excitability. This relevant delay also allows the sinus beat to initiate and stabilize the tachycardia thus rendering it incessant. |
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Authors:
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L Calò; F Lamberti; P Golia; M L Loricchio; A Castro; A Boggi; C Pandozi; M Santini |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Italian heart journal : official journal of the Italian Federation of Cardiology Volume: 2 ISSN: 1129-471X ISO Abbreviation: Ital Heart J Publication Date: 2001 Jun |
Date Detail:
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Created Date: 2001-07-16 Completed Date: 2001-12-04 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 100909716 Medline TA: Ital Heart J Country: Italy |
Other Details:
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Languages: eng Pagination: 468-71 Citation Subset: IM |
Affiliation:
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Department of Cardiac Diseases, San Filippo Neri Hospital, Rome, Italy. leonardo.calo@tin.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Bundle-Branch Block / complications* Humans Iatrogenic Disease* Male Tachycardia, Atrioventricular Nodal Reentry / etiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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