A Curious Case of Intermittent Left Bundle Branch Block Associated with Cough

A handful of cases of voluntary control of left bundle branch block (LBBB) have been described in the literature. We report the case of a middle-aged man who was found to have LBBB on baseline electrocardiogram (ECG) which disappeared on coughing and then reappeared with the same maneuver. Subsequen...

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Detalles Bibliográficos
Autores principales: Shahab, Hunaina, Faheem, Osman, Khandwala, Kumail, Khan, Aamir H
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2018
Materias:
Cardiology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318109/
https://www.ncbi.nlm.nih.gov/pubmed/30648055
http://dx.doi.org/10.7759/cureus.3520
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author Shahab, Hunaina
Faheem, Osman
Khandwala, Kumail
Khan, Aamir H
author_facet Shahab, Hunaina
Faheem, Osman
Khandwala, Kumail
Khan, Aamir H
author_sort Shahab, Hunaina
collection PubMed
description A handful of cases of voluntary control of left bundle branch block (LBBB) have been described in the literature. We report the case of a middle-aged man who was found to have LBBB on baseline electrocardiogram (ECG) which disappeared on coughing and then reappeared with the same maneuver. Subsequent myocardial perfusion scan showed reduced count in the anteroseptal region likely attributed to LBBB. It is possible that the intermittent conduction changes may be due to the alteration in the vagal tone associated with cough as reflected in the change in the PR interval on the ECG.
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spelling pubmed-63181092019-01-15 A Curious Case of Intermittent Left Bundle Branch Block Associated with Cough Shahab, Hunaina Faheem, Osman Khandwala, Kumail Khan, Aamir H Cureus Cardiology A handful of cases of voluntary control of left bundle branch block (LBBB) have been described in the literature. We report the case of a middle-aged man who was found to have LBBB on baseline electrocardiogram (ECG) which disappeared on coughing and then reappeared with the same maneuver. Subsequent myocardial perfusion scan showed reduced count in the anteroseptal region likely attributed to LBBB. It is possible that the intermittent conduction changes may be due to the alteration in the vagal tone associated with cough as reflected in the change in the PR interval on the ECG. Cureus 2018-10-30 /pmc/articles/PMC6318109/ /pubmed/30648055 http://dx.doi.org/10.7759/cureus.3520 Text en Copyright © 2018, Shahab et al. http://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Cardiology
Shahab, Hunaina
Faheem, Osman
Khandwala, Kumail
Khan, Aamir H
A Curious Case of Intermittent Left Bundle Branch Block Associated with Cough
title A Curious Case of Intermittent Left Bundle Branch Block Associated with Cough
title_full A Curious Case of Intermittent Left Bundle Branch Block Associated with Cough
title_fullStr A Curious Case of Intermittent Left Bundle Branch Block Associated with Cough
title_full_unstemmed A Curious Case of Intermittent Left Bundle Branch Block Associated with Cough
title_short A Curious Case of Intermittent Left Bundle Branch Block Associated with Cough
title_sort curious case of intermittent left bundle branch block associated with cough
topic Cardiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318109/
https://www.ncbi.nlm.nih.gov/pubmed/30648055
http://dx.doi.org/10.7759/cureus.3520
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