Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?

The 12-lead electrocardiogram (ECG) of a 79-year-old male patient with recurrent pre-syncope showed irregular sinus rhythm with constant PR interval and left bundle branch block (LBBB) with intermittently blocked P waves. The beat following the blocked P wave had a narrower QRS with a shorter PR int...

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Detalles Bibliográficos
Autores principales: Gupta, Anunay, Bhargava, Kartikeya, Bhasin, Dinkar, Agstam, Sourabh, Isser, Hermohander Singh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8263326/
https://www.ncbi.nlm.nih.gov/pubmed/33971284
http://dx.doi.org/10.1016/j.ipej.2021.05.001
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author Gupta, Anunay
Bhargava, Kartikeya
Bhasin, Dinkar
Agstam, Sourabh
Isser, Hermohander Singh
author_facet Gupta, Anunay
Bhargava, Kartikeya
Bhasin, Dinkar
Agstam, Sourabh
Isser, Hermohander Singh
author_sort Gupta, Anunay
collection PubMed
description The 12-lead electrocardiogram (ECG) of a 79-year-old male patient with recurrent pre-syncope showed irregular sinus rhythm with constant PR interval and left bundle branch block (LBBB) with intermittently blocked P waves. The beat following the blocked P wave had a narrower QRS with a shorter PR interval. The phenomenon of bilateral bundle branch block explains the sudden improvement in the atrioventricular conduction.
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spelling pubmed-82633262021-07-16 Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism? Gupta, Anunay Bhargava, Kartikeya Bhasin, Dinkar Agstam, Sourabh Isser, Hermohander Singh Indian Pacing Electrophysiol J Case Report The 12-lead electrocardiogram (ECG) of a 79-year-old male patient with recurrent pre-syncope showed irregular sinus rhythm with constant PR interval and left bundle branch block (LBBB) with intermittently blocked P waves. The beat following the blocked P wave had a narrower QRS with a shorter PR interval. The phenomenon of bilateral bundle branch block explains the sudden improvement in the atrioventricular conduction. Elsevier 2021-05-08 /pmc/articles/PMC8263326/ /pubmed/33971284 http://dx.doi.org/10.1016/j.ipej.2021.05.001 Text en © 2021 Indian Heart Rhythm Society. Production and hosting by Elsevier B.V. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Case Report
Gupta, Anunay
Bhargava, Kartikeya
Bhasin, Dinkar
Agstam, Sourabh
Isser, Hermohander Singh
Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?
title Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?
title_full Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?
title_fullStr Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?
title_full_unstemmed Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?
title_short Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?
title_sort sudden unexpected improvement in the atrioventricular conduction. what is the mechanism?
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8263326/
https://www.ncbi.nlm.nih.gov/pubmed/33971284
http://dx.doi.org/10.1016/j.ipej.2021.05.001
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