A1 Refereed original research article in a scientific journal
Previously undescribed transient trifascicular block: left septal fascicular block associated with left anterior fascicular block and complete right bundle branch block
Authors: Nikus, Kjell; Rankinen, Jani; Virtanen, Raine; Birnbaum, Yochai; Perez-Riera, Andres Ricardo
Publisher: Elsevier BV
Publishing place: PHILADELPHIA
Publication year: 2025
Journal: Journal of Electrocardiology
Journal name in source: Journal of Electrocardiology
Journal acronym: J ELECTROCARDIOL
Article number: 154060
Volume: 92
Number of pages: 4
ISSN: 0022-0736
eISSN: 1532-8430
DOI: https://doi.org/10.1016/j.jelectrocard.2025.154060
Publication's open availability at the time of reporting: Open Access
Publication channel's open availability : Partially Open Access publication channel
Web address : https://doi.org/10.1016/j.jelectrocard.2025.154060
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/499496288
Self-archived copy's licence: CC BY
Self-archived copy's version: Publisher`s PDF
Exercise-induced complete right bundle branch block (CRBBB) remains a rare finding during a treadmill test. Both exercise-induced CRBBB and left anterior fascicular block (LAFB) have been associated with coronary artery disease, more specifically with stenosis of the left anterior descending coronary artery. Left septal fascicular block (LSFB) has been associated with acute and chronic coronary syndromes. We describe a patient case with severe left main coronary artery disease. In an exercise test, a rare combination of these three ventricular conduction disorders developed. In a second exercise test after coronary bypass surgery, LAFB and typical CRBBB developed without LSFB.
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Funding information in the publication:
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
