Non-specific intraventricular conduction delay or atypical LBBB - How to predict acute coronary occlusion?

Autor: Nikus K; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; Heart Center, Department of Cardiology, Tampere University Hospital, Finland. Electronic address: kjell.nikus@tuni.fi., Ryödi E; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; Heart Center, Department of Cardiology, Tampere University Hospital, Finland., Pérez-Riera AR; Design of Studies and Scientific Writing Laboratory, Centro Universitário Saúde ABC, Santo André, SP, Brazil; Medical Clinic, Universidade Uninove campus Mauá, Mauá, SP, Brazil., Rankinen J; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
Jazyk: angličtina
Zdroj: Journal of electrocardiology [J Electrocardiol] 2022 Nov-Dec; Vol. 75, pp. 66-69. Date of Electronic Publication: 2022 Sep 21.
DOI: 10.1016/j.jelectrocard.2022.09.007
Abstrakt: We describe two patient cases with acute coronary syndrome (ACS) and broad QRS in the acute phase electrocardiogram (ECG). The patients' ECG findings resembled left bundle branch block (LBBB), but with atypical features. Broad QRS not fulfilling the criteria for LBBB or right bundle branch block (RBBB) is diagnosed as non-specific intraventricular conduction delay (NSIVCD). The case report deals with the challenges of predicting acute coronary occlusion in patients with NSIVCD in their acute phase ECG. In one of the cases, the ECG changed from typical LBBB to NSIVCD or atypical LBBB with the development of systolic dysfunction and clinical heart failure.
Competing Interests: Declaration of Competing Interest None.
(Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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