A Holter tracing showing transition from narrow QRS to wide QRS after a premature ventricular complex (PVC) during sinus rhythm is presented with explanation of the likely underlying mechanism. Copyright © 2022 Elsevier Inc. All rights reserved.
Rakesh Dubba, Rakesh Sarkar, Kartikeya Bhargava. Transition from narrow to wide QRS complex during sinus rhythm: What is the mechanism? Journal of electrocardiology. 2022 May-Jun;72:88-90
PMID: 35390707
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