PR prolongation with alternating wide and narrow QRS complexes: What is the mechanism?
Vincenzo Russo1, Rita Pezzella2, Luigi Mauro Cantiello1
1Cardiology Unit, Department of Medical Translational Sciences University of Campania "Luigi Vanvitelli" - Monaldi Hospital Naples Italy.
Journal of Arrhythmia
|June 28, 2024
Abstract:
The alternating wide and narrow QRS complexes following prolonged PR interval is a challenging issue. The scalar diagrams with the graphic representation of the electrical events and the careful analysis of their temporal relationship can help to better understand the surface electrocardiogram.
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