PR prolongation with alternating wide and narrow QRS complexes: What is the mechanism?

Vincenzo RussoRita PezzellaLuigi Mauro Cantiello

Published in: Journal of arrhythmia (2024)

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.

Keyphrases

cardiac resynchronization therapy
heart failure
left ventricular
drug induced
neural network