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Intracardiac electrogram recordings (A) from the radiofrequency ablation catheter illustrating maximal His potential (arrows) and fluoroscopy location in the posterior–anterior (B) and left anterior oblique (C) views during left‐sided retrograde ablation.

Intracardiac electrogram recordings (A) from the radiofrequency ablation catheter illustrating maximal His potential (arrows) and fluoroscopy location in the posterior–anterior (B) and left anterior oblique (C) views during left‐sided retrograde ablation.

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Background: Catheter ablation of the atrioventricular node (AVN) is an effective treatment for patients with symptomatic atrial fibrillation. This study compares the success rate, procedure time, radiation time, and complication rates of retrograde left-sided (LSA) and anterograde right-sided (RSA) AVN ablation in a randomised controlled trial. M...