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90 vs 50-Watt Radiofrequency Applications for Pulmonary Vein Isolation: Experimental and Clinical Findings.

Agustín Alfonso BortoneJean-Paul AlbenqueF Daniel RamirezMichel HaïssaguerreStéphane CombesMarion ConstantinGuillaume LaborieGuillaume Brault-NobleEloi MarijonPierre JaisThomas Pambrun
Published in: Circulation. Arrhythmia and electrophysiology (2022)
Experimentally, using the QDOT-MICRO catheter, 90 W-4 seconds lesions are mostly transmural in the thin-walled right atrium of swine (median depth 1.87 mm) with a moderate lesion diameter of 6.62 mm but retain the potential for collateral damage. Clinically, 90 W-4 seconds applications are associated with a lower first-pass PVI rate and a higher acute PV reconnection rate than 50 W applications but similar safety outcomes and effectiveness at 1 year.
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