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MedXY AI/MedXY News/Section: Cardiology

Vernakalant Beats Procainamide for Rapid ED Cardioversion of Recent-Onset Atrial Fibrillation: Results from RAFF4

MedXY Editorial Team•Nov 21, 2025•Cardiology
atrial fibrillationProcainamide

Highlights

– In the RAFF4 randomized clinical trial (n=350), vernakalant converted a greater proportion of patients to sinus rhythm within 30 minutes than procainamide (62.4% vs 48.3%; adjusted absolute difference 15.0%).

– Vernakalant achieved conversion faster (mean 21.8 vs 44.7 minutes) and reduced the need for attempted electrical cardioversion (33.7% vs 44.2%).

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This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.

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