Short-Term Versus Long-Term Antiarrhythmic Drug Treatment After Cardioversion of Atrial Fibrillation (Flec-SL): A Prospective, Randomized, Open-Label, Blinded Endpoint Assessment Trial

Study Questions:

Is short-term treatment for 4 weeks with flecainide as effective as long-term treatment with flecainide for 6 months for preventing recurrent atrial fibrillation (AF) after cardioversion?