Research Article: Comparison of Efficacy and Safety Between Dronedarone and Amiodarone Used During the Blind Period in Patients with Atrial Fibrillation After Catheter Ablation
Abstract:
Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with a higher incidence of stroke, heart failure and mortality. Guidelines recommend catheter ablation (CA) for symptomatic paroxysmal atrial fibrillation who does not respond to antiarrhythmic drugs (AADs). Within months after of CA, patients often have recurrent AF due to pulmonary vein reconnection following resolution of inflammation. Therefore, the first three months after CA are referred to as the blanking period, also called the blind period. Oral antiarrhythmic medication is usually recommended during the blanking period to improve the surgical success rate and diminish AF recurrence. In China, amiodarone is the most commonly used drug for ventricular and supraventricular arrhythmias. However, its side effects, particularly extracardiac side effects, limit its widespread use. Dronedarone, which acts similarly to amiodarone, but has fewer side effects, has been used to maintain sinus rhythm after atrial fibrillation conversion. Dronedarone has attracted considerable attention since its emergence, and its efficacy and safety have been demonstrated in several large clinical trials including DAFNE, EURIDIS/ADONIS, ERATO and ATHENA. Currently, there are few comparative studies of dronedarone and amiodarone during the blanking period after CA. This study aimed to compare the effectiveness and safety endpoints of dronedarone and amiodarone in a real-world cohort of patients after AF ablation.
Introduction:
Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with a higher incidence of stroke, heart failure and mortality. Guidelines recommend catheter ablation (CA) for symptomatic paroxysmal atrial fibrillation who does not respond to antiarrhythmic drugs (AADs). Within months after of CA, patients often have recurrent AF due to pulmonary vein reconnection following resolution of inflammation. Therefore, the first three months after CA are referred to as the blanking period, also called…
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