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  • Title: A review of clinical trials assessing the efficacy and safety of newer antiarrhythmic drugs in atrial fibrillation.
    Author: Naccarelli GV, Wolbrette DL, Bhatta L, Khan M, Hynes J, Samii S, Luck J.
    Journal: J Interv Card Electrophysiol; 2003 Oct; 9(2):215-22. PubMed ID: 14574034.
    Abstract:
    Clinical trials assessing the efficacy of anti- arrhythmic drugs for terminating atrial fibrillation have demonstrated that rate control drugs have little to no added efficacy compared to placebo; however, spontaneous conversion of recent-onset atrial fibrillation is common. Antiarrhythmic drugs such as oral dofetilide, oral bolus-flecainide and propafenone and intravenous ibutilide all have a role in terminating atrial fibrillation. Active comparator trials have demonstrated that amiodarone is more efficacious in maintaining sinus rhythm than propafenone and sotalol. Multiple trials have demonstrated the safety of amiodarone, sotalol, dofetilide and azimilide in a post-myocardial infarction population and amiodarone and dofetilide in a congestive heart failure population. Newer antiarrhythmic agents, some with novel mechanisms of action, will add to the pharmacologic armamentarium in treating atrial fibrillation.
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