Cardiac Arrhythmias 2005; 95-100 Abstract It is accepted that pharmacological treatment of recent-onset atrial fibrillation (AF) in order to reset sinus rhythm restoration, if effective and safe, is doubtless the favourite approach, since it is preferred by patients over electrical cardioversion. Nonetheless, it must be remembered that the placebo effect is very consistent (> 50% at 12–24 h) for AF…