RT Journal A1 Bollu M, Bobba RK, Arsura EL T1 TReatment with amiodarone to prevent atrial fibrillation JF JAMA JO JAMA YR 2009 FD March 11 VO 301 IS 10 SP 1019 OP 1020 DO 10.1001/jama.2009.263 UL http://dx.doi.org/10.1001/jama.2009.263 AB To the Editor: There are several items that could clarify the outcomes and conclusions of the study of amiodarone in patients with atrial fibrillation by Dr Ahmed and colleagues.1 It would be helpful to understand whether the patients in the study were receiving or had received alternative antiarrhythmic drugs during the initial screening and, if they had received other agents, whether those agents were discontinued before starting amiodarone. It is not clear if patients with coronary artery bypass grafting or patients with postoperative atrial fibrillation were included in the study. Further explanation would be useful regarding how patients who experienced a recurrence of asymptomatic atrial fibrillation were detected other than during the visits.