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Figure 2 The cumulative conversion progression to normal sinus rhythm (NSR) in the amiodarone and propafenone groups in relation to the significant predictors. It can be seen that patients with left atrial (LA) size 48 mm or duration of atrial fibrillation (AF) <3 months have a greater likelihood of converting within a shorter time. Furthermore, patients with left atrial size >48 mm or arrhythmia lasting >3 months start to convert late with both drugs.