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Figure 2 A comparison between left atrial appendage flow velocities in sinus rhythm, pre–atrial fibrillation and immediately (0 min), 5 min and 10 min after cardioversion from brief atrial fibrillation in individual patients taking either amiodarone (squares) or sotalol (diamonds). There were no significant differences between velocities in sinus rhythm before atrial fibrillation and after cardioversion from brief duration atrial fibrillation in patients taking either amiodarone or sotalol. SR = sinus rhythm.