AustralasianversusUS Comparison of Rate vs. Rhythm Control Strategies in Paroxysmal AF < 48 hours with Low CHADS2 Score. Bar graph comparing percentages of rate vs rhythm control as 1st line management for a scenario of paroxysmal AF with symptoms <48 hours and low CHADS2 score. Australasian cardiologists and EPs were more aggressive with rhythm control strategies as compared with US counterparts. Abbreviations: AF, atrial fibrillation; EP, emergency medicine physicians; US, United States.