Participants of the RACE 7 ACWAS trial
heart failure, myocardial infarction, Wolff‐Parkinson‐White syndrome, syncope
HEMODYNAMIC INSTABILITY, HEART FAILURE, MYOCARDIAL INFARCTION, SINUS SICK SYNDROME
Participants of the RACE 7 ACWAS trial were adult (>18 years old) patients who presented to the ED with recent‐onset symptomatic AF episodes lasting <36 h. Patients were excluded in case of signs of myocardial infarction or heart failure, hemodynamic instability, and a history of either sick sinus syndrome, Wolff‐Parkinson‐White syndrome, persistent AF or unexplained syncope.