Background: There is little evidence concerning the impact of acute heart failure (AHF) on the prognosis of atrial fibrillation patients attending the emergency department (ED).
Objective: To know the influence of AHF on adverse long-term outcomes in patients presenting with atrial fibrillation in ED.
Design, Setting And Participants: Secondary analysis of a prospective, multicenter, observational cohort of consecutive atrial fibrillation patients, performed in 62 Spanish EDs.