Prognostications of fibrillations.

Response to Letter Regarding Article, “Prognostications of Fibrillations” We thank Dr Sanna et al for their interest in our review. The sentence to which they refer should have indeed read, “Cryptogenic Stroke and Underlying Atrial Fibrillation (CRYSTAL AF) followed a small number of patients out to 3 years; the rate of atrial fibrillation was 30% in those with the implanted cardiac monitor and 3% in those who had routine monitoring.” We apologize for the error and appreciate the contributions that the CRYSTAL AF study has given to the understanding of atrial fibrillation after stroke.