1. Stroke Unit Neurology Department and Medicine Department Vall d'Hebrón Hospital and Autonomous University of Barcelona Barcelona Spain
2. Arrhythmia Unit Cardiology Department Vall d'Hebrón Hospital Barcelona Spain
3. CIBER‐CV. Instituto de Salud Carlos III Madrid Spain
4. Neurovascular Research Laboratory Vall d'Hebrón Research Institute Barcelona, Spain
5. Stroke Unit University Hospital of Valladolid Valladolid Spain
6. Stroke Unit University Hospital Virgen del Rocio Sevilla Spain
7. Stroke Unit University Hospital Virgen Macarena Sevilla Spain
8. Echocardiography Laboratory Cardiology Department Vall d'Hebrón Hospital Barcelona Spain