Evaluation of Prevalence and Clinical Impact of Atrial Fibrillation in Elderly Patients With Cryptogenic Stroke and High-Risk Patent Foramen Ovale

Exclusion Criteria

• •Transient ischemic attack
• •Lacunar infarction (infarction at subcortical area with a lesion diameter less than 2cm on MR)
• •Presence of complex aortic atheroma (≥4mm in plaque thickness or presence of mobile components)
• •Presence of ≥50% luminal stenosis (extra- or intracranial) in arteries supplying the ischemic area
• •Unwillingness or inability to comply with the procedures described in this protocol
• •Life expectancy \< 1 years for any non-cardiac or cardiac causes