Evaluation of 5 Days Holter and 30 Days Thumb-ECG for Detection of Atrial Fibrillation in Stroke Patients

Inclusion Criteria: * stroke or TIA within the last 3 months verified by a CT or a MR scan or unequivocal symptoms and old infarcts visualised on CT or MR * age 65 or above * patients able to handle the thumb-ECG * written informed consent Exclusion Criteria: * earlier diagnose of atrial fibrillation * pacemaker or ICD device * stroke induced by trauma, infection or surgery procedure * carotid stenosis of more than 60%