Occult Paroxysmal Atrial Fibrillation in Patients With Non-cardioembolic Ischemic Stroke of Determined Mechanism

Inclusion Criteria

• •1. Age \> 50
• •2. Ischemic stroke, or transient ischemic attack with documented acute brain infarction, within prior 6 months.
• •3. Patient does not merit indefinite oral anticoagulation. (Patients requiring temporary OAC for purposes other than recurrent stroke prevention, such as treatment of a deep venous thrombosis, are eligible for enrollment if the long-term secondary stroke preventive strategy is anti-platelet therapy and not OAC).
• •4. Stroke mechanism is determined to be lacunar stroke, large vessel intracranial atherosclerosis, large vessel extracranial atherosclerosis, or a combination thereof.
• •5. Patient has been evaluated with at least a 12 lead EKG and at least one day of in-patient or out-patient cardiac telemetry, with no detection of AF or atrial flutter.
• •6. Detection of AF or atrial flutter would change secondary prevention antithrombotic strategy (eg to indefinite OAC).
• •7. Patient receives and successfully activates LifeStar ACT device.
• •8. Patient or legally authorized representative signs informed consent.