Strokes are classified as either hemorrhagic or ischemic. Acute ischemic stroke refers to stroke caused by thrombosis or embolism and is more common than hemorrhagic stroke. Cardiogenic emboli are a common source of recurrent stroke. They may account for up to 20% of acute strokes and have been repoed to have the highest 1- month moality. Thrombotic strokes are caused by in situ occlusions on atherosclerotic lesions in the carotid, veebrobasilar, and cerebral aeries, typically proximal to major branches. Embolus from the hea is a usual cause of stroke in people with hea disease.