Strokes are classified as either ischemic or hemorrhagic. Ischemic strokes are caused by blockage of an artery. Hemorrhagic strokes are caused by bleeding in the brain....more
Stroke occurs when blood flow to the brain is disrupted. A blood clot can block one of the vital blood vessels in the brain or a blood vessel in the brain can burst, spilling blood into surrounding tissues....more
If you notice any of these symptoms, call 911 or your local emergency medical service immediately. Treatment for stroke is most effective when started as soon as possible....more
When an area of the brain is damaged, which typically occurs with a stroke, an impairment may result. An impairment is the loss of normal function of part of the body. Sometimes, an impairment may result in a disability, or inability to perform an activity in a normal way....more
Tests that may be used to help diagnose a stroke include a CT scan or MRI, and an electroencephalogram....more
The most important controllable risk factor for stroke is controlling high blood pressure. Blood pressure of 140/90 or higher can damage the arteries that supply blood to the brain....more
Arteriovenous malformations (AVMs) occur when a group of blood vessels in your body forms incorrectly. ...more
Carotid artery disease causes a narrowing of the major blood vessels that supply the brain. It is caused by atherosclerosis and can lead to a stroke.