Most strokes occur when the blood supply to a part of the brain is shut off or reduced, causing brain cells to die as they are starved of oxygen. These are called ischemic strokes, which account for about 80 percent of stroke cases. Ischemic strokes usually are caused by blockage of an artery in the brain from a blood clot. If the patient is brought to the hospital within several hours after symptoms begin, ischemic strokes usually can be effectively treated, either with medicine to dissolve the blood clot or by removing the clot with a thin tube called a catheter, or both.
Roughly 20% of strokes result from bleeding in the brain, known as hemorrhagic strokes. This bleeding usually is caused by high blood pressure, age, or ruptured or abnormal blood vessels in the brain. Hemorrhagic stroke patients usually need intensive care, and they also may need surgery to remove the clot or repair the blood vessel. Stroke can cause the loss of some or all functions controlled by the part of the brain that is damaged. Speech, movement, and memory are the functions most commonly affected by stroke, but the severity depends on which part of the brain was affected and how much damage occurred before receiving treatment. Recognizing stroke symptoms and seeking medical care immediately are crucial factors in preventing death and disability. Click here to learn more about the signs and symptoms of stroke.
Images and Videos
Depending on your case and your physician’s assessment, your condition may be treated using one or more various procedures. Some of those procedures are listed below for your convenience. Please note that this is not a comprehensive list and may vary depending on your specific diagnosis.