Less often it may result from a blood vessel defect present since birth. The symptoms of a stroke differ, depending on the part of the brain affected and the extent of the damage. TIAs occur when the blood supply to the brain is reduced for a short time without causing permanent damage. A TIA is sometimes referred to as a ministroke because it causes the same symptoms as a stroke but the symptoms go away within minutes to a few hours. Call 911 if you see or have any of these symptoms.
Treatment can be more effective if given quickly.
Every minute counts. If symptoms of a stroke occur, someone should call an ambulance or take you to an emergency room right away. Your health care provider will know from your symptoms and physical exam whether you are having a stroke. It is important to get to the hospital as soon as possible if you suspect a stroke. Many large hospitals are now treating strokes caused by blood clots with clot-dissolving medicines.