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 cut off 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 doctor 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.