a transient ischemic attack (tia) is a transient stroke that lasts only a few minutes. it occurs when the blood supply to part of the brain is briefly interrupted. most symptoms of a tia disappear within an hour although they may persist for up to 24 hours. symptoms can include: numbness or weakness in the face arm or leg especially on one side of the body; confusion or difficulty in talking or understanding speech; trouble seeing in one or both eyes; and difficulty with walking dizziness or loss of balance and coordination.
what is a transient ischemic attack?