The results can vary. For children with brain tumors or other lesions, this treatment may be a cure.
About half of patients with epilepsy become seizure free, sometimes within a week. This is about the same success rate as with open surgery, but with less risk. Some patients still have seizures, but they are less severe or happen less often. It may take up to a year to be sure the procedure worked. In some patients, seizures stop for a while but then come back.