The person may go home and have a seizure later that same day, but if their brain waves were normal during the 25-minute EEG, the EEG will be normal. A normal EEG does NOT rule out epilepsy. However, it is important to do an EEG because if abnormal electrical activity shows up, the physician will have an idea where in the brain the abnormal activity is coming from and what type of abnormal activity it is. Both of these factors may assist the physician in determining the best treatment. Yes sometimes after several years of successful treatment, epilepsy patients are able to stop taking their seizure medications and remain seizure free.
Some patients are more likely than others to successfully remain seizure free.