Prognosis
PTS is associated with a generally good prognosis. It is unknown exactly how long after a TBI a person is at higher risk for seizures than the rest of the population, but estimates have suggested lengths of 10 to over 15 years. For most people with TBI, seizures do not occur after three months, and only 20–25% of people who suffer TBI have PTS more than two years after the injury. However, moderate and severe TBI still confer a high risk for PTS for up to five years after the injury.
Studies have reported that 25–40% of PTS patients go into remission; later studies conducted after the development of more effective seizure medications reported higher overall remission rates. In one quarter of people with seizures from a head trauma, medication controls them well. However, a subset of patients have seizures despite aggressive antiepileptic drug therapy. The likelihood that PTS will go into remission is lower for people who have frequent seizures in the first year after injury.
Read more about this topic: Post-traumatic Seizure