The drug was originally approved only to treat epilepsy patients who were already taking a seizure medicine.

Cyberonics estimates the potential market at 4.4 million Americans, or roughly 10 times the number of epilepsy patients that may benefit.

The sooner we're able to operate on those epilepsy patients who have failed drug therapy, the better.

Long-term drug therapy controls seizures in about 85 percent of epilepsy patients.

Reports by epilepsy patients that the treatment had a positive impact on their moods led the company to investigate it as a depression therapy.

Studies in the mapping of cerebral function began with epilepsy patients here more than sixty years ago.

They had been looking for factors associated with depression in epilepsy patients.

He found that in some cases, the epilepsy patients had a brain tumor which could be surgically removed.

According to one estimate, 14% of epilepsy patients are under 15 years old and approximately a quarter are over age 64.

Bilingual epilepsy patients may, during seizures, lose the ability to speak one language and not another.