Epilepsy, Temporal Lobe
Conditions
Brief summary
We intend to use focused ultrasound to stimulate or suppress brain activity in patients with epilepsy. We hypothesize that focused ultrasound is capable of brain stimulation or suppression visible with functional MRI, and will not cause tissue damage.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* Subjects with clinical evidence from their diagnostic evaluations of unilateral hippocampal dysfunction and epileptogenicity. * Subjects with seizures that have been refractory to treatment with at least three currently marketed antiepileptic drugs. * Subjects with epilepsy who would clearly benefit from surgical intervention. * Subjects who have been offered a non-dominant anterior-mesial temporal lobe resection as treatment for medication refractory epilepsy.
Exclusion criteria
* Subjects with a cognitive or psychiatric disorder that limits the ability to give informed consent or are unable to cooperate with the testing. * Subjects with dementia, delirium and psychotic symptoms. - Subjects with ferromagnetic materials in the head. * Subjects with severe cardiac disease, increased intracranial pressure, or a TENS unit. * Subjects who exhibit primary generalized seizures or pseudoseizures. * Subjects who have seizures secondary to drugs, alcohol, metabolic illness or progressive degenerative disease. * Subjects who have experienced status epilepticus during the 3-week baseline period prior to the operation. * Subjects (females) who are pregnant.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Absence of histological changes | 7 days |
Secondary
| Measure | Time frame |
|---|---|
| Beck Depression Inventory changes | 1 day |
| Neuropsychiatric changes | 1 day |
| Neurological changes | 1 day |
| Seizure frequency changes | 6 days |
| Brief Symptom Inventory changes | 1 day |
Other
| Measure | Time frame |
|---|---|
| Change in epileptiform discharge % | Same day |
| Change in epileptiform discharges | Same day |
| Change in BOLD signal | Same day |
Countries
United States