Extreme Capsule Electrical Stimulation for Drug-resistant Focal Epilepsy

Exclusion Criteria

• •Structural alterations are present in the extreme capsule.
• •Diagnosed with generalized or hereditary epilepsy with ion channel gene mutations;
• •Psychogenic non-epileptic seizures within 12 months;
• •Presence of implanted electrical stimulation medical device anywhere in the body (e.g., pacemaker, spinal cord stimulator, responsive neurostimulation) or any metallic implants in the head (e.g., aneurysm clips, cochlear implants). Note: Vagal nerve stimulators are allowed if the parameter remains stable for at least 3 months prior to the screening visit;
• •Risk factors that would put the participant at risk for intraoperative or postoperative bleeding. (e.g., coagulation abnormalities, etc.) or the need for chronic anticoagulation or antiplatelet aggregation medications;
• •IQ \< 55 or severe cognitive dysfunction, unable to complete the study;
• •Diagnosed with a progressive neurological disorder (including progressive Rasmussen's encephalitis, etc.);
• •Diagnosed with a severe neuropsychiatric disorder such as dementia, major depression (admission to a psychiatric specialty/hospital within 5 years or any suicidal or self-injurious tendencies), schizophrenia, or neurodegenerative disorders;
• •Diagnosed with other serious physical disorders, internal diseases or severe abnormalities in liver or kidney function;
• •Pregnant, or planning to pregnant within 2 years;
• •Participation in another clinical study within 3 months;
• •Not suitable for enrollment as assessed by the multidisciplinary team of the center.