Level 3 Epilepsy Center. A third-level center should provide the basic range of medical, neuropsychological, and psychosocial services needed to treat patients with refractory epilepsy. Third-level medical centers provide basic neurodiagnostic evaluation, as well as basic medical, neuropsychological, and psychosocial services. These centers do not perform resective epilepsy surgery, although some may implant vagus nerve stimulators. Third level medical-surgical centers provide basic diagnostic and treatment services. In addition, these centers offer noninvasive evaluation for epilepsy surgery, straight-forward resective epilepsy surgery, and implantation of the vagus nerve stimulator. These centers do not perform intracranial evaluations or other more complex resective epilepsy surgery.
Level 4 Epilepsy Center. A fourth level center should provide the more complex forms of intensive neurodiagnostics monitoring, as well as more extensive medical, neuropsychological, and psychosocial treatment. Fourth-level centers also offer a complete evaluation for epilepsy, surgery, including intracranial electrodes, and provide a broad range of surgical procedures for epilepsy.