Acute Effects of Focused Ultrasound Modulation on EEG Behavior in Status Epilepticus Patients
Yale University
Summary
In this study, the investigators propose Pulsed Low-Intensity Focused Ultrasound (PLIFU) stimulation of brain regions that modulate (thalamus) or generate focal motor seizures (primary motor cortex), with the goal of ameliorating seizure activity in subjects in non-convulsive or focal motor status epilepticus. The course of treatment will consist of an initial 10 minute PLIFU treatment session with an option for a 2nd session if necessary. The primary objective of this study is to determine whether PLIFU reduces or suppresses epileptic activity in patients with Non-Convulsive Status Epilepticus (NCSE)/Focal Motor Status Epilepticus (FMSE) that have not responded to standard of care.
Description
This study proposes to sonicate epileptic zones or circuits at the bedside with a custom built PLIFU device in two groups of participants experiencing non-convulsive seizures while treated in the Intensive Care Unit (ICU): 1) non-convulsive SE or 2) focal motor Status Epilepticus (SE), targeting the thalami or motor cortical areas responsible for generating ictal activity, respectively. PLIFU modulation is non-ablative, nonionizing, and noninvasive, while it also preserves the integrity and function of brain tissue. The aim is to quantify ictal and interictal EEG before, during, and after son…
Eligibility
- Age range
- 19–85 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Subjects diagnosed with ongoing NCSE or FMSE despite treatment with at least 2 ASMs * Provision of signed and dated informed consent form obtained from the next-of-kin/legally authorized representative * Treated in the ICU while monitored with continuous scalp EEG electrodes Exclusion Criteria: * Unable to obtain informed consent * Presence of an implanted cranial neuromodulation device for treatment of epilepsy * Pregnancy * Treatment with another investigational drug or other intervention within 24 hr * Presence of burr hole(s) or craniotomy * Subjects with ferromagn…
Interventions
- DevicePLIFU
Participants will be treated with up to 2 sessions of PLIFU (on the same day), while monitored with surface EEG and will be observed for the remainder of the hospital stay as deemed by the primary care team. The system non-invasively delivers ultrasound sonications intracranially that selectively target specific areas of the brain.
Location
- Yale New Haven HospitalNew Haven, Connecticut