Testing a Novel Dry Electrode Headset for Electroencephalography Telehealth
EpilepsyThis study will improve access of Veterans with epilepsy living in rural areas to the most important diagnostic procedure for the care of patients with epilepsy: the routine electroencephalogram (EEG). The investigators will test a new method for recording EEG which uses a novel dry electrode system headset that does not require an EEG technologist to operate. The headset integrates the EEG electrodes and amplifier into a compact system which is easily placed on the head. This approach could make it possible for a nurse or nurse assistant with minimal training to record an EEG in a rural community based outpatient clinic (CBOC) as part of an epilepsy telemedicine outreach program along with clinical interviews. The investigators will compare performance of this dry electrode system to standard EEG when it is used by EEG technologists in three VA medical centers. This project has the potential to improve access of Veterans to the EEG procedure and decrease cost to the Veterans Health Care System.
Healthy Aging in People With Epilepsy Program
EpilepsyThe goal of this clinical trial is to develop and test an educational program about dementia in older adults living with epilepsy. The main questions it aims to answer are: Can providing education on healthy aging, chronic disease management, dementia, and modifiable lifestyle dementia risk factors improve dementia knowledge and health literacy among older adults with epilepsy? Can aging related education and resources improve quality of life among older adults with epilepsy? Participants will: Complete a 12-week group educational program. Complete pre- and post-program evaluation.
High-density EEG in Neurological Disorders
EpilepsyTumor1 moreThe purpose of the study is to use a new method of high-density electroencephalogram (HD-EEG) recording to map brain areas important for movement, sensation, language, emotion, and cognition.
Bridging the Childhood Epilepsy Treatment Gap in Africa
EpilepsyAbout half of the world's children with epilepsy do not receive treatment - known as the epilepsy treatment gap - with significantly higher rates (67%-90%) in low- and middle-income countries (LMICs). We will conduct the first cluster-randomized clinical trial (cRCT) to determine the efficacy, implementation, and cost-effectiveness of a novel intervention shifting childhood epilepsy care to epilepsy-trained community health extension workers in an effort to close the epilepsy treatment gap. This research will provide information to help extend epilepsy treatment to children in LMICs and worldwide who suffer from untreated seizures.
Bioequivalence Study of Sodium Valproate and Valproic Acid Tablets
EpilepsyBioavailability is the extent and rate to which the active drug ingredient or active moiety from the drug product is absorbed and becomes available at the site of drug action. Bioavailability of an active substance delivered from a pharmaceutical product should be known and reproducible. In the past, several therapeutic misadventures related to differences in bioavailability affirm to the necessity of testing the performance of dosage forms in delivering the active substance to the systemic circulation and thereby to the site of action. If there is no clinically significant difference in the bioavailability of two medicines they are considered to be bioequivalent. The bioavailability and bioequivalence studies of various drug candidates have been routine regulatory requirements in many countries for licensing of the drug product. Department of Drug Administration, Ministry of health and Population has encouraged Nepalese Pharmaceutical Industries legally to submit pharmacokinetic data where possible for licensing purpose for certain drug candidates and their dosage forms. The comparative in-vivo bioequivalence study is necessary for those products which have low therapeutic index, low bioavailability, non-linear kinetics, poor dissolution profile, variable bioavailability and/or bioequivalence. Department of Drug Administration necessitated bioequivalence and bioavailability study for the modified release dosage form of those drug molecules whose blood steady state concentration is of great importance, e.g. sodium valproate, valproic acid, carbamazepine, antibiotics etc. Considering the need to confirm safety and effectiveness of the medications and also for the regulatory requirement, this study to assess the bioequivalence of sodium valproate and valproic acid extended release tablet manufactured by a Nepalese pharmaceutical company, Asian Pharmaceuticals Pvt. Ltd., with an innovator formulation is being carried out in healthy human volunteers.
Novel Network Analysis of Intracranial Stereoelectroencephalography
Epilepsy in ChildrenFocal Epilepsy7 moreEpilepsy is a disorder of the brain which is associated with disabling seizures and affects 100,000 people under 25. Many children with epilepsy also have a learning disability or problems with development. Although better outcomes occur in children who are successfully treated early for their epilepsy, 25% continue to have seizures despite best medical treatment. One potential treatment is a neurosurgical operation to remove parts of the brain that generate seizures. A proportion of these children have electrodes inserted into their brains as part of their clinical assessment, termed stereoelectroencephalography (SEEG), to help localise these regions. Subsequent surgery is not always successful - up to 40% of children will have ongoing seizures 5 years after surgery. The purpose of this study is to assess the utility of specially designed SEEG electrodes which can measure signals from single brain cells. These electrodes record the same clinical information as normal SEEG electrodes and are implanted in the same way, but can give the research team extra information at the same time. The investigators aim to assess whether studying the changes in the firing of individual cells, both during and between seizures, improves our ability to localise seizures and therefore improve outcomes following surgery. As part of this research project, the investigators will not be doing anything that is not already part of the normal investigation and treatment for these children. Children will be recruited to the study during routine outpatient clinic visits. Surgical planning and execution will not be affected. The electrodes are CE licensed for clinical use and do not alter the risks of the operation. Following the period of monitoring, the care of these children would not be altered in any way. The investigators aim to recruit 30 patients over 3 years. In addition to dissemination via scientific publications and presentations, the findings will be shared with participants and the public.
Direct Cortical Measurement of the Intensity and Pattern of Current Flow Produced by TDCS
EpilepsyThe primary study objective is to measure the electrical fields evoked by tDCS using subjects who have implanted intracranial electrodes as part of their evaluation for epilepsy surgery. The measurements obtained in these subjects and their brain MRI will be employed to validate existing mathematical models. In the future, these refined models can be used to target tDCS to predetermined brain regions in healthy and subjects and patient populations. As described above in the safety section, the intensities of stimulation applied in this project are not expected to produce changes in brain function, are below intensities commonly applied in clinical trials, and fall well below safety limits suggested by animal studies.
Digital Solution to Improve Cognitive Function in Epilepsy: PRODDIGE Project
Cognitive ChangeBackground: Epilepsy leads to cognitive impairment in 20-50%. Compared to seizures, these cognitive disorders are a major additional factor in occupational, social and family disability. Memory and language skills are most often impaired. These disorders are well described, multifactorial, but no therapy (drug and/or non-drug) has been validated to date. Recently, cognitive remediation techniques have shown benefits in certain neurological pathologies, such as multiple sclerosis. In adult epilepsy, few previous cognitive remediation studies were performed but suffer significant methodological shortcomings that limit the scope of their results. Studies that have focused on cognitive function have shown promising results for attention and memory. In contrast, in the area of language, no studies have been published. Objective: to evaluate the effectiveness of a digital solution (PRODDIGE*) on the lexical access capacities in people with epilepsy. Method: Randomized, multicentric, observational study which will compare the use of a digital solution (PRODDIGE) in total autonomy versus the supervised use by a trained neuropsychologist. A neuropsychological assessment will be provided before and after a period of 4 months of use of the digital solution. Material: The medical project aims to offer an application of cognitive remediation to patients who suffer from cognitive impairments and especially language disorders. T The App is like a serious game, it's based on the playfulness of "game" and the seriousness of "medical exercise". During the exercise the patient can ask for clues help and isn't constrained by time in order to succeed "his mission". Conclusion: This will be the first French speaking app specifically dedicated to rehabilitation of language deficits observed in people with epilepsy. The expected benefits are an improvement of the patients' language complaints, the regular use of an adapted digital solution to improve their language difficulties, but also a better understanding of their disorders and an improvement of their self-esteem.
PRediction of Vagal Nerve Stimulation EfficaCy In Drug-reSistant Epilepsy
Drug Resistant EpilepsyVagal nerve stimulation (VNS) can be indicated in patients with drug-resistant epilepsy who are not eligible for resective epilepsy surgery with responders rates about 50% (≥50% seizure reduction). At the moment, there is not a widely-accepted possibility to predict VNS efficacy in a given patient based on pre-implantation data, which can lead to unnecessary surgery and improper allocation of financial resources. The principal aim of PRECISE (PRediction of vagal nerve stimulation EfficaCcy In drug-reSistant Epilepsy) study is to verify the predictability of VNS efficacy by analysis of pre-implantation routine EEG. The PRECISE relies on the results of our previous work, which developed a statistical classifier for VNS response (responders vs. non-responders) based on differences in EEG power spectra dynamics (Pre-X-Stim). PRECISE is designed as a prospective multicentre study in which patients indicated to VNS therapy will be recruited. Patients will be classified as predicted responders vs. predicted non-responders using pre-implantation EEG analyses. After the first and the second year of the study, the real-life outcome (responder vs. non-responder) will be determined. The real-life outcome and predicted outcome will be compared in terms of accuracy, specificity, and sensitivity. In the meantime, the patients will be managed according to the best clinical practice to obtain the best therapeutical response.
Low-intensity Focused Ultrasound Pulsation (LIFUP) for Treatment of Temporal Lobe Epilepsy
EpilepsyTemporal LobeWe 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.