The Biomarkers of Neurological Disease in Utero Study
EpilepsyNeurodevelopmental Disorders2 moreAnti-epileptic drugs (AEDs) are potent teratogens associated with a spectrum of physical and neurodevelopmental anomalies to the exposed fetus. Particular risks include congenital malformations, impaired motor and cognitive functioning, autism and poorer educational attainment. Fetal exposure to drugs that bind to central nervous system targets as part of their therapeutic effect (e.g. neurotransmitter receptors and neuronal channels) appear to alter brain structure and function in both animal models and humans. Fetal magnetic resonance imaging offers an approach to investigate these effects in vivo, identifying biomarkers, defining the onset of abnormalities and dose response. Fetal MRI may offer risk stratification and identify patients that may benefit from intervention early in development. The overall aim of this study is to contribute to improving developmental outcomes following the inevitable exposure during treatment of maternal epilepsy. This novel study aims to explore the central nervous system with state-of-the-art non-invasive multimodal magnetic resonance imaging consistent with the University of Nottingham Precision Imaging Beacon, so as to improve outcomes in patients at risk of long term complex neuropsychiatric conditions.
Prevention of Epilepsy by Reducing Neonatal Encephalopathy
Neonatal EncephalopathyEpilepsy1 moreThe aim of the study is to examine if a pragmatic, evidenced based and generalisable intrapartum care bundle involving birth companions and empowering mothers will reduce birth injury-related epilepsy at 18 months of age in India. The care bundle will have four key elements (interventions): (1) birth companion providing constant 1:1 care during labour and early perinatal period; (2) fetal surveillance during active labour by a nurse or midwife using a graphic display Doppler; (3) labour management by an electronic partogram with an 'alert' and 'nag' feature based on the current WHO guidelines; (4) brain oriented early newborn care with resuscitation where indicated. The care bundle will be evaluated using a prospective interrupted time series design, recruiting 80,000 women delivering in one of the three participating centres in south India, over two years. Accurate baseline data will be collected during the first year and the optimised care bundle will be introduced during the second year. All full term newborn infants admitted to the neonatal unit with perinatal brain injury during both periods, will have detailed assessments including video electroencephalography, and magnetic resonance imaging, and will be followed up until 18 months of age. Primary outcome is the number of infants with epilepsy (categorised per current ILAE guidelines) at 18 months of age expressed as per 1000 term livebirths. The investigators will use a segmented logistic regression to divide the time series into pre- and post-intervention segments, with the intervention date as the intersection between segments. The difference in the two segments will be quantified using the level (step change) and slope (trend change). The total duration of the study is four years including 24 months of recruitment and 18 months of follow-up.
Social Cognition in Pediatric Epilepsy
Pediatric EpilepsyThe purpose of this study is to investigate the development of social cognition skills in pediatric epilepsy compared to healthy children. There are evidences indicating that children with epilepsy have executive dysfunctions and language problems. Executive functions refer to multiple cognitive processes that contribute to human higher order abilities, such as purposeful and future-orientated behavior. Moreover, the literature regarding development of non epileptic children, with ordinary development indicates that executive functions and language are linked to the emergence of social cognition. Then, the investigators asked if children with epilepsy, as they commonly present executive dysfunctions, would show an atypical development of social cognition. Children with epilepsy and a control group of healthy volunteers will be compared to identify relationships between executive functions, language and social cognition.
MEG Versus EEG HR for the Localization of the Epileptogenic Zone as Part of the Pre-surgical Assessment...
Drug-resistant EpilepsyCandidates for Surgical Treatment1 moreDrug-resistant partial epilepsies are disabling diseases for which surgical treatment may be indicated. The determination of the area to be operated (or 'epileptogenic zone') is based on a bundle of clinical arguments and neuroimaging, having a direct impact on surgical success. Epileptic patients have electrical abnormalities that can be detected with surface electrophysiological examinations such as surface EEG or MagnetoEncephalography (MEG). The intracerebral source of these abnormalities can be localized in the brain using source modeling techniques from MEG signals or EEG signals if a sufficient number of electrodes is used (> 100, so-called high EEG technique Resolution = EEG HR). EEG HR and MEG are two infrequent state-of-the-art techniques. The independent contribution of EEG HR and MEG for the localization of the epileptogenic zone has been shown in several studies. However, several modeling studies have shown that MEG and EEG HR have a different detection capacity and spatial resolution depending on the cortical generators studied. Modeling studies suggest that MEG has better localization accuracy than EEG for most cortical sources. No direct comparison of the locating value of MEG and EEG HR for the localization of the epileptogenic zone has been performed to date in a large-scale clinical study. In this prospective study, 100 patients with partial epilepsy who are candidates for epilepsy surgery, and for some of them with intracranial EEG recording, will benefit from two advanced electrophysiological examinations including magnetoencephalographic recording (MEG). ) interictal electrophysiological abnormalities and high-resolution EEG recording (128 electrodes) in addition to the usual examinations performed as part of the pre-surgical assessment, prior to cortectomy and / or intracranial EEG recording. Based on recent work conducted in humans, we postulate: that the MEG and the EEG HR make it possible to precisely determine the epileptogenic zone, by using two approaches of definition of the epileptogenic zone (zone operated in the cured patients, zone at the origin of the crises during the intracranial recordings), but that the MEG is a little more precise than the EEG HR for the determination of the epileptogenic zone (we will try to highlight a difference of about 10%) that the quantitative study of the complementarity between EEG HR and MEG for modeling sources of epileptic spikes will show an added value in the use of both methods compared to the use of only one of the two methods that it is possible to determine the epileptogenic zone by determining the MEG model zone having the highest centrality value (hub) within the intercritical network by studying networks using graph theory.
A Cohort Study on the Prognosis of Neonatal KCNQ2 Gene-associated Epileptic Encephalopathy
SeizuresSeizure Disorder9 moreThe researchers hope to explore the etiological distribution and influencing factors of KCNQ2-related neonatal convulsions or refractory epileptic encephalopathy, and to improve the level of assessment, identification, intervention and shunt of KCNQ2-related convulsions. To formulate countermeasures and measures for prevention, management and health education.
Auditory Stimulation Effects on Sleep and Memory in Patients With Epilepsy
EpilepsyThis study will investigate the role of coordinated brain rhythms during sleep in memory consolidation and determine whether playing precisely timed brief bursts of noise can enhance these rhythms and improve memory in epilepsy inpatients with implanted hippocampal electrodes.
EPC Performance Investigation for StereoElectroEncephaloGraphy
EpilepsyThe objective of this multicentre study is to collect preoperative, intra operative, early, short, intermediate and mid-term(one years) on the related clinical complications and functional outcomes of market-approved Alcis products to demonstrate safety and performance of these devices in a real-world setting.
A Prospective, Remote Observational Study in Pediatric Participants With Early-Onset SCN2A-Developmental...
SCN2A-DEEEpilepsyThis prospective observational study is designed to assess the individualized baseline disease burden in pediatric participants aged 1 year to 16 years, with early-onset SCN2A-DEE by characterizing and quantifying changes in clinical features over a period of up to 12 months.
Sleep Spindles and Memory in Rolandic Epilepsy
Rolandic EpilepsyRolandic Epilepsy6 moreThe investigators are recruiting children with Rolandic epilepsy and children without epilepsy (aged 4 years old and above) for a non-invasive brain imaging study using Magnetic Resonance Imaging (MRI), Magnetoencephalography/Electroencephalography (MEG/EEG), and experimental tasks. The investigators hope to determine the brain circuits and brain rhythms affected in these children and ultimately identify new treatment options for childhood epilepsy patients.
Adherence to Pharmacological Antiepileptic Treatment in Adolescence
EpilepsyTreatment AdherenceEpilepsy and its drug treatment affect fundamental aspects of an adolescent's lifestyle and can have major consequences on self-esteem and sense of identity. For many adolescents it is difficult to live with epilepsy and medication is difficult to accept; the side effects of medication, in particular even small changes in mental status and somatic appearance, are particularly feared and poorly tolerated. While it is true that drug-resistant epilepsies exist (about 30% of cases), it is also true that there exists a pseudo-resistance to drug treatment which is due to inadequate administration or poor adherence to treatment. It is estimated that 21 to 42% of patients on antiepileptic treatment don't adhere to the prescribed therapy. The literature emphasizes that non-adherence to treatment is a crucial problem for people with epilepsy, and that the adolescent population is particularly at risk. As with any chronic drug therapy, the therapeutic relationship plays an important role in the treatment of epilepsy. In adolescence, the communication that occurs within the therapeutic relationship takes on peculiar and specific aspects that go beyond the acquisition of anamnestic data and of what is usually reported explicitly in the interview. Communication must be centered on the adolescent's need for independence. Appropriate communication can make the adolescent feel more supported and can encourage him or her to gain self-awareness and control on decisions regarding his or her illness. For the physician, knowledge of the adolescent's point of view is indispensable in order to provide all the necessary information in an appropriate, understandable, and acceptable way, while at the same time acting as a mediator of communication. The objective of this project is to describe and analyze adolescents' perception of antiepileptic treatment, their awareness of the disease and of the need for drug treatment.