View clinical trials related to Epilepsy.
Filter by:Focused ultrasound (FUS) has been shown to differentially lesion or modulate (excite and inhibit) brain circuit and neural activity across a broad range of acoustic stimulus parameters (intensity, duty cycle, pulse repetition frequency and pulse duration) for decades. From our previous study, FUS sonication may suppress the number of epileptic signal bursts observed in EEG recordings after the induction of acute epilepsy. The presence of the suppressive effect was found in terms of the number of epileptic EEG spikes from the analysis of the unfiltered and theta-band EEG activity, and further discontinue the seizure attacks. EEG activity has also been consistently reported to have a positive correlation with the level of epilepsy, and FUS-mediated reduction of epileptic EEG activity was most notably observed, no matter lesioning or modulating effects. The aims of this study are to demonstrate the safety and efficacy of FUS technology in epilepsy patients and to estimate the optimal parameters of focused ultrasound exposure that will be used in the case of epilepsy.
Transcranial magnetic stimulation (TMS) uses electromagnetic induction as an efficient, painless, non-invasive method to generate a suprathreshold current at the level of the encephalon, and provide in vivo measurements of cortical excitability and reactivity at the level of the motor cortex (TMS-EMG) or the entire cortical mantle (TMS-EEG). This study proposes TMS measurements as a diagnostic tool in patients to understand mechanisms of epileptogenesis related to genetic mutations, and prognostic to guide and monitor precision treatments.
The Epilepsy Learning Health System (ELHS) is a quality improvement and research network to improve outcomes for people with epilepsy. The ELHS is designed as a model of value-based chronic care for epilepsy as envisioned by the National Academies of Medicine Committee in their landmark reports "The Learning Health System" and "Epilepsy Across the Spectrum: Promoting Health and Understanding". The ELHS network is a collaboration among clinicians, patients and researchers that promotes the use of data for multiple purposes including one-on-one clinical care, population management, quality improvement and research. The ELHS Registry includes data on children and adults with epilepsy collected during the process of standard epilepsy care. These data are used to create population health reports and to track changes in outcomes over time. ELHS teams use quality improvement methods, such as Plan-Do-Study-Act (PDSA) cycles, to continuously learn how to improve care.
We don't know a great deal about why some people develop seizures in adulthood, but some researchers think that it might tell us something about the brain. A small number of people with first seizure in adulthood go on to experience problems like stroke or dementia later in life. However, stroke and dementia are common diseases, so we don't know whether there is a real association between these conditions. When people develop their first seizure in adult life, this is sometimes called Late-Onset Epilepsy. Through the NeuroFrailty study, we will observe 'brain health' over the years following the onset of a seizure, and I hope that it might give us more information about people with these kinds of seizures. The NeuroFrailty study involves observing people from the time of diagnosis of first seizure. At this time, we will look at investigations such as blood tests, blood pressure, brain scans, alongside other diagnoses which might tell us whether there are differences compared to people without seizures. For some people, we will also look in greater depth at lifestyle including exercise, driving, family planning, and memory assessments. Over the following years, we will look at how things change: for example whether there are changes in memory, new diagnoses, medication changes and how lifestyle has changed. Because there is so little research in this area, it is very difficult to predict what might happen. For example, some people can experience worse memory because of medication side effects; on the other hand, good seizure control following a diagnosis can sometimes lead to improved memory. Over years, it may become clear that some diseases are more likely in people with late-onset epilepsy than in people without such a diagnosis. You will receive a yearly newsletter to keep you updated on everything we learn about late-onset epilepsy. Purpose and Background Most of the time, we do not know why an adult develops epilepsy. Some researchers think there may be a connection between epilepsy which starts in adulthood, and increased risk of stroke or dementia in the future. However, there is very little research or evidence in this area, so we cannot say whether this is true. What does taking part involve? This study is an observational study, which means that the management of participants' seizure disorder will not be affected if they choose to take part in this study. The purpose of this study is to watch participants over the course of several years, to find out more about seizures which start in adulthood. Participants can choose the level of involvement that is right for them. 1. LOW involvement. A researcher will check hospital and General Practice (GP records) once or twice per year, for the LIMITED AND SPECIFIC purpose of checking: medications, any new diagnoses, investigations associated with stroke risk (such as cholesterol, blood pressure, heart trace) and any brain scans that have been performed. I will not have access to more detailed information, such as conversations between a participant and their GP. 2. HIGH involvement. This involves being contacted by telephone once per year for 15-30 minutes to ask questions assessing memory and enquiring about lifestyle, such as exercise, smoking and alcohol use. 3. VERY HIGH involvement. These participants will be contacted for a longer telephone conversation 30-45 minutes once per year about their experience of how epilepsy has affected home life, work and medications. If someone decides in the future that they don't want to be involved, they can withdraw from the study. However, once the study is completely finished, the information will be completely anonymous, which means that I won't be able to find individual's information in order to delete it. Glossary Seizure disorder = any disorder which involved having experienced at least one seizure. First seizure and epilepsy both can be classed as a form of seizure disorder. Neurofrailty = A condition whereby a person is at risk of stroke or dementia.
To observe the clinical effect and safety of transcranial electrical stimulation on patients with refractory epilepsy before and after treatment and analyze its therapeutic mechanism.
The expression of hypokinetic and hyperkinetic motor symptoms is accompanied by pathological synchronous oscillations of neuronal activity in this cortico-subcortical network with a wide frequency range. The purpose of this research is to study cortico-subcortical oscillations and their synchronization in two pathologies emblematic of hypokinetic (Parkinson's disease) and hyperkinetic (epilepsies) phenomena using a simple motor task and comparing different situations.
To evaluate the different clinical and etiological patterns of epileptic syndromes in infants and early childhood.
The purpose of this study is to systematically evaluate the results of medical investigations to identify symptom and biological patterns and common etiologies of neurodevelopmental disorders.
Epilepsy is one of the most common neurological diseases, affecting between 0.5% and 1% of the general population. Therefore, new diagnostic and treatment methods are having a big impact on society. Epilepsy is also one of the most commonly diagnosed pediatric neurological disorders, with long-term implications for the quality of life of those affected and their relatives. In only two-thirds of cases, seizures can be adequately controlled with anticonvulsant drug therapy. For other patients with a drug-resistant focal epilepsy (up to around 2 million in Europe) epilepsy surgery is currently the most effective treatment. However, only 15-20% of these drug-resistant patients are eligible for epilepsy surgery. This is either because the cortical epileptogenic zone cannot be localized with sufficient precision with standard diagnostic means, or because the epileptogenic zone overlaps meaningful cortical areas, so that it cannot be surgically removed without considerable neurological deficit.
Currently, mapping the epileptogenic zone is based on a comprehensive preoperative assessment involving clinical, imaging and electrophysiological examinations. To reduce the need for invasive stereoelectroencephalography (SEEG) explorations, electrophysiological and imaging methods have been developed, such as resting-state functional MRI (fMRI) coupled with electroencephalogram and arterial spin-labeling perfusion MRI (ASL-MRI). It has been published that these new methods enable precise delineation of the epileptogenic zone and better preparation for surgery. The aim is to determine whether, in children with focal lesional epilepsy, the combination of ASL-MRI-EEG and resting-state fMRI-EEG enables precise identification of the epileptogenic zone to be defined by SEEG, the current reference examination.