View clinical trials related to Epilepsy.
Filter by:The retrospective pre-post observational study was conducted to evaluate the real-world evidence of efficacy and tolerability of generic levetiracetam (oral tablet) which was switched from original levetiracetam (oral tablet) in patients with epilepsy at the national hospital for neurology and neurosurgery in Thailand. Epilepsy patients who received generic substitution to original levetiracetam at the same dose and had stable conditions of seizure were only included. In the period of 6 months, the investigators assessed the change of seizure frequency, the incidence of hospitalization due to breakthrough seizure, the incidence of adverse events and the incidence of composite outcomes related to dosage adjustment of antiepileptic drugs.
This is a long-term, prospective, interventional study to investigate the role and prevalence of subclinical epileptiform activity in the hippocampus in patients with mild cognitive impairment (MCI) due to Alzheimer's disease (AD). The investigators would like to investigate whether subclinical epileptiform activity in the hippocampus is more prevalent in patients with MCI, compared to healthy controls and to evaluate its effects on cognitive decline. Evolution of cognitive decline will be assessed over a time period of two years.
This study evaluates a mindfulness intervention in patients with drug resistant epilepsy. Half of participants will follow a mindfulness programme, while the other half will follow a self management programme.
Perampanel is a drug used to treat patients with epilepsy/seizures. This study is designed to determine how much perampanel actually crosses the blood brain barrier into the cerebral spinal fluid when the drug is taken.
Hypotheses: The treatment of epilepsy during pregnancy is difficult because of the risk of anti-epileptic drugs on the one hand and the risk of destabilization of epilepsy in the mother on the other hand. There is limited data on the pharmacokinetics (concentration study) and pharmacodynamics (efficacy and toxicity effects study) of levetiracetam in pregnant women. The few studies focus on few women and show very strong interindividual variability and a tendency to decrease total concentrations. Main objective: To develop a population pharmacokinetic model of levetiracetam during pregnancy. After the study, this model could be used to propose dose adjustments to maintain stable concentrations in pregnant women throughout pregnancy. Secondary objectives: - Describe placental transfer during childbirth and during a medical termination of pregnancy - Link the concentration and its variation in the individual to the effects of treatment
This study investigates the effect of lactate infusion on epileptic discharges on EEG and seizure frequency in glucose transporter 1 deficiency syndrome (GLUT1DS) patients.
Epilepsy is the second commonest chronic neurological disorder in developed countries, Comorbidity refers to the co-occurrence of two conditions with a greater frequency than found in the general population
In this study, the investigator aims to perform cortical stereo electroencephalogram (sEEG) recordings during simultaneous anterior nucleus of the thalamus (ANT) recording and stimulation to better understand the following: 1) how the ANT is involved in various seizure types; 2) which cortical regions are modulated by established ANT stimulation patterns; and 3) how novel ANT stimulation patterns modify epileptogenic cortical activity. Together, this knowledge will advance ANT deep brain stimulation (DBS) therapy by providing a physiologic basis for patient selection for ANT DBS, while identifying brain signals and stimulation patterns that can be used to develop novel methods for ANT DBS. Up to 15 adult patients (18 and older) who present to Duke Neurosurgery for routine seizure localization using sEEG will be asked to enroll in this pilot study of ANT recording and stimulation. In the course of surgical epilepsy treatment, patients routinely undergo surgical placement of sEEG electrodes for the purposes of seizure localization. During this procedure, 2 additional leads will be placed in the ANT. These patients remain hospitalized for 7-14 days after sEEG placement, during which time their seizure medications are tapered. Concurrent video monitoring is performed while continuous neural recordings are made through the sEEG electrodes. Additionally, continuous recordings will be performed through the electrodes placed in the thalamus. Periodically, standard intermittent high-frequency stimulation (130 Hz, 90-ms pulse width, and 2 mA intensity) will be performed with a 60-s on and a 300-s off cycle after surgery. These standard ANT stimulation parameters are employed clinically. Data will include the sEEG recordings marked for ANT stimulation, any side effects, medications, past medical history (PMH), and tests/procedures during the hospital stay. Risks involved are as described for the standard depth electrode surgery with the addition of the possible side effects from the stimulation which include sensations of numbness and tingling, and possibly increased seizure activity.
This is a research study to investigate whether the use of an extra function of vagus nerve stimulator (VNS) can give an improved effect against epilepsy. Many epileptic seizures are accompanied by an increase in heart rate. One auxiliary function of a new type of stimulator is continuous measurement of cardiac activity, and when pulse rate increases an extra stimulation is delivered. It has been shown that this can interrupt attacks that are about to develop. In this project the investigators will test how well that works for patients in daily life. The new type of stimulator has similar design and location as the old one. Patients who have already been treated with VNS and who need to switch the stimulator because the battery is starting to run out, are asked whether they want to participate. The study is a randomized and blinded cross-over. The activation of the extra feature is done either in the first or the second treatment phase. Which phase is the phase with activated autostimulation will be decided by random selection and the patient does not know when the auxiliary function is started. The study period is 11 months. Patients are asked to fill in some questionnaires on seizures, quality of life and quality of sleep.
Background: - Epilepsy is a seizure disorder. Sometimes it is treated with surgery. During surgery, electrodes are placed on or in the brain. Researchers want to learn more about memory and the brain. They want to do tests on people who are having epilepsy surgery. Objective: - To learn more about memory and brain function by recording brain cell activity during memory tasks. Eligibility: - Adults age 18 - 65 who have medically intractable epilepsy and will have electrodes placed to identify the source of their seizures. They must be currently enrolled in protocol 11-N-0051. Design: - Participants may do memory tests before the electrodes are put in, while they are in place, and after surgery. Researchers may stimulate areas of the brain with small pulses of electricity. - Researchers will start recording brain activity at least 12 hours after electrodes are placed. They will record while participants are awake and asleep. They will record before, during, and after seizures. - Participants may have up to 3 testing sessions daily over the 1-3 weeks the electrodes are in place. Each session will last 20-60 minutes. - Participants will play games on a laptop. Sometimes they may use a button or joystick. This can be done in bed in the hospital. - Participants may be given a list of words and asked to recall them in a short time. - Participants may be given pairs of items and asked to remember how they are related. - Participants may be asked to learn their way around a virtual town on the computer. Their eye movements may be tracked by a small camera.