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Objective
Paroxysmal epileptiform abnormalities on electroencephalography (EEG) are the hallmark of epilepsies, but it is uncertain to what extent epilepsy and background EEG oscillations share neurobiological underpinnings. Here, we aimed to assess the genetic correlation between epilepsy and background EEG oscillations.
Methods
Confounding factors, including the heterogeneous etiology of epilepsies...
Objective
To study the association between timing and characteristics of the first electroencephalography (EEG) with epileptiform discharges (ED‐EEG) and epilepsy and neurodevelopment at 24 months in infants with tuberous sclerosis complex (TSC).
Methods
Patients enrolled in the prospective Epileptogenesis in a genetic model of epilepsy – Tuberous sclerosis complex (EPISTOP) trial, had serial EEG...
Objective
The most common reported seizure‐precipitant is stress. We recently showed a biologic basis for stress sensitivity of seizures: cortisol levels in people with stress‐sensitive epilepsy correlated with focal interictal epileptiform discharges (IEDs) on electroencephalography (EEG). Here we aimed to determine whether the effect of cortisol on the epileptic brain is global or focal, and whether...
This companion paper to the introduction of the International League Against Epilepsy (ILAE) 2017 classification of seizure types provides guidance on how to employ the classification. Illustration of the classification is enacted by tables, a glossary of relevant terms, mapping of old to new terms, suggested abbreviations, and examples. Basic and extended versions of the classification are available,...
The International League Against Epilepsy (ILAE) presents a revised operational classification of seizure types. The purpose of such a revision is to recognize that some seizure types can have either a focal or generalized onset, to allow classification when the onset is unobserved, to include some missing seizure types, and to adopt more transparent names. Because current knowledge is insufficient...
We aimed to study serum cytokine levels in 11 electrical status epilepticus in sleep (ESES) patients and 20 healthy control children. Patients showed significantly higher levels of interleukin (IL)‐1α, IL‐6, IL‐10, chemokine (C‐C motif) ligand (CCL)2 and chemokine (C‐X‐C motif) ligand (CXCL)8/IL‐8 than controls, while macrophage migration inhibitory factor (MIF) and CCL3 were significantly lower....
ObjectiveEpileptic encephalopathy with electrical status epilepticus in sleep (ESES) is a pediatric epilepsy syndrome with sleep‐induced epileptic discharges and acquired impairment of cognition or behavior. Treatment of ESES is assumed to improve cognitive outcome. The aim of this study is to create an overview of the current evidence for different treatment regimens in children with ESES syndrome...
Focal cortical dysplasia is a common cortical malformation and an important cause of epilepsy. There is evidence for shared molecular mechanisms underlying cortical dysplasia, ganglioglioma, hemimegalencephaly, and dysembryoplastic neuroepithelial tumor. However, there are no familial reports of typical cortical dysplasia or co‐occurrence of cortical dysplasia and related lesions within the same pedigree...
Brain functioning is increasingly seen as a complex interplay of dynamic neural systems that rely on the integrity of structural and functional networks. Recent studies that have investigated functional and structural networks in epilepsy have revealed specific disruptions in connectivity and network topology and, consequently, have led to a shift from “focus” to “networks” in modern epilepsy research...
PurposeAccurate classification of epileptic seizures, epilepsies, and epilepsy syndromes is mandatory in both clinical practice and epilepsy research. In 2010, the International League Against Epilepsy (ILAE) proposed a new classification scheme. The aim of this study is to determine whether application of this new classification for epileptic seizures and epilepsies has improved interobserver agreement...
PurposeThalamic hemorrhage has been associated with neonatal cerebral sinovenous thrombosis (CSVT), especially when the straight sinus is involved, and often presents with neonatal seizures. Early thalamic injury has previously been shown to predispose to epilepsy and electrical status epilepticus in slow wave sleep (ESES). The objective of this study was to assess the prevalence of sleep‐induced...
Purpose: To evaluate the effect of stress on seizure frequency in childhood epilepsy, and to assess possible differences between children in whom seizures are precipitated by stress and those in whom they are not.
Methods: Parents or caregivers of children with active epilepsy (aged 2–16 years) were sent questionnaires on developmental and epilepsy characteristics, life‐time stress exposure, and...
We identified a patient with electrophysiologically verified neonatal long QT syndrome (LQTS) and neonatal seizures in the presence of a controlled cardiac rhythm. To find a cause for this unusual combination of phenotypes, we tested the patient for mutations in seven ion channel genes associated with either LQTS or benign familial neonatal seizures (BFNS). Comparative genome hybridization (CGH) was...
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