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Objective
Drug‐resistant epilepsy (DRE) during the first few months of life is challenging and necessitates aggressive treatment, including surgery. Because the most common causes of DRE in infancy are related to extensive developmental anomalies, surgery often entails extensive tissue resections or disconnection. The literature on “ultra‐early” epilepsy surgery is sparse, with limited data concerning...
Objective
Polymicrogyria (PMG) is a common malformation of cortical development. Many patients with PMG will have medically refractory epilepsy but the role of epilepsy surgery is unclear. The objective of this study was to assess the efficacy of surgical resection/disconnection in achieving seizure control in pediatric patients with PMG.
Methods
A retrospective review of children undergoing epilepsy...
Objective
Epileptic spasms (ES) often become drug‐resistant. To reveal the electrophysiological difference between children with ES (ES+) and without ES (ES−), we compared the occurrence rate (OR) of high‐frequency oscillations (HFOs) and the modulation index (MI) of coupling between slow and fast oscillations.
In ES+, we hypothesized that (1) pathological HFOs are more widely distributed and (2)...
Objective
Cortical resections in epilepsy surgery tend to involve multiple lobes in children, compared to adults, partly due to underlying pathology. Oligodendroglia‐like cells (OLCs) have been observed in surgical specimens from children with pharmacoresistant epilepsy. We hypothesize that OLCs recruit multiple‐lobe epileptogenic zones in pediatric pharmacoresistant focal epilepsy.
Methods
We...
ObjectiveTo investigate whether the magnetoencephalography (MEG) single moving dipole (SMD) method could delineate the epileptic zone of focal cortical dysplasia (FCD) at the bottom of sulcus (FCDB).
MethodsWe retrospectively analyzed 17 children (11 male; mean age 8.8 years, range 3–17 years) with FCD type II who underwent epilepsy surgery. We compared spatial congruence between the following: (1)...
ObjectiveSince 2008, we have changed our presurgical diagnostic imaging evaluation for medically refractory focal epilepsy to include high‐resolution epilepsy protocol on 3 T magnetic resonance imaging (MRI), and combined magnetoencephalography and 18‐fluorodeoxyglucose–positron emission tomography (FDG‐PET) in selected patients with normal or subtle changes on MRI or discordant diagnostic tests....
ObjectiveEpilepsy surgery can be successful in children with extensive congenital or early acquired focal or hemispheric brain lesion on magnetic resonance imaging (MRI) despite generalized interictal epileptiform discharges (IEDs). The aim of this study was to assess if rapid eye movement (REM) sleep reduced generalized IEDs and revealed lateralized IEDs to identify the epileptogenic hemisphere in...
The number of times that a published article is cited is one indicator of its scientific impact. An article is termed a “Citation Classic” once it has accumulated more than 400 citations. Trends in these highly cited works allow projection of future directions of high‐impact research within a field. Herein, we identified 89 articles in the field of epilepsy published in 35 different journals that...
Cerebral hyaline astrocytic inclusions have been observed in a subset of patients with early onset epilepsy, brain structural anomalies, and developmental delay, which indicates that it may represent a unique clinicopathologic entity. To further characterize this condition we use proteomics to investigate differentially expressed proteins in epileptic brain tissue from three pediatric epileptic patients...
Purpose: We assessed lateralization of interictal epileptiform discharges (IEDs) in children with intractable epilepsy secondary to tuberous sclerosis complexes (TSCs) during rapid eye movement sleep (R), compared with non–rapid eye movement sleep (NR) and wakefulness (W), to determine epileptogenicity of R‐IEDs.
Methods: We retrospectively studied 23 children with TSC, who underwent prolonged scalp...
Purpose: High‐frequency oscillations (HFOs), termed ripples at 80–200 Hz and fast ripples (FRs) at >200/250 Hz, recorded by intracranial electroencephalography (EEG), may be a valuable surrogate marker for the localization of the epileptogenic zone. We evaluated the relationship of the resection of focal brain regions containing high‐rate interictal HFOs and the seizure‐onset zone (SOZ) determined...
Purpose: We developed a technique to produce images of dynamic changes in ictal high‐frequency oscillations (HFOs) >40 Hz recorded on subdural electroencephalography (EEG) that are time‐locked to the ictal EEG and ictal semiology video. We applied this technique to Jacksonian seizures to demonstrate ictal HFO propagation along the homunculus in the primary sensory‐motor cortex to visualize the...
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