Abstract：
AIM:Seizures originating from the parietal lobe can demonstrate variable semiology. Our aim was to describe the electroclinical features of seizures originating from the mesial parietal lobe. METHOD:We identified four patients through the Comprehensive Epilepsy Program at our institution, who had strong evidence of a mesial parietal source for their epilepsy, including a mesial parietal structural lesion. RESULTS:Patients had very frequent brief seizures despite anticonvulsants, each lasting 10-30s, with rapid return of awareness post-event. Clinically attacks were bland, or showed asymmetric tonic posturing, often with partially preserved awareness. Ictal EEG showed diffuse low voltage fast activity. CONCLUSION:Seizures arising from the precuneus, in the mesial parietal lobe, appear to have a recognizable electroclinical phenotype. Although the clinical and EEG features might have been considered 'non-localizing', there is a striking similarity across patients. The precuneus is a key component of the default mode network (DMN), important for internal reflective thinking. Deactivation of this region has been found to be a prominent feature of generalized spike and wave epileptiform activity. The seizure semiology of these patients presumably reflects activation of this region, and ictal propagation along intrinsically connected components of the DMN.
journal_name
Epilepsy Resjournal_title
Epilepsy researchauthors
Khan SA,Carney PW,Archer JSdoi
10.1016/j.eplepsyres.2014.09.011subject
Has Abstractpub_date
2014-12-01 00:00:00pages
1950-4issue
10eissn
0920-1211issn
1872-6844pii
S0920-1211(14)00244-7journal_volume
108pub_type
杂志文章abstract：:AWD 140-190 a potent new anticonvulsant was tested on several types of epileptiform activities in entorhinal cortex hippocampal slices. AWD 140-190 suppressed completely and in a dose-dependent manner spontaneous seizure-like events induced by lowering extracellular Ca2+. In the low magnesium model, AWD 140-190 applie...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(97)00066-1
更新日期：1997-12-01 00:00:00
abstract：:There is increasing clinical and experimental evidence that hormones, in particular sex steroid hormones, influence neuronal excitability and other brain functions. The term 'neuroactive steroids' has been coined for steroids that interact with neurotransmitter receptors. One of the best characterized actions of neuro...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/s0920-1211(01)00194-2
更新日期：2001-05-01 00:00:00
abstract：:Sodium valproate is a drug widely used for the treatment of epilepsy and mood disorders. We studied the effect of valproate on cerebral energy metabolism by incubating rat brain slices with 5 mM [3-(13)C]glutamate in the absence and the presence of 1 mM valproate. Substrate removal and product formation were measured ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2011.10.028
更新日期：2012-03-01 00:00:00
abstract：:We aim to investigate structural brain abnormalities in juvenile myoclonic epilepsy (JME) patients with photosensitivity (PS). Sixty JME patients, 19 (32%) of whom were photosensitive, were submitted to 1.5T magnetic resonance voxel-based morphometry (VBM). The control group (CTL) consisted of 30 sex-matched healthy v...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.05.016
更新日期：2009-10-01 00:00:00
abstract：:Seizures that occur during early development are associated with adverse neurodevelopmental outcomes. Causation and mechanisms are currently under investigation. Induction of an early life seizure by kainic acid (KA) in immature rats on post-natal day (P) 7 results in behavioral changes in the adult rat that reflect s...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2020.106283
更新日期：2020-03-01 00:00:00
abstract：:In this preliminary study, we evaluated the predictive ability of Correlation Dimension (CD) and Nonlinear Interdependence (NI) for seizures in pediatric myoclonic epilepsy patients. Scalp EEG recordings of eight diagnosed cases of myoclonic epilepsy were analyzed using Receiver Operating Curve (ROC) for discriminatin...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2017.06.011
更新日期：2017-09-01 00:00:00
abstract：PURPOSE:The present study was planned as there is paucity of outcome data of children with infantile spasms, from India where profile of patients is different from the western world. Moreover, most previous studies have either not used strict inclusion criteria or standardized psychometric tests for developmental outco...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2013.12.009
更新日期：2014-03-01 00:00:00
abstract：:Mutations in voltage-gated sodium channel genes cause several types of human epilepsies. Often, individuals with the same sodium channel mutation exhibit diverse phenotypes. This suggests that factors beyond the primary mutation influence disease severity, including genetic modifiers. Mouse epilepsy models with voltag...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.11.016
更新日期：2016-01-01 00:00:00
abstract：:Twenty-one children (11 boys, 10 girls) suffering from visual seizures were studied. The visual seizures manifested as loss of vision, flickering light, blurring or figurative hallucinations. Ictal EEGs during visual seizures were recorded in 4 cases; the ictal discharges all originated in the occipital area. Visual s...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(87)90032-5
更新日期：1987-07-01 00:00:00
abstract：:Temporal lobe epilepsy (TLE) has been modeled in mice using pilocarpine induction, with variable results depending on specific strains. To allow efficient xenotransplantation for the purpose of optimizing potential cell-based therapy of human TLE, we have determined the optimal dosing strategy to produce spontaneous r...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.10.016
更新日期：2015-01-01 00:00:00
abstract：:Depression is a frequent psychiatric symptom in epilepsy and has been related to epilepsy of temporal origin, especially of left-sided foci. No study differentiated the precise localization of the epileptogenic lesion within the temporal lobe. Regarding this issue, we evaluated depression assessed by the Beck Depressi...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(99)00117-5
更新日期：2000-04-01 00:00:00
abstract：BACKGROUND:Polyunsaturated fatty acids have been reported to increase seizure threshold and to reduce seizure duration and severity in rats. OBJECTIVE:The purpose of the present study was to test the anticonvulsant effects of an essential fatty acid mixture containing linoleic and alpha-linolenic acids at a 4:1 ratio ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2006.05.011
更新日期：2006-09-01 00:00:00
abstract：BACKGROUND:Epilepsy is among the more stigmatising diseases, leading to a negative impact on the quality of life (QoL) of people with epilepsy (PWE). Assessment of the QoL and stigma in PWE reflects the outcome of their disease, and the findings can be used to improve the management of epilepsy. To fill a gap in the li...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2020.106437
更新日期：2020-11-01 00:00:00
abstract：:In rats with electrodes implanted in the hippocampus or amygdala, the effect was studied of a single episode of low frequency stimulation (125 msec, biphasic 4 Hz, for 1 min at a current 50% of threshold for after-discharge), LFS, on the after-discharge thresholds (ADTs) during the course of hippocampal and amygdaloid...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(89)90029-6
更新日期：1989-05-01 00:00:00
abstract：OBJECTIVE:To quantitatively analyze trajectory of movement in automatisms with temporal lobe epilepsy (TLE) and frontal lobe epilepsy (FLE). METHODS:Twenty markers were attached to chosen body parts of patients, and 10 videos of seizures were recorded. The obtained videos were converted into digital matrices. Motor tr...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.09.010
更新日期：2009-02-01 00:00:00
abstract：:Ketamine, a noncompetitive N-methyl-D-aspartate receptor (NMDAR) antagonist, used as an anesthetic has been reported to induce seizures both in humans and baboons predisposed to epilepsy. In this study, we aimed to characterize the acute effects of ketamine on scalp (sc-EEG) and intracranial EEG (ic-EEG) in the baboon...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2019.04.008
更新日期：2019-08-01 00:00:00
abstract：:Hippocampal Deep Brain Stimulation (DBS) is proposed as an experimental treatment for refractory epilepsy, but the optimal stimulation parameters are undetermined. High frequency hippocampal DBS at 130Hz is effective in both animals and patients with epilepsy. Low frequency stimulation (approximately 5Hz) is assumed t...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.11.014
更新日期：2010-02-01 00:00:00
abstract：RATIONALE:Epilepsy is the most common serious neurological condition in the world, and an important cause of mortality and disability in developing countries. Because epidemiological and clinical characteristics of epilepsy vary by region, it is important to know the peculiarities of epilepsy in this area of the Americ...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2005.07.002
更新日期：2005-08-01 00:00:00
abstract：:In rats, the concurrent alternate elicitation of epileptiform activity in two forebrain structures can result in both the rapid production of severe seizures and the development of fully generalized seizures in one (dominant) site, while arresting the progress of seizure activity at intermediate stages in the other (s...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(98)00103-x
更新日期：1999-04-01 00:00:00
abstract：:Previous studies have demonstrated that remacemide and its desglycinyl metabolite, AR-R 2495AA, reduce neuronal damage in animal models of ischemia, subarachnoid hemorrhage, and traumatic brain injury. The aim of the present study was to investigate whether remacemide hydrochloride also alleviates seizure-induced neur...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(98)00122-3
更新日期：1999-04-01 00:00:00
abstract：BACKGROUND:Anticonvulsant hypersensitivity syndrome (AHS) is one of the most severe forms of drug eruption with potentially lethal, and multiorgan involvement. Recently, it has been suggested that Human Herpesvirus (HHV) infection has been involved in this syndrome, although the pathogenesis of this syndrome remains st...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2006.02.006
更新日期：2006-07-01 00:00:00
abstract：:The antidepressant drug fluoxetine (FLX) has been shown to exert antiepileptic effects in several animal models, but mixed preclinical findings and occasional reports of proconvulsant effects have led to hesitation towards its use in epileptic people. Despite being developed as a selective serotonin reuptake inhibitor...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2012.03.019
更新日期：2012-08-01 00:00:00
abstract：:Valproate (VPA) and vigabatrin (gamma-vinyl GABA, GVG) are two novel antiepileptic drugs with a presumed GABAergic mechanism of action. However, for VPA, this aspect has been extensively debated. The aim of the present study was to investigate whether treatment of cultured neurons with clinically relevant concentratio...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(88)90024-1
更新日期：1988-03-01 00:00:00
abstract：OBJECTIVE:The NTRK2 gene encodes a member of the neurotrophic tyrosine kinase receptor family known as TrkB. It is a membrane-associated receptor with signaling and cellular differentiation properties that has been involved in neuropsychiatric disorders, including epilepsy. We report here the frequencies of NTRK2 allel...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2017.08.010
更新日期：2017-11-01 00:00:00
abstract：:Recognition of the role of genetics in the epilepsies has increased dramatically, impacting on clinical practice across many epilepsy syndromes. There is limited research investigating the impact of gene identification on individuals and families with epilepsy. While research has focused on the impact of delivering ge...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.02.011
更新日期：2015-05-01 00:00:00
abstract：:Young adult and aged male Fisher 344 rats underwent kainate-induced convulsive status epilepticus (SE) for 4 h prior to sacrifice to determine potential aging-related differences in the effect of prolonged SE on the expression of hippocampal voltage-gated calcium channels (VGCCs). Immunohistochemistry was performed on...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2003.10.007
更新日期：2003-11-01 00:00:00
abstract：:Periventricular nodular heterotopia (PNH) is characterized by disabled neural migration and is usually associated with epilepsy. Despite awareness of PNH-related epilepsy, little is known about the brain-level underlying functional neural bases. Thus, we used functional magnetic resonance imaging (MRI) to examine the ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2021.106548
更新日期：2021-01-05 00:00:00
abstract：:To help identify patients at greatest risk for sudden unexpected death in epilepsy (SUDEP), screening inventories like the SUDEP-7 Inventory can be useful. In this study, we examined the strength of association between this inventory's risk factors and postictal generalized EEG suppression (PGES), a biomarker of SUDEP...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.09.006
更新日期：2015-11-01 00:00:00
abstract：INTRODUCTION:Proton magnetic resonance spectroscopy ((1)H MRS) has been proposed as a lateralizing method for the presurgical evaluation of patients with medically intractable temporal lobe epilepsy (TLE). Studies have shown correlations between temporal lobe (TL) NAA and seizure frequency, and TL NAA/Cr and the durati...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2004.06.010
更新日期：2004-12-01 00:00:00
abstract：:We herein investigated risk factors of pediatric acute encephalopathy (AE) regarding the hitherto uncharacterized genetic background of seizure susceptibility underlying the pathogenesis of AE. The study included 15 patients with a history of various types of AE in childhood. We undertook the mutational analysis of th...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2010.07.005
更新日期：2010-10-01 00:00:00
