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Seizure epilepsy

Paresh Zanzmera, Ramshekhar N Menon, Kalyani Karkare, Himanshu Soni, Sujit Jagtap, Ashalatha Radhakrishnan
PURPOSE: The purpose of this article was to study the electroclinical characteristics and seizure outcome of children with epilepsy with myoclonic absences (EMA). METHOD: In this descriptive cohort study, we reviewed clinical records of patients who met the criteria for EMA. Each patient's demographic data, birth/developmental history, seizure semiology/pattern, antiepileptic drugs (AED), clinical examination, video-electroencephalography (VEEG), and neuroimaging data were reviewed...
October 19, 2016: Epilepsy & Behavior: E&B
Simone A A Romariz, Daisyléa S Paiva, Layla T Galindo, Gabriela F Barnabé, Vivian A Guedes, Cesario V Borlongan, Beatriz M Longo
AIMS: Medial ganglionic eminence (MGE) progenitors give rise to inhibitory interneurons and may serve as an alternative cell source for large-scale cell transplantation for epilepsy after in vitro expansion. We investigated whether modifications in the culture medium of MGE neurospheres affect neuronal differentiation and expression of MGE-specific genes. In vivo, we compared anticonvulsant effects and cell differentiation pattern among neurospheres grown in different culture media and compared them with freshly harvested MGE cells...
October 21, 2016: CNS Neuroscience & Therapeutics
Rodrigo Antonio Rocha da Cruz Adry, Lucas Crociati Meguins, Sebastião Carlos da Silva Júnior, Carlos Umberto Pereira, Gerardo Maria de Araújo Filho, Lúcia Helena Neves Marques
BACKGROUND: Mesial temporal sclerosis (MTS) is the most common disease found in an epilepsy surgery series. Early age of onset, a history of febrile convulsions, epileptiform discharges on EEG, duration of epilepsy, number of generalized seizures and severity of psychiatric disorders are possible prognostic factors in patients with MTS. OBJECTIVE: The aim of this study is to review the clinical, semiotic, psychological, electrophysiological and neuroradiological researches and relate their findings to the prognosis of patients with MTS who underwent anteromedial temporal lobectomy (ATL)...
October 21, 2016: Acta Neurochirurgica
Stephanie Fehr, Kingsley Wong, Richard Chin, Simon Williams, Nick de Klerk, David Forbes, Rahul Krishnaraj, John Christodoulou, Jenny Downs, Helen Leonard
OBJECTIVE: To investigate seizure outcomes and their relationships to genotype and functional abilities in individuals with the cyclin-dependent kinase-like-5 (CDKL5) disorder. METHODS: Using the International CDKL5 Disorder Database, we identified 172 cases with a pathogenic CDKL5 mutation. We categorized individual mutations into 4 groups based on predicted structural and functional consequences. Negative binomial regression was used to model the linear association between current seizure rate and mutation group, current level of assistance required to walk 10 steps, and the highest level of expressive communication used to convey refusal or request...
October 21, 2016: Neurology
Benjamin Albright, Roni Dhaher, Helen Wang, Roa Harb, Tih-Shih W Lee, Hitten Zaveri, Tore Eid
Loss of glutamine synthetase (GS) in hippocampal astrocytes has been implicated in the causation of human mesial temporal lobe epilepsy (MTLE).However, the mechanism by which the deficiency in GS leads to epilepsy is incompletely understood. Here we ask how hippocampal GS inhibition affects seizure phenotype and neuronal activation during epilepsy development (epileptogenesis). Epileptogenesis was induced by infusing the irreversible GS blocker methionine sulfoximine (MSO) unilaterally into the hippocampal formation of rats...
October 18, 2016: Experimental Neurology
Nicole A Hawkins, Nicole J Zachwieja, Alison R Miller, Lyndsey L Anderson, Jennifer A Kearney
A substantial number of mutations have been identified in voltage-gated sodium channel genes that result in various forms of human epilepsy. SCN1A mutations result in a spectrum of severity ranging from mild febrile seizures to Dravet syndrome, an infant-onset epileptic encephalopathy. Dravet syndrome patients experience multiple seizures types that are often refractory to treatment, developmental delays, and elevated risk for SUDEP. The same sodium channel mutation can produce epilepsy phenotypes of varying clinical severity...
October 2016: PLoS Genetics
Muhammad I Naseer, Adeel G Chaudhary, Mahmood Rasool, Gauthaman Kalamegam, Fai T Ashgan, Mourad Assidi, Farid Ahmed, Shakeel A Ansari, Syed Kashif Zaidi, Mohammed M Jan, Mohammad H Al-Qahtani
BACKGROUND: Epilepsy is genetically complex but common brain disorder of the world affecting millions of people with almost of all age groups. Novel Copy number variations (CNVs) are considered as important reason for the numerous neurodevelopmental disorders along with intellectual disability and epilepsy. DNA array based studies contribute to explain a more severe clinical presentation of the disease but interoperation of many detected CNVs are still challenging. RESULTS: In order to study novel CNVs with epilepsy related genes in Saudi family with six affected and two normal individuals with several forms of epileptic seizures, intellectual disability (ID), and minor dysmorphism, we performed the high density whole genome Agilent sure print G3 Hmn CGH 2x 400 K array-CGH chips analysis...
October 17, 2016: BMC Genomics
Joan Yw Liu, Cheryl Reeves, Beate Diehl, Antonietta Coppola, Aliya Al-Hajri, Chandrashekar Hoskote, Salim Al Mughairy, Mohamed Tachrount, Michael Groves, Zuzanna Michalak, Kevin Mills, Andrew W McEvoy, Anna Miserocchi, Sanjay M Sisodiya, Maria Thom
OBJECTIVE: This study reports on a novel brain pathology in young patients with Frontal Lobe Epilepsy that is distinct from Focal Cortical Dysplasia. METHODS: Surgical specimens from twenty young adults with frontal lobe epilepsy (mean age, 30 years) were investigated with histological/immunohistochemical markers for cortical laminar architecture, mammalian target of rapamycin pathway activation and inhibition, cellular autophagy, and synaptic vesicle-mediated trafficking as well as proteomics analysis...
October 20, 2016: Annals of Neurology
Shery Jacob, Anroop B Nair
Given the distinctive characteristics of both epilepsy and antiepileptic drugs (AEDs), therapeutic drug monitoring (TDM) can make a significant contribution to the field of epilepsy. The measurement and interpretation of serum drug concentrations can be of benefit in the treatment of uncontrollable seizures and in cases of clinical toxicity; it can aid in the individualization of therapy and in adjusting for variable or nonlinear pharmacokinetics; and can be useful in special populations such as pregnancy. This review examines the potential for TDM of newer AEDs such as eslicarbazepine acetate, felbamate, gabapentin, lacosamide, lamotrigine, levetiracetam, perampanel, pregabalin, rufinamide, retigabine, stiripentol, tiagabine, topiramate, vigabatrin, and zonisamide...
October 20, 2016: Drugs in R&D
Shasha Yuan, Weidong Zhou, Junhui Li, Qi Wu
Epilepsy is a serious chronic neurological disorder, which affects more than 50 million people worldwide, and automatic seizure detection on EEG recordings is extremely required in the diagnosis and monitoring of epilepsy. This paper presents a novel seizure detection method using sparse representation-based Earth Mover's Distance (SR-EMD). In the proposed algorithm, wavelet decomposition is executed on the original EEG recordings with five scales, and the scales 3, 4 and 5 are selected to structure the distributions of EEG signals...
October 20, 2016: Medical & Biological Engineering & Computing
Song Hee Lee, Bo Young Choi, Jin Hee Kim, A Ra Kho, Min Sohn, Hong Ki Song, Hui Chul Choi, Sang Won Suh
Choline alfoscerate (α-GPC) is a common choline compound and acetylcholine precursor in the brain, which has been shown to be effective in the treatment of Alzheimer's disease and dementia. α-GPC has been shown to enhance memory and cognitive function in stroke and Alzheimer's patients but currently remains untested in patients suffering from epilepsy. This study aimed to evaluate whether α-GPC treatment after seizure can ameliorate seizure-induced cognitive impairment and neuronal injury. The potential therapeutic effects of α-GPC on seizure-induced cognitive impairment were tested in an animal model of pilocarpine-induced seizure...
October 17, 2016: Brain Research
Vera Dinkelacker, Sophie Dupont, Séverine Samson
The new classification of epilepsy stratifies the disease into an acute level, based on seizures, and an overarching chronic level of epileptic syndromes (Berg et al., 2010). In this new approach, seizures are considered either to originate and evolve in unilateral networks or to rapidly encompass both hemispheres. This concept extends the former vision of focal and generalized epilepsies to a genuine pathology of underlying networks. These key aspects of the new classification can be linked to the concept of cognitive curtailing in focal epilepsy...
October 17, 2016: Epilepsy & Behavior: E&B
Amara Krag, Gregory L Holmes
Infantile spasms, one of the catastrophic epilepsies, can be a diagnostic challenge since the clinical manifestations may be subtle and may mimic benign conditions. Because of the rarity of the condition, primary care physicians and pediatricians may never see a case of infantile spasms during their career and may be unfamiliar with the seizure semiology. This is a serious issue since there is evidence that early diagnosis and treatment may improve outcome. Patients and families are increasingly using the internet more than their physician as a source of medical information about epilepsy...
October 17, 2016: Epilepsy & Behavior: E&B
Ru-Qian He, Qing-Yi Zeng, Pan Zhu, Yi-Xin Bao, Rong-Yuan Zheng, Hui-Qin Xu
OBJECTIVE: The objective of this study was to estimate the risk of a seizure relapse and the high-risk period of recurrence after antiepileptic drug (AED) withdrawal and to determine the predictive factors for a seizure relapse in adult patients with focal epilepsy who were seizure-free for more than 2years. METHODS: Using the Wenzhou Epilepsy Follow-Up Registry Database, 200 adult patients with focal epilepsy were recruited, who were undergoing follow-up, met the inclusion criteria of this study, were seizure-free for more than 2years, began withdrawing between June 2003 and June 2014, and were followed up prospectively for at least 1year or until a seizure relapse...
October 17, 2016: Epilepsy & Behavior: E&B
Glória Maria Almeida Souza Tedrus, Lineu Corrêa Fonseca, Marina Nobrega Augusto, Fernanda Savoia Trindade
PURPOSE: In patients with epilepsy (PWE), relationships between depression, epilepsy characteristics, and cognitive aspects are complex. This study aimed to assess the occurrence of possible major depressive episode in PWE and to verify whether it is associated with the clinical aspects of the disease and cognition. METHODS: Two hundred consecutive PWE with a mean age and standard deviation of 47.6 (±15.1) years were included in the study. We determined whether their Neurological Disorders Depression Inventory for Epilepsy (NDDI-E) scores were associated with their clinical, cognitive, and QOLIE-31 aspects using a significance level of 5% (p<0...
October 17, 2016: Epilepsy & Behavior: E&B
Sándor Beniczky, Ivana Rosenzweig, Michael Scherg, Todor Jordanov, Benjamin Lanfer, Göran Lantz, Pål Gunnar Larsson
PURPOSE: To determine the agreement between five different methods of ictal EEG source imaging, and to assess their accuracy in presurgical evaluation of patients with focal epilepsy. It was hypothesized that high agreement between methods was associated with higher localization-accuracy. METHODS: EEGs were recorded with a 64-electrode array. Thirty-eight seizures from 22 patients were analyzed using five different methods phase mapping, dipole fitting, CLARA, cortical-CLARA and minimum norm...
October 6, 2016: Seizure: the Journal of the British Epilepsy Association
Udaya Seneviratne, Graham Hepworth, Mark Cook, Wendyl D'Souza
PURPOSE: To evaluate electroencephalographic (EEG) differences among syndromes in genetic generalized epilepsy (GGE) based on quantified data. METHODS: 24-hour ambulatory EEGs were recorded in consecutive patients diagnosed with GGE. All epileptiform EEG abnormalities were quantified into density scores (total duration of epileptiform discharges per hour). We conducted one-way analysis of variance (ANOVA) to find out differences in EEG density scores among the syndromes...
October 19, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Ji Yeoun Yoo, Lara V Marcuse, Madeline C Fields, Jillian Rosengard, Maria Vittoria Traversa, Nicolas Gaspard, Lawrence J Hirsch
INTRODUCTION: Brief potentially ictal rhythmic discharges (B(I)RDs) have been described in neonates and critically ill adults, and their association with seizures has been demonstrated. Their significance in non-critically ill adults remains unclear. We aimed to investigate their prevalence, electrographic characteristics and clinical significance. METHODS: We identified adult patients with B(I)RDs who received long term EEG recordings either in the epilepsy monitoring unit or in the ambulatory setting...
October 19, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Marilena Vecchi, Carmen Barba, Debora De Carlo, Micol Stivala, Renzo Guerrini, Emilio Albamonte, Domiziana Ranalli, Domenica Battaglia, Giada Lunardi, Clementina Boniver, Benedetta Piccolo, Francesco Pisani, Gaetano Cantalupo, Giuliana Nieddu, Susanna Casellato, Silvia Cappanera, Elisabetta Cesaroni, Nelia Zamponi, Domenico Serino, Lucia Fusco, Alessandro Iodice, Filippo Palestra, Lucio Giordano, Elena Freri, Ilaria De Giorgi, Francesca Ragona, Tiziana Granata, Isabella Fiocchi, Stefania Maria Bova, Massimo Mastrangelo, Alberto Verrotti, Sara Matricardi, Elena Fontana, Davide Caputo, Francesca Darra, Bernardo Dalla Bernardina, Francesca Beccaria, Giuseppe Capovilla, Maria Pia Baglietto, Alessandra Gagliardi, Aglaia Vignoli, Maria Paola Canevini, Egle Perissinotto, Stefano Francione
OBJECTIVE: To describe the clinical, neuropsychological, and psychopathologic features of a cohort of children with a new diagnosis of symptomatic or presumed symptomatic focal epilepsy at time of recruitment and through the first month. The selected population will be followed for 2-5 years after enrollment to investigate the epilepsy course and identify early predictors of drug resistance. METHODS: In this observational, multicenter, nationwide study, children (age 1 month-12...
October 20, 2016: Epilepsia
Juexin Wang, Dingding Shen, Geqing Xia, Wangzhen Shen, Robert L Macdonald, Dong Xu, Jing-Qiong Kang
Mutations in GABAA receptor subunit genes are frequently associated with epilepsy, and nonsense mutations in GABRG2 are associated with several epilepsy syndromes including childhood absence epilepsy, generalized tonic clonic seizures and the epileptic encephalopathy, Dravet syndrome. The molecular basis for the phenotypic heterogeneity of mutations is unclear. Here we focused on three nonsense mutations in GABRG2 (GABRG2(R136*), GABRG2(Q390*) and GABRG2(W429*)) associated with epilepsies of different severities...
October 20, 2016: Scientific Reports
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