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Intractable epilepsy

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https://www.readbyqxmd.com/read/29233473/changes-in-the-electrocorticogram-after-implantation-of-intracranial-electrodes-in-humans-the-implant-effect
#1
Felice T Sun, Sharanya Arcot Desai, Thomas K Tcheng, Martha J Morrell
OBJECTIVE: Subacute and long-term electrocorticographic (ECoG) changes in ambulatory patients with depth and cortical strip electrodes were evaluated in order to determine the length of the implant effect. METHODS: ECoG records were assessed in patients with medically intractable epilepsy who had depth and/or strip leads implanted in order to be treated with brain-responsive stimulation. Changes in total spectral power, band-limited spectral power, and spike rate were assessed...
November 14, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29223885/three-novel-slc2a1-mutations-in-bulgarian-patients-with-different-forms-of-genetic-generalized-epilepsy-reflecting-the-clinical-and-genetic-diversity-of-glut1-deficiency-sydnrome
#2
Nevyana Ivanova, Valentina Peycheva, Kunka Kamenarova, Dalia Kancheva, Irina Tsekova, Iliana Aleksandrova, Dimitrina Hristova, Ivan Litvinenko, Diana Todorova, Gergana Sarailieva, Petya Dimova, Veselin Tomov, Veneta Bozhinova, Vanio Mitev, Radka Kaneva, Albena Jordanova
PURPOSE: GLUT1-deficiency syndrome (GLUT1-DS) is a metabolic brain disorder with a great clinical heterogeneity underlined by various mutations in the SLC2A1 gene which make the clinical and genetic diagnosis complicated. The purpose of our study is to investigate the genetic defects affecting the SLC2A1 gene in a group of Bulgarian patients with genetic generalized epilepsy (GGE), and to bring new insights into the molecular pathology of GLUT1-DS that would strengthen the genotype-phenotype correlations and improve the diagnostic procedure...
November 28, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29217690/re-positioning-of-somatic-golgi-apparatus-is-essential-for-the-dendritic-establishment-of-adult-born-hippocampal-neurons
#3
Sneha Rao, Gregory W Kirschen, Joanna Szczurkowska, Adrian Di Antonio, Jia Wang, Shaoyu Ge, Maya Shelly
New dentate granule cells are continuously generated, and integrate into the pre-existing hippocampal network in the adult brain. How an adult-born neuron with initially simple spindle-like morphology develops into a complex dentate granule cell (DGC), consisting of a single apical dendrite with further branches, remains largely unknown. Here, using retroviruses to birth-date and manipulate newborn neurons, we examined initial dendritic formation, and possible underlying mechanisms. We found that GFP-expressing newborn cells began to establish a DGC-like morphology at around 7 days after birth, with a primary dendrite pointing to the molecular layer, but at this stage, with several neurites in the neurogenic zone...
December 6, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29209582/white-matter-tracts-in-patients-with-temporal-lobe-epilepsy-pre-and-postoperative-assessment
#4
Fateme Salehi, Manas Sharma, Terry M Peters, Ali R Khan
Patients with intractable temporal lobe epilepsy (TLE) undergo surgical resection of the anterior temporal lobe. Preoperative assessment of TLE patients involves a multidisciplinary assessment and may involve the use of invasive electroencephalogram (EEG) recording for lateralization of seizure focus in ambiguous cases. Understanding the white matter fibre tracts affected in TLE may assist in preoperative lateralization and planning. We studied pre- and postoperative white matter fibre tract changes in six patients with TLE who underwent surgical resection...
October 1, 2017: Curēus
https://www.readbyqxmd.com/read/29207692/oxidative-stress-in-the-development-of-genetic-generalised-epilepsy-an-observational-study-in-southern-indian-population
#5
D K V Prasad, U Satyanarayana, Uzma Shaheen, T Surya Prabha, Anjana Munshi
Introduction: Oxidative stress resulting from excessive generation of Reactive Oxygen Species (ROS) plays a significant role in neurodegeneration associated with seizures/epilepsy. Aim: To evaluate oxidative stress markers and antioxidant enzymes in Genetic Generalised Epilepsy (GGE) and to know the extent of oxidative stress induced by Anti-Epileptic Drugs (AEDs) with the time duration of treatment. Materials and Methods: In this case-control study, 310 GGE patients (male:female=203:107), who were on AED treatment (n=235) and 75 untreated patients (male:female=49:26) along with 310 age and sex matched healthy controls were recruited...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29204347/impairment-of-consciousness-induced-by-bilateral-electrical-stimulation-of-the-frontal-convexity
#6
Imran H Quraishi, Christopher F Benjamin, Dennis D Spencer, Hal Blumenfeld, Rafeed Alkawadri
We report a case of impairment of consciousness (IOC) induced by electrical cortical stimulation (ECS) of homologous regions within the lateral frontal convexities in a patient with medically intractable epilepsy. The patient had mixed features of idiopathic generalized and focal epilepsy. On intracranial EEG recording, interictal and ictal discharges showed a high degree of synchrony across widespread bilateral fronto-parietal areas. We identified regions in the lateral frontal lobes that reliably and produced loss of consciousness by ECS...
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/29201120/long-term-video-eeg-monitoring-findings-in-children-and-adolescents-with-intractable-epilepsy
#7
Yasaman Ghazavi, Ebrahim Asayesh Zarchi, Taher Taheri, Mahdi Safiabadi, Elham Rahimian, Susan Amirsalari
Objective: Long Term Video-EEG Monitoring (LTM) may give us important information in the preoperative assessment of these patients. We performed this study for the first time in pediatric age group in Iran. Materials and Methods: In this cross-sectional study, 43 children between 4 to 18 yr, with intractable epilepsy referred to Shefa Neuroscience Research Center, Tehran, Iranfrom2007-2012, were enrolled to study in order to evaluate their long-term video EEG findings...
2017: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/29197666/surgical-outcome-and-predictive-factors-of-epilepsy-surgery-in-pediatric-isolated-focal-cortical-dysplasia
#8
Sun Ah Choi, Soo Yeon Kim, Hyuna Kim, Woo Joong Kim, Hunmin Kim, Hee Hwang, Ji Eun Choi, Byung Chan Lim, Jong-Hee Chae, Sangjoon Chong, Ji Yeoun Lee, Ji Hoon Phi, Seung-Ki Kim, Kyu-Chang Wang, Ki Joong Kim
OBJECTIVE: Focal cortical dysplasia (FCD) is a common cause of medically intractable epilepsy in children. Epilepsy surgery has been a valuable treatment option to achieve seizure freedom in these intractable epilepsy patients. We aimed to present long-term surgical outcome, in relation to pathological severity, and to assess predictive factors of epilepsy surgery in pediatric isolated FCD. METHODS: We retrospectively analyzed the data of 58 children and adolescents, with FCD International League Against Epilepsy (ILAE) task force classification types I and II, who underwent resective epilepsy surgery and were followed for at least 2 years after surgery...
November 27, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29191650/cortical-language-areas-and-plasticity-in-pediatric-patients-with-epilepsy-a-review
#9
REVIEW
Naomi Chou, Sandra Serafini, Carrie R Muh
Chronic injury to the brain from seizure activity is associated with decreased language skills in pediatric patients, as measured on neuropsychological tests for language function and academic achievement. This makes the study of language in patients with epilepsy clinically necessary. Functional magnetic resonance imaging and direct electrical cortical stimulation have been used to evaluate aspects of cortical language processing in healthy adults and in adults with epilepsy or other neurological insults. Results of these studies help to locate cortical language areas that are involved with modality-specific language processing (visual naming, auditory naming, sentence-completion, and repetition) and the neuroplasticity of language areas in the setting of neurological injury and reorganization...
October 12, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/29184718/three-consecutive-neurotomies-in-one-patient-for-the-treatment-of-spastic-hemiplegia-spinal-median-and-foot-toes-common-flexor
#10
José D Carrillo-Ruiz, Pablo Andrade, Mary Fonseca, Fiacro Jiménez, María L Montes-Castillo, Francisco Velasco
Background: Neurotomies were one of the first procedures performed in the field of functional neurosurgery. Microstimulators and microscopes facilitate the performance of neurotomies to treat focal spasticity. This report shows how three different consecutive neurotomies were performed in one patient with chronic left upper/lower extremity spasticity. Case Description: A 65-year-old male with intractable epilepsy underwent a right temporal lobectomy for seizure control...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29184345/vagus-nerve-stimulation-modulates-complexity-of-heart-rate-variability-differently-during-sleep-and-wakefulness
#11
Karthi Balasubramanian, K Harikumar, Nithin Nagaraj, Sandipan Pati
Progressive loss of heart rate variability (HRV) and complexity are associated with increased risk of mortality in patients with cardiovascular disease and are a candidate marker for patients at risk of sudden cardiac death. HRV is influenced by the cardiac autonomic nervous system (ANS), although it is unclear which arm of the ANS (sympathetic or parasympathetic) needs to be perturbed to increase the complexity of HRV. In this case-control study, we have analyzed the relation between modulation of vagus nerve stimulation (VNS) and changes in complexity of HRV as a function of states of vigilance...
October 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/29181526/cortical-structures-associated-with-human-blood-pressure-control
#12
Nuria Lacuey, Johnson P Hampson, Wanchat Theeranaew, Bilal Zonjy, Ajay Vithala, Norma J Hupp, Kenneth A Loparo, Jonathan P Miller, Samden D Lhatoo
Importance: A better understanding of the role of cortical structures in blood pressure control may help us understand cardiovascular collapse that may lead to sudden unexpected death in epilepsy (SUDEP). Objective: To identify cortical control sites for human blood pressure regulation. Design, Setting, and Participants: Patients with intractable epilepsy undergoing intracranial electrode implantation as a prelude to epilepsy surgery in the Epilepsy Monitoring Unit at University Hospitals Cleveland Medical Center were potential candidates for this study...
November 27, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29178011/pyridoxine-dependent-epilepsies-an-observational-study-on-clinical-diagnostic-therapeutic-and-prognostic-features-in-a-pediatric-cohort
#13
Raffaele Falsaperla, Maria Stella Vari, Irene Toldo, Alessandra Murgia, Stefano Sartori, Marilena Vecchi, Agnese Suppiej, Alberto Burlina, Mario Mastrangelo, Vincenzo Leuzzi, Valentina Marchiani, Paola De Liso, Giuseppe Capovilla, Pasquale Striano, Giovanna Vitaliti
The aim of our study was to describe the clinical, electroencephalogram, molecular findings and the diagnostic and therapeutic flow-chart of children with pyridoxine-dependent epilepsies (PDEs). We performed a retrospective observational study on children with PDEs, diagnosed and followed-up in Italian Pediatric Departments. In each centre, the authors collected data from a cohort of children admitted for intractable seizures, responsive to pyridoxine administration and resistant to other anticonvulsant therapies...
November 25, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29175724/a-right-amygdalohippocampectomy-a-diagnostic-challenge
#14
Frank Jonker, Cees Jonker, Laura Bronzwaer, Erik Scherder
OBJECTIVE: Amygdalohippocampectomy (AHE) is the resective surgery for medically intractable mesial temporal lobe epilepsy. To date no study has investigated a wide range of neuropsychiatric symptoms in right AHE outpatients. PATIENTS AND METHODS: Three patients with right AHE participated in this study. The control group are patients with cognitive complaints with no history of epilepsy or neurological impairment and no structural abnormalities on the MRI/CT. We expected no difference in verbal memory compared to the controls...
November 21, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29169082/the-safety-and-efficacy-of-propofol-as-a-replacement-for-amobarbital-in-intracarotid-wada-testing-of-presurgical-patients-with-epilepsy
#15
Kaci McCleary, Joseph Barrash, Mark Granner, Kenneth Manzel, Audrey Greider, Robert Jones
OBJECTIVE: The intracarotid sodium amytal procedure (the "Wada test") has for many years been the gold standard for language and memory lateralization and remains an important part of presurgical analysis for patients with medically intractable seizures. Due to shortages in the key sedative (amobarbital), neuropsychologists have turned to alternatives such as propofol. Our aim was to investigate the safety and efficacy of propofol relative to amobarbital in the Wada test. METHODS: We performed a retrospective review of the 97 Wada procedures performed at University of Iowa Hospitals and Clinics from 2007 through mid-2015...
November 20, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29169047/spinal-muscular-atrophy-with-progressive-myoclonic-epilepsy-linked-to-mutations-in-asah1
#16
Edibe Pembegül Yildiz, Gözde Yesil, Gonca Bektas, Mine Caliskan, Burak Tatlı, Nur Aydinli, Meral Ozmen
Spinal muscular atrophy with progressive myoclonic epilepsy (SMA-PME), a rare disorder caused by mutation in the ASAH1 gene, is characterized by progressive muscle weakness and intractable epilepsy. The literature about SMA-PME is very rare and most of the time limited to case reports. Mutation in the ASAH1 gene is also found in another rare syndrome which is Farber disease. We report a case of a 13.5-year-old girl with SMA-PME associated with ASAH1 gene mutation. She presented with progressive muscle weakness, tremor, seizure, and cognitive impairment...
November 20, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29161968/assessment-of-depression-in-epilepsy-the-utility-of-common-and-disease-specific-self-report-depression-measures
#17
Lauren B Strober, Jessica Chapin, Angela Spirou, George Tesar, Adele Viguera, Imad Najm, Robyn M Busch
OBJECTIVES: Depression is common in epilepsy, with rates ranging from 20 to 55% in most samples and reports as high as 70% in patients with intractable epilepsy. However, some contend that depression may be over- and/or under-reported and treated in this population. This may be due to the use of common self-report depression measures that fail to take into account the overlap of disease and depressive symptoms and also the host of side effects associated with antiepileptic medication, which may also be construed as depression...
November 22, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/29161631/perceived-epilepsy-stigma-mediates-relationships-between-personality-and-social-well-being-in-a-diverse-epilepsy-population
#18
Seth A Margolis, Luba Nakhutina, Sarah G Schaffer, Arthur C Grant, Jeffrey S Gonzalez
INTRODUCTION: Perceived epilepsy stigma and reduced social well-being are prevalent sources of distress in people with epilepsy (PWE). Yet, research on patient-level correlates of these difficulties is lacking, especially among underserved groups. MATERIALS AND METHODS: Racially/ethnically diverse adults with intractable seizures (N=60, 62% female; 79% Black, 20% Hispanic/Latino, 8% White) completed validated measures of personality (NEO Five Factor Inventory, NEO-FFI-3), perceived epilepsy stigma (Epilepsy Stigma Scale, ESS), and quality of life (Quality of Life Inventory in Epilepsy, QOLIE-89)...
November 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29159426/an-initial-cost-effectiveness-analysis-of-intraoperative-magnetic-resonance-imaging-imri-in-pediatric-epilepsy-surgery
#19
Matthew F Sacino, Sean S Huang, Robert F Keating, William D Gaillard, Chima O Oluigbo
PURPOSE: Previous studies have illustrated the clinical utility of the addition of intraoperative magnetic resonance imaging (iMRI) to conventional microsurgical resection. While iMRI requires initial capital cost investment, long-term reduction in costly follow-up management and reoperation costs may prove economically efficacious. The objective of this study is to investigate the cost-effectiveness of the addition of iMRI utilization versus conventional microsurgical techniques in focal cortical dysplasia (FCD) resection in pediatric patients with medically refractory epilepsy...
November 20, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29128679/early-onset-epileptic-encephalopathy-with-de-novo-scn8a-mutation
#20
Yangyang Xiao, Jie Xiong, Ding'an Mao, Lingjuan Liu, Jian Li, Xingfang Li, Haiyan Luo, Liqun Liu
Early-onset epileptic encephalopathies (EOEEs) are clinically and genetically heterogeneous disorders characterized by intractable seizures and unremitting interictal paroxysmal epileptiform activity. Consequently, these syndromes impair neurodevelopment during the first year of life. Currently, the etiology of these disorders is largely unknown. In this study, Childhood-Onset Epilepsy Gene Panel Testing (containing 511 epilepsy-related genes) was performed in a parent-offspring trio. In this family, the son had refractory seizures, intellectual disability, and motor abnormalities, and he was diagnosed with EOEE...
October 28, 2017: Epilepsy Research
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