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https://www.readbyqxmd.com/read/28436627/-temporal-lobe-epilepsy-and-adult-hippocampal-neurogenesis
#1
Liying Chen, Yi Wang, Zhong Chen
Temporal lobe epilepsy (TLE) is a common and severe neurological disorder which is often intractable. It can not only damage the normal structure and function of hippocampus, but also affect the neurogenesis in dentate gyrus (DG). It is well documented from researches on the animal models of TLE that after a latent period of several days, prolonged seizure activity leads to a dramatic increase in mitotic activity in the hippocampal DG. However, cell proliferation returns to baseline levels within 3-4 weeks after status epilepticus (SE)...
January 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28431589/t2-relaxometry-helps-prognosticate-seizure-outcome-in-patients-with-solitary-cerebral-cysticercosis
#2
Aaron de Souza, Atchayaram Nalini, Jitender Saini, Kandavel Thennarasu
OBJECTIVE: Correlate serial T2 relaxometry (T2R) values with long term seizure outcome in patients with solitary cerebral cysticercosis (SCC) in order to establish its usefulness as a prognostic marker in these patients. METHODS: Patients with new-onset seizures due to SCC were imaged serially using a pre-determined MRI protocol at enrolment and after 3, 6, 12 and 24months. T2 relaxometry was performed using a dual echo sequence with maps generated manually from the measured image intensities at the level of the lesion...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28428738/improved-localization-of-seizure-onset-zones-using-spatiotemporal-constraints-and-time-varying-source-connectivity
#3
Juan D Martinez-Vargas, Gregor Strobbe, Kristl Vonck, Pieter van Mierlo, German Castellanos-Dominguez
Presurgical evaluation of brain neural activity is commonly carried out in refractory epilepsy patients to delineate as accurately as possible the seizure onset zone (SOZ) before epilepsy surgery. In practice, any subjective interpretation of electroencephalographic (EEG) recordings is hindered mainly because of the highly stochastic behavior of the epileptic activity. We propose a new method for dynamic source connectivity analysis that aims to accurately localize the seizure onset zones by explicitly including temporal, spectral, and spatial information of the brain neural activity extracted from EEG recordings...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28427143/activity-induced-spontaneous-spikes-in-gabaergic-neurons-suppress-seizure-discharges-an-implication-of-computational-modeling
#4
Wei Lu, Jing Feng, Bo Wen, Kewei Wang, Jin-Hui Wang
BACKGROUND: Epilepsy, a prevalent neurological disorder, appears self-termination. The endogenous mechanism for seizure self-termination remains to be addressed in order to develop new strategies for epilepsy treatment. We aim to examine the role of activity-induced spontaneous spikes at GABAergic neurons as an endogenous mechanism in the seizure self-termination. METHODS AND RESULTS: Neuronal spikes were induced by depolarization pulses at cortical GABAergic neurons from temporal lobe epilepsy patients and mice, in which some of these neurons fired activity-induced spontaneous spikes...
February 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28425015/the-new-classification-of-seizures-by-the-international-league-against-epilepsy-2017
#5
REVIEW
Robert S Fisher
PURPOSE OF REVIEW: This review presents the newly developed International League Against Epilepsy (ILAE) 2017 classification of seizure types. RECENT FINDINGS: The fundamental distinction is between seizures that begin focally in one hemisphere of the brain, generalized onset seizures that apparently originate in both hemispheres, and seizures of unknown onset. Focal seizures optionally can be subclassified according to whether awareness (a surrogate marker for consciousness) is intact or impaired...
June 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28420301/seizures-in-pediatric-patients-with-liver-transplant-and-efficacy-of-levetiracetam
#6
Betül Kılıç, Serdal Güngör, Müjgan Arslan, Mukadder Ayşe Selimoğlu, Sezai Yılmaz
The aim of this study was to evaluate the risk factors, clinical implications, and prognosis of new-onset seizures that occurred after pediatric liver transplantation, and to assess the efficacy of levetiracetam treatment. The clinical and laboratory data of liver transplanted 28 children who had seizures after liver transplantation and specifically of 18 children who received levetiracetam were analyzed retrospectively. Sixteen patients (88.9%) remained seizure-free and in 2 (11.1%), more than 50% reduction in seizures were detected with levetiracetam treatment...
January 1, 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28416780/new-onset-epilepsy-in-the-elderly-clinical-radiological-and-electroencephalographic-features-and-treatment-responses
#7
Erum M Shariff, Fahd A AlKhamis
OBJECTIVE: To evaluate new onset epilepsy characteristics, etiology, radiological and electroencephalographic features and to document treatment response in the elderly. METHODS: This was a retrospective study carried out in King Fahd Medical City, Riyadh, Kingdom of Saudi Arabia, from 2010 to 2013. Medical records were searched to recruit patients. Hundred and nineteen patients were enrolled who fulfill the inclusion criteria. Clinical data with respect to seizure semiology, etiology, electroencephalographic findings, radiological findings, co-morbidities, and anti-epileptic drug (AED) therapy were assessed...
April 2017: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
https://www.readbyqxmd.com/read/28413272/an-analysis-of-perioperative-adverse-neurological-events-associated-with-anesthetic-management-at-a-tertiary-care-center-of-a-developing-country
#8
Fauzia Anis Khan, Sobia Khan, Gauhar Afshan
BACKGROUND AND AIMS: Existing literature on neurological complications related to anesthesia is reported from affluent countries but the trends may vary in less affluent countries. MATERIAL AND METHODS: The objective was to find the associated factors contributing to neurological adverse events occurring within 48 h of anesthesia and surgery. The existing departmental morbidity and mortality database was reviewed from 1992 to 2012 for major adverse neurological events...
January 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28412310/increased-seizure-susceptibility-and-other-toxicity-symptoms-following-acute-sulforaphane-treatment-in-mice
#9
Katarzyna Socała, Dorota Nieoczym, Edyta Kowalczuk-Vasilev, Elżbieta Wyska, Piotr Wlaź
Activation of Nrf2 with sulforaphane has recently gained attention as a new therapeutic approach in the treatment of many diseases, including epilepsy. As a plant-derived compound, sulforaphane is considered to be safe and well-tolerated. It is widely consumed, also by patients suffering from seizure and taking antiepileptic drugs, but no toxicity profile of sulforaphane exists. Since many natural remedies and dietary supplements may increase seizure risk and potentially interact with antiepileptic drugs, the aim of our study was to investigate the acute effects of sulforaphane on seizure thresholds and activity of some first- and second-generation antiepileptic drugs in mice...
April 13, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28405089/right-hemispheric-reversible-cerebral-vasoconstriction-syndrome-in-a-patient-with-left-hemispheric-partial-seizures
#10
Gina S Perez, Justin McCaslin, Sadat Shamim
We report a right-handed 19-year-old girl who developed reversible cerebral vasoconstriction syndrome (RCVS) lateralized to the right hemisphere with simultaneous new-onset left hemispheric seizures. RCVS, typically more diffuse, was lateralized to one of the cerebral hemispheres.
April 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28405088/dural-arteriovenous-fistula-as-a-treatable-dementia
#11
Ikponmwosa Enofe, Ike Thacker, Sadat Shamim
Dementia is a chronic loss of neurocognitive function that is progressive and irreversible. Although rare, dural arteriovenous fistulas (DAVFs) could present with a rapid decline in neurocognitive function with or without Parkinson-like symptoms. DAVFs represent a potentially treatable and reversible cause of dementia. Here, we report the case of an elderly woman diagnosed with a DAVF after presenting with new-onset seizures, deteriorating neurocognitive function, and Parkinson-like symptoms.
April 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28396650/new-onset-refractory-status-epilepticus-with-claustrum-damage-definition-of-the-clinical-and-neuroimaging-features
#12
Stefano Meletti, Giada Giovannini, Giuseppe d'Orsi, Lisa Toran, Giulia Monti, Rahul Guha, Andreas Kiryttopoulos, Maria Grazia Pascarella, Tommaso Martino, Haris Alexopoulos, Martha Spilioti, Jana Slonkova
New-onset refractory status epilepticus (NORSE) is a rare but challenging condition occurring in a previously healthy patient, often with no identifiable cause. We describe the electro-clinical features and outcomes in a group of patients with NORSE who all demonstrated a typical magnetic resonance imaging (MRI) sign characterized by bilateral lesions of the claustrum. The group includes 31 patients (12 personal and 19 previously published cases; 17 females; mean age of 25 years). Fever preceded status epilepticus (SE) in 28 patients, by a mean of 6 days...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28396294/chronic-ambulatory-electrocorticography-from-human-speech-cortex
#13
Vikram R Rao, Matthew K Leonard, Jonathan K Kleen, Ben A Lucas, Emily A Mirro, Edward F Chang
Direct intracranial recording of human brain activity is an important approach for deciphering neural mechanisms of cognition. Such recordings, usually made in patients with epilepsy undergoing inpatient monitoring for seizure localization, are limited in duration and depend on patients' tolerance for the challenges associated with recovering from brain surgery. Thus, typical intracranial recordings, similar to most non-invasive approaches in humans, provide snapshots of brain activity in acute, highly constrained settings, limiting opportunities to understand long timescale and natural, real-world phenomena...
April 7, 2017: NeuroImage
https://www.readbyqxmd.com/read/28384919/unusual-presentation-of-porencephalic-cyst-in-an-adult
#14
Abel Thomas Oommen, Ganeswar Sethy, Noas Tobias Minz, Jogendra Patra, Swayang Sudha Panda
Porencephalic cyst is quite a rare entity in adults with only a few cases reported so far. It is usually congenital and seen in neonates. Here, we report a 28-year-old female who presented with post-ictal confusion following a new onset of focal seizures with secondary generalisation. She was diagnosed to have porencephalic cyst in left posterior parietal lobe on brain imaging. She was started on anti-epileptic drugs and is on follow up.
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28379373/genetic-and-phenotypic-heterogeneity-suggest-therapeutic-implications-in-scn2a-related-disorders
#15
Markus Wolff, Katrine M Johannesen, Ulrike B S Hedrich, Silvia Masnada, Guido Rubboli, Elena Gardella, Gaetan Lesca, Dorothée Ville, Mathieu Milh, Laurent Villard, Alexandra Afenjar, Sandra Chantot-Bastaraud, Cyril Mignot, Caroline Lardennois, Caroline Nava, Niklas Schwarz, Marion Gérard, Laurence Perrin, Diane Doummar, Stéphane Auvin, Maria J Miranda, Maja Hempel, Eva Brilstra, Nine Knoers, Nienke Verbeek, Marjan van Kempen, Kees P Braun, Grazia Mancini, Saskia Biskup, Konstanze Hörtnagel, Miriam Döcker, Thomas Bast, Tobias Loddenkemper, Lily Wong-Kisiel, Friedrich M Baumeister, Walid Fazeli, Pasquale Striano, Robertino Dilena, Elena Fontana, Federico Zara, Gerhard Kurlemann, Joerg Klepper, Jess G Thoene, Daniel H Arndt, Nicolas Deconinck, Thomas Schmitt-Mechelke, Oliver Maier, Hiltrud Muhle, Beverly Wical, Claudio Finetti, Reinhard Brückner, Joachim Pietz, Günther Golla, Dinesh Jillella, Karen M Linnet, Perrine Charles, Ute Moog, Eve Õiglane-Shlik, John F Mantovani, Kristen Park, Marie Deprez, Damien Lederer, Sandrine Mary, Emmanuel Scalais, Laila Selim, Rudy Van Coster, Lieven Lagae, Marina Nikanorova, Helle Hjalgrim, G Christoph Korenke, Marina Trivisano, Nicola Specchio, Berten Ceulemans, Thomas Dorn, Katherine L Helbig, Katia Hardies, Hannah Stamberger, Peter de Jonghe, Sarah Weckhuysen, Johannes R Lemke, Ingeborg Krägeloh-Mann, Ingo Helbig, Gerhard Kluger, Holger Lerche, Rikke S Møller
Mutations in SCN2A, a gene encoding the voltage-gated sodium channel Nav1.2, have been associated with a spectrum of epilepsies and neurodevelopmental disorders. Here, we report the phenotypes of 71 patients and review 130 previously reported patients. We found that (i) encephalopathies with infantile/childhood onset epilepsies (≥3 months of age) occur almost as often as those with an early infantile onset (<3 months), and are thus more frequent than previously reported; (ii) distinct phenotypes can be seen within the late onset group, including myoclonic-atonic epilepsy (two patients), Lennox-Gastaut not emerging from West syndrome (two patients), and focal epilepsies with an electrical status epilepticus during slow sleep-like EEG pattern (six patients); and (iii) West syndrome constitutes a common phenotype with a major recurring mutation (p...
March 4, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28377246/awake-surgery-for-brain-vascular-malformations-and-moyamoya-disease
#16
Rami James N Aoun, Mithun G Sattur, Chandan Krishna, Amen Gupta, Matthew E Welz, Allan D Nanney, Antoun H Koht, Matthew C Tate, Katherine H Noe, Joseph I Sirven, Barrett J Anderies, Patrick B Bolton, Terry L Trentman, Richard S Zimmerman, Kristin R Swanson, Bernard R Bendok
OBJECTIVE: While a significant amount of experience has accumulated for awake procedures for brain tumor, epilepsy and carotid surgery, its utility for intracranial neurovascular indications remains largely undefined. Awake surgery, for select neurovascular cases, offers the advantage of precise brain mapping and robust neurological monitoring during surgery for lesions in eloquent areas, avoidance of potential hemodynamic instability, and possible faster recovery. Additionally, it opens the window for perilesional epileptogenic tissue resection with potentially less risk for iatrogenic injury...
April 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28374950/remission-in-epilepsy-how-long-is-enough
#17
Matti Sillanpää, Dieter Schmidt, Maiju M Saarinen, Shlomo Shinnar
OBJECTIVE: The International League Against Epilepsy (ILAE) has proposed to expand the definition of remission to 10 years seizure-free with the last 5 years off antiepileptic drugs (AEDs). We examined if a 10-year remission is needed to predict the lowest recurrence risk. METHODS: The population-based study cohort consisted of 148 patients with new-onset childhood epilepsy living in the catchment area of Turku University Hospital. They were prospectively followed for 44 years (median)...
April 4, 2017: Epilepsia
https://www.readbyqxmd.com/read/28373712/a-small-change-in-neuronal-network-topology-can-induce-explosive-synchronization-transition-and-activity-propagation-in-the-entire-network
#18
Zhenhua Wang, Changhai Tian, Mukesh Dhamala, Zonghua Liu
We here study explosive synchronization transitions and network activity propagation in networks of coupled neurons to provide a new understanding of the relationship between network topology and explosive dynamical transitions as in epileptic seizures and their propagations in the brain. We model local network motifs and configurations of coupled neurons and analyze the activity propagations between a group of active neurons to their inactive neuron neighbors in a variety of network configurations. We find that neuronal activity propagation is limited to local regions when network is highly clustered with modular structures as in the normal brain networks...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28348755/a-balamuthia-survivor
#19
Michael Eric Vollmer, Carol Glaser
INTRODUCTION: This case report describes a human survivor of Balamuthia mandrillaris infection. This is a free-living amoeba that can cause infection with the devastating consequence of near universally fatal encephalitis. We report this case to demonstrate the possibility of recovery. CASE PRESENTATION: A 26-year-old Hispanic male, a landscape gardener, presented to the hospital in March 2010 with a two month history of headache, visual disturbances and new-onset seizures...
June 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28343443/lacosamide-induced-recurrent-ventricular-tachycardia-in-the-acute-care-setting
#20
Theodore J Berei, Matthew P Lillyblad, Adrian K Almquist
Lacosamide is a new-generation antiepileptic drug (AED) most commonly used adjunctively in the setting of partial-onset seizures refractory to traditional therapy. We describe the first case report, to our knowledge, of a patient who developed recurrent, sustained ventricular tachycardia with multiple administrations of lacosamide in an acute setting. A 70-year-old woman with a history significant for valvular heart disease was admitted to the inpatient cardiology service for worsening heart failure. On hospital day 7, she received a bioprosthetic aortic valve...
January 1, 2017: Journal of Pharmacy Practice
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