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Non Epileptic Seizures

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https://www.readbyqxmd.com/read/28209153/a-prospective-observational-longitudinal-study-of-new-onset-seizures-and-newly-diagnosed-epilepsy-in-dogs
#1
N Fredsø, N Toft, A Sabers, M Berendt
BACKGROUND: Seizures are common in dogs and can be caused by non-epileptic conditions or epilepsy. The clinical course of newly diagnosed epilepsy is sparsely documented. The objective of this study was to prospectively investigate causes for seizures (epileptic and non-epileptic) in a cohort of dogs with new-onset untreated seizures, and for those dogs with newly diagnosed epilepsy to investigate epilepsy type, seizure type and the course of disease over time, including the risk of seizure recurrence...
February 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28202220/diagnostic-yield-of-ambulatory-eegs-in-the-elderly
#2
Benjamin Tolchin, Jong Woo Lee, Milena Pavlova, Barbara A Dworetzky, Rani A Sarkis
OBJECTIVE: The diagnostic yield of ambulatory EEG in the elderly is not known. We sought to determine diagnostic yield and identify factors predicting diagnostic findings in this elderly population. METHODS: We reviewed 156 consecutive 24-72h ambulatory EEGs performed on patients aged 60 or older. RESULTS: Of the 156 studies, 58 studies (37%) revealed potentially diagnostic findings: either epileptiform discharges, an epileptic seizure, or a typical nonepileptic event...
January 29, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28194648/epileptic-seizure-classifications-of-single-channel-scalp-eeg-data-using-wavelet-based-features-and-svm
#3
Suparerk Janjarasjitt
In this study, wavelet-based features of single-channel scalp EEGs recorded from subjects with intractable seizure are examined for epileptic seizure classification. The wavelet-based features extracted from scalp EEGs are simply based on detail and approximation coefficients obtained from the discrete wavelet transform. Support vector machine (SVM), one of the most commonly used classifiers, is applied to classify vectors of wavelet-based features of scalp EEGs into either seizure or non-seizure class. In patient-based epileptic seizure classification, a training data set used to train SVM classifiers is composed of wavelet-based features of scalp EEGs corresponding to the first epileptic seizure event...
February 13, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28194612/simultaneous-intracranial-eeg-fmri-shows-inter-modality-correlation-in-time-resolved-connectivity-within-normal-areas-but-not-within-epileptic-regions
#4
Ben Ridley, Jonathan Wirsich, Gaelle Bettus, Roman Rodionov, Teresa Murta, Umair Chaudhary, David Carmichael, Rachel Thornton, Serge Vulliemoz, Andrew McEvoy, Fabrice Wendling, Fabrice Bartolomei, Jean-Philippe Ranjeva, Louis Lemieux, Maxime Guye
For the first time in research in humans, we used simultaneous icEEG-fMRI to examine the link between connectivity in haemodynamic signals during the resting-state (rs) and connectivity derived from electrophysiological activity in terms of the inter-modal connectivity correlation (IMCC). We quantified IMCC in nine patients with drug-resistant epilepsy (i) within brain networks in 'healthy' non-involved cortical zones (NIZ) and (ii) within brain networks involved in generating seizures and interictal spikes (IZ1) or solely spikes (IZ2)...
February 13, 2017: Brain Topography
https://www.readbyqxmd.com/read/28179547/suppression-of-epileptic-seizures-via-anderson-localization
#5
Benjamin J Zhang, Maysamreza Chamanzar, Mohammad-Reza Alam
Here we show that brain seizures can be effectively suppressed through random modulation of the brain medium. We use an established mesoscale cortical model in the form of a system of coupled stochastic partial differential equations. We show that by temporal and spatial randomization of parameters governing the firing rates of the excitatory and inhibitory neuron populations, seizure waves can be significantly suppressed. We find that the attenuation is the most effective when applied to the mean threshold potential...
February 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28174612/classification-of-epileptic-seizures-using-wavelet-packet-log-energy-and-norm-entropies-with-recurrent-elman-neural-network-classifier
#6
S Raghu, N Sriraam, G Pradeep Kumar
Electroencephalogram shortly termed as EEG is considered as the fundamental segment for the assessment of the neural activities in the brain. In cognitive neuroscience domain, EEG-based assessment method is found to be superior due to its non-invasive ability to detect deep brain structure while exhibiting superior spatial resolutions. Especially for studying the neurodynamic behavior of epileptic seizures, EEG recordings reflect the neuronal activity of the brain and thus provide required clinical diagnostic information for the neurologist...
February 2017: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/28173825/myoclonic-seizure-prior-to-diagnosis-of-chronic-toxic-encephalopathy-a-case-report
#7
Wim L C Van Hooste
BACKGROUND: "Thinner" is a widely used industrial mixture of organic solvents. Exposure to organic solvents is usually not considered to be a possible cause of epilepsy, despite descriptions of toxic effects on the central nervous system. There are only a few reports about a possible epileptogenic effect of organic solvents exposure. We report a case of myoclonic seizure at the workplace that shows a remarkable coincidence between exposure to a thinner mixture and the occurrence of an epileptic seizure...
February 7, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28169020/description-of-stroke-mimics-after-complete-neurovascular-assessment
#8
C Avellaneda-Gómez, A Rodríguez Campello, E Giralt Steinhauer, A Gómez González, M Serra Martínez, P de Ceballos Cerrajería, A Zabalza de Torres, E Cuadrado-Godia, A Ois Santiago, J Jiménez-Conde, J Roquer
INTRODUCTION: A considerable percentage of events initially diagnosed as ischaemic stroke have non-cerebrovascular causes; these are called stroke mimics (SM). Currently available evidence about these events is heterogeneous and comes from studies with small samples. OBJECTIVE: The purpose of our study is to identify conditions that may present as SM, define their epidemiological and clinical characteristics, and determine the percentage of cases of SM treated with intravenous fibrinolysis...
February 4, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28163158/neuron-subset-specific-pten-deletion-induces-abnormal-skeletal-activity-in-mice
#9
Joaquin N Lugo, Marjorie H Thompson, Philippe Huber, Gregory Smith, Ronald Y Kwon
Individuals with a history of epilepsy are at higher risk for bone fractures compared to the general population. Although clinical studies support an association between low bone mineral density (BMD) and anti-seizure medications, little is known on whether a history of seizures is linked to altered bone health. Therefore, in this study we tested the hypothesis that bone mass, morphology, and bone mineralization are altered by seizures in genetically epileptic animals and in animals subjected to an episode of status epilepticus...
February 2, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28162058/prevalence-of-epilepsy-in-74-949-school-children-in-khartoum-state-sudan
#10
Inaam N Mohamed, Maha A Elseed, Ahlam A Hamed, Manar E Abdel-Rahman, Sarah M El-Sadig, Ilham M Omer, Abdelgadir H Osman, Ammar E Ahmed, Zein A Karrar, Mustafa A Salih
BACKGROUND: Data on childhood epilepsy in Sudan are scarce and the only published study on its prevalence was published in 1983. This study aimed to determine the current prevalence of epilepsy in school children in Khartoum State. METHODS: This is an analytical population-based, cross-sectional study conducted in Khartoum State, Sudan. The study included students in the basic (primary) schools aged 6-14 years. Simple random sampling was used to draw a cluster of four of the seven localities comprising Khartoum State...
February 6, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28149289/pore-forming-proteins-as-mediators-of-novel-epigenetic-mechanism-of-epilepsy
#11
Andrei Surguchov, Irina Surgucheva, Mukut Sharma, Ram Sharma, Vikas Singh
Epilepsy is a disorder of the brain characterized by an enduring predisposition to generate epileptic seizures. In the last two decades, numerous gene defects underlying different forms of epilepsy have been identified with most of these genes encoding ion channel proteins. Despite these developments, the etiology of majority of non-familial epilepsies has no known associated genetic mutations and cannot be explained by defects in identified ion channels alone. We hypothesize that de novo formation of ion channels by naturally unfolded proteins (NUPs) increases neuronal excitability...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28127975/heart-rate-variability-as-a-biomarker-for-epilepsy-seizure-prediction
#12
M K Moridani, H Farhadi
OBJECTIVE: Epilepsy is a neurological disorder that causes seizures of many different types. Recent research has shown that epileptic seizures can be predicted by using the electrocardiogrami instead of the electroencephalogram. In this study, we used the heart rate variability that is generated by the fluctuating balance of sympathetic and parasympathetic nervous systems to predict epileptic seizures. METHODS: We studied 11 epilepsy patients to predict the seizure interval...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28110729/epileptic-seizure-detection-in-eeg-signals-using-tunable-q-factor-wavelet-transform-and-bootstrap-aggregating
#13
Ahnaf Rashik Hassan, Siuly Siuly, Yanchun Zhang
BACKGROUND AND OBJECTIVE: Epileptic seizure detection is traditionally performed by expert clinicians based on visual observation of EEG signals. This process is time-consuming, burdensome, reliant on expensive human resources, and subject to error and bias. In epilepsy research, on the other hand, manual detection is unsuitable for handling large data-sets. A computerized seizure identification scheme can eradicate the aforementioned problems, aid clinicians, and benefit epilepsy research...
December 2016: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28110410/neurophysiological-assessment-of-brain-dysfunction-in-critically-ill-patients-an-update
#14
REVIEW
Eric Azabou, Catherine Fischer, Jean Michel Guerit, Djillali Annane, François Mauguiere, Fréderic Lofaso, Tarek Sharshar
The aim of this review was to provide up-to-date information about the usefulness of clinical neurophysiology testing in the management of critically ill patients. Evoked potentials (EPs) and electroencephalogram (EEG) are non-invasive clinical neurophysiology tools that allow an objective assessment of the central nervous system's function at the bedside in intensive care unit (ICU). These tests are quite useful in diagnosing cerebral complications, and establishing the vital and functional prognosis in ICU...
January 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28109986/comparative-prediction-of-nonepileptic-events-using-mmpi-2-clinical-scales-harris-lingoes-subscales-and-restructured-clinical-scales
#15
Karim Z Yamout, Robin J Heinrichs, Lyle E Baade, Dana K Soetaert, Kore K Liow
The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is a psychological testing tool used to measure psychological and personality constructs. The MMPI-2 has proven helpful in identifying individuals with nonepileptic events/nonepileptic seizures. However, the MMPI-2 has had some updates that enhanced its original scales. The aim of this article was to test the utility of updated MMPI-2 scales in predicting the likelihood of non-epileptic seizures in individuals admitted to an EEG video monitoring unit...
January 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28101479/excessive-daytime-sleepiness-and-sleep-disorders-in-a-population-of-patients-with-epilepsy-a-case-control-study
#16
Matilde Gammino, Leila Zummo, Anna Lo Bue, Lidia Urso, Valeria Terruso, Oreste Marrone, Brigida Fierro, Ornella Daniele
BACKGROUND AND PURPOSE: There are several primary causes for excessive daytime sleepiness (EDS) and sleep disorders in patients with epilepsy. Up to now, studies in the literature report conflicting data in terms of both prevalence and aetiology. The aim of our study was therefore to evaluate the prevalence of EDS and some sleep disorders in a population of patients with epilepsy treated with no more than two antiepileptic drugs (AEDs). We also investigated the role of the depression of mood as a variable that can negatively affect EDS...
December 2016: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/28101475/anticonvulsive-effects-of-licofelone-on-status-epilepticus-induced-by-lithium-pilocarpine-in-wistar-rats-a-role-for-inducible-nitric-oxide-synthase
#17
Seyyed Majid Eslami, Mohammad Mobin Moradi, Mehdi Ghasemi, Ahmad Reza Dehpour
BACKGROUND AND PURPOSE: Status epilepticus (SE) is a neurological disorder with high prevalence and mortality rates, requiring immediate intervention. Licofelone is a cyclooxygenase (COX) and 5-lipoxygenase (5-LOX) inhibitor, which its effectiveness to treat osteoarthritis has been approved. Increasing evidence suggests an involvement of COX and LOX enzymes in epileptic disorders. Thus, in the present study we investigate possible effects of licofelone on prevention and termination of SE...
December 2016: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/28078614/resistance-exercise-reduces-seizure-occurrence-attenuates-memory-deficits-and-restores-bdnf-signaling-in-rats-with-chronic-epilepsy
#18
Alexandre Aparecido de Almeida, Sérgio Gomes da Silva, Glauber Menezes Lopim, Diego Vannucci Campos, Jansen Fernandes, Francisco Romero Cabral, Ricardo Mario Arida
Epilepsy is a disease characterized by recurrent, unprovoked seizures. Cognitive impairment is an important comorbidity of chronic epilepsy. Human and animal model studies of epilepsy have shown that aerobic exercise induces beneficial structural and functional changes and reduces the number of seizures. However, little is yet understood about the effects of resistance exercise on epilepsy. We evaluated the effects of a resistance exercise program on the number of seizures, long-term memory and expression/activation of signaling proteins in rats with epilepsy...
January 11, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28074997/-classification-of-idiopathic-generalised-epilepsies-in-patients-over-16-years-of-age
#19
J Sala-Padro, M Toledo, E Santamarina, M Gonzalez-Cuevas, M Raspall-Chaure, M Sueiras-Gil, M Quintana, J Salas-Puig
INTRODUCTION: Idiopathic generalised epilepsies (IGE) are a set of electroclinical syndromes with different phenotypes. Our aim is to analyse those phenotypes in patients over 16 years of age. PATIENTS AND METHODS: We conducted a retrospective analysis of a series of patients with IGE. They were classified as childhood absence epilepsy (CAE), juvenile absence epilepsy (JAE), juvenile myoclonic epilepsy (JME), epilepsy with tonic-clonic seizures only (TCSE), epilepsy with eyelid myoclonias and absences (EMA) and pure photogenic epilepsy (PE)...
January 16, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28065191/dissociation-in-patients-with-dissociative-seizures-relationships-with-trauma-and-seizure-symptoms
#20
S Pick, J D C Mellers, L H Goldstein
BACKGROUND: This study aimed to extend the current understanding of dissociative symptoms experienced by patients with dissociative (psychogenic, non-epileptic) seizures (DS), including psychological and somatoform types of symptomatology. An additional aim was to assess possible relationships between dissociation, traumatic experiences, post-traumatic symptoms and seizure manifestations in this group. METHOD: A total of 40 patients with DS were compared with a healthy control group (n = 43), matched on relevant demographic characteristics...
January 9, 2017: Psychological Medicine
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