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Non Epileptic Seizures

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https://www.readbyqxmd.com/read/27924180/magnetic-resonance-spectroscopy-and-single-photon-emission-computed-tomography-in-the-evaluation-of-cerebral-tumors-a-case-report
#1
Ioannis Siasios, Varvara Valotassiou, Eftychia Kapsalaki, Ioannis Tsougos, Panagiotis Georgoulias, Aggeliki Fotiadou, Maria Ioannou, Georgios Koukoulis, Vassilios Dimopoulos, Kostas Fountas
In their daily clinical practice, physicians have to confront diagnostic dilemmas which cannot be resolved by the application of only one imaging technique. In this case report, we present a 66-year-old woman who was admitted to our institution for the surgical resection of a recently diagnosed brain tumor. The patient had a history of epileptic seizures and was hospitalized in the past for anti-phospholipid syndrome related to a non-Hodgkin lymphoma in remission. Magnetic resonance imaging (MRI) examination revealed an enhancing right parasagittal lesion with significant edema suggestive of a high grade glioma...
January 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27923529/total-corpus-callosotomy-for-epileptic-spasms-after-acute-encephalopathy-with-biphasic-seizures-and-late-reduced-diffusion-aesd-in-a-case-with-tuberous-sclerosis-complex
#2
Tohru Okanishi, Ayataka Fujimoto, Hirotaka Motoi, Sotaro Kanai, Mitsuyo Nishimura, Tomohiro Yamazoe, Atsushi Takagi, Takamichi Yamamoto, Hideo Enoki
Corpus callosotomy is a palliative therapy for refractory epilepsy, including West syndrome, without a resectable epileptic focus. The surgical outcome of corpus callosotomy is relatively favorable in cryptogenic (non-lesional) West syndrome. Tuberous sclerosis complex (TSC) is a disorder that frequently leads to the development of refractory seizures by multiple cortical tubers. The multiple cortical tubers cause multiple or wide epileptic networks in these cases. Most of West syndrome cases in TSC with multiple tubers need additional resective surgery after corpus callosotomy...
December 3, 2016: Brain & Development
https://www.readbyqxmd.com/read/27908324/-psychotherapeutic-treatment-of-psychogenic-non-epileptic-seizures
#3
Dröfn Hilmarsdóttir, Steffen Birk, Charlotte Ulrikka Rask
Psychogenic non-epileptic seizures (PNES) are seizures which clinically resemble epileptic seizures but are without concurrent abnormal electrical charges. Though PNES can be just as serious and disabling as epileptic seizures, specific treatment guidelines are lacking, and different types of treatments are used. In this article we address the current research on psychotherapeutic treatment for PNES by discussing recent reviews and six randomized controlled trials (RCTs) on the subject. In conclusion, larger well-designed RCTs are needed in order to support the evidence for psychological interventions for this patient group...
November 28, 2016: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/27905566/early-onset-epileptic-encephalopathy-caused-by-a-reduced-sensitivity-of-kv7-2-potassium-channels-to-phosphatidylinositol-4-5-bisphosphate
#4
Maria Virginia Soldovieri, Paolo Ambrosino, Ilaria Mosca, Michela De Maria, Edoardo Moretto, Francesco Miceli, Alessandro Alaimo, Nunzio Iraci, Laura Manocchio, Alessandro Medoro, Maria Passafaro, Maurizio Taglialatela
Kv7.2 and Kv7.3 subunits underlie the M-current, a neuronal K(+) current characterized by an absolute functional requirement for phosphatidylinositol 4,5-bisphosphate (PIP2). Kv7.2 gene mutations cause early-onset neonatal seizures with heterogeneous clinical outcomes, ranging from self-limiting benign familial neonatal seizures to severe early-onset epileptic encephalopathy (Kv7.2-EE). In this study, the biochemical and functional consequences prompted by a recurrent variant (R325G) found independently in four individuals with severe forms of neonatal-onset EE have been investigated...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27898362/psychogenic-non-epileptic-seizure-in-patients-with-intellectual-disability-with-special-focus-on-choice-of-therapeutic-intervention
#5
Kousuke Kanemoto, Hiroko Goji, Yukari Tadokoro, Etsushi Kato, Tomohiro Oshima
PURPOSE: There have been a number of studies exploring treatments for psychogenic non-epileptic seizure (PNES) but largely neglecting the sizable subgroup of patients with intellectual disability (ID). In the present study, we attempted to demonstrate effects and preferred modes of therapeutic intervention in PNES patients with ID being treated at a Japanese municipal center with a short referral chain. METHODS: We examined 46 PNES patients with ID (ID group) and 106 PNES patients without ID (non-ID group) retrospectively in case charts...
November 14, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27893495/integration-of-eeg-into-psychiatric-practice-a-step-toward-precision-medicine-for-autism-spectrum-disorder
#6
Ronald J Swatzyna, Jay D Tarnow, Robert P Turner, Alexandra J Roark, Erin K MacInerney, Gerald P Kozlowski
INTRODUCTION: Data from an EEG is not commonly used by psychiatrists to plan treatment and medication. However, EEG abnormalities such as isolated epileptiform discharges (IEDs) are found to be more prevalent in psychiatric patients, particularly those diagnosed with Autism Spectrum Disorder (ASD). Most medications prescribed for ASD lower seizure threshold and increase side-effects. Therefore, it may be prudent to order an EEG for ASD cases, especially those categorized as refractory...
November 22, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27883965/frequency-independent-characteristics-of-high-frequency-oscillations-in-epileptic-and-non-epileptic-regions
#7
Martin Pail, Pavel Řehulka, Jan Cimbálník, Irena Doležalová, Jan Chrastina, Milan Brázdil
OBJECTIVE: The purpose of the presented study is to determine whether there are frequency-independent high-frequency oscillation (HFO) parameters which may differ in epileptic and non-epileptic regions. METHODS: We studied 31 consecutive patients with medically intractable focal (temporal and extratemporal) epilepsies who were examined by either intracerebral or subdural electrodes. Automated detection was used to detect HFO. The characteristics (rate, amplitude, and duration) of HFO were statistically compared within three groups: the seizure onset zone (SOZ), the irritative zone (IZ), and areas outside the IZ and SOZ (nonSOZ/nonIZ)...
October 29, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27871881/targeting-brain-and-peripheral-plasticity-of-the-lipidome-in-acute-kainic-acid-induced-epileptic-seizures-in-mice-via-quantitative-mass-spectrometry
#8
Raissa Lerner, Julia Post, Sebastian Loch, Beat Lutz, Laura Bindila
Epilepsy is a highly common chronic neurological disorder, manifested in many different types, affecting ~1% of the worldwide human population. The molecular mechanisms of epileptogenesis has not yet been clarified, and pharmacoresistance exhibited by 30-40% of epilepsy patients remains a major obstacle in medical care. Growing evidence indicates a role of lipid signalling pathways in epileptogenesis, thus lipid signals emerge as potential biomarkers for the onset and evolving course of the epileptic disorder, as well as potential therapeutic agents and targets...
November 15, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27865920/temporally-correlated-fluctuations-drive-epileptiform-dynamics
#9
Maciej Jedynak, Antonio J Pons, Jordi Garcia-Ojalvo, Marc Goodfellow
Macroscopic models of brain networks typically incorporate assumptions regarding the characteristics of afferent noise, which is used to represent input from distal brain regions or ongoing fluctuations in non-modelled parts of the brain. Such inputs are often modelled by Gaussian white noise which has a flat power spectrum. In contrast, macroscopic fluctuations in the brain typically follow a 1/f(b) spectrum. It is therefore important to understand the effect on brain dynamics of deviations from the assumption of white noise...
November 16, 2016: NeuroImage
https://www.readbyqxmd.com/read/27863319/aberrant-gamma-band-cortical-sources-and-functional-connectivity-in-adolescents-with-psychogenic-non-epileptic-seizures-a-preliminary-report
#10
Shreekantiah Umesh, Sai Krishna Tikka, Nishant Goyal, Vinod Kumar Sinha, Shamshul Haque Nizamie
Psychogenic non-epileptic seizures (PNES) resemble epileptic seizures, but lack clinically evident abnormal electrical activity in the brain. We aimed to assess resting gamma spectral power, current source distribution and functional connectivity in adolescents with PNES. Interictal, 32 channels electroencephalographic recording of 15 adolescents with PNES was compared with 10 matched healthy controls. Spectral power, current source distribution and lagged linear coherence were assessed. Statistically significant gamma spectral power, cortical sources and connectivity pattern was found in some brain areas...
November 10, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27861722/epilepsy-and-adverse-quality-of-life-in-surgically-resected-meningioma
#11
M J Tanti, A G Marson, M D Jenkinson
OBJECTIVES: Meningiomas are common intracranial tumors, and despite surgery or therapy with anti-epileptic drugs (AEDs), many patients suffer from seizures. Epilepsy has a significant impact on quality of life (QoL) in non-tumor populations, but the impact of epilepsy on QoL in patients with meningioma is unknown. Our aim was to evaluate the impact of epilepsy on QoL in patients that have undergone resection of a benign meningioma. MATERIALS AND METHODS: We recruited meningioma patients without epilepsy (n=109), meningioma patients with epilepsy (n=56), and epilepsy patients without meningioma (n=64)...
November 14, 2016: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/27858966/changes-in-interleukin-6-levels-during-electroconvulsive-therapy-may-reflect-the-therapeutic-response-in-major-depression
#12
K Järventausta, A Sorri, O Kampman, M Björkqvist, K Tuohimaa, M Hämäläinen, E Moilanen, E Leinonen, J Peltola, K Lehtimäki
OBJECTIVE: Interleukin-6 (IL-6) has been reported to be elevated in major depressive disorder (MDD) but decreased by antidepressive medication. IL-6 levels are markedly elevated both after epileptic seizures and single electroconvulsive therapy (ECT) session, but long-term changes in IL-6 levels after ECT have not been studied. The correlation between immediate and long-term changes in proinflammatory cytokines and outcome after ECT was investigated. METHOD: Thirty patients suffering from MDD participated in the study...
November 14, 2016: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/27845151/data-fusion-for-paroxysmal-events-classification-from-eeg
#13
Evangelia Pippa, Evangelia I Zacharaki, Michael Koutroumanidis, Vasileios Megalooikonomou
BACKGROUND: Spatiotemporal analysis of electroencephalography is commonly used for classification of events since it allows capturing dependencies across channels. The significant increase of feature vector dimensionality however introduce noise and thus it does not allow the classification models to be trained using a limited number of samples usually available in clinical studies. NEW METHOD: Thus, we investigate the classification of epileptic and non-epileptic events based on temporal and spectral analysis through the application of three different fusion schemes for the combination of information across channels...
November 11, 2016: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27818368/psychogenic-non-epileptic-seizures
#14
Robert C Doss, W Curt LaFrance
Psychogenic non-epileptic seizures (PNES) are diagnosed in at least 10-40% of the patients seen for long-term monitoring of epilepsy, and it is no surprise that patients with PNES are often treated for epilepsy. Given the substantial economic costs and mental health burden of misdiagnosis, it is imperative to establish early identification, correct diagnosis, and effective treatment of PNES in order to provide the greatest opportunity for remission of events, improved psychological functioning, and social-vocational outcome...
November 4, 2016: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/27817982/from-genotype-to-phenotype-in-dravet-disease
#15
Svetlana Gataullina, Olivier Dulac
Dravet syndrome combines clonic generalized, focal or unilateral seizures, beginning within the first year of life, often triggered by hyperthermia whatever its cause, including pertussis vaccination. Long-lasting febrile seizures are frequent in infancy and repeat status epilepticus (SE) has negative prognostic value. Massive myoclonus, rare absences, complex partial seizures and generalized spikes may appear several years later. Myoclonic status may occur in childhood, but acute encephalopathy with febrile SE followed by ischemic lesions and psychomotor impairment, the most severe condition, occurs mainly within the first five years of life...
October 21, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27816898/epilepsy-in-ring-chromosome-20-syndrome
#16
Aglaia Vignoli, Francesca Bisulli, Francesca Darra, Massimo Mastrangelo, Carmen Barba, Lucio Giordano, Katherine Turner, Elena Zambrelli, Valentina Chiesa, Stefania Bova, Isabella Fiocchi, Angela Peron, Ilaria Naldi, Giuseppe Milito, Laura Licchetta, Paolo Tinuper, Renzo Guerrini, Bernardo Dalla Bernardina, Maria Paola Canevini
OBJECTIVE: Ring chromosome 20 syndrome is characterized by severe, drug resistant childhood onset epilepsy, often accompanied by cognitive impairment. We characterized the electro-clinical phenotype and the long-term course of epilepsy in a large series. METHODS: We reviewed the electro-clinical phenotype of 25 patients (aged 8-59 years), and assessed the relationship between epilepsy severity and clinical and/or genetic variables. We also searched for reports of patients diagnosed with r(20) syndrome in the literature, included those whose clinical information was sufficiently accurate, and compared their clinical features with the ones of our patients...
December 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27816897/epileptic-networks-in-patients-with-bitemporal-epilepsy-the-role-of-seeg-for-the-selection-of-good-surgical-candidates
#17
REVIEW
L Di Vito, F Mauguière, H Catenoix, S Rheims, P Bourdillon, A Montavont, J Isnard
OBJECTIVE: In this study we investigated the electrical characteristics of seizures recorded by stereo-EEG (SEEG) in a cohort of patients with bitemporal lobe epilepsy (BTLE), in the attempt to verify the presence/absence of different seizure patterns and to identify good surgical candidates. METHODS: We retrospectively reviewed 14 consecutive patients with medically refractory BTLE confirmed by scalp video-EEG (VEEG) recording of bitemporal independent or non-lateralizing seizure onset...
December 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27805721/treatment-of-epilepsy-for-people-with-alzheimer-s-disease
#18
REVIEW
Jia Liu, Lu-Ning Wang, Li-Yong Wu, Yu-Ping Wang
BACKGROUND: Any type of seizure can be observed in Alzheimer's disease (AD). Antiepileptic drugs seem to prevent the recurrence of epileptic seizures in most people with AD. There are pharmacological and non-pharmacological treatments for epilepsy in people with AD. There are no current systematic reviews to evaluate the efficacy and tolerability of the treatment. This review aims to review those different modalities. OBJECTIVES: To assess the efficacy and tolerability of the treatment of epilepsy for people with Alzheimer's disease (AD) (including sporadic AD and dominantly inherited AD)...
November 2, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27781027/understanding-genotypes-and-phenotypes-in-epileptic-encephalopathies
#19
REVIEW
Ingo Helbig, Abou Ahmad N Tayoun
Epileptic encephalopathies are severe often intractable seizure disorders where epileptiform abnormalities contribute to a progressive disturbance in brain function. Often, epileptic encephalopathies start in childhood and are accompanied by developmental delay and various neurological and non-neurological comorbidities. In recent years, this concept has become virtually synonymous with a group of severe childhood epilepsies including West syndrome, Lennox-Gastaut syndrome, Dravet syndrome, and several other severe childhood epilepsies for which genetic factors are increasingly recognized...
September 2016: Molecular Syndromology
https://www.readbyqxmd.com/read/27769876/seizure-specific-wavelet-seizlet-design-for-epileptic-seizure-detection-using-correntropy-ellipse-features-based-on-seizure-modulus-maximas-patterns
#20
Morteza Behnam, Hossein Pourghassem
BACKGROUND: EEG signal analysis of pediatric patients plays vital role for making a decision to intervene in presurgical stages. NEW METHOD: In this paper, an offline seizure detection algorithm based on definition of a seizure-specific wavelet (Seizlet) is presented. After designing the Seizlet, by forming cone of influence map of the EEG signal, four types of layouts are analytically designed that are called Seizure Modulus Maximas Patterns (SMMP). By mapping CorrEntropy Induced Metric (CIM) series, four structural features based on least square estimation of fitted non-tilt conic ellipse are extracted that are called CorrEntropy Ellipse Features (CEF)...
October 18, 2016: Journal of Neuroscience Methods
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