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Occipital epilepsy

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https://www.readbyqxmd.com/read/28929921/clinical-implications-of-interictal-epileptiform-discharges-in-cognitive-functioning-in-cec-syndrome-with-evolution-into-epileptic-encephalopathy
#1
Paolo Bonanni, Susanna Negrin, Lisa Antoniazzi, Martina Da Rold, Franco Fabbro, Anna Serafini
In epileptic encephalopathies (EE), interictal epileptiform discharges (IEDs) contribute to cognitive impairment. The EE process has been studied in a patient affected by epilepsy with occipital calcification and celiac disease (CEC syndrome) by combining the administration of brain area stimulus specific (visual and auditory) reaction times (RT) during continuous EEG monitoring with the off-line reconstruction of auditory and visual evoked potentials (EP). Visual RT and VEP were abnormal only if recorded concomitantly to the IEDs...
September 20, 2017: Neurocase
https://www.readbyqxmd.com/read/28918128/whole-network-temporal-and-parietal-lobe-contributions-to-the-earliest-phases-of-language-production
#2
Alessandro Principe, Marco Calabria, Adrià Tauste Campo, Josephine Cruzat, Gerardo Conesa, Albert Costa, Rodrigo Rocamora
We investigated whether it is possible to study the network dynamics and the anatomical regions involved in the earliest moments of picture naming by using invasive electroencephalogram (EEG) traces to predict naming errors. Four right-handed participants with focal epilepsy explored with extensive stereotactic implant montages that recorded temporal, parietal and occipital regions -in two patients of both hemispheres-named a total of 228 black and white pictures in three different sessions recorded in different days...
August 24, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28891522/impairments-of-cingulated-cortex-in-the-generalized-tonic-clonic-seizure-epilepsy-by%C3%A2-combining-morphological-and-functional-connectivity-magnetic-resonance-imaging
#3
Ming Ke, Bixia Jin, Guangyao Liu, Xiaoping Yang
Previous studies suggested that the patients with generalized tonic-clonic seizure had structural abnormalities in the thalamus, cingulated cortex and some other specific brain regions. Concurrently, the abnormality in thalamocortical network and basal ganglia network has been found in idiopathic generalized epilepsy. The cingulated cortex, a nexus of information processing and regulation in human brain, is implicated in the propagation of generalized spike in IGE and the previous studies have suggested that the structural features and functional connectivity of the cingulated cortex have been changed...
2017: Journal of Integrative Neuroscience
https://www.readbyqxmd.com/read/28837072/understanding-the-epilepsy-in-polg-related-disease
#4
REVIEW
Omar Hikmat, Tom Eichele, Charalampos Tzoulis, Laurence A Bindoff
Epilepsy is common in polymerase gamma (POLG) related disease and is associated with high morbidity and mortality. Epileptiform discharges typically affect the occipital regions initially and focal seizures, commonly evolving to bilateral convulsive seizures which are the most common seizure types in both adults and children. Our work has shown that mtDNA depletion-i.e., the quantitative loss of mtDNA-in neurones is the earliest and most important factor of the subsequent development of cellular dysfunction...
August 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28836813/the-trip-of-a-lifetime-hallucinogen-persisting-perceptual-disorder
#5
Lauren Anderson, Hannah Lake, Mark Walterfang
OBJECTIVES: The differential diagnosis of psychotic symptoms is broad and extends beyond primary psychotic and affective disorders. We aim to illustrate that the chronology and phenomenological nature of hallucinatory symptoms may provide clues towards alternative diagnoses, such as hallucinogen persisting perceptual disorder (HPPD). We describe the resurgence of visual pseudo-hallucinations in a young woman in the context of previous substance-induced hallucinatory symptoms and a prior diagnosis of occipital lobe epilepsy...
August 1, 2017: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/28833053/a-distinct-clinicopathological-variant-of-focal-cortical-dysplasia-iiid-characterized-by-loss-of-layer-4-in-the-occipital-lobe-in-12-children-with-remote-hypoxic-ischemic-injury
#6
Dan-Dan Wang, Yue-Shan Piao, Ingmar Blumcke, Roland Coras, Wen-Jing Zhou, Qiu-Ping Gui, Cui-Cui Liu, Jing-Xia Hu, Li-Zhen Cao, Guo-Jun Zhang, De-Hong Lu
OBJECTIVE: In 2011, the International League Against Epilepsy (ILAE) proposed a consensus classification system of focal cortical dysplasia (FCD) to distinguish clinicopathological subtypes, for example, "isolated" FCD type Ia-c and IIa-b, versus "associated" FCD type IIIa-d. The histopathological differentiation of FCD type I and III variants remains, however, a challenging issue in everyday practice. We present a unique histopathological pattern in patients with difficult-to-diagnose FCD, which highlights this dilemma, but also helps to refine the current ILAE classification scheme of FCD...
August 23, 2017: Epilepsia
https://www.readbyqxmd.com/read/28832005/the-use-of-single-bipolar-scalp-derivation-for-the-detection-of-ictal-events-during-long-term-eeg-monitoring
#7
Frank C Bennis, Evelien E Geertsema, Demetrios N Velis, Elise Em Reus, Gerhard H Visser
Epilepsy is difficult to diagnose using routine EEG recordings of short duration in patients who have low seizure frequency. Long-term EEG may be useful but is impractical in an out-of-hospital setting. We investigated whether single-channel scalp EEG placed behind the earlobe is suitable for seizure identification during prolonged EEG monitoring. Scalp EEG samples were selected from subjects over 15 years of age, and comprised two segments of either background followed by seizure or background followed by background...
August 23, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28828916/magnetoencephalographic-identification-of-epileptic-focus-in-children-with-generalized-electroencephalographic-eeg-features-but-focal-imaging-abnormalities
#8
Garima Shukla, Jin Kazutaka, Ajay Gupta, John Mosher, Stephen Jones, Andreas Alexopoulos, Richard C Burgess
PURPOSE: Children with generalized seizures are often excluded as epilepsy surgery candidates. This prospective study was conducted to evaluate the utility of magnetoencephalography (MEG) to refine the location of the "irritative zone" in children with single lesions on magnetic resonance imaging (MRI) but with generalized ictal electroencephalographic (EEG) findings. METHODS: Patients admitted with refractory epilepsy with imaging studies showing focal or hemispheric abnormalities but scalp video EEG showing generalized or multiregional epileptiform abnormalities were included...
January 1, 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28774647/discrimination-of-a-medial-functional-module-within-the-temporal-lobe-using-an-effective-connectivity-model-a-ccep-study
#9
Julien Krieg, Laurent Koessler, Jacques Jonas, Sophie Colnat-Coulbois, Jean-Pierre Vignal, Christian G Bénar, Louis G Maillard
The temporal lobe is classically divided in two functional systems: the ventral visual pathway and the medial temporal memory system. However, their functional separation has been challenged by studies suggesting that the medial temporal lobe could be best understood as an extension of the hierarchically organized ventral visual pathway. Our purpose was to investigate (i) whether cerebral regions within the temporal lobe could be grouped into distinct functional assemblies, and (ii) which regions were central within these functional assemblies...
July 31, 2017: NeuroImage
https://www.readbyqxmd.com/read/28752060/sleep-onset-uncovers-thalamic-abnormalities-in-patients-with-idiopathic-generalised-epilepsy
#10
Andrew P Bagshaw, Joanne R Hale, Brunno M Campos, David T Rollings, Rebecca S Wilson, Marina K M Alvim, Ana Carolina Coan, Fernando Cendes
The thalamus is crucial for sleep regulation and the pathophysiology of idiopathic generalised epilepsy (IGE), and may serve as the underlying basis for the links between the two. We investigated this using EEG-fMRI and a specific emphasis on the role and functional connectivity (FC) of the thalamus. We defined three types of thalamic FC: thalamocortical, inter-hemispheric thalamic, and intra-hemispheric thalamic. Patients and controls differed in all three measures, and during wakefulness and sleep, indicating disorder-dependent and state-dependent modification of thalamic FC...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28741622/in-vivo-detection-of-cpp-115-target-engagement-in-human-brain
#11
Andrew P Prescot, Steven R Miller, Gary Ingenito, Rebekah S Huber, Douglas G Kondo, Perry F Renshaw
CPP-115, a next-generation γ-amino butyric acid (GABA)-aminotransferase (AT) inhibitor, shows comparable pharmacokinetics, improved safety and tolerability, and a more favorable toxicity profile when compared to vigabatrin. The pharmacodynamic characteristics of CPP-115 remain to be evaluated. The present study employed state-of-the-art proton magnetic resonance spectroscopy techniques to measure changes in brain GABA+ (the composite resonance of GABA, homocarnosine, and macromolecules) concentrations in healthy subjects receiving oral daily doses of CPP-115 or placebo...
July 25, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28734692/respiratory-arrest-at-the-onset-of-idiopathic-childhood-occipital-epilepsy-of-gastaut
#12
Keiko Funata, Tatsuhiko Shike, Toshiki Takenouchi, Yukio Yamashita, Takao Takahashi
Occipital lobe epilepsy of childhood includes two entities: Panayiotopoulos syndrome in pre-school children, and idiopathic childhood occipital epilepsy of Gastaut (ICOEG) in school-age children. The typical initial manifestation of the former is vomiting, and that of the latter is visual hallucinations. Ictal cardiopulmonary arrest at initial presentation has been reported for Panayiotopoulos syndrome, but not for ICOEG. We document a 7-year-old previously healthy girl who experienced an acute elemental visual hallucination of seeing insects, followed by a new-onset generalized seizure...
July 19, 2017: Brain & Development
https://www.readbyqxmd.com/read/28732257/epileptiform-discharges-in-eeg-and-seizure-risk-in-adolescent-children-of-women-with-epilepsy
#13
Joseph Samuel, Manna Jose, V S Nandini, Sanjeev V Thomas
We aimed to study the epileptiform discharges (ED) and seizure risk in EEG of 12-18-year-old children of women with epilepsy (WWE). Children of WWE who were prospectively followed up in the Kerala registry of epilepsy and pregnancy (KREP), aged 12-16years (n=92; males 48, females 44) underwent clinical evaluation and a 30-min digital 18-channel EEG. The EEG showed epileptiform discharges in 13 children (5 males and 8 females). The EDs were generalized in 9 and focal in 4 (occipital 2, frontal 1, and centroparietal 1)...
July 17, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28699152/-characteristics-of-structural-injuries-in-pediatric-patients-with-focal-epilepsy-in-a-honduran-hospital
#14
A Ramirez-Izcoa, D Varela-Gonzalez, M I Fonseca
INTRODUCTION: Epilepsy is the most commonly occurring neurological disorder in the world. The study of structural brain lesions is important to understand the secondary complications. In Honduras there is little information on this topic. AIM: To determine the characteristics and proportion of structural brain lesions in paediatric patients with focal epilepsy at the Hospital Escuela Universitario. PATIENTS AND METHODS: A descriptive, cross-sectional, retrospective-prospective study...
August 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28697467/smoking-prevalence-and-seizure-control-in-chinese-males-with-epilepsy
#15
Hui Gao, Josemir W Sander, Xudong Du, Jiani Chen, Cairong Zhu, Dong Zhou
Smoking has a negative effect on most diseases, yet it is under-investigated in people with epilepsy; thus its role is not clear in the general population with epilepsy. We performed a retrospective pilot study on males with epilepsy to determine the smoking rate and its relationship with seizure control using univariate analysis to calculate odds ratios (ORs) and also used a multi-variate logistic regression model. The smoking rate in our sample of 278 individuals was 25.5%, which is lower than the general Chinese population smoking rate among males of 52...
July 7, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28675420/seizure-associated-aphasia-has-good-lateralizing-but-poor-localizing-significance
#16
Anna Mira Loesch, Hannah Steger, Claudia Losher, Elisabeth Hartl, Jan Rémi, Christian Vollmar, Soheyl Noachtar
OBJECTIVE: To investigate the occurrence of ictal and postictal aphasia in different focal epilepsy syndromes. METHODS: We retrospectively analyzed the video-electroencephalographic monitoring data of 1,118 patients with focal epilepsy for seizure-associated aphasia (SAA). Statistical analysis included chi-square analysis and Fisher's exact test. RESULTS: We identified 102 of 1,118 patients (9.1%) in whom ictal or postictal aphasia (SAA) was part of their recorded seizures (n = 59 of 102; 57...
September 2017: Epilepsia
https://www.readbyqxmd.com/read/28673669/cerebral-venous-sinus-thrombosis-complicated-with-acute-development-of-dural-arteriovenous-fistula-a-case-report
#17
Ji-Gang Chen, Zhen-Xing Li, Dan-Feng Zhang, Jun-Yu Wang, Li-Jun Hou
Development of dural arteriovenous fistula (dAVF) after cerebral venous sinus thrombosis (CVST) was very uncommon and for all these reported cases, the dAVF was a chronic complication. We present a case of acute development of dAVF after CVST. A 40-year-old female was admitted into our department with 2day's headache and vomiting for 9h. Head computed tomography (CT) scan showed only scattered minor hematomas over the right frontal lobe. Blood test indicated an elevated D-dimer. The patient experienced transient paralysis (Todd's paralysis) after intermittent focal epilepsy from day 3, which progressed into sustained epilepsy on day 6...
October 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28655752/occipital-epilepsy-the-great-mimicker-case-report-and-review-for-the-pediatrician
#18
Svetlana Melamed, Lubov Romantseva
No abstract text is available yet for this article.
July 2017: Hospital Pediatrics
https://www.readbyqxmd.com/read/28623837/abnormal-asymmetry-in-benign-epilepsy-with-unilateral-and-bilateral-centrotemporal-spikes-a-combined-fmri-and-dti-study
#19
Weifang Cao, Yaodan Zhang, Changyue Hou, Fei Yang, Jinnan Gong, Sisi Jiang, Yue Huang, Ruhui Xiao, Cheng Luo, Xiaoming Wang, Dezhong Yao
Benign epilepsy with centrotemporal spikes (BECTS) is the most common idiopathic focal childhood epilepsy associated with either unilateral or bilateral epileptic discharge. Asymmetry as an important characteristic of the human brain is beneficial for brain functions. However, little is known about on asymmetry of BECTS patients with different epileptic spikes pattern. In the present study, we investigated functional and structural asymmetries in unilateral spikes BECTS (U_BECTS) patients and bilateral spikes BECTS (B_BECTS) patients using resting state functional magnetic resonance images and diffusion tensor imaging...
June 8, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28623069/neonatal-hypoglycemia-a-wide-range-of-electroclinical-manifestations-and-seizure-outcomes
#20
Ebru Arhan, Zeynep Öztürk, Ayşe Serdaroğlu, Kürşad Aydın, Tuğba Hirfanoğlu, Yılmaz Akbaş
PURPOSE: We examined the various types of epilepsy in children with neonatal hypoglycemia in order to define electroclinical and prognostic features of these patients. METHOD: We retrospectively reviewed the medical records of patients with a history of symptomatic neonatal hypoglycaemia who have been followed at Gazi University Hospital Pediatric Neurology Department between 2006 and 2015. Patients with perinatal asphyxia were excluded. Details of each patient's perinatal history, neurological outcome, epilepsy details, seizure outcome and EEG and brain MRI findings were reviewed...
June 1, 2017: European Journal of Paediatric Neurology: EJPN
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