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https://www.readbyqxmd.com/read/27919023/does-pain-sensitivity-change-by-migraine-phase-a-blinded-longitudinal-study
#1
Martin Uglem, Petter Moe Omland, Kristian Bernhard Nilsen, Erling Tronvik, Lars Jacob Stovner, Knut Hagen, Mattias Linde, Trond Sand
OBJECTIVE: Studies suggest that pain thresholds may be altered before and during migraine headaches, but it is still debated if a central or peripheral dysfunction is responsible for the onset of pain in migraine. The present blinded longitudinal study explores alterations in thermal pain thresholds and suprathreshold heat pain scores before, during, and after headache. METHODS: We measured pain thresholds to cold and heat, and pain scores to 30 seconds of suprathreshold heat four times in 49 migraineurs and once in 31 controls...
November 15, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27918961/the-promise-of-subtraction-ictal-spect-co-registered-to-mri-for-improved-seizure-localization-in-pediatric-epilepsies-affecting-factors-and-relationship-to-the-surgical-outcome
#2
Catherine Stamoulis, Nishant Verma, Himanshu Kaulas, Jonathan J Halford, Frank H Duffy, Phillip L Pearl, S Ted Treves
OBJECTIVE: Ictal SPECT is promising for accurate non-invasive localization of the epileptogenic brain tissue in focal epilepsies. However, high quality ictal scans require meticulous attention to the seizure onset. In a relatively large cohort of pediatric patients, this study investigated the impact of the timing of radiotracer injection, MRI findings and seizure characteristics on ictal SPECT localizations, and the relationship between concordance of ictal SPECT, scalp EEG and resected area with seizure freedom following epilepsy surgery...
November 30, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27913320/the-concept-of-effective-inflow-application-to-interictal-localization-of-the-epileptogenic-focus-from-ieeg
#3
Ioannis Vlachos, Balu Krishnan, David Treiman, Konstantinos Tsakalis, Dimitris Kugiumtzis, Leon Iassemidis
GOAL: Accurate determination of the epileptogenic focus is of paramount diagnostic and therapeutic importance in epilepsy. The current gold standard for focus localization is from ictal (seizure) onset and thus requires the occurrence and recording of multiple typical seizures of a patient. Localization of the focus from seizure-free (interictal) periods remains a challenging problem, especially in the absence of interictal epileptiform activity. METHODS: By exploring the concept of effective inflow, we developed a focus localization algorithm (FLA) based on directed connectivity between brain sites...
November 29, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27912111/can-ictal-meg-obviate-the-need-for-phase-ii-monitoring-in-people-with-drug-refractory-epilepsy-a-prospective-observational-study
#4
Bhargavi Ramanujam, Kamal Bharti, Vibhin Viswanathan, Ajay Garg, Madhavi Tripathi, Chandrashekhar Bal, P Sarat Chandra, Manjari Tripathi
PURPOSE: To determine if ictal-magnetoencephalography (ictal-MEG) source localization (SL) added information towards delineating the ictal-onset zone (IOZ), whether and how it helped final decision-making in epilepsy-surgery. METHODS: Definite focal clusters on ictal-MEG were available for 32 DRE-patients, data was analyzed (single equivalent current dipole (ECD) model), SL done. Clinical history, long-term video-EEG (VEEG) monitoring, epilepsy-protocol MRI, FDG-PET, ictal-SPECT and interictal-MEG were discussed at the multispeciality Epilepsy Surgery Case-conference (ESC)...
October 31, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27903764/epilepsy-and-music-practical-notes
#5
REVIEW
M Maguire
Music processing occurs via a complex network of activity far beyond the auditory cortices. This network may become sensitised to music or may be recruited as part of a temporal lobe seizure, manifesting as either musicogenic epilepsy or ictal musical phenomena. The idea that sound waves may directly affect brain waves has led researchers to explore music as therapy for epilepsy. There is limited and low quality evidence of an antiepileptic effect with the Mozart Sonata K.448. We do not have a pathophysiological explanation for the apparent dichotomous effect of music on seizures...
November 30, 2016: Practical Neurology
https://www.readbyqxmd.com/read/27886629/transient-epileptic-amnesia-over-twenty-years-long-term-follow-up-of-a-case-series-with-three-detailed-reports
#6
Sharon A Savage, Christopher R Butler, John R Hodges, Adam Z Zeman
PURPOSE: Transient Epileptic Amnesia (TEA) is a form of adult onset temporal lobe epilepsy characterised by ictal amnesia. The amnesic seizures are often accompanied by interical memory disturbance, involving autobiographical amnesia and accelerated long-term forgetting. Short-term follow-up studies suggest a relatively stable cognitive profile once treated, but recent case reports raise concerns regarding the risk of developing Alzheimer's disease (AD). The current study reports clinical and cognitive outcome in TEA patients over a 20-year period...
November 14, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27876408/brain-stimulation-as-a-neuromodulatory-epilepsy-therapy
#7
Andreas Schulze-Bonhage
Brain stimulation is increasingly used in epilepsy patients with insufficient therapeutic response to pharmacological treatment. Whereas vagus nerve stimulation with implanted devices has been used in large and heterogeneous patient groups, new devices also enable targeted brain stimulation at the site of seizure generation (responsive neurostimulation) or at network hubs (thalamic stimulation). Both responsive neurostimulation systems targeting the epileptic focus and the latest vagus nerve stimulators are intended to stimulate during the ictal phase to disrupt clinical seizure manifestation of reduce seizure severity...
November 14, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27876179/prevalence-and-risk-factors-of-peri-ictal-autonomic-changes-in-children-with-temporal-lobe-seizures
#8
Mark Whealy, Elaine Wirrell, Lily Wong-Kisiel, Katherine Nickels, Eric T Payne
BACKGROUND: We determined the prevalence of signs and symptoms of autonomic dysfunction in seizures of temporal lobe onset in children. METHODS: We evaluated the prevalence and risk factors of peri-ictal autonomic changes in temporal lobe onset seizures in children from a single-center pediatric epilepsy monitoring unit between June 1, 2009 and October 31, 2013. Age, gender, epilepsy etiology, current antiepileptic drug therapy, ictal electroencephalographic lateralization, brain magnetic resonance imaging results, and the presence of generalized tonic-clonic seizures over the preceding year were recorded from medical record review...
October 11, 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/27873554/a-realistic-seizure-prediction-study-based-on-multiclass-svm
#9
Bruno Direito, César A Teixeira, Francisco Sales, Miguel Castelo-Branco, António Dourado
A patient-specific algorithm, for epileptic seizure prediction, based on multiclass support-vector machines (SVM) and using multi-channel high-dimensional feature sets, is presented. The feature sets, combined with multiclass classification and post-processing schemes aim at the generation of alarms and reduced influence of false positives. This study considers 216 patients from the European Epilepsy Database, and includes 185 patients with scalp EEG recordings and 31 with intracranial data. The strategy was tested over a total of 16,729...
September 23, 2016: International Journal of Neural Systems
https://www.readbyqxmd.com/read/27869560/syncope-seizure-or-both
#10
Paraskevi Koutrolou-Sotiropoulou, Abhijeet Singh, Mason Leeman-Markowski, Eric J Rashba
Ictal asystole (IA) is a rare phenomenon in patients with seizures with an incidence of 0.27-0.4% and has been proposed as a possible mechanism of sudden unexpected death in epilepsy patients (SUDEP). We present a case of a 53-year-old woman who initially presented with episodes of expressive aphasia and was treated with antiepileptic drugs (AEDs). While on therapy she experienced episodes of syncope. During her hospitalization for tapering of AEDs and 24-hour EEG monitoring, the patient developed a seizure followed by sinus bradycardia and an 18-second sinus pause, resulting in loss of consciousness and slowing of cerebral activity...
November 21, 2016: Acute Cardiac Care
https://www.readbyqxmd.com/read/27864903/long-term-monitoring-of-cardiorespiratory-patterns-in-drug-resistant-epilepsy
#11
Daniel M Goldenholz, Amanda Kuhn, Alison Austermuehle, Martin Bachler, Christopher Mayer, Siegfried Wassertheurer, Sara K Inati, William H Theodore
OBJECTIVE: Sudden unexplained death in epilepsy (SUDEP) during inpatient electroencephalography (EEG) monitoring has been a rare but potentially preventable event, with associated cardiopulmonary markers. To date, no systematic evaluation of alarm settings for a continuous pulse oximeter (SpO2 ) has been performed. In addition, evaluation of the interrelationship between the ictal and interictal states for cardiopulmonary measures has not been reported. METHODS: Patients with epilepsy were monitored using video-EEG, SpO2 , and electrocardiography (ECG)...
November 16, 2016: Epilepsia
https://www.readbyqxmd.com/read/27861778/correlation-of-fdg-pet-hypometabolism-and-seeg-epileptogenicity-mapping-in-patients-with-drug-resistant-focal-epilepsy
#12
Florence Lamarche, Anne-Sophie Job, Pierre Deman, Manik Bhattacharjee, Dominique Hoffmann, Céline Gallazzini-Crépin, Sandrine Bouvard, Lorella Minotti, Philippe Kahane, Olivier David
OBJECTIVE: Interictal [18F]fluorodeoxyglucose-positron emission tomography (FDG-PET) is used in the presurgical evaluation of patients with drug-resistant focal epilepsy. We aimed at clarifying its relationships with ictal high-frequency oscillations (iHFOs) shown to be a relevant marker of the seizure-onset zone. METHODS: We studied the correlation between FDG-PET and epileptogenicity maps in an unselected series of 37 successive patients having been explored with stereo-electroencephalography (SEEG)...
November 8, 2016: Epilepsia
https://www.readbyqxmd.com/read/27859041/increased-subcortical-oligodendroglia-like-cells-in-pharmacoresistant-focal-epilepsy-in-children-correlate-with-extensive-epileptogenic-zones
#13
Satoru Sakuma, William C Halliday, Ruka Nomura, Shiro Baba, Yosuke Sato, Kazuo Okanari, Midori Nakajima, Elysa Widjaja, Cyrus Boelman, Ayako Ochi, O Carter Snead, James T Rutka, James Drake, Steven Miller, Hiroshi Otsubo
OBJECTIVE: Cortical resections in epilepsy surgery tend to involve multiple lobes in children, compared to adults, partly due to underlying pathology. Oligodendroglia-like cells (OLCs) have been observed in surgical specimens from children with pharmacoresistant epilepsy. We hypothesize that OLCs recruit multiple-lobe epileptogenic zones in pediatric pharmacoresistant focal epilepsy. METHODS: We examined the surgical specimens from 30 children who underwent epilepsy surgery (1...
November 8, 2016: Epilepsia
https://www.readbyqxmd.com/read/27857782/heart-type-fatty-acid-binding-protein-as-a-predictor-of-cardiac-ischemia-in-intractable-seizures-in-children
#14
Hatem H El Shorbagy, Mostafa A Elsayed, Naglaa M Kamal, Ahmed A Azab, Mohamed M Bassiouny, Ibrahim A Ghoneim
BACKGROUND: Children with intractable epilepsy have chronic dysfunction of the autonomic nervous system causing myocardial ischemia. Heart-type fatty acid-binding protein (H-FABP) is a sensitive biomarker for myocardial ischemia. AIMS: We aimed to evaluate serum levels of H-FABP during seizures compared to their interictal levels and healthy controls and changes in heart rate (HR) and HR variability (HRV) in epileptic children with intractable seizures. MATERIALS AND METHODS: We included 30 epileptic seizures in 25 children with intractable epilepsy and 30 matched controls...
July 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27857622/ictal-activity-swimming-upstream-in-the-temporal-lobe
#15
Chris G Dulla
No abstract text is available yet for this article.
November 2016: Epilepsy Currents
https://www.readbyqxmd.com/read/27853892/seizure-onset-zone-localization-from-ictal-high-density-eeg-in-refractory-focal-epilepsy
#16
Willeke Staljanssens, Gregor Strobbe, Roel Van Holen, Gwénaël Birot, Markus Gschwind, Margitta Seeck, Stefaan Vandenberghe, Serge Vulliémoz, Pieter van Mierlo
Epilepsy surgery is the most efficient treatment option for patients with refractory epilepsy. Before surgery, it is of utmost importance to accurately delineate the seizure onset zone (SOZ). Non-invasive EEG is the most used neuroimaging technique to diagnose epilepsy, but it is hard to localize the SOZ from EEG due to its low spatial resolution and because epilepsy is a network disease, with several brain regions becoming active during a seizure. In this work, we propose and validate an approach based on EEG source imaging (ESI) combined with functional connectivity analysis to overcome these problems...
November 16, 2016: Brain Topography
https://www.readbyqxmd.com/read/27852771/reduced-efficacy-of-the-kcc2-cotransporter-promotes-epileptic-oscillations-in-a-subiculum-network-model
#17
Anatoly Buchin, Anton Chizhov, Gilles Huberfeld, Richard Miles, Boris S Gutkin
: Pharmacoresistant epilepsy is a chronic neurological condition in which a basal brain hyperexcitability results in paroxysmal hypersynchronous neuronal discharges. Human temporal lobe epilepsy has been associated with dysfunction or loss of the potassium-chloride cotransporter KCC2 in a subset of pyramidal cells in the subiculum, a key structure generating epileptic activities. KCC2 regulates intraneuronal chloride and extracellular potassium levels by extruding both ions. Absence of effective KCC2 may alter the dynamics of chloride and potassium levels during repeated activation of GABAergic synapses due to interneuron activity...
November 16, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27852030/-a-case-of-pol-iii-related-leukodystrophy-with-homozygous-mutation-in-polr3a
#18
Tomoaki Shima, Takeshi Fujimoto, Teiichiro Miyazaki, Fumiaki Nonaka
We describe a 27-year-old man with mental retardation, symptomatic epilepsy, myopia, and cerebellar ataxia without spontaneous puberty whose brain magnetic resonance imaging showed hypomyelination. He had child-like facial appearance, with thin facial hair. He had no underarm and pubic hairs, and his penis was small. Laboratory tests showed low levels of luteinizing hormone, follicle-stimulating hormone, and testosterone. Brain MRI showed diffuse hypomyelination, atrophy of the cerebellum and brainstem, and hypoplastic corpus callosum...
November 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/27843098/the-heart-of-epilepsy-current-views-and-future-concepts
#19
S Shmuely, M van der Lende, R J Lamberts, J W Sander, R D Thijs
Cardiovascular (CV) comorbidities are common in people with epilepsy. Several mechanisms explain why these conditions tend to co-exist including causal associations, shared risk factors and those resulting from epilepsy or its treatment. Various arrhythmias occurring during and after seizures have been described. Ictal asystole is the most common cause. The converse phenomenon, arrhythmias causing seizures, appears extremely rare and has only been reported in children following cardioinihibitory syncope. Arrhythmias in epilepsy may not only result from seizure activity but also from a shared genetic susceptibility...
October 26, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27833545/dynamic-network-connectivity-analysis-to-identify-epileptogenic-zones-based-on-stereo-electroencephalography
#20
Jun-Wei Mao, Xiao-Lai Ye, Yong-Hua Li, Pei-Ji Liang, Ji-Wen Xu, Pu-Ming Zhang
Objectives: Accurate localization of epileptogenic zones (EZs) is essential for successful surgical treatment of refractory focal epilepsy. The aim of the present study is to investigate whether a dynamic network connectivity analysis based on stereo-electroencephalography (SEEG) signals is effective in localizing EZs. Methods: SEEG data were recorded from seven patients who underwent presurgical evaluation for the treatment of refractory focal epilepsy and for whom the subsequent resective surgery gave a good outcome...
2016: Frontiers in Computational Neuroscience
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