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https://www.readbyqxmd.com/read/28547735/the-burden-of-headache-disorders-in-ethiopia-national-estimates-from-a-population-based-door-to-door-survey
#1
Mehila Zebenigus, Redda Tekle-Haimanot, Dawit K Worku, Hallie Thomas, Timothy J Steiner
BACKGROUND: Headache disorders are the third-highest cause of disability worldwide, with migraine and medication-overuse headache (MOH) the major contributors. In Ethiopia we have shown these disorders to be highly prevalent: migraine 17.7%, TTH 20.6%, probable MOH (pMOH) 0.7%, any headache yesterday (HY) 6.4%. To inform local health policy, we now estimate disability and other burdens attributable to headache in this country. METHODS: In a cross-sectional survey using cluster-randomized sampling, we visited households unannounced in four diverse regions (urban and rural) of Ethiopia...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28527977/the-association-of-arachnoid-cysts-and-focal-epilepsy-hospital-based-case-control-study
#2
Ivan Nikolić, Aleksandar Ristić, Nikola Vojvodić, Vladimir Baščarević, Andrej Ilanković, Ivana Berisavac, Tijana Đukić, Dragoslav Sokić
OBJECTIVE: Arachnoid cysts (ACs) are common findings in brain MRI. Our aim was to examine frequency and distribution of ACs in patients with focal epilepsy, compared to healthy control subjects, and to investigate the association of AC and electro-clinical features of focal epilepsy. PATIENTS AND METHODS: We performed a retrospective case-control study, using data from 180 patients that underwent video-EEG monitoring between 2009 and 2012, and of 114 healthy controlled subjects...
May 12, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28524796/improvement-of-visual-field-defects-after-focal-resection-for-occipital-lobe-epilepsy-case-report
#3
Takahiro Yamamoto, Tadashi Hamasaki, Hideo Nakamura, Kazumichi Yamada
Improvement of visual field defects after surgical treatment for occipital lobe epilepsy is rare. Here, the authors report on a 24-year-old man with a 15-year history of refractory epilepsy that developed after he had undergone an occipital craniotomy to remove a cerebellar astrocytoma at the age of 4. His seizures started with an elementary visual aura, followed by secondary generalized tonic-clonic convulsion. Perimetry revealed left-sided incomplete hemianopia, and MRI showed an old contusion in the right occipital lobe...
May 19, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28523567/peripheral-viral-challenge-triggers-hippocampal-production-of-inflammatory-proteins
#4
Tiffany Petrisko, Gregory Konat
Peripheral viral infections increase seizure propensity and intensity in susceptible individuals. We have modeled this comorbidity by demonstrating that intraperitoneal (ip) injection of the conventional viral mimetic, polyinosinic-polycytidylic acid (PIC), renders the brain hypersusceptible to seizures induced by kainic acid (KA). At the molecular level, the hippocampus, which is the ictal site of KA-induced seizures, exhibits upregulated expression of messages encoding several inflammatory genes. Here, we profiled temporal expression of these genes at the protein level...
May 18, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28522734/voluntary-control-of-epileptiform-spike-wave-discharges-in-awake-rats
#5
Jeremy A Taylor, Krista M Rodgers, Florencia M Bercum, Carmen J Booth, F Edward Dudek, Daniel S Barth
Genetically inherited absence epilepsy in humans is typically characterized by brief (seconds) spontaneous seizures, which involve spike-wave discharges (SWDs) in the EEG and interruption of consciousness and ongoing behavior. Genetic (inbred) models of this disorder in rats have been used to examine mechanisms, comorbidities and anti-absence drugs. SWDs have also been proposed as models of complex partial seizures (CPSs) following traumatic brain injury (post-traumatic epilepsy; PTE). However, the ictal characteristics of these rat models, including SWDs and associated immobility, are also prevalent in healthy outbred laboratory rats...
May 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28520631/operculo-insular-epilepsy-scalp-and-intracranial-electroencephalographic-findings
#6
Ariel Levy, Thi Phuoc Yen Tran, Olivier Boucher, Alain Bouthillier, Dang Khoa Nguyen
PURPOSE: Operculo-insular seizures are heterogeneous and may resemble seizures originating from the temporal, frontal, or parietal lobe. Although surface and invasive EEG recordings are often necessary to detect operculo-insular seizures, electrophysiological features of operculo-insular epilepsies remain poorly characterized. This study describes the EEG findings of patients with operculo-insular epilepsy. METHODS: We reviewed electrophysiological data of all patients (n = 9) with operculo-insular seizures revealed by intracranial EEG and for whom operculo-insular epilepsy was confirmed by good seizure outcome after resective or radiosurgery at our center between 2005 and 2013...
May 16, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28520630/diagnostic-yield-of-routine-electroencephalography-with-concurrent-video-recording-in-detecting-interictal-epileptiform-discharges-in-relation-to-reasons-for-request-a-prospective-study-of-1-080-video-electroencephalograms
#7
Laia Grau-López, Marta Jiménez, Jordi Ciurans, Sonia Barambio, Alejandra Fumanal, Juan L Becerra
PURPOSE: The aim of this study was to prospectively analyze the sensitivity and specificity of routine electroencephalography with concurrent video recording (vEEG) in relation to the reasons for requesting the test and to investigate when routine vEEG should be requested. METHODS: We prospectively analyzed 1,080 consecutive vEEGs performed between April 2015 and April 2016. The requests for vEEG were classified as requests with a low suspicion of epilepsy (syncope, confusion or delirium, suspicion of psychogenic nonepileptic seizures, and paroxysmal focal neurological deficit) or requests with a high suspicion of epilepsy (first clinical seizure, suspected status epilepticus, follow-up study of a patient with epilepsy, and acute symptomatic seizures)...
May 16, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28501415/reduced-electrode-arrays-for-the-automated-detection-of-rhythmic-and-periodic-patterns-in-the-intensive-care-unit-frequently-tried-frequently-failed
#8
J Herta, J Koren, F Fürbass, M Hartmann, A Gruber, C Baumgartner
OBJECTIVE: To investigate the effect of systematic electrode reduction from a common 10-20 EEG system on pattern detection sensitivity (SEN). METHODS: Two reviewers rated 17130 one-minute segments of 83 prospectively recorded cEEGs according to the ACNS standardized critical care EEG terminology (CCET), including burst suppression patterns (BS) and unequivocal electrographic seizures. Consensus annotations between reviewers were used as a gold standard to determine pattern detection SEN and specificity (SPE) of a computational algorithm (baseline, 19 electrodes)...
April 26, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28491280/ar2-a-novel-automatic-artifact-reduction-software-method-for-ictal-eeg-interpretation-validation-and-comparison-of-performance-with-commercially-available-software
#9
Shennan Aibel Weiss, Ali A Asadi-Pooya, Sitaram Vangala, Stephanie Moy, Dale H Wyeth, Iren Orosz, Michael Gibbs, Lara Schrader, Jason Lerner, Christopher K Cheng, Edward Chang, Rajsekar Rajaraman, Inna Keselman, Perdro Churchman, Christine Bower-Baca, Adam L Numis, Michael G Ho, Lekha Rao, Annapoorna Bhat, Joanna Suski, Marjan Asadollahi, Timothy Ambrose, Andres Fernandez, Maromi Nei, Christopher Skidmore, Scott Mintzer, Dawn S Eliashiv, Gary W Mathern, Marc R Nuwer, Michael Sperling, Jerome Engel, John M Stern
Objective: To develop a novel software method (AR2) for reducing muscle contamination of ictal scalp electroencephalogram (EEG), and validate this method on the basis of its performance in comparison to a commercially available software method (AR1) to accurately depict seizure-onset location. Methods: A blinded investigation used 23 EEG recordings of seizures from 8 patients. Each recording was uninterpretable with digital filtering because of muscle artifact and processed using AR1 and AR2 and reviewed by 26 EEG specialists...
2017: F1000Research
https://www.readbyqxmd.com/read/28478712/alterations-in-post-movement-beta-event-related-synchronization-throughout-the-migraine-cycle-a-controlled-longitudinal-study
#10
Martin Syvertsen Mykland, Marte Helene Bjørk, Marit Stjern, Trond Sand
Background The migraine brain is believed to have altered cortical excitability compared to controls and between migraine cycle phases. Our aim was to evaluate post-activation excitability through post-movement beta event related synchronization (PMBS) in sensorimotor cortices with and without sensory discrimination. Subjects and methods We recorded EEG of 41 migraine patients and 31 healthy controls on three different days with classification of days in relation to migraine phases. During each recording, subjects performed one motor and one sensorimotor task with the right wrist...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28473802/the-subiculum-a-potential-site-of-ictogenesis-in-a-neonatal-seizure-model
#11
Xin-Xin Wang, Yong-Hua Li, Hai-Qing Gong, Pei-Ji Liang, Pu-Ming Zhang, Qin-Chi Lu
Studies have reported that the subiculum is one origin of interictal-like discharges in adult patients with temporal lobe epilepsy; however, whether the subiculum represents a site of ictogenesis for neonatal seizures remains unclear. In this study, multi-electrode recording techniques were used to record epileptiform discharges induced by low-Mg(2+) or high-K(+) artificial cerebrospinal fluid in neonatal mouse hippocampal slices, and the spatiotemporal dynamics of the epileptiform discharges were analyzed...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28472428/granger-causality-analysis-of-interictal-ieeg-predicts-seizure-focus-and-ultimate-resection
#12
Eun-Hyoung Park, Joseph R Madsen
BACKGROUND: A critical conceptual step in epilepsy surgery is to locate the causal region of seizures. In practice, the causal region may be inferred from the set of electrodes showing early ictal activity. There would be advantages in deriving information about causal regions from interictal data as well. We applied Granger's statistical approach to baseline interictal data to calculate causal interactions. We hypothesized that maps of the Granger causality network (or GC maps) from interictal data might inform about the seizure network, and set out to see if "causality" in the Granger sense correlated with surgical targets...
May 2, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28467337/serial-magnetic-resonance-imaging-findings-in-subarachnoid-hemorrhage-due-to-an-initially-angiographically-occult-type-ii-spinal-aneurysm-case-report
#13
Michael Kogan, Simon Morr, Adnan H Siddiqui
BACKGROUND: Spinal aneurysms are rare causes of spontaneous subarachnoid hemorrhage. METHODS: We present an unusual, initially occult, case of an upper thoracic intradural extramedullary isolated aneurysm arising from the T2 intercostal-radicular circulation that was initially angiographically occult but was discovered due to unique, albeit nonspecific, magnetic resonance imaging findings of spinal cord T2 hyperintensity and contrast enhancement that were noted to progress with a clinical picture of ictal rehemorrhage...
April 28, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28464799/erratum-to-ipsiversive-ictal-eye-deviation-in-inferioposterior-temporal-lobe-epilepsy-two-seeg-cases-report
#14
Wei Zhang, Xingzhou Liu, Lijun Zuo, Qiang Guo, Qi Chen, Yongjun Wang
No abstract text is available yet for this article.
May 2, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28464295/obstructive-apnea-due-to-laryngospasm-links-ictal-to-postictal-events-in-sudep-cases-and-offers-practical-biomarkers-for-review-of-past-cases-and-prevention-of-new-ones
#15
Mark Stewart, Richard Kollmar, Ko Nakase, Joshua Silverman, Krishnamurthi Sundaram, Rena Orman, Jason Lazar
Seizure spread into autonomic and respiratory brainstem regions is thought to play an important role in sudden unexpected death in epilepsy (SUDEP). As the clinical dataset of cases of definite SUDEP available for study grows, evidence points to a sequence of events that includes postictal apnea, bradycardia, and asystole as critical events that can lead to death. One possible link between the precipitating seizure and the critical postictal sequence is seizure-driven laryngospasm sufficient to completely obstruct the airway for an extended period, but ictal laryngospasm is difficult to fully assess...
May 2, 2017: Epilepsia
https://www.readbyqxmd.com/read/28463933/brief-potentially-ictal-rhythmic-discharges-b-i-rds-in-noncritically-ill-adults
#16
Ji Yeoun Yoo, Lara V Marcuse, Madeline C Fields, Jillian L Rosengard, Maria Vittoria Traversa, Nicolas Gaspard, Lawrence J Hirsch
INTRODUCTION: Brief potentially ictal rhythmic discharges (B(I)RDs) have been described in neonates and critically ill adults, and their association with seizures has been demonstrated. Their significance in noncritically ill adults remains unclear. We aimed to investigate their prevalence, electrographic characteristics, and clinical significance. METHODS: We identified adult patients with B(I)RDs who received long-term EEG recordings either in the epilepsy monitoring unit or in the ambulatory setting...
May 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28455784/clinical-features-of-patients-with-diffuse-alveolar-hemorrhage-due-to-negative-pressure-pulmonary-edema
#17
Damien Contou, Guillaume Voiriot, Michel Djibré, Vincent Labbé, Muriel Fartoukh, Antoine Parrot
PURPOSE: Diffuse alveolar hemorrhage (DAH) with negative-pressure pulmonary edema (NPPE) is an uncommon yet life-threatening condition. We aimed at describing the circumstances, clinical, radiological, and bronchoscopic features, as well as the outcome of patients with NPPE-related DAH. METHODS: We performed a retrospective, observational cohort study, using data prospectively collected over 35 years in an intensive care unit (ICU). RESULTS: Of the 149 patients admitted for DAH, we identified 18 NPPE episodes in 15 patients, one admitted four times for recurrent NPPE-related DAH...
April 28, 2017: Lung
https://www.readbyqxmd.com/read/28434238/the-characteristics-and-long-term-course-of-epilepsy-in-lipoid-proteinosis-a-spectrum-from-mild-to-severe-seizures-in-relation-to-ecm1-mutations
#18
Emel Oguz Akarsu, Firdevs Dinçsoy Bir, Can Baykal, Volkan Taşdemir, Bülent Kara, Nerses Bebek, Candan Gürses, Oya Uyguner, Betül Baykan
Lipoid proteinosis (LP) is a rare autosomal recessive disease characterized by deposition of hyaline material in skin and mucosae. Epilepsy, as an extracutaneous manifestation associated with typical mesial temporal calcifications, has already been identified, but its characteristics and long-term prognosis have not been thoroughly investigated. We included 7 consecutive patients with LP with typical intracranial calcifications out of 16 patients with ECM1 mutations and investigated the semiologic features, ictal and interictal EEG findings, and long-term prognosis of epilepsy in this genodermatosis...
April 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/28433856/detection-of-recurrent-activation-patterns-across-focal-seizures-application-to-seizure-onset-zone-identification
#19
Manel Vila-Vidal, Alessandro Principe, Miguel Ley, Gustavo Deco, Adrià Tauste Campo, Rodrigo Rocamora
OBJECTIVE: We introduce a method that quantifies the consistent involvement of intracranially monitored regions in recurrent focal seizures. METHODS: We evaluated the consistency of two ictal spectral activation patterns (mean power change and power change onset time) in intracranial recordings across focal seizures from seven patients with clinically marked seizure onset zone (SOZ). We examined SOZ discrimination using both patterns in different frequency bands and periods of interest...
June 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28431367/clinical-characterization-of-the-pre-ictal-state-in-the-pediatric-population-a-caretaker-s-perspective
#20
Puja Patel, Victor Ferastraoaru, Dov Gold, Andrew Lipnick, Rana Jehle, Sheryl R Haut
The unpredictability of seizures causes distress to patients with epilepsy and their caretakers. To date, no studies have explored seizure prediction specifically in the pediatric population. If the period of time preceding a seizure can be reliably identified, either by child or caretaker, there may be a role for pre-emptive interventions. The aim of this study was to investigate caretaker seizure prediction. A questionnaire was distributed to caretakers of patients with epilepsy. The patients were 0-21years old and experienced ≥1 seizure within the past year...
May 2017: Epilepsy & Behavior: E&B
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