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https://www.readbyqxmd.com/read/28544889/juvenile-myoclonic-epilepsy-as-a-spectrum-disorder-a-focused-review
#1
REVIEW
Betül Baykan, Peter Wolf
In consequence of newer research juvenile myoclonic epilepsy (JME) is no longer seen as a homogeneous disease. The causes of the existing variance are only partially known yet. We discuss to what extent the phenotypical spectrum of this polygenetically determined disorder expresses genetically defined endophenotypes, or is due to mere quantitative differences in the expression of the core phenotype. Of the three common seizure types of JME, myoclonic, generalized tonic-clonic and absences, absences also occur independently and are strong candidates for an endophenotype...
May 18, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28506440/the-wistar-audiogenic-rat-war-strain-and-its-contributions-to-epileptology-and-related-comorbidities-history-and-perspectives
#2
Norberto Garcia-Cairasco, Eduardo H L Umeoka, José A Cortes de Oliveira
In the context of modeling epilepsy and neuropsychiatric comorbidities, we review the Wistar Audiogenic Rat (WAR), first introduced to the neuroscience international community more than 25years ago. The WAR strain is a genetically selected reflex model susceptible to audiogenic seizures (AS), acutely mimicking brainstem-dependent tonic-clonic seizures and chronically (by audiogenic kindling), temporal lobe epilepsy (TLE). Seminal neuroethological, electrophysiological, cellular, and molecular protocols support the WAR strain as a suitable and reliable animal model to study the complexity and emergent functions typical of epileptogenic networks...
May 11, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28431366/efficacy-and-safety-of-a-video-eeg-protocol-for-genetic-generalized-epilepsies
#3
Luciana Rodrigues De Marchi, Jeana Torres Corso, Ana Carolina Zetehaku, Carina Gonçalves Pedroso Uchida, Mirian Salvadori Bittar Guaranha, Elza Márcia Targas Yacubian
INTRODUCTION: Video-EEG has been used to characterize genetic generalized epilepsies (GGE). For best performance, sleep recording, photic stimulation, hyperventilation, and neuropsychological protocols are added to the monitoring. However, risks and benefits of these video-EEG protocols are not well established. The aim of this study was to analyze the efficacy and safety of a video-EEG neuropsychological protocol (VNPP) tailored for GGE and compare its value with that of routine EEG (R-EEG)...
May 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28412607/effect-of-early-postnatal-exposure-to-valproate-on-neurobehavioral-development-and-regional-bdnf-expression-in-two-strains-of-mice
#4
Kevin G Bath, Tiare Pimentel
Valproate has been used for over 30years as a first-line treatment for epilepsy. In recent years, prenatal exposure to valproate has been associated with teratogenic effects, limiting its use in women that are pregnant or of childbearing age. However, despite its potential detrimental effects on development, valproate continues to be prescribed at high rates in pediatric populations in some countries. Animal models allow us to test hypotheses regarding the potential effects of postnatal valproate exposure on neurobehavioral development, as well as identify potential mechanisms mediating observed effects...
May 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28403704/nursing-management-of-reflex-anoxic-seizures-in-children
#5
Neal Patel, Rowan Kerr-Liddell, Louise Challis, Siba Prosad Paul
Children who present with transient loss of consciousness (T-LOC) are often first seen in emergency departments (EDs). Reflex anoxic seizure (RAS), vasovagal syncope and prolonged respiratory apnoea are benign, syncopal events that can be generally managed by explanation and reassurance. RAS is a short, paroxysmal, self-reverting episode of asystole that is triggered by pain, fear or anxiety and is caused by increased vagal response. It is an important differential diagnosis in pre-school age children who present with T-LOC, but is often underdiagnosed and can sometimes be misdiagnosed as epilepsy...
April 13, 2017: Emergency Nurse: the Journal of the RCN Accident and Emergency Nursing Association
https://www.readbyqxmd.com/read/28323007/inhibition-of-microglial-activation-with-minocycline-at-the-intrathecal-level-attenuates-sympathoexcitatory-and-proarrhythmogenic-changes-in-rats-with-chronic-temporal-lobe-epilepsy
#6
Amol M Bhandare, Komal Kapoor, Kim L Powell, Emma Braine, Pablo Casillas-Espinosa, Terence J O'Brien, Melissa M J Farnham, Paul M Pilowsky
The incidence of sudden unexpected death in epilepsy (SUDEP) is highest in people with chronic and drug-resistant epilepsy. Chronic spontaneous recurrent seizures cause cardiorespiratory autonomic dysfunctions. Pituitary adenylate cyclase-activating polypeptide (PACAP) is neuroprotective, whereas microglia produce both pro- and anti-inflammatory effects in the CNS. During acute seizures in rats, PACAP and microglia produce sympathoprotective effect at the intermediolateral cell column (IML), whereas their action on the presympathetic rostral ventrolateral medulla (RVLM) neurons mediates proarrhythmogenic changes...
March 18, 2017: Neuroscience
https://www.readbyqxmd.com/read/28241263/bridging-knowledge-gaps-to-understand-how-zika-virus-exposure-and-infection-affect-child-development
#7
Bill G Kapogiannis, Nahida Chakhtoura, Rohan Hazra, Catherine Y Spong
Importance: The Zika virus (ZIKV) epidemic has profoundly affected the lives of children and families across the Americas. As the number of children born with ZIKV-related complications continues to grow, the long-term developmental trajectory for these children and the effect on their families remains largely unknown. In September 2016, the Eunice Kennedy Shriver National Institute of Child Health and Human Development and partner National Institutes of Health institutes convened a workshop to develop a research agenda to improve the evaluation, monitoring, and management of neonates, infants, or children affected by ZIKV and its complications...
May 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28188855/auditory-processing-assessment-suggests-that-wistar-audiogenic-rat-neural-networks-are-prone-to-entrainment
#8
Hyorrana Priscila Pereira Pinto, Vinícius Rezende Carvalho, Daniel de Castro Medeiros, Ana Flávia Santos Almeida, Eduardo Mazoni Andrade Marçal Mendes, Márcio Flávio Dutra Moraes
Epilepsy is a neurological disease related to the occurrence of pathological oscillatory activity, but the basic physiological mechanisms of seizure remain to be understood. Our working hypothesis is that specific sensory processing circuits may present abnormally enhanced predisposition for coordinated firing in the dysfunctional brain. Such facilitated entrainment could share a similar mechanistic process as those expediting the propagation of epileptiform activity throughout the brain. To test this hypothesis, we employed the Wistar audiogenic rat (WAR) reflex animal model, which is characterized by having seizures triggered reliably by sound...
April 7, 2017: Neuroscience
https://www.readbyqxmd.com/read/28153424/seizure-associated-central-apnea-in-a-rat-model-evidence-for-resetting-the-respiratory-rhythm-and-activation-of-the-diving-reflex
#9
S M Villiere, K Nakase, R Kollmar, J Silverman, K Sundaram, M Stewart
Respiratory derangements, including irregular, tachypnic breathing and central or obstructive apnea can be consequences of seizure activity in epilepsy patients and animal models. Periods of seizure-associated central apnea, defined as periods >1s with rapid onset and offset of no airflow during plethysmography, suggest that seizures spread to brainstem respiratory regions to disrupt breathing. We sought to characterize seizure-associated central apneic episodes as an indicator of seizure impact on the respiratory rhythm in rats anesthetized with urethane and given parenteral kainic acid to induce recurring seizures...
May 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28126647/movement-activated-cortical-myoclonus-in-dravet-syndrome
#10
Laura Canafoglia, Francesca Ragona, Ferruccio Panzica, Elena Piazza, Elena Freri, Simona Binelli, Vidmer Scaioli, Giuliano Avanzini, Tiziana Granata, Silvana Franceschetti
PURPOSE: we characterized multifocal myoclonus in Dravet syndrome (DS) that was never systematically typified before. METHODS: we studied EEG-EMG recordings of 19 consecutive patients, aged 2-29 years, with DS associated with SCN1A gene mutations to detect and evaluate myoclonus based on the spectrum of EMG activity on antagonist muscle pairs and cortico-muscular coherence (CMC). RESULTS: multifocal action myoclonus was detected in all patients corresponding to brief EMG bursts, which occurred synchronously on antagonist muscles at a frequency peaking in beta band...
February 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28114705/recurrence-of-epileptic-spasms-as-reflex-seizures-induced-by-eating-a-case-report-and-literature-review
#11
REVIEW
Yoshiyuki Kobayashi, Nobutsune Ishikawa, Hiroo Tani, Yuji Fujii, Masao Kobayashi
Background Eating epilepsy (EE) is a rare form of reflex epilepsy in which seizures are induced by eating. It is known that most patients with eating seizures, in fact, suffer from symptomatic temporal lobe epilepsy (TLE), whereas only a few patients with epileptic spasms induced by eating (E-ES) have been reported. Patient Description The patient was an 8-year-old girl whose magnetic resonance imaging (MRI) of the head detected dysgenesis of the corpus callosum, cerebellar hypogenesis, marked cerebral asymmetry, broad polymicrogyria, periventricular heterotopia, and closed lip-type schizencephaly...
April 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28091857/lack-of-heart-rate-variability-during-sleep-related-apnea-in-patients-with-temporal-lobe-epilepsy-tle-an-indirect-marker-of-sudep
#12
C S Nayak, S Sinha, M Nagappa, K Thennarasu, A B Taly
PURPOSE: Apneas occurring during sleep may precipitate autonomic instability in epilepsy patients making them susceptible to sudden death (SUDEP). Literature on heart rate variability (HRV) during apnea among patients with temporal lobe epilepsy (TLE) is sparse. The aim of this study was to characterize the HRV during the peri-apneic period in patients with TLE and compare with HRV of matched healthy individuals during the overnight polysomnographic (PSG) recording. Further, the role of carbamazepine (CBZ) in modulating peri-apneic HRV in the above cohort was also assessed...
January 14, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28088254/role-of-dietary-and-lifestyle-modifications-in-reflex-epilepsy-based-on-traditional-persian-medicine
#13
Majid Nimrouzi, Mehdi Pasalar
No abstract text is available yet for this article.
January 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28074997/-classification-of-idiopathic-generalised-epilepsies-in-patients-over-16-years-of-age
#14
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/28029552/epilepsia-partialis-continua-a-review
#15
REVIEW
Rūta Mameniškienė, Peter Wolf
Epilepsia partialis contina (EPC) in a narrow definition is a variant of simple focal motor status epilepticus in which frequent repetitive muscle jerks, usually arrhythmic, continue over prolonged periods of time. In a broader definition (used in this review) it also includes non-motor manifestations otherwise known as aura continua. EPC may occur as a single episode, repetitive episodes, it may be chronic progressive or non-progressive. It appears as an unusual manifestation of epilepsy in which more typical paroxysmal events are partly or entirely replaced by the sustained repetition of seizure fragments in rapid succession...
January 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28001116/features-of-stimulus-specific-seizures-in-dogs-with-reflex-epilepsy-43-cases-2000-2014
#16
Linda Shell, Rachel Scariano, Mark Rishniw
OBJECTIVE To describe the occurrence and management of reflex epilepsy (ie, seizure activity triggered by exposure to specific locations or situations) in dogs. DESIGN Retrospective case series. ANIMALS 43 client-owned dogs. PROCEDURES Discussions by veterinarians participating in the Veterinary Information Network online community for the years 2000 through 2014 were reviewed to identify dogs with a diagnosis of reflex epilepsy and seizure activity in response to stimuli. History, signalment (including age at onset), the specific stimulus or stimuli that provoked seizures, treatments, and any concurrent neurologic diagnoses were recorded...
January 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/27889818/somatosensory-reflex-seizures-in-a-child-with-epilepsy-related-to-novel-scn1a-mutation
#17
Pinar Arican, Nihal Olgac Dundar, Dilek Cavusoglu, Taha Resid Ozdemır, Pinar Gencpinar
INTRODUCTION: Mutations in SCN1A have been reported in patients with different types of epilepsy, including generalized epilepsy with febrile seizures plus, severe myoclonic epilepsy in infancy, malignant migrating partial seizures in infancy, and other infantile epileptic encephalopathies. CASE REPORT: We report a case of a 10-month-old girl presented with reflex epileptic seizures provoked by somatosensory stimuli with a novel de novo mutation of SCN1A gene. She was observed to have seizures with eye deviation, unresponsiveness provoked by somatosensory stimuli of the face...
April 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27876238/thermography-examination-of-abdominal-area-skin-temperatures-in-individuals-with-and-without-focal-onset-epilepsy
#18
Hollis H King, Charles Thomas Cayce, Jeph Herrin
Early osteopathic theory and practice, and the work of the medical intuitive Edgar Cayce suggested that the abdominal areas of individuals with epilepsy would manifest "cold spots." The etiology for this phenomenon was thought to be abdominal adhesions caused by inflammation and viscero-somatic reflexes caused by adhesions or injury to visceral or musculoskeletal system structures. Indeed, until that advent of electroencephalography in the 1930s, medical practice regarding epilepsy focused on abdominal neural and visceral structures...
January 2017: Explore: the Journal of Science and Healing
https://www.readbyqxmd.com/read/27848906/-attempted-suicide-with-barbiturates-purchased-online
#19
S F Chavoushi, L Mesman, P G Noordzij, M A Sikma, E M van Maarseveen
BACKGROUND: Barbiturate intoxication is potentially lethal. With the availability of the newer anticonvulsants the use of barbiturates in treating epilepsy has decreased significantly, with a concurrent decrease in the incidence of overdose with these medications. There have, however, been recent alarm signals from governmental sources concerning the increase in the Internet purchase of illegal medications, including barbiturates, for use in attempted suicide. CASE DESCRIPTION: Here we describe two patient cases involving barbiturate intoxication with amobarbital and thiopental, respectively...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27848255/prognostic-predictors-for-ambulation-in-children-with-cerebral-palsy-a-systematic-review-and-meta-analysis-of-observational-studies
#20
Orawan Keeratisiroj, Nuanlaor Thawinchai, Wantana Siritaratiwat, Montana Buntragulpoontawee, Chayanin Pratoomsoot
PURPOSE: The purpose of this study is to investigate the prognostic predictors for ambulation in children with cerebral palsy using meta-analysis of observational studies. METHOD: Electronic searches were conducted in PubMed, SCOPUS, CINAHL, ProQuest, Ovid, Wiley InterScience, and ScienceDirect databases from their start dates to December 2015. RESULTS: Of the 1123 identified articles, 12 met the inclusion criteria for qualitative synthesis, eight of which were deemed appropriate for meta-analysis...
November 16, 2016: Disability and Rehabilitation
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