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Reflex epilepsy

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https://www.readbyqxmd.com/read/28767715/lafora-disease-in-miniature-wirehaired-dachshunds
#1
Lindsay Swain, Gill Key, Anna Tauro, Saija Ahonen, Peixiang Wang, Cameron Ackerley, Berge A Minassian, Clare Rusbridge
Lafora disease (LD) is an autosomal recessive late onset, progressive myoclonic epilepsy with a high prevalence in the miniature Wirehaired Dachshund. The disease is due to a mutation in the Epm2b gene which results in intracellular accumulation of abnormal glycogen (Lafora bodies). Recent breed-wide testing suggests that the carrier plus affected rate may be as high as 20%. A characteristic feature of the disease is spontaneous and reflex myoclonus; however clinical signs and disease progression are not well described...
2017: PloS One
https://www.readbyqxmd.com/read/28766694/musicogenic-reflex-seizures-in-epilepsy-with-glutamic-acid-decarbocylase-antibodies
#2
M Falip, L Rodriguez-Bel, S Castañer, J Miro, S Jaraba, J Mora, J Bas, M Carreño
BACKGROUND: Musicogenic reflex seizures (MRS) are a rare form of seizures described in patients with temporal lobe epilepsy (TLE), mainly of unknown etiology. Epilepsy with antibodies against glutamic acid decarboxylase (GAD-ab) is a form of autoimmune epilepsy for which no specific semiology has been described. AIM OF THE STUDY: To retrospectively review the incidence of MRS in the general epileptic population and in the series of patients with epilepsy and GAD-ab and to describe its clinical and paraclinical characteristics...
August 2, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28688606/a-clinical-and-neurophysiological-motor-signature-of-unverricht-lundborg-disease
#3
E Hainque, A Blancher, V Mesnage, S Rivaud-Pechoux, A Bertrand, S Dupont, V Navarro, E Roze, I Gourfinkel-An, E Apartis
OBJECTIVES: Unverricht-Lundborg disease (ULD) is the most common form of progressive myoclonus epilepsy. Cerebellar dysfunction may appear over time, contributing along with myoclonus to motor disability. The purpose of the present work was to clarify the motor and neurophysiological characteristics of ULD patients. METHODS: Nine patients with genetically proven ULD were evaluated clinically (medical history collected from patient charts, the Scale for the Assessment and Rating of Ataxia and Unified Myoclonus Rating Scale)...
July 5, 2017: Revue Neurologique
https://www.readbyqxmd.com/read/28680322/a-rare-reflex-epilepsy-bathing-related-epilepsy
#4
Yaşar Altun, Mustafa Çelik, Burcu EKMEKÇi, Ali Zeynal Abidin Tak, Sadullah Sağlam, İlhan Çağ
No abstract text is available yet for this article.
June 2017: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28667576/can-syncope-cause-convulsive-seizures-in-adults
#5
Dearbhla M Kelly, Daniel J Costello
PURPOSE: Convulsive epileptic seizures triggered by transient cerebral hypoperfusion 'reflex anoxic seizures' are well-described in children but are not commonly recognized in adults. METHODS: We report a case series of 12 adults who presented acutely after generalized tonic-clonic seizures with a clear syncopal phase before the convulsion. We describe the aetiology, semiology and natural history of these events. RESULTS: Four patients (33...
August 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28625944/intractable-ictal-vomiting-a-new-form-of-reflex-epilepsy
#6
Sachin Sureshbabu, Dinesh Nayak, Vikash Aggarwal, Sudhir Peter, Laxmi Khanna, Gaurav Mittal
In this description of the clinical course of a young female with persistent and protracted vomiting along with occasional loss of consciousness and subtle motor manifestations, the differential diagnosis is debated. The epileptic origin of her symptoms was substantiated by the presence of interictal epileptiform discharges and dramatic response to valproate monotherapy. Possible lobar localizations are discussed with the support of existing literature on this rare ictal manifestation [Published with video sequence on www...
June 19, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28544889/juvenile-myoclonic-epilepsy-as-a-spectrum-disorder-a-focused-review
#7
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...
July 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
#8
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...
June 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28431366/efficacy-and-safety-of-a-video-eeg-protocol-for-genetic-generalized-epilepsies
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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