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Autonomic seizure

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https://www.readbyqxmd.com/read/28166327/neurological-autoantibody-prevalence-in-epilepsy-of-unknown-etiology
#1
Divyanshu Dubey, Abdulradha Alqallaf, Ryan Hays, Matthew Freeman, Kevin Chen, Kan Ding, Mark Agostini, Steven Vernino
Importance: Autoimmune epilepsy is an underrecognized condition, and its true incidence is unknown. Identifying patients with an underlying autoimmune origin is critical because these patients' condition may remain refractory to conventional antiseizure medications but may respond to immunotherapy. Objective: To determine the prevalence of neurological autoantibodies (Abs) among adult patients with epilepsy of unknown etiology. Design, Setting, and Participants: Consecutive patients presenting to neurology services with new-onset epilepsy or established epilepsy of unknown etiology were identified...
February 6, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28152451/can-natural-ways-to-stimulate-the-vagus-nerve-improve-seizure-control
#2
REVIEW
Alan W C Yuen, Josemir W Sander
The vagus nerve (VN) is the longest cranial nerve, innervating the neck, thorax and abdomen, with afferent fibers transmitting a range of interoceptive stimuli and efferent fibres to somatic structures and autonomic preganglions. Over the last few decades, electrical stimulation of the VN using implanted devices (VNS) has been developed leading to its approval for the treatment of epilepsy and depression. More recently, non-invasive devices to stimulation the VN have been developed. The VN has many functions and the activity that is most amenable to assessment is its effect in controlling the cardiac rhythm...
January 30, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28139515/clinical-analysis-of-partial-epilepsy-with-auras
#3
Yang Liu, Xiao-Ming Guo, Xun Wu, Ping Li, Wei-Wei Wang
BACKGROUND: An aura is usually considered to be the initial clinical sign of a seizure. The types of abnormal neuron activities (i.e., localized and generalized firing) play an important role in the diagnosis of epilepsy. The goal of this study was to investigate the types of auras and its correlation with the localization and treatment of epilepsy. METHODS: The 426 epileptic patients with auras from a single center were reviewed with reference to International League Against Epilepsy (ILAE, 1981) classification; the clinical manifestations and incidence of auras were analyzed in this retrospective study, as well as the results of electroencephalogram (EEG), brain magnetic resonance imaging (MRI) and the treatment methods...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28131199/first-reported-cases-of-anti-nmda-receptor-encephalitis-in-vietnamese-adolescents-and-adults
#4
Mai Nguyen Thi Hoang, Phu Nguyen Hoan, Tan Le Van, Angela McBride, Nghia Ho Dang Trung, Thanh Tran Tan, Hong Nguyen Thi Thu, Dorothee Heemskerk, Jeremy Day, Angela Vincent, Chau Nguyen Van Vinh, Guy Thwaites
INTRODUCTION: Anti-NMDA receptor encephalitis is increasingly recognised as an important differential diagnosis in patients with encephalitis of unknown aetiology. We report the first case series of patients diagnosed in Vietnam. METHODS: Samples of CSF from patients with presumed encephalitis but negative microbiological investigations, who exhibited dyskinesia, autonomic instability or psychosis were tested for antibodies against the NR1 subunit of the glutamate (type-NMDA) receptor using an indirect immunofluorescence assay...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28110698/heart-rate-variability-regression-and-risk-of-sudden-unexpected-death-in-epilepsy
#5
Alessio Galli, Federico Lombardi
The exact mechanisms of sudden unexpected death in epilepsy remain elusive, despite there is consensus that SUDEP is associated with severe derangements in the autonomic control to vital functions as breathing and heart rate regulation. Heart rate variability (HRV) has been advocated as biomarker of autonomic control to the heart. Cardiac dysautonomia has been found in diseases where other branches of the autonomous nervous system are damaged, as Parkinson disease and multiple system atrophy. In this perspective, an impaired HRV not only is a risk factor for sudden cardiac death mediated by arrhythmias, but also a potential biomarker for monitoring a progressive decline of the autonomous nervous system...
February 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28101764/diazepam-in-the-treatment-of-moderate-to-severe-alcohol-withdrawal
#6
Steven J Weintraub
Benzodiazepines ameliorate or prevent the symptoms and complications of moderate to severe alcohol withdrawal, which can include autonomic hyperactivity, agitation, combativeness, hallucinations, seizures, delirium, and death. The benzodiazepines most commonly used for this purpose are lorazepam, chlordiazepoxide, oxazepam, and diazepam. It is widely asserted that no member of this group is superior to the others for treatment of alcohol withdrawal. However, of these, diazepam has the shortest time to peak effect, which facilitates both rapid control of symptoms and accurate titration to avoid over-sedation...
January 18, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28073789/dynamics-of-convulsive-seizure-termination-and-postictal-generalized-eeg-suppression
#7
Prisca R Bauer, Roland D Thijs, Robert J Lamberts, Demetrios N Velis, Gerhard H Visser, Else A Tolner, Josemir W Sander, Fernando H Lopes da Silva, Stiliyan N Kalitzin
It is not fully understood how seizures terminate and why some seizures are followed by a period of complete brain activity suppression, postictal generalized EEG suppression. This is clinically relevant as there is a potential association between postictal generalized EEG suppression, cardiorespiratory arrest and sudden death following a seizure. We combined human encephalographic seizure data with data of a computational model of seizures to elucidate the neuronal network dynamics underlying seizure termination and the postictal generalized EEG suppression state...
January 10, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28070480/central-congenital-hypoventilation-syndrome-associated-with-hypoglycemia-and-seizure
#8
Emily Hopkins, James Stark, Ricardo A Mosquera
Central Congenital Hypoventilation Syndrome (CCHS) is a rare diagnosis that presents with various forms of autonomic dysfunction. The disease is characterized by reduced chemoreflexes and severe hypoventilation during sleep. Several case reports have noted that patients with CCHS have been found to suffer from hypoglycemic episodes, which frequently present as a seizure. In this report, we will review previous case presentations to alert the physicians about this association with hypoglycemic episodes. Early treatment and monitoring of hypoglycemia will prevent further complications for these populations...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28062187/dentate-gyrus-autonomous-ictal-activity-in-the-status-epilepticus-rat-model-of-epilepsy
#9
Florian Weissinger, Matthias Wawra, Pawel Fidzinski, Mark Elsner, Hartmut Meierkord, Martin Holtkamp, Katharina Buchheim
The dentate gyrus (DG) as part of the hippocampal formation is believed to serve as a gatekeeper with strong inhibitory properties against uncontrolled propagation of neuronal activity from the entorhinal cortex and neocortical structures. In temporal lobe epilepsy, the DG becomes hyperexcitable and loses its gate function, enabling propagation of ictal activity into downstream structures such as CA3 and CA1 areas. Furthermore, the DG, apart from facilitating propagation, may also be able to autonomously generate ictal activity, but this point has remained open so far...
January 3, 2017: Brain Research
https://www.readbyqxmd.com/read/28056870/anti-n-methyl-d-aspartate-receptor-nmdar-antibody-encephalitis-presents-in-atypical-types-and-coexists-with-neuromyelitis-optica-spectrum-disorder-or-neurosyphilis
#10
Kaiyu Qin, Wenqing Wu, Yuming Huang, Dongmei Xu, Lei Zhang, Bowen Zheng, Meijuan Jiang, Cheng Kou, Junhua Gao, Wurong Li, Jinglin Zhang, Sumei Wang, Yanfei Luan, Chaoling Yan, Dan Xu, Xinmei Zheng
BACKGROUND: Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is a clinically heterogeneous disorder characterized by epileptic seizures, psychosis, dyskinesia, consciousness impairments, and autonomic instability. Symptoms are always various. Sometimes it presents in milder or incomplete forms. We report 4 cases of anti-NMDAR encephalitis with incomplete forms, 3 cases of which were accompanied by neuromyelitis optica spectrum disorder or neurosyphilis respectively. CASE PRESENTATION: A 33-year-old man presented with dysarthria, movement disorder and occasional seizures...
January 5, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28043059/determining-factors-of-electrocardiographic-abnormalities-in-patients-with-epilepsy-a-case-control-study
#11
Jorge Murilo Barbosa de Sousa, Guilherme Loureiro Fialho, Peter Wolf, Roger Walz, Katia Lin
Sudden unexpected death in epilepsy (SUDEP) is a major cause of mortality in young patients with epilepsy (PWE). Although its mechanisms are still poorly understood, they may include cardiorespiratory dysfunction. Standard 12-lead electrocardiograms (ECGs) were obtained from 62 consecutive patients (aged 18-66y) with a definite diagnosis of epilepsy, without seizures at the day of ECG, and 57 healthy controls matched for sex, age and body mass index (BMI). All ECGs were evaluated by a blinded board-certified cardiologist...
December 20, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28030998/the-role-of-thalamus-versus-cortex-in-epilepsy-evidence-from-human-ictal-centromedian-recordings-in-patients-assessed-for-deep-brain-stimulation
#12
David Martín-López, Diego Jiménez-Jiménez, Lidia Cabañés-Martínez, Richard P Selway, Antonio Valentín, Gonzalo Alarcón
BACKGROUND: The onset of generalized seizures is a long debated subject in epilepsy. The relative roles of cortex and thalamus in initiating and maintaining the different seizure types are unclear. OBJECTIVE: The purpose of the study is to estimate whether the cortex or the centromedian thalamic nucleus is leading in initiating and maintaining seizures in humans. METHODS: We report human ictal recordings with simultaneous thalamic and cortical electrodes from three patients without anesthesia being assessed for deep brain stimulation (DBS)...
October 24, 2016: International Journal of Neural Systems
https://www.readbyqxmd.com/read/28018466/a-young-child-of-anti-nmda-receptor-encephalitis-presenting-with-epilepsia-partialis-continua-the-first-pediatric-case-in-korea
#13
Eun-Hee Kim, Yeo Jin Kim, Tae-Sung Ko, Mi-Sun Yum, Jun Hwa Lee
Anti-N-methyl D-aspartate receptor (anti-NMDAR) encephalitis, recently recognized as a form of paraneoplastic encephalitis, is characterized by a prodromal phase of unspecific illness with fever that resembles a viral disease. The prodromal phase is followed by seizures, disturbed consciousness, psychiatric features, prominent abnormal movements, and autonomic imbalance. Here, we report a case of anti-NMDAR encephalitis with initial symptoms of epilepsia partialis continua in the absence of tumor. Briefly, a 3-year-old girl was admitted to the hospital due to right-sided, complex partial seizures without preceding febrile illness...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28017557/epileptic-phenotypes-electroclinical-features-and-clinical-characteristics-in-17-children-with-anti-nmdar-encephalitis
#14
E Haberlandt, M Ensslen, U Gruber-Sedlmayr, B Plecko, M Brunner-Krainz, M Schimmel, S Schubert-Bast, U Neirich, H Philippi, G Kurleman, M Tardieu, G Wohlrab, I Borggraefe, K Rostásy
BACKGROUND: Anti-N-methyl d-aspartate receptor (NMDAR) encephalitis is a rare disorder characterized by seizures, neuropsychiatric symptoms, dyskinesia and autonomic instability. OBJECTIVE: Aim of the present study was to evaluate the seizure phenotypes and electroencephalogram (EEG) features in children with anti-NMDAR encephalitis. METHODS: Seizure types, electroclinical features and clinical characteristics of 17 children with anti-NMDAR encephalitis were analysed in a retrospective case series from nine centres in Europe...
December 5, 2016: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28011390/reversible-mri-findings-in-a-case-of-acute-intermittent-porphyria-with-a-novel-mutation-in-the-porphobilinogen-deaminase-gene
#15
Jing Yang, Hang Yang, Qianlong Chen, Baolai Hua, Tienan Zhu, Yongqiang Zhao, Xuezhong Yu, Huadong Zhu, Zhou Zhou
Acute intermittent porphyria (AIP) is an autosomal dominant disorder caused by a partial deficiency of porphobilinogen deaminase (PBGD), the third enzyme in the of heme biosynthetic pathway. It can affect the autonomic, peripheral, and central nervous system. Posterior reversible encephalopathy syndrome is a clinicoradiological entity characterized by headache, seizures, altered consciousness, and visual disorder associated with potentially reversible neuroradiological abnormalities predominantly in the parieto-occipital lobes...
December 18, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/27988965/ictal-asystole-a-systematic-review
#16
Dalma Tényi, Csilla Gyimesi, Péter Kupó, Réka Horváth, Beáta Bóné, Péter Barsi, Norbert Kovács, Tamás Simor, Zsuzsa Siegler, László Környei, András Fogarasi, József Janszky
OBJECTIVE: To comprehensively analyze ictal asystole (IA) on a large number of subjects. METHODS: We performed a systematic review of case report studies of patients diagnosed with IA (1983-2016). Each included case was characterized with respect to patient history, IA seizure characteristics, diagnostic workup, and therapy. In addition, comparative analyses were also carried out: two alignments were developed based on the delay between epilepsy onset and IA onset ("new-onset" if <1 year, "late-onset" if ≥1 year) and asystole duration (asystole was "very prolonged" if lasted >30 s)...
December 18, 2016: Epilepsia
https://www.readbyqxmd.com/read/27899309/repeated-misdiagnosis-of-a-relapsed-atypical-anti-nmda-receptor-encephalitis-without-an-associated-ovarian-teratoma
#17
Weihe Zhang, Li Yan, Jinsong Jiao
We present an atypical case of relapsed anti-NMDAR encephalitis in a young female patient without an associated ovarian teratoma. She presented with recurrent seizure attacks with muscle weakness, psychosis, dyskinesia, autonomic failure and insomnia. She was first misdiagnosed as mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) then Hashimoto's encephalopathy due to diffuse cerebral lesions, elevated serum lactic acid concentration, increased amount of thyroid peroxidase and thyroglobulin antibodies in serum and diffuse lesions of the thyroid gland...
January 18, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/27876179/prevalence-and-risk-factors-of-peri-ictal-autonomic-changes-in-children-with-temporal-lobe-seizures
#18
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/27876089/rapid-onset-obesity-hypoventilation-hypothalamic-dysfunction-autonomic-dysregulation-and-neuroendocrine-tumor-syndrome-with-a-homogenous-enlargement-of-the-pituitary-gland-a-case-report
#19
Lama Aljabban, Lina Kassab, Nour Alhuda Bakoura, Mohammad Fayez Alsalka, Ismaeil Maksoud
BACKGROUND: Rapid-onset obesity with hypoventilation, hypothalamic dysfunction, and autonomic dysregulation syndrome is a rare pediatric disorder with a variable sequence of clinical presentations, undefined etiology, and high risk of mortality. Our patient presented an unusual course of the disease accompanied by a homogenous mild enlargement of her pituitary gland with an intact pituitary-endocrine axis which, to the best of our knowledge, represents a new finding in rapid-onset obesity with hypoventilation, hypothalamic dysfunction, and autonomic dysregulation syndrome...
November 22, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27857782/heart-type-fatty-acid-binding-protein-as-a-predictor-of-cardiac-ischemia-in-intractable-seizures-in-children
#20
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
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