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neonatal EEG

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https://www.readbyqxmd.com/read/28081533/eeg-monitoring-technique-influences-the-management-of-hypoxic-ischemic-seizures-in-neonates-undergoing-therapeutic-hypothermia
#1
Saber Jan, Frances J Northington, Charlamaine M Parkinson, Carl E Stafstrom
Electroencephalogram (EEG) monitoring techniques for neonatal hypoxia-ischemia (HI) are evolving over time, and the specific type of EEG utilized could influence seizure diagnosis and management. We examined whether the type of EEG performed affected seizure treatment decisions (e.g., the choice and number of antiseizure drugs [ASDs]) in therapeutic hypothermia-treated neonates with HI from 2007 to 2015 in the Johns Hopkins Hospital Neonatal Intensive Care Unit. During this period, 3 different EEG monitoring protocols were utilized: Period 1 (2007-2009), single, brief conventional EEG (1 h duration) at a variable time during therapeutic hypothermia treatment, i...
January 17, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28062149/prediction-of-neonatal-seizures-in-hypoxic-ischemic-encephalopathy-using-electroencephalograph-power-analyses
#2
Siddharth V Jain, Amit Mathur, Preethi Srinivasakumar, Michael Wallendorf, Joseph P Culver, John M Zempel
BACKGROUND: The severity of the initial encephalopathy in neonatal hypoxic-ischemic encephalopathy correlates with seizure burden. Early electroencephalograph (EEG) background activity reflects the severity of encephalopathy. Thus, we hypothesized that early EEG background would be predictive of subsequent seizures in neonatal hypoxic-ischemic encephalopathy. METHODS: This study included infants undergoing therapeutic hypothermia at St. Louis Children's Hospital between January 2009 and April 2013...
November 11, 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/28011948/molecular-hydrogen-affords-neuroprotection-in-a-translational-piglet-model-of-hypoxic-ischemic-encephalopathy
#3
J Nemeth, V Toth-Szuki, V Varga, V Kovacs, G Remzso, F Domoki
Hypoxic-ischemic encephalopathy (HIE) is the major consequence of perinatal asphyxia (PA) in term neonates. Although the newborn piglet is an accepted large animal PA/HIE model, there is no consensus on PA-induction methodology to produce clinically relevant HIE. We aimed to create and to characterize a novel PA model faithfully reproducing all features of asphyxiation including severe hypercapnia resulting in HIE, and to test whether H2 is neuroprotective in this model. Piglets were anaesthetised, artificially ventilated, and intensively monitored (electroencephalography, core temperature, O2 saturation, arterial blood pressure and blood gases)...
October 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28011082/-neonatal-arterial-ischemic-stroke-review-of-the-current-guidelines
#4
E Saliba, T Debillon, S Auvin, O Baud, V Biran, J-L Chabernaud, S Chabrier, F Cneude, A-G Cordier, V Darmency-Stamboul, J-F Diependaele, T Debillon, M Dinomais, C Durand, A Ego, G Favrais, Y Gruel, L Hertz-Pannier, B Husson, S Marret, S N'Guyen The Tich, T Perez, E Saliba, J-B Valentin, C Vuillerot
Neonatal arterial ischemic stroke (NAIS) is a rare event that occurs in approximately one in 5000 term or close-to-term infants. Most affected infants will present with seizures. Although a well-recognized clinical entity, many questions remain regarding diagnosis, risk factors, treatment, and follow-up modalities. In the absence of a known pathophysiological mechanism and lack of evidence-based guidelines, only supportive care is currently provided. To address these issues, a French national committee set up by the French Neonatal Society (Société française de néonatologie) and the national referral center (Centre national de référence) for arterial ischemic stroke in children drew up guidelines based on an HAS (Haute Autorité de santé [HAS]; French national authority for health) methodology...
December 20, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28009337/wireless-multichannel-electroencephalography-in-the-newborn
#5
Z H Ibrahim, G Chari, S Abdel Baki, V Bronshtein, M R Kim, J Weedon, J Cracco, J V Aranda
OBJECTIVES: First, to determine the feasibility of an ultra-compact wireless device (microEEG) to obtain multichannel electroencephalographic (EEG) recording in the Neonatal Intensive Care Unit (NICU). Second, to identify problem areas in order to improve wireless EEG performance. STUDY DESIGN: 28 subjects (gestational age 24-30 weeks, postnatal age <30 days) were recruited at 2 sites as part of an ongoing study of neonatal apnea and wireless EEG. Infants underwent 8-9 hour EEG recordings every 2-4 weeks using an electrode cap (ANT-Neuro) connected to the wireless EEG device (Bio-Signal Group)...
2016: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/27923187/sleep-eeg-patterns-in-infants-with-congenital-zika-virus-syndrome
#6
Maria Durce Costa Gomes Carvalho, Demócrito de Barros Miranda-Filho, Vanessa van der Linden, Paula Fabiana Sobral, Regina Coeli Ferreira Ramos, Maria Ângela Wanderley Rocha, Marli Tenório Cordeiro, Sarah Pinheiro de Alencar, Magda Lahorgue Nunes
OBJECTIVES: To describe sleep EEG patterns of neonates, and infants with microcephaly due to congenital Zika virus (ZikV) syndrome. METHODS: A descriptive case series of EEGs performed in a cohort of neonates with microcephaly monitored from October 2015 to February 2016 at a University Hospital in Northeast Brazil. Infants were investigated following an established protocol that includes EEG, neuroimaging studies, PCR and specific antibodies for ZikV detection...
January 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27898690/isoflurane-exposure-induces-cell-death-microglial-activation-and-modifies-the-expression-of-genes-supporting-neurodevelopment-and-cognitive-function-in-the-male-newborn-piglet-brain
#7
Kevin D Broad, Jane Hassell, Bobbi Fleiss, Go Kawano, Mojgan Ezzati, Eridan Rocha-Ferreira, Mariya Hristova, Kate Bennett, Igor Fierens, Ryan Burnett, Badr Chaban, Daniel Alonso-Alconada, Aaron Oliver-Taylor, Ilias Tachsidis, Jamshid Rostami, Pierre Gressens, Robert D Sanders, Nicola J Robertson
Exposure of the brain to general anesthesia during early infancy may adversely affect its neural and cognitive development. The mechanisms mediating this are complex, incompletely understood and may be sexually dimorphic, but include developmentally inappropriate apoptosis, inflammation and a disruption to cognitively salient gene expression. We investigated the effects of a 6h isoflurane exposure on cell death, microglial activation and gene expression in the male neonatal piglet brain. Piglets (n = 6) were randomised to: (i) naive controls or (ii) 6h isoflurane...
2016: PloS One
https://www.readbyqxmd.com/read/27895691/prognostic-factors-of-neurological-outcomes-in-late-preterm-and-term-infants-with-perinatal-asphyxia
#8
Sun Young Seo, Gyu Hong Shim, Myoung Jae Chey, Su Jeong You
PURPOSE: This study aimed to identify prognostic factors of neurological outcomes, including developmental delay, cerebral palsy and epilepsy in late-preterm and term infants with perinatal asphyxia. METHODS: All late-preterm and term infants with perinatal asphyxia or hypoxic-ischemic insults who admitted the neonatal intensive care unit of Inje University Sanggye Paik Hospital between 2006 and 2014 and were followed up for at least 2 years were included in this retrospective study...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/27891080/enhanced-burst-suppression-and-disruption-of-local-field-potential-synchrony-in-a-mouse-model-of-focal-cortical-dysplasia-exhibiting-spike-wave-seizures
#9
Anthony J Williams, Chen Zhou, Qian-Quan Sun
Focal cortical dysplasias (FCDs) are a common cause of brain seizures and are often associated with intractable epilepsy. Here we evaluated aberrant brain neurophysiology in an in vivo mouse model of FCD induced by neonatal freeze lesions (FLs) to the right cortical hemisphere (near S1). Linear multi-electrode arrays were used to record extracellular potentials from cortical and subcortical brain regions near the FL in anesthetized mice (5-13 months old) followed by 24 h cortical electroencephalogram (EEG) recordings...
2016: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/27872899/de-novo-fgf12-mutation-in-2-patients-with-neonatal-onset-epilepsy
#10
Ilaria Guella, Linda Huh, Marna B McKenzie, Eric B Toyota, E Martina Bebin, Michelle L Thompson, Gregory M Cooper, Daniel M Evans, Sarah E Buerki, Shelin Adam, Margot I Van Allen, Tanya N Nelson, Mary B Connolly, Matthew J Farrer, Michelle Demos
OBJECTIVE: We describe 2 additional patients with early-onset epilepsy with a de novo FGF12 mutation. METHODS: Whole-exome sequencing was performed in 2 unrelated patients with early-onset epilepsy and their unaffected parents. Genetic variants were assessed by comparative trio analysis. Clinical evolution, EEG, and neuroimaging are described. The phenotype and response to treatment was reviewed and compared to affected siblings in the original report. RESULTS: We identified the same FGF12 de novo mutation reported previously (c...
December 2016: Neurology. Genetics
https://www.readbyqxmd.com/read/27857618/continuous-video-eeg-in-neonates-emerging-trends-and-paradigms
#11
Ajay Gupta
No abstract text is available yet for this article.
November 2016: Epilepsy Currents
https://www.readbyqxmd.com/read/27855152/heart-rate-variability-in-hypoxic-ischemic-encephalopathy-during-therapeutic-hypothermia
#12
Robert M Goulding, Nathan J Stevenson, Deirdre M Murray, Vicki Livingstone, Peter M Filan, Geraldine B Boylan
BACKGROUND: Therapeutic hypothermia (TH) aims to ameliorate further injury in infants with moderate and severe hypoxic ischemic encephalopathy (HIE). We aim to assess the effect of TH on heart rate variability (HRV) in infants with HIE. METHODS: Multi-channel video-electroencephalography (EEG) and electrocardiography were assessed at 6-72h after birth in full-term infants with HIE, recruited prior to (pre-TH group) and following (TH group) the introduction of TH in our neonatal unit...
November 17, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27852731/forward-and-inverse-effects-of-the-complete-electrode-model-in-neonatal-eeg
#13
Sampsa Pursiainen, Seok Lew, Carsten Hermann Wolters
This paper investigates finite element method (FEM) based modeling in the context of neonatal electroencephalography (EEG). In particular, the focus lies on electrode boundary conditions. We compare the complete electrode model (CEM) to the point electrode model (PEM), which is the current standard in EEG. In the CEM, the voltage experienced by an electrode is modeled more realistically as the integral average of the potential distribution over its contact surface, whereas the PEM relies on a point value. Consequently, the CEM takes into account the sub-electrode shunting currents which are absent in the PEM...
November 16, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27809371/abnormal-neurodevelopmental-outcomes-are-very-likely-in-cases-of-bilateral-neonatal-arterial-ischaemic-stroke
#14
Ju Hyun Jin, Jeong Eun Shin, Soon Min Lee, Ho Seon Eun, Min Soo Park, Kook In Park, Ran Namgung
AIM: Neonatal arterial ischaemic stroke (AIS) is an important cause of severe neurological disability. This study aimed to analyse the clinical manifestations and outcomes of AIS patients. METHODS: We enrolled neonates with AIS admitted to Severance Children's Hospital and Gangnam Severance Hospital between 2008 and 2015. AIS was confirmed using magnetic resonance imaging (MRI). We retrospectively reviewed the clinical manifestations, MRI findings, electroencephalography (EEG) findings and neurodevelopmental outcomes...
November 3, 2016: Acta Paediatrica
https://www.readbyqxmd.com/read/27792918/nutritive-sucking-induces-age-specific-eeg-changes-in-0-24-week-old-infants
#15
Johannes Lehtonen, Minna Valkonen-Korhonen, Stefanos Georgiadis, Mika P Tarvainen, Hanne Lappi, Juha-Pekka Niskanen, Ari Pääkkönen, Pasi A Karjalainen
Little is known how the brain of the newborn infant responds to the postnatal nutrition and care. No systematic studies exist in which the effects of nutritional and non-nutritional sucking on the brain activity of the infant were compared. We recorded the EEG activity of 40 infants at the ages of 0,6,12 and 24 weeks in four successive behavioral stages: while the infants were hungry and waiting for sucking, during non-nutritional and nutritional sucking, and during satiation after completed feeding. Quantitative EEG analysis was performed using occipital, parietal and central EEG channels...
October 25, 2016: Infant Behavior & Development
https://www.readbyqxmd.com/read/27789573/a-de-novo-missense-mutation-of-gabrb2-causes-early-myoclonic-encephalopathy
#16
Atsushi Ishii, Jing-Qiong Kang, Cara C Schornak, Ciria C Hernandez, Wangzhen Shen, Joseph C Watkins, Robert L Macdonald, Shinichi Hirose
BACKGROUND: Early myoclonic encephalopathy (EME), a disease with a devastating prognosis, is characterised by neonatal onset of seizures and massive myoclonus accompanied by a continuous suppression-burst EEG pattern. Three genes are associated with EMEs that have metabolic features. Here, we report a pathogenic mutation of an ion channel as a cause of EME for the first time. METHODS: Sequencing was performed for 214 patients with epileptic seizures using a gene panel with 109 genes that are known or suspected to cause epileptic seizures...
October 27, 2016: Journal of Medical Genetics
https://www.readbyqxmd.com/read/27763963/brief-potentially-ictal-rhythmic-discharges-b-i-rds-in-non-critically-ill-adults
#17
Ji Yeoun Yoo, Lara V Marcuse, Madeline C Fields, Jillian 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 non-critically 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...
October 19, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27753460/neonatal-eyelid-conditioning-during-sleep
#18
Amanda R Tarullo, Joseph R Isler, Carmen Condon, Kimon Violaris, Peter D Balsam, William P Fifer
Using an eyelid conditioning paradigm modeled after that developed by Little, Lipsitt, and Rovee-Collier (1984), Fifer et al. (2010) demonstrated that newborn infants learn during sleep. This study examined the role of sleep state in neonatal learning. We recorded electroencephalogram (EEG), respiratory, and cardiovascular activity from sleeping full term newborn infants during delay eyelid conditioning. In the experimental group (n = 21), a tone was paired with an air puff to the eye. Consistent with Fifer et al...
November 2016: Developmental Psychobiology
https://www.readbyqxmd.com/read/27749459/detecting-neonatal-seizures-with-computer-algorithms
#19
Andriy Temko, Gordon Lightbody
It is now generally accepted that EEG is the only reliable way to accurately detect newborn seizures and, as such, prolonged EEG monitoring is increasingly being adopted in neonatal intensive care units. Long EEG recordings may last from several hours to a few days. With neurophysiologists not always available to review the EEG during unsociable hours, there is a pressing need to develop a reliable and robust automatic seizure detection method-a computer algorithm that can take the EEG signal, process it, and output information that supports clinical decision making...
October 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27749458/seizures-in-preterm-infants
#20
Julia Jacobs, Emily M Spelbrink
Infants born prematurely are highly vulnerable to brain injury and susceptible to seizures in the first weeks of life. Many neonatal seizures occur without reliable clinical signs and are detectable only on electroencephalogram (EEG); understanding EEG findings in these neonates is crucial for providing appropriate care. This can be challenging, as EEG background activity and patterns vary considerably with gestational age. Some physiologic preterm EEG patterns, such as rhythmic temporal theta activity or delta brushes, may be sharply contoured and appear similar to epileptic EEG patterns later in life...
October 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
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