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neonatal EEG

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https://www.readbyqxmd.com/read/28282552/periictal-activity-in-cooled-asphyxiated-neonates-with-seizures
#1
Philippe Major, Anne Lortie, Mathieu Dehaes, Gregory Anton Lodygensky, Anne Gallagher, Lionel Carmant, Ala Birca
PURPOSE: Seizures are common in critically ill neonates. Both seizures and antiepileptic treatments may lead to short term complications and worsen the outcomes. Predicting the risks of seizure reoccurrence could enable individual treatment regimens and better outcomes. We aimed to identify EEG signatures of seizure reoccurrence by investigating periictal electrographic features and spectral power characteristics in hypothermic neonates with hypoxic-ischemic encephalopathy (HIE) with or without reoccurrence of seizures on rewarming...
March 2, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28274169/safety-and-efficacy-of-topiramate-in-neonates-with-hypoxic-ischemic-encephalopathy-treated-with-hypothermia-neonati-a-feasibility-study
#2
Luca Filippi, Patrizio Fiorini, Serena Catarzi, Elettra Berti, Letizia Padrini, Elisa Landucci, Gianpaolo Donzelli, Laura Bartalena, Erika Fiorentini, Antonio Boldrini, Matteo Giampietri, Rosa Teresa Scaramuzzo, Giancarlo la Marca, Maria Luisa Della Bona, Simona Fiori, Francesca Tinelli, Ada Bancale, Andrea Guzzetta, Giovanni Cioni, Tiziana Pisano, Melania Falchi, Renzo Guerrini
Purpose To investigate the feasibility of a study based on treatment with topiramate added to moderate hypothermia in newborns with hypoxic ischemic encephalopathy (HIE). Materials and methods Multicenter randomized controlled trial. Term newborns with precocious metabolic, clinical and electroencephalographic (EEG) signs of HIE were selected according to their amplified integrated EEG pattern and randomized to receive either topiramate (10 mg/kg once a day for the first three days of life) plus moderate hypothermia or hypothermia alone...
March 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28268981/application-of-independent-component-analysis-to-remove-linear-dependencies-in-eeg-recorded-in-hippocampus
#3
J Harry Blaise, Taikang Ning
Linear cross-spectral and nonlinear cross-bispectral analysis techniques were applied to EEG data recorded simultaneously in two subfields (CA1 and dentate gyrus) of the hippocampus in freely behaving neonatal rats during REM sleep. Linear dependencies between the two sites were specifically removed using independent component analysis (ICA). The cross-spectrum and the cross-bispectrum computed prior to ICA processing were compared with those after ICA processing to determine its effects. Our results indicate that ICA almost completely extracts the linear relationship in the theta frequency band between CA1 and the dentate gyrus...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268472/application-of-audio-fingerprinting-to-neonatal-eeg
#4
B M Murphy, C O'Driscoll, I Korotchikova, G B Boylan, G Lightbody, W P Marnane
A clinical neurophysiologist must recognize patterns in EEG signals to evaluate the health of a patient's brain activity. Rare or unusual patterns may take time to correctly identify. The ability to automatically assist this recall would be beneficial in ensuring that appropriate measures could be taken in a timely fashion. Audio fingerprinting is a method used to identify songs using only a snippet of the song. Fingerprints are extracted from a sub-section of the song and matched against a database of previously computed fingerprints...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28252661/predictive-value-of-amplitude-integrated-eeg-aeeg-after-rescue-hypothermic-neuroprotection-for-hypoxic-ischemic-encephalopathy-a-meta-analysis
#5
M Chandrasekaran, B Chaban, P Montaldo, S Thayyil
OBJECTIVE: Amplitude-integrated electroencephalography (aEEG) is a useful bedside tool in predicting the neurodevelopmental outcome after neonatal encephalopathy; however, the prognostic accuracy may be altered by rescue hypothermic neuroprotection. The objective of this study is to examine the prognostic accuracy of aEEG for predicting long-term neurodevelopmental outcomes in term newborn infants undergoing therapeutic hypothermia for neonatal encephalopathy. STUDY DESIGN: We examined all studies (Medline, Cumulative Index to Nursing and Allied Health Literature and the Cochrane Library; 2000 to 2014) comparing aEEG (6, 24, 48 or 72 h) in term encephalopathic babies undergoing therapeutic hypothermia, with neurodevelopmental outcome at 1 year or more...
March 2, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28237690/corticokinematic-coherence-as-a-new-marker-for-somatosensory-afference-in-newborns
#6
Eero Smeds, Sampsa Vanhatalo, Harri Piitulainen, Mathieu Bourguignon, Veikko Jousmäki, Riitta Hari
OBJECTIVE: Somatosensory evoked potentials have high prognostic value in neonatal intensive care, but their recording from infants is challenging. Here, we studied the possibility to elicit cortical responses in newborns by simple passive hand movements. METHODS: We examined 13 newborns (postnatal age 1-46days) during clinically indicated 19-channel electroencephalography (EEG) recordings in the neonatal intensive care unit; EEG indications included birth asphyxia and suspected epileptic seizures...
April 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28227191/application-of-independent-component-analysis-to-remove-linear-dependencies-in-eeg-recorded-in-hippocampus
#7
J Harry Blaise, Taikang Ning, J Harry Blaise, Taikang Ning, Taikang Ning
Linear cross-spectral and nonlinear cross-bispectral analysis techniques were applied to EEG data recorded simultaneously in two subfields (CA1 and dentate gyrus) of the hippocampus in freely behaving neonatal rats during REM sleep. Linear dependencies between the two sites were specifically removed using independent component analysis (ICA). The cross-spectrum and the cross-bispectrum computed prior to ICA processing were compared with those after ICA processing to determine its effects. Our results indicate that ICA almost completely extracts the linear relationship in the theta frequency band between CA1 and the dentate gyrus...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226645/application-of-audio-fingerprinting-to-neonatal-eeg
#8
B M Murphy, C O'Driscoll, I Korotchikova, G B Boylan, G Lightbody, W P Marnane, B M Murphy, C O'Driscoll, I Korotchikova, G B Boylan, G Lightbody, W P Marnane, C O'driscoll, G Lightbody, W P Marnane, I Korotchikova, G B Boylan, B M Murphy
A clinical neurophysiologist must recognize patterns in EEG signals to evaluate the health of a patient's brain activity. Rare or unusual patterns may take time to correctly identify. The ability to automatically assist this recall would be beneficial in ensuring that appropriate measures could be taken in a timely fashion. Audio fingerprinting is a method used to identify songs using only a snippet of the song. Fingerprints are extracted from a sub-section of the song and matched against a database of previously computed fingerprints...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217152/value-of-electroencephalographic-monitoring-in-newborns-with-hypoxic-ischemic-encephalopathy-treated-with-hypothermia
#9
Hatem Hamed Elshorbagy, Ahmed A Azab, Naglaa M Kamal, Naglaa Fathy Barseem, Mohamed M Bassiouny, Mostafa A Elsayed, Tohamy H Elkhouly
BACKGROUND: The values of electroencephalography (EEG) in neonatal hypoxic-ischemic encephalopathy (HIE) during therapeutic hypothermia (TH) are still uncertain. AIMS: The aim of this study is to detect EEG background, the prevalence of seizures during cooling, and to determine different EEG patterns that can predict brain injury in magnetic resonance imaging (MRI). PATIENTS AND METHODS: Thirty-nine newborns with HIE were subjected to TH. Continuous monitoring by video-EEG was carried out throughout cooling and during rewarming...
October 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28209769/seizures-in-children-with-cerebral-palsy-and-white-matter-injury
#10
Monica S Cooper, Mark T Mackay, Michael Fahey, Dinah Reddihough, Susan M Reid, Katrina Williams, A Simon Harvey
OBJECTIVE: The goal of this study was to describe the prevalence, syndromes, and evolution of seizure disorders in children with cerebral palsy (CP) due to white matter injury (WMI). METHODS: For this population-based cohort study, brain MRI scans and medical records were reviewed in children in the Victorian Cerebral Palsy Register born between 1999 and 2006 recorded as having WMI. Children were excluded if they had features of an undiagnosed syndrome, associated cortical malformation or injury, or no medical contact in the preceding year...
March 2017: Pediatrics
https://www.readbyqxmd.com/read/28206999/early-eeg-power-predicts-mri-injury-in-infants-with-hypoxic-ischemic-encephalopathy
#11
S V Jain, J M Zempel, P Srinivasakumar, M Wallendorf, A Mathur
OBJECTIVE: Early identification of infants with hypoxic-ischemic encephalopathy who have adverse outcomes despite neuroprotection with therapeutic hypothermia (TH) is urgently needed. Recent studies have found limited value of amplitude integrated EEG (aEEG) for predicting short-term outcomes in this population. Other quantitative electroencephalography (EEG) variables reflecting EEG amplitude, such as EEG power, could provide early stratification of a high-risk cohort in this population...
February 16, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28193115/characterization-of-death-in-neonatal-encephalopathy-in-the-hypothermia-era
#12
Monica E Lemmon, Renee D Boss, Sonia L Bonifacio, Audrey Foster-Barber, A James Barkovich, Hannah C Glass
This study aimed to characterize the circumstances of death in encephalopathic neonates treated with therapeutic hypothermia. Patients who died after or during treatment with therapeutic hypothermia between 2007-2014 were identified. Patient circumstance of death was characterized using an established paradigm. Thirty-one of 229 patients died (14%) at a median of 3 days of life. Most who died were severely encephalopathic on examination (90%) and had severely abnormal electroencephalographic (EEG) findings (87%)...
March 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28173650/-clinical-and-genetic-analysis-of-hyperekplexia-in-a-chinese-child-and-literature-review
#13
H Li, Z X Yang, J Xue, P Qian, X Y Liu
Objective: To investigate the clinical and genetic features of a Chinese child with hyperekplexia and review the related literature. Method: The clinical and genetic data of one patient with hyperekplexia, who had visited the department of Pediatrics, Peking University First Hospital in July 2012, were analyzed. "Hyperekplexia" "startle disease" "GLRB" were used as key words to search at CNKI, Wanfang and PubMed from the database from creation to August 2016. Result: The one-year-old female patient showed exaggerated startle reflexes and generalized stiffness in response to external sudden, unexpected stimuli at 2 hours after birth, which existed every day...
February 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28167405/exploring-temporal-information-in-neonatal-seizures-using-a-dynamic-time-warping-based-svm-kernel
#14
Rehan Ahmed, Andriy Temko, William P Marnane, Geraldine Boylan, Gordon Lightbody
Seizure events in newborns change in frequency, morphology, and propagation. This contextual information is explored at the classifier level in the proposed patient-independent neonatal seizure detection system. The system is based on the combination of a static and a sequential SVM classifier. A Gaussian dynamic time warping based kernel is used in the sequential classifier. The system is validated on a large dataset of EEG recordings from 17 neonates. The obtained results show an increase in the detection rate at very low false detections per hour, particularly achieving a 12% improvement in the detection of short seizure events over the static RBF kernel based system...
March 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28166364/interrater-agreement-in-the-interpretation-of-neonatal-electroencephalography-in-hypoxic-ischemic-encephalopathy
#15
Courtney J Wusthoff, Joseph Sullivan, Hannah C Glass, Renée A Shellhaas, Nicholas S Abend, Taeun Chang, Tammy N Tsuchida
OBJECTIVE: Research using neonatal electroencephalography (EEG) has been limited by a lack of a standardized classification system and interpretation terminology. In 2013, the American Clinical Neurophysiology Society (ACNS) published a guideline for standardized terminology and categorization in the description of continuous EEG in neonates. We sought to assess interrater agreement for this neonatal EEG categorization system as applied by a group of pediatric neurophysiologists. METHODS: A total of 60 neonatal EEG studies were collected from three institutions...
March 2017: Epilepsia
https://www.readbyqxmd.com/read/28161194/bumetanide-reduce-the-seizure-susceptibility-induced-by-pentylenetetrazol-via-inhibition-of-aberrant-hippocampal-neurogenesis-in-neonatal-rats-after-hypoxia-ischemia
#16
Jiang-Jian Hu, Xing-Liang Yang, Wen-Di Luo, Song Han, Jun Yin, Wan-Hong Liu, Xiao-Hua He, Bi-Wen Peng
Hypoxia-ischemia brain damage (HIBD) is one of prevalent causes of neonatal mortality and morbidity. Our data demonstrated that hypoxia-ischemia (HI) induced Na(+)-K(+)-Cl(-)-co-transporter 1 (NKCC1) increasing in hippocampus. Previous studies demonstrated that NKCC1 regulates various stages of neurogenesis. In this study, we studied the role of increased NKCC1 in regulating of HI-induced neurogenesis. HIBD model was established in 7days old Sprague-Dawley rat pup, and the expression of NKCC1 was detected by western blot and qPCR...
February 2, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28139826/neonatal-nonepileptic-myoclonus-is-a-prominent-clinical-feature-of-kcnq2-gain-of-function-variants-r201c-and-r201h
#17
Sarah B Mulkey, Bruria Ben-Zeev, Joost Nicolai, John L Carroll, Sabine Grønborg, Yong-Hui Jiang, Nishtha Joshi, Megan Kelly, David A Koolen, Mohamad A Mikati, Kristen Park, Phillip L Pearl, Ingrid E Scheffer, Rebecca C Spillmann, Maurizio Taglialatela, Silvia Vieker, Sarah Weckhuysen, Edward C Cooper, Maria Roberta Cilio
OBJECTIVE: To analyze whether KCNQ2 R201C and R201H variants, which show atypical gain-of-function electrophysiologic properties in vitro, have a distinct clinical presentation and outcome. METHODS: Ten children with heterozygous, de novo KCNQ2 R201C or R201H variants were identified worldwide, using an institutional review board (IRB)-approved KCNQ2 patient registry and database. We reviewed medical records and, where possible, interviewed parents and treating physicians using a structured, detailed phenotype inventory focusing on the neonatal presentation and subsequent course...
March 2017: Epilepsia
https://www.readbyqxmd.com/read/28130246/severe-hypercapnia-causes-reversible-depression-of-aeeg-background-activity-in-neonates-an-observational-study
#18
Lauren C Weeke, Laura M L Dix, Floris Groenendaal, Petra M A Lemmers, Koen P Dijkman, Peter Andriessen, Linda S de Vries, Mona C Toet
INTRODUCTION: Elevated carbon dioxide (CO2) blood levels have a depressant effect on the central nervous system and can lead to coma in adults. Less is known about the effect of CO2 on the neurological function of infants. OBJECTIVE: To describe the effect of acute severe hypercapnia (PaCO2 >70 mm Hg) on amplitude-integrated electroencephalography (aEEG) and cerebral oxygenation in newborn infants. STUDY DESIGN: Observational study of full-term and preterm infants with acute severe hypercapnia (identified by arterial blood gas measurements), monitored with aEEG...
January 27, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28112458/plasticity-of-neonatal-neuronal-networks-in-very-premature-infants-source-localization-of-temporal-theta-activity-the-first-endogenous-neural-biomarker-in-temporoparietal-areas
#19
L Routier, M Mahmoudzadeh, M Panzani, H Azizollahi, S Goudjil, G Kongolo, F Wallois
Temporal theta slow-wave activity (TTA-SW) in premature infants is a specific signature of the early development of temporal networks, as it is observed at the turning point between non-sensory driven spontaneous local processing and cortical network functioning. The role in development and the precise location of TTA-SW remain unknown. Previous studies have demonstrated that preterms from 28 weeks of gestational age (wGA) are able to discriminate phonemes and voice, supporting the idea of a prior genetic structural or activity-dependent fingerprint that would prepare the auditory network to compute auditory information at the onset of thalamocortical connectivity...
January 23, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28112011/optimal-duration-of-continuous-video-electroencephalography-in-term-infants-with-hypoxic-ischemic-encephalopathy-and-therapeutic-hypothermia
#20
Naeem Mahfooz, Arie Weinstock, Bushra Afzal, Mariam Noor, David Vargas Lowy, Osman Farooq, Sarah G Finnegan, Satyan Lakshminrusimha
Continuous video-electroencephalography (EEG) is an important diagnostic and prognostic tool in newborns with hypoxic-ischemic encephalopathy undergoing therapeutic hypothermia. The optimal duration of continuous video-EEG during whole-body hypothermia is not known. We conducted a retrospective study of 35 neonates with hypoxic-ischemic encephalopathy undergoing whole-body hypothermia with continuous video-EEG. EEG ictal changes were detected in 9/35 infants (26%). Of these 9 infants, the seizures were initially observed within 30 minutes of EEG monitoring in 6 (67%), within 24 hours in 2 (22%), and during rewarming in 1 infant (11%)...
January 1, 2017: Journal of Child Neurology
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