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neonatal stroke

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https://www.readbyqxmd.com/read/28429607/thalamic-hemorrhagic-stroke-in-the-term-newborn-a-specific-neonatal-syndrome-with-non-uniform-outcome
#1
Laura Merlini, Sylviane Hanquinet, Joel Fluss
BACKGROUND: Neonatal thalamic hemorrhagic stroke is related to cerebral sinus venous thrombosis and associated with neurological sequelae. Predicting factors are however lacking. METHODS: Clinical and radiological findings at onset and on follow-up of 5 neonates with thalamic hemorrhage stroke are described. RESULTS: All neonates presented with abrupt lethargy, ophistotonos, irritability and/or seizures. The thalamic hemorrhagic stroke was most often unilateral (4/5), involving the posterior/entire thalamus in 3 cases and the anterior thalamus in 2...
January 1, 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28416430/-extracorporeal-membrane-oxygenation-in-critically-ill-neonates-and-children
#2
J Rambaud, J Guilbert, I Guellec, S Jean, A Durandy, M Demoulin, A Amblard, R Carbajal, P-L Leger
Extracorporeal membrane oxygenation is used as a last resort during neonatal and pediatric resuscitation in case of refractory circulatory or respiratory failure under maximum conventional therapies. Different types of ECMO can be used depending on the initial failure. The main indications for ECMO are refractory respiratory failure (acute respiratory distress syndrome, status asthmaticus, severe pneumonia, meconium aspiration syndrome, pulmonary hypertension) and refractory circulatory failure (cardiogenic shock, septic shock, refractory cardiac arrest)...
April 14, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28394816/brain-mri-findings-in-pediatric-patients-post-ecmo
#3
Venessa L Pinto, Sumit Pruthi, Ashly C Westrick, Chevis N Shannon, Brian C Bridges, Truc M Le
Neurologic complications can occur with ECMO due to several factors. Prior studies identified neonates as having unique risk factors and neuro-imaging findings post-ECMO. The aim of this study is to describe brain MRI findings of pediatric patients treated with ECMO. We conducted a retrospective study of non-neonatal pediatric patients who underwent a comprehensive brain MRI after ECMO, between January 2000 and July 2015. We identified 47 pediatric patients in the study cohort with a median age of 8 months (IQR 3-170mo) and a median ECMO run duration of 7...
April 6, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28391015/administration-of-secretoneurin-is-protective-in-hypoxic-ischemic-neonatal-brain-injury-predominantly-in-the-hypoxic-only-hemisphere
#4
Anna Posod, Karina Wechselberger, Ruslan Iljitsch Stanika, Gerald J Obermair, Karina Wegleiter, Eva Huber, Martina Urbanek, Ursula Kiechl-Kohlendorfer, Elke Griesmaier
Neonatal brain injury is a problem of global importance. To date, no causal therapies are available. A substance with considerable therapeutic potential is the endogenous neuropeptide secretoneurin (SN), which has proven to be beneficial in adult stroke. The aim of this study was to assess its effect in neonatal hypoxic-ischemic brain injury models. In vitro, primary hippocampal neurons were pre-treated with vehicle, 1µg/ml, 10µg/ml, or 50µg/ml SN and subjected to oxygen-glucose deprivation (OGD) for six hours...
April 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/28380324/a-15-year-epileptogenic-period-after-perinatal-brain-injury
#5
F Pisani, E Pavlidis, C Facini, C La Morgia, C Fusco, G Cantalupo
Seizures are a frequent acute neurological event in the neonatal period. Up to 12 to 18% of all seizures in newborns are due to perinatal stroke and up to 39% of affected children can then develop epilepsy in childhood. We report the case of a young patient who presented stroke-related seizures in the neonatal period and then developed focal symptomatic epilepsy at 15 years of age, and in whom the epileptic focus was found to co-localize with the site of his ischemic brain lesion. Such a prolonged silent period before onset of remote symptomatic epilepsy has not previously been reported...
January 2017: Functional Neurology
https://www.readbyqxmd.com/read/28336156/pediatric-arterial-ischemic-stroke-epidemiology-risk-factors-and-management
#6
Ryan J Felling, Lisa R Sun, Emily C Maxwell, Neil Goldenberg, Timothy Bernard
Pediatric arterial ischemic stroke (AIS) is an uncommon but important cause of neurologic morbidity in neonates and children, with consequences including hemiparesis, intellectual disabilities, and epilepsy. The causes of pediatric AIS are unique to those typically associated with stroke in adults. Familiarity with the risk factors for AIS in children will help with efficient diagnosis, which is unfortunately frequently delayed. Here we review the epidemiology and risk factors for AIS in neonates and children...
March 7, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28285429/hypothermia-decreased-the-expression-of-heat-shock-proteins-in-neonatal-rat-model-of-hypoxic-ischemic-encephalopathy
#7
Byong Sop Lee, Euiseok Jung, Yeonjoo Lee, Sung-Hoon Chung
Hypothermia (HT) is a well-established neuroprotective strategy against neonatal hypoxic ischemic encephalopathy (HIE). The overexpression of heat shock proteins (HSP) has been shown to provide neuroprotection in animal models of stroke. We aimed to investigate the effect of HT on HSP70 and HSP27 expression in a neonatal rat model of HIE. Seven-day-old rat pups were exposed to hypoxia for 90 min to establish the Rice-Vannucci model and were assigned to the following four groups: hypoxic injury (HI)-normothermia (NT, 36 °C), HI-HT (30 °C), sham-NT, and sham-HT...
March 11, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28277939/potassium-channel-expression-and-function-in-microglia-plasticity-and-possible-species-variations
#8
Hai M Nguyen, Linda V Blomster, Palle Christophersen, Heike Wulff
Potassium channels play important roles in microglia functions and thus constitute potential targets for the treatment of neurodegenerative diseases like Alzheimer, Parkinson and stroke. However, uncertainty still prevails as to which potassium channels are expressed and at what levels in different species, how the expression pattern changes upon activation with M1 or M2 polarizing stimuli compared with more complex exposure paradigms, and - most importantly - how these findings relate to the in vivo situation...
March 1, 2017: Channels
https://www.readbyqxmd.com/read/28274640/clinical-predictors-of-attention-and-executive-functioning-outcomes-in-children-after-perinatal-arterial-ischemic-stroke
#9
Danielle D Bosenbark, Lauren Krivitzky, Rebecca Ichord, Arastoo Vossough, Aashim Bhatia, Laura E Jastrzab, Lori Billinghurst
BACKGROUND: Children with perinatal arterial ischemic stroke (PAIS) are at risk for later neurocognitive and behavioral deficits, yet the clinical predictors of these outcomes are understudied. We examined the influence of clinical and infarct characteristics on attention and executive functioning in children following PAIS. METHODS: Forty children born at term (≥37 weeks' gestation) with PAIS (28 with neonatal arterial ischemic stroke and 12 with presumed PAIS) underwent a comprehensive neuropsychological battery at age three to 16 years (median age 7...
January 25, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28262550/pathways-for-neuroimaging-of-neonatal-stroke
#10
REVIEW
Sarah Lee, David M Mirsky, Lauren A Beslow, Catherine Amlie-Lefond, Amy R Danehy, Laura Lehman, Nicholas V Stence, Arastoo Vossough, Max Wintermark, Michael J Rivkin
PURPOSE: To provide consensus-based, suggested imaging protocols to facilitate the accurate and timely diagnosis of a neonate with symptoms concerning for stroke. METHODS: The Writing Group, an international collaboration of pediatric neurologists and neuroradiologists with expertise in perinatal and childhood stroke, participated in a series of pediatric stroke neuroimaging symposia. These discussions, in conjunction with extensive literature review, led to a consensus for imaging protocols to guide practitioners in the diagnosis of neonatal stroke subtypes as defined by the National Institute of Neurological Disorders and Stroke Common Data Elements...
January 26, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28258054/thrombophilia-risk-is-not-increased-in-children-after-perinatal-stroke
#11
Colleen Curtis, Aleksandra Mineyko, Patricia Massicotte, Michael Leaker, Xiu Yan Jiang, Amalia Floer, Adam Kirton
Perinatal stroke causes cerebral palsy and lifelong disability. Specific diseases are definable but mechanisms are poorly understood. Evidence suggests possible associations between arterial perinatal stroke and prothrombotic disorders but population-based, controlled, disease-specific studies are limited. Understanding thrombophilia in perinatal stroke informs pathogenesis models and clinical management. We conducted a population-based, prospective, case-control study to determine the association of specific perinatal stroke diseases with known thrombophilias...
March 3, 2017: Blood
https://www.readbyqxmd.com/read/28254555/epidemiology-and-outcomes-of-arterial-ischemic-stroke-in-children-the-canadian-pediatric-ischemic-stroke-registry
#12
Gabrielle A deVeber, Adam Kirton, Frances A Booth, Jerome Y Yager, Elaine C Wirrell, Ellen Wood, Michael Shevell, Ann-Marie Surmava, Patricia McCusker, M Patricia Massicotte, Daune MacGregor, E Athen MacDonald, Brandon Meaney, Simon Levin, Bernard G Lemieux, Lawrence Jardine, Peter Humphreys, Michèle David, Anthony K C Chan, David J Buckley, Bruce H Bjornson
BACKGROUND: Pediatric arterial ischemic stroke remains incompletely understood. Population-based epidemiological data inform clinical trial design but are scant in this condition. We aimed to determine age-specific epidemiological characteristics of arterial ischemic stroke in neonates (birth to 28 days) and older children (29 days to 18 years). METHODS: We conducted a 16-year, prospective, national population-based study, the Canadian Pediatric Ischemic Stroke Registry, across all 16 Canadian acute care children's hospitals...
April 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28253550/olig1-is-required-for-noggin-induced-neonatal-myelin-repair
#13
Jennifer K Sabo, Vivi Heine, John C Silbereis, Lucas Schirmer, Steven W Levison, David H Rowitch
OBJECTIVE: Neonatal white matter injury (NWMI) is a lesion found in preterm infants that can lead to cerebral palsy. Although antagonists of bone morphogenetic protein (BMP) signaling, such as Noggin, promote oligodendrocyte precursor cell (OPC) production after hypoxic-ischemic (HI) injury, the downstream functional targets are poorly understood. The basic helix-loop-helix protein, oligodendrocyte transcription factor 1 (Olig1), promotes oligodendrocyte (OL) development and is essential during remyelination in adult mice...
April 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28211970/brain-hemorrhages-in-jacobsen-syndrome-a-retrospective-review-of-six-cases-and-clinical-recommendations
#14
Paul Grossfeld
Jacobsen syndrome is a rare chromosomal disorder caused by distal deletions in the long arm of chromosome 11. All patients with Jacobsen syndrome have Paris-Trousseau syndrome, a bleeding disorder that causes neonatal thrombocytopenia, and persistent platelet dysfunction. Despite that, to date there are no reported cases of hemorrhagic strokes occurring in patients with Jacobsen syndrome. In the last 6 years at least six cases of brain hemorrhages in patients with Jacobsen syndrome have occurred. In this report, we perform a retrospective review of these six cases...
March 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28194288/variability-in-clinical-presentation-of-neonatal-stroke-report-of-four-cases
#15
Sonia Joseph, Dimitrios Angelis, Robert Bennett, Bhargavi Kola, Amanda Hughes
Neonatal stroke can be a cause of long term neurodevelopmental disability, seizures, and impaired cognitive function. We present four cases of neonatal stroke, associated with different risk factors and clinical presentations. Two of these newborns were born to mothers with no prenatal care.
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28157749/arterial-ischemic-stroke-in-children-and-young-adults
#16
Warren D Lo, Riten Kumar
PURPOSE OF REVIEW: This article reviews risk factors, recurrence risk, evaluation, management, and outcomes of arterial ischemic stroke in children and young adults. RECENT FINDINGS: The risk for recurrence and mortality appear to be low for neonatal and childhood stroke. Most children have relatively mild deficits, but those who have greater neurologic deficits, poststroke epilepsy, or strokes early in life are at risk for lower overall cognitive function. Stroke recurrence and long-term mortality after stroke in young adults are greater than originally thought...
February 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28154122/measurement-of-lactate-content-and-amide-proton-transfer-values-in-the-basal-ganglia-of-a-neonatal-piglet-hypoxic-ischemic-brain-injury-model-using-mri
#17
Y Zheng, X-M Wang
BACKGROUND AND PURPOSE: As amide proton transfer imaging is sensitive to protein content and intracellular pH, it has been widely used in the nervous system, including brain tumors and stroke. This work aimed to measure the lactate content and amide proton transfer values in the basal ganglia of a neonatal piglet hypoxic-ischemic brain injury model by using MR spectroscopy and amide proton transfer imaging. MATERIALS AND METHODS: From 58 healthy neonatal piglets (3-5 days after birth; weight, 1-1...
February 2, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28121822/distinguishing-arterial-ischemic-stroke-from-hypoxic-ischemic-encephalopathy-in-the-neonate-at-birth
#18
Olaleye Sanu
No abstract text is available yet for this article.
February 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28114647/clinical-characteristics-risk-factors-and-outcomes-associated-with-neonatal-hemorrhagic-stroke-a-population-based-case-control-study
#19
Lauran Cole, Deborah Dewey, Nicole Letourneau, Bonnie J Kaplan, Kathleen Chaput, Clare Gallagher, Jacquie Hodge, Amalia Floer, Adam Kirton
Importance: Hemorrhage into the brain of term newborns often results in major injury and lifelong disability. The clinical epidemiology of neonatal hemorrhagic stroke (NHS) remains undefined, hindering the development of strategies to improve outcomes. Objective: To characterize the incidence, types, presentations, associated factors, and outcomes of neonatal hemorrhagic stroke. Design, Setting, and Participants: Population-based, nested case-control study...
March 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28114635/neonatal-hemorrhagic-stroke
#20
Catherine Amlie-Lefond, Jeffrey G Ojemann
No abstract text is available yet for this article.
March 1, 2017: JAMA Pediatrics
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