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Hypoxic ischemic encephalopathy in newborn

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https://www.readbyqxmd.com/read/30296665/a-comparison-of-levetiracetam-and-phenobarbital-for-the-treatment-of-neonatal-seizures-associated-with-hypoxic-ischemic-encephalopathy
#1
Lekha M Rao, Shaun A Hussain, Timothy Zaki, Alexander Cho, Teresa Chanlaw, Meena Garg, Raman Sankar
PURPOSE: Seizures are common in term infants with hypoxic-ischemic encephalopathy (HIE) undergoing therapeutic hypothermia. Although phenobarbital (PHB) is generally considered first-line therapy, some centers have embraced third-generation antiepileptic drugs (AEDs) such as levetiracetam (LEV) given the impression of comparable efficacy and superior tolerability. We set out to compare the efficacy of PHB and LEV in a large single-center cohort. METHODS: We retrospectively identified consecutive newborns with HIE who were monitored with continuous video-electroencephalogram (VEEG) for the duration of therapeutic hypothermia...
October 5, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/30282782/variation-in-use-by-nicu-types-in-the-united-states
#2
Erika M Edwards, Jeffrey D Horbar
: media-1vid110.1542/5828370139001PEDS-VA_2018-0457 Video Abstract BACKGROUND: Increased admissions of higher birth weight and less acutely ill infants to NICUs suggests that intensive care may be used inappropriately in these populations. We describe variation in use of NICU services by gestational age and NICU type. METHODS: Using the Vermont Oxford Network database of all NICU admissions, we assessed variation within predefined gestational age categories in the following proportions: admissions, initial NICU hospitalization days, high-acuity cases ≥34 weeks' gestation, and short-stay cases ≥34 weeks' gestation...
October 3, 2018: Pediatrics
https://www.readbyqxmd.com/read/30280069/subcutaneous-fat-necrosis-and-hypercalcemia-after-therapeutic-hypothermia-in-patients-with-hypoxic-ischemic-encephalopathy-a-case-series
#3
Sourabh Verma, Sean M Bailey, Pradeep V Mally, Elena V Wachtel
Therapeutic hypothermia (TH) is provided to newborns with moderate to severe hypoxic-ischemic encephalopathy (HIE) to improve survival and long-term neurodevelopmental outcomes. Although the benefits certainly outweigh the risks associated with therapeutic hypothermia, it is important to be mindful of potential rare side effects in the background of asphyxia-related injury to various body organs. One of those side effects includes subcutaneous fat necrosis (SCFN) that can occur in term newborns after perinatal hypoxia-ischemia or other stressing factors such as systemic hypothermia...
July 30, 2018: Curēus
https://www.readbyqxmd.com/read/30255158/oleoylethanolamide-and-palmitoylethanolamide-protect-cultured-cortical-neurons-against-hypoxia
#4
Manuel Portavella, Nieves Rodriguez-Espinosa, Pablo Galeano, Eduardo Blanco, Juan I Romero, Mariana I Holubiec, Fernando Rodriguez de Fonseca, Emilio Fernández-Espejo
Introduction: Perinatal hypoxic-ischemic (HI) encephalopathy is defined as a neurological syndrome where the newborn suffers from acute ischemia and hypoxia during the perinatal period. New therapies are needed. The acylethanolamides, oleoylethanolamide (OEA) and palmitoylethanolamide (PEA), possess neuroprotective properties, and they could be effective against perinatal HI. These lipid mediators act through peroxisome proliferator-activated receptors subtype α (PPARα), or transient receptor potential vanilloid (TRPV), such as TRPV subtype 1 and 4...
2018: Cannabis and Cannabinoid Research
https://www.readbyqxmd.com/read/30225791/evaluation-of-3k3a-activated-protein-c-to-treat-neonatal-hypoxic-ischemic-brain-injury-in-the-spiny-mouse
#5
Stacey J Ellery, Madeleine G Goss, Nadine Brew, Hayley Dickinson, Nadia Hale, Domenic A LaRosa, David W Walker, Flora Y Wong
Neonatal hypoxic ischemic encephalopathy (HIE) resulting from intrapartum asphyxia is a global problem that causes severe disabilities and up to 1 million deaths annually. A variant form of activated protein C, 3K3A-APC, has cytoprotective properties that attenuate brain injury in models of adult stroke. In this study, we compared the ability of 3K3A-APC and APC (wild-type (wt)) to attenuate neonatal brain injury, using the spiny mouse (Acomys cahirinus) model of intrapartum asphyxia. Pups were delivered at 38 days of gestation (term = 39 days), with an intrapartum hypoxic insult of 7...
September 17, 2018: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/30221657/huwe1-is-a-novel-mediator-of-protection-of-neural-progenitor-l2-3-cells-against-oxygen%C3%A2-glucose-deprivation-injury
#6
Xiaoqin Jiang, Jiyun Yang, Hedong Li, Yi Qu, Wenming Xu, Haiyan Yu, Yu Tong
Hypoxic‑ischemic encephalopathy is one of the most notable causes of brain injury in newborns. Cerebral ischemia and reperfusion lead to neuronal damage and neurological disability. In vitro and in vivo analyses have indicated that E3 ubiquitin protein ligase (Huwe1) is important for the process of neurogenesis during brain development; however, the exact biological function and the underlying mechanism of Huwe1 remain controversial. In the present study, neural progenitor cells, L2.3, of which we previously generated from rat E14...
September 3, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/30199363/-neonatal-hypoxic-ischemic-encephalopathy
#7
Oscar Papazian
Hypoxic-ischemic encephalopathy is a clearly recognizable clinical syndrome of in term newborns due to fetal asphyxia at birth. The incidence is 1.5 (95% CI 1.3 to 1.7) but it ranges from 1-8 and 25 out of every 1000 born in developed and developing countries, respectively. The most frequent causes are detachment of the placenta, prolapse of the umbilical cord and uterine rupture. The diagnostic criteria include partial or total incapacity for the newborn to cry and breath at birth even when stimulated, requiring assisted ventilation in the delivery room, Apgar < 5 in 5 and 10 minutes, acidemia (pH ≤ 7 and / or bases deficit ≥ 12 mmol/l), alterations of the conscience and the reflexes of Moro, grasping and suction, muscular stretching and muscle tone...
2018: Medicina
https://www.readbyqxmd.com/read/30149778/perinatal-hypoxic-ischemic-brain-injury-in-large-animal-models-relevance-to-human-neonatal-encephalopathy
#8
Raymond C Koehler, Zeng-Jin Yang, Jennifer K Lee, Lee J Martin
Perinatal hypoxia-ischemia resulting in death or lifelong disabilities remains a major clinical disorder. Neonatal models of hypoxia-ischemia in rodents have enhanced our understanding of cellular mechanisms of neural injury in developing brain, but have limitations in simulating the range, accuracy, and physiology of clinical hypoxia-ischemia and the relevant systems neuropathology that contribute to the human brain injury pattern. Large animal models of perinatal hypoxia-ischemia, such as partial or complete asphyxia at the time of delivery of fetal monkeys, umbilical cord occlusion and cerebral hypoperfusion at different stages of gestation in fetal sheep, and severe hypoxia and hypoperfusion in newborn piglets, have largely overcome these limitations...
August 28, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/30149475/transplacental-lidocaine-intoxication
#9
V Demeulemeester, H V Hauthem, F Cools, J Lefevere
Neonatal seizures are frequent in neonatal intensive care and the most common cause is perinatal asphyxia. Among other causes, toxin exposure is rare.We present a boy with an uneventful vaginal birth, who presented one hour after birth with apnea, hypotonia, mydriasis, tongue fasciculation, and tonic seizures. There was no hypoxic ischemic encephalopathy and brain imaging was normal. Toxicology screening revealed a toxic concentration of lidocaine in his blood. The intoxication was transplacental, as a cord blood sample confirmed the toxic level...
August 21, 2018: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/30142532/identification-of-a-panel-of-cytokines-in-neonates-with-hypoxic-ischemic-encephalopathy-treated-with-hypothermia
#10
Serafina Perrone, Michael D Weiss, Fabrizio Proietti, Candace Rossignol, Sara Cornacchione, Francesco Bazzini, Marco Calderisi, Giuseppe Buonocore, Mariangela Longini
PURPOSE: Inflammation is a crucial but understudied mechanism of neuronal injury after hypoxia-ischemia. The aim was to identify a panel of cytokines involved in brain injury in neonates with hypoxic ischemic encephalopathy (HIE). METHODS: Ten newborns with HIE undergoing to therapeutic hypothermia (TH, HIE Group) and 8 healthy newborns (CTRL Group) were enrolled. For the HIE group, 5 samples were collected: between 0 and 6 h of life (time 1), 12 h (time 2), 24 h (time 3), 48 h (time 4) and 96 h of life (time 5)...
August 21, 2018: Cytokine
https://www.readbyqxmd.com/read/30130752/predictive-value-of-thompson-score-for-long-term-neurological-and-cognitive-outcome-in-term-newborns-with-perinatal-asphyxia-and-hypoxic-ischemic-encephalopathy-undergoing-controlled-hypothermia-treatment
#11
Marc R Mendler, Ines Mendler, Mohammad A Hassan, Benjamin Mayer, Harald Bode, Helmut D Hummler
BACKGROUND: The so-called Thompson-score (TS) for newborns with hypoxic-ischemic encephalopathy (HIE) was developed before the introduction of controlled hypothermia as clinical routine. Information on the predictive value of TS in newborns undergoing therapeutic hypothermia to estimate long-term outcome is limited. OBJECTIVES: To determine the predictive value of TS to estimate long-term cognitive and neurological outcome in newborns with perinatal asphyxia treated with controlled hypothermia...
August 21, 2018: Neonatology
https://www.readbyqxmd.com/read/30097625/dose-dependent-reversal-of-kcc2-hypofunction-and-phenobarbital-resistant-neonatal-seizures-by-ana12
#12
B M Carter, B J Sullivan, J R Landers, S D Kadam
Neonatal seizures have an incidence of 3.5 per 1000 newborns; while hypoxic-ischemic encephalopathy (HIE) accounts for 50-60% of cases, half are resistant to 1st-line anti-seizure drugs such as phenobarbital (PB). Tyrosine receptor kinase B (TrkB) activation following ischemic injury is known to increase neuronal excitability by downregulation of K-Cl co-transporter 2 (KCC2); a neuronal chloride (Cl- ) co-transporter. In this study, three graded doses of ANA12, a small-molecule selective TrkB antagonist, were tested in CD1 mice at P7 and P10 following induction of neonatal ischemia by a unilateral carotid ligation...
August 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30086156/dha-and-therapeutic-hypothermia-in-a-short-term-follow-up-piglet-model-of-hypoxia-ischemia-effects-on-h-mrs-biomarkers
#13
Marianne Ullestad Huun, Håvard Garberg, Else Marit Løberg, Javier Escobar, Jose Martinez-Orgado, Ola Didrik Saugstad, Rønnaug Solberg
BACKGROUND: Therapeutic hypothermia has become the standard of care for newborns with hypoxic-ischemic encephalopathy in high and middle income countries. Docosahexaenoic acid (DHA) has neuroprotective properties of reducing excitotoxicity, neuroinflammation and apoptosis in rodent models. We aim to study whether post hypoxic administration of i.v. DHA will reduce H+MRS biomarkers and gene expression of inflammation and apoptosis both with and without hypothermia in a large animal model...
2018: PloS One
https://www.readbyqxmd.com/read/30086107/neurometabolic-disorders-of-the-newborn
#14
Kshitij Mankad, Giacomo Talenti, Ai Peng Tan, Fabrício Guimarães Gonçalves, Carlos Robles, Elaine Y L Kan, Ata Siddiqui
There is an extensive and diverse set of medical conditions affecting the neonatal brain within the spectrum of neurometabolic disorders. As such, their clinical presentations can be rather nonspecific, and can often mimic acquired entities such as hypoxic-ischemic encephalopathy and sepsis. Similarly, the radiological findings in these entities can also be frequently nonspecific, but a more detailed analysis of imaging findings (especially magnetic resonance imaging) alongside the relevant clinical details can be a rewarding experience, thus enabling a timely and targeted diagnosis...
August 2018: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/30060742/effect-of-hypothermia-on-interleukin-1-receptor-antagonist-pharmacodynamics-in-inflammatory-sensitized-hypoxic-ischemic-encephalopathy-of-term-newborns
#15
Mathilde Chevin, Clémence Guiraut, Guillaume Sébire
BACKGROUND: Hypothermia is increasingly tested in several neurological conditions, such as neonatal encephalopathy, stroke, traumatic brain injury, subarachnoid hemorrhage, spinal cord injury, and neurological outcomes of cardiac arrest. Current studies aim to increase benefits of hypothermia with new add-on therapies including immunomodulatory agents. Hypothermia has been shown to affect the metabolism of commonly used drugs, including those acting on neuroimmune pathways. OBJECTIVE: This study focuses on the effect of hypothermia on interleukin-1 receptor antagonist pharmacodynamics in a model of neonatal encephalopathy...
July 30, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/30053817/the-first-case-of-neonatal-priapism-during-hypothermia-for-hypoxic-ischemic-encephalopathy-and-a-literature-review
#16
REVIEW
Claudia Fanni, Maria Antonietta Marcialis, Maria Cristina Pintus, Cristina Loddo, Vassilios Fanos
Neonatal priapism is a rare condition with only 26 described cases in literature since 1879. It is defined as a persistent penile erection occurring in the first 28 days of life, lasting at least 4 h that usually happens in the first days (from 2 to 12 days). It is a very different condition compared to the adult one because in newborns it is a relatively benign phenomenon. As a result of this paucity of described cases, classification and management are not well known by most of neonatologists and currently there are no established guidelines for its management...
July 27, 2018: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/30037602/clinical-features-of-a-fatal-shoulder-dystocia-the-hypovolemic-shock-hypothesis
#17
E Cesari, S Ghirardello, G Brembilla, A Svelato, A Ragusa
Shoulder dystocia is a rare but severe obstetric complication associated with an increased risk of brachial plexus palsies, fractures of the clavicle and humerus, hypoxic-ischemic encephalopathy and, rarely, neonatal death. Here we describe a fatal case of shoulder dystocia in a term newborn, although labor was uneventful, fetal heart rate tracing was normal until the delivery of the head and the head-to-body delivery interval (HBDI) occurred within 5 min. Full resuscitation was performed for 35 min without success...
September 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/30025402/biomarker-discovery-by-mass-spectrometry-in-cerebrospinal-fluid-and-plasma-after-global-hypoxia-ischemia-in-newborn-piglets
#18
Kasper Jacobsen Kyng, Anders Valdemar Edhager, Tine Brink Henriksen, Christer Zøylner Swan, Niels Gregersen, Johan Palmfeldt
BACKGROUND: Biomarkers may qualify diagnosis, treatment allocation, and prognostication in neonatal encephalopathy. Biomarker development is challenged by competing etiologies, inter-individual genetic variability, and a lack of specific neonatal markers. To address these challenges, we used a standardized neonatal hypoxic-ischemic (HI) encephalopathy model with pre- and post-HI sampling of cerebrospinal fluid (CSF) and plasma. OBJECTIVES: The study aimed to identify novel candidate protein biomarkers of HI encephalopathy in a newborn piglet model in CSF and plasma...
July 19, 2018: Neonatology
https://www.readbyqxmd.com/read/30022316/passive-therapeutic-hypothermia-during-ambulance-and-helicopter-secondary-neonatal-transport-in-neonates-with-hypoxic-brain-injury-a-10-year-retrospective-survey
#19
Manca Leben, Manca Nolimal, Ivan Vidmar, Štefan Grosek
BACKGROUND: Therapeutic hypothermia is a method of treatment in newborns with hypoxic ischemic encephalopathy. Hypothermia should be initiated no later than 6 h after birth. The purpose of this study was to evaluate the quality of the passive therapeutic cooling during neonatal transport. PURPOSE: The study aims to evaluate the efficiency of our transport in maintenance of target body temperature during transport. METHODS: We conducted a 10-year retrospective study in neonates, transported by helicopter or ambulance, who received therapeutic passive-induced hypothermia during transport to the Department of Pediatric Surgery and Intensive Therapy at the University Medical Centre Ljubljana between September 1, 2006, and December 31, 2016...
July 18, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29968450/brain-cooling-reduces-the-risk-of-post-neonatal-epilepsy-in-newborns-affected-by-moderate-to-severe-hypoxic-ischemic-encephalopathy
#20
Licia Lugli, Eleonora Balestri, Alberto Berardi, Isotta Guidotti, Francesca Cavalleri, Alessandra Todeschini, Marisa Pugliese, Elisa Muttini Della Casa, Laura Lucaccioni, Fabrizio Ferrari
BACKGROUND: Neonatal hypoxic-ischemic encephalopathy is still a significant cause of neonatal death and neurodevelopmental disabilities, such as cerebral palsy, mental delay, and epilepsy. After the introduction of therapeutic hypothermia, the prognosis of hypoxic-ischemic encephalopathy has improved, with reduction of death and disabilities. However, few studies evaluated whether hypothermia affects rate and severity of post-neonatal epilepsy. We evaluated rates, characteristics and prognostic markers of post-neonatal epilepsy in infants with moderate to severe hypoxic-ischemic encephalopathy treated or not with therapeutic hypothermia...
July 2, 2018: Minerva Pediatrica
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