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hypoxic ischemic encephalopathy hypothermia

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https://www.readbyqxmd.com/read/30506752/late-initiation-of-therapeutic-hypothermia-not-the-new-standard-of-care
#1
Stephanie L Bourque, Robert M Dietz
We appreciate the comprehensive and thoughtful review of the late hypothermia study from Dr. Walløe and colleagues, recently published in Acta Paediatrica (1). This group has raised a number of excellent points to consider while interpreting the results of this randomized control trial which sought to evaluate the effectiveness of late therapeutic hypothermia (TH) initiated between 6 and 24 hours of age for infants diagnosed with hypoxic ischemic encephalopathy (HIE) This article is protected by copyright...
December 2, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/30468796/neuroprotection-by-cannabidiol-and-hypothermia-in-a-piglet-model-of-newborn-hypoxic-ischemic-brain-damage
#2
Lorena Barata, Luis Arruza, Maria-José Rodríguez, Esther Aleo, Eva Vierge, Enrique Criado, Elena Sobrino, Carlos Vargas, María Ceprián, Ana Gutiérrez-Rodríguez, William Hind, José Martínez-Orgado
OBJECTIVE: Hypothermia, the gold standard after a hypoxic-ischemic insult, is not beneficial in all treated newborns. Cannabidiol is neuroprotective in animal models of newborn hypoxic-ischemic encephalopathy. This study compared the relative efficacies of cannabidiol and hypothermia in newborn hypoxic-ischemic piglets and assessed whether addition of cannabidiol augments hypothermic neuroprotection. METHODS: One day-old HI (carotid clamp and FiO2 10% for 20 min) piglets were randomized to vehicle or cannabidiol 1 mg/kg i...
November 20, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/30447810/neonatal-encephalopathy-current-management-and-future-trends
#3
REVIEW
Elizabeth A Schump
It is well-documented in the literature that infants who suffer from hypoxic ischemic encephalopathy are at high risk for neurologic sequelae or even death. With the addition of therapeutic hypothermia into the treatment regimen for neonatal hypoxic ischemic encephalopathy, newborns afflicted with hypoxic ischemic encephalopathy were given the opportunity for a better outcome. Questions linger as to the most optimal treatment strategy of therapeutic hypothermia for these newborns. The goal of this article is to discuss current management strategies, as well as future trends, for infants with hypoxic ischemic encephalopathy...
December 2018: Critical Care Nursing Clinics of North America
https://www.readbyqxmd.com/read/30417430/major-concerns-about-late-hypothermia-study
#4
Lars Walløe, Nils Lid Hjort, Marianne Thoresen
No abstract text is available yet for this article.
November 11, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/30402807/cerebral-oxygen-metabolism-during-and-after-therapeutic-hypothermia-in-neonatal-hypoxic-ischemic-encephalopathy-a-feasibility-study-using-magnetic-resonance-imaging
#5
Anil N Shetty, Ashley M Lucke, Peiying Liu, Magdalena Sanz Cortes, Joseph L Hagan, Zili D Chu, Jill V Hunter, Hanzhang Lu, Wesley Lee, Jeffrey R Kaiser
BACKGROUND: Therapeutic hypothermia is the standard-of-care treatment for infants diagnosed with moderate-to-severe hypoxic-ischemic encephalopathy (HIE). MRI for assessing brain injury is usually performed after hypothermia because of logistical challenges in bringing acutely sick infants receiving hypothermia from the neonatal intensive care unit (NICU) to the MRI suite. Perhaps examining and comparing early cerebral oxygen metabolism disturbances to those after rewarming will lead to a better understanding of the mechanisms of brain injury in HIE and the effects of therapeutic hypothermia...
November 6, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/30371275/proteasome-biology-is-compromised-in-white-matter-after-asphyxic-cardiac-arrest-in-neonatal-piglets
#6
Polan T Santos, Caitlin E O'Brien, May W Chen, C Danielle Hopkins, Shawn Adams, Ewa Kulikowicz, Rashmi Singh, Raymond C Koehler, Lee J Martin, Jennifer K Lee
Background Neurological deficits in hypoxic-ischemic encephalopathy, even with therapeutic hypothermia, are partially attributed to white matter injury. We theorized that proteasome insufficiency contributes to white matter injury. Methods and Results Neonatal piglets received hypoxia-ischemia ( HI ) or sham procedure with normothermia, hypothermia, or hypothermia+rewarming. Some received a proteasome activator drug (oleuropein) or white matter-targeted, virus-mediated proteasome knockdown. We measured myelin oligodendrocyte glycoprotein, proteasome subunit 20S (P20S), proteasome activity, and carbonylated and ubiquitinated protein levels in white matter and cerebral cortex...
October 16, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/30309737/targeted-temperature-management-in-pediatric-neurocritical-care
#7
REVIEW
Giulia M Benedetti Md, Faye S Silverstein Md
Targeted temperature management encompasses a range of clinical interventions to regulate systemic temperature, and includes both induction of varying degrees of hypothermia and fever prevention ("targeted normothermia"). Targeted temperature management plays a key role in the contemporary management of critically ill neonates and children with acute brain injury. Yet, many unanswered questions remain regarding optimal temperature management in pediatric neurocritical care. The introduction highlights experimental studies that have evaluated the neuroprotective efficacy of therapeutic hypothermia and explored possible mechanisms of action in several brain injury models...
July 21, 2018: Pediatric Neurology
https://www.readbyqxmd.com/read/30300445/population-pharmacokinetics-of-gentamicin-in-neonates-with-hypoxemic-ischemic-encephalopathy-receiving-controlled-hypothermia
#8
Jeffrey J Cies, Thomas Habib, Vidhy Bains, Megan Young, Ogechukwu R Menkiti
OBJECTIVE: Identify population pharmacokinetics and pharmacodynamic target attainment of gentamicin in neonates with hypoxic-ischemic encephalopathy (HIE) undergoing controlled hypothermia (CH). DESIGN: Prospective open-label pharmacokinetic study. Gentamicin concentrations were modeled and dosing regimens simulated for a 5000-patient neonatal population with HIE receiving CH using PMetrics, a nonparametric, pharmacometric modeling, and simulation package for R...
October 9, 2018: Pharmacotherapy
https://www.readbyqxmd.com/read/30296665/a-comparison-of-levetiracetam-and-phenobarbital-for-the-treatment-of-neonatal-seizures-associated-with-hypoxic-ischemic-encephalopathy
#9
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...
November 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/30282782/variation-in-use-by-nicu-types-in-the-united-states
#10
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...
November 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
#11
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/30279083/electroencephalography-and-brain-magnetic-resonance-imaging-in-asphyxia-comparing-cooled-and-non-cooled-infants
#12
Leen Att De Wispelaere, Sabine Ouwehand, Marielle Olsthoorn, Paul Govaert, Liesbeth S Smit, Rogier Cj de Jonge, Maarten H Lequin, Irwin K Reiss, Jeroen Dudink
OBJECTIVE: The aim was to establish any differences in the predictive value of EEG and MRI for outcome in infants treated and not-treated with therapeutic hypothermia (HT) for perinatal asphyxia. We hypothesize that they are equally predictive and that combining both has the highest predictive value. STUDY DESIGN: We retrospectively compared data of infants with hypoxic-ischemic encephalopathy (HIE) who received HT (n = 45) between September 2009 and December 2013 with those of infants with HIE born between January 2004 and August 2009, before HT was available (NT, n = 37)...
September 12, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/30270845/late-failure-of-cerebral-autoregulation-in-hypoxic-ischemic-encephalopathy-is-associated-with-brain-injury-a-pilot-study
#13
Zachary A Vesoulis, Steve M Liao, Amit M Mathur
Post-resuscitation reperfusion following hypoxic-ischemia (HIE) is associated with secondary brain injury in neonates. 
 
 Objective: To quantify the association between perfusion exceeding autoregulatory limits and brain injury.
 
 Methods: Continuous mean arterial blood pressure (MABP) and cerebral near-infrared spectroscopy (NIRS) data were prospectively collected from infants with HIE. Cerebral oximetry index (COx) was calculated as a moving correlation coefficient between MABP and NIRS...
October 1, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/30233483/proton-magnetic-resonance-spectroscopy-biomarkers-in-neonates-with-hypoxic-ischemic-encephalopathy-a-systematic-review-and-meta-analysis
#14
Rong Zou, Tao Xiong, Li Zhang, Shiping Li, Fengyan Zhao, Yu Tong, Yi Qu, Dezhi Mu
Background: Hypoxic-ischemic encephalopathy (HIE) is a major contributor to child mortality and morbidity. Reliable prognostication for HIE is of key importance. Proton magnetic resonance spectroscopy (1 H-MRS) is a quantitative, non-invasive method that has been demonstrated to be a suitable complementary tool for prediction. The aim of this study was to investigate the prognostic capability of 1 H-MRS in the era of therapeutic hypothermia (TH). Methods: Databases, namely MEDLINE, Embase, Web of Science, and the Cochrane library (Cochrane Center Register of Controlled Trials), were searched for studies published before July 17, 2017...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/30232591/changes-in-bilirubin-in-infants-with-hypoxic-ischemic-encephalopathy
#15
Carlo Dani, Chiara Poggi, Claudia Fancelli, Simone Pratesi
Antioxidant properties of bilirubin have been reported in many studies. We hypothesized that bilirubin might be involved in neuroprotection mechanisms against oxidative stress in infants with hypoxic-ischemic encephalopathy (HIE) and that total serum bilirubin (TSB) might increase in these patients. We retrospectively studied infants with gestational age ≥ 35 weeks and birth weight ≥ 1800 g who were admitted to the neonatal intensive care unit (NICU) with a diagnosis of moderate-to-severe HIE and received or did not receive therapeutic hypothermia...
December 2018: European Journal of Pediatrics
https://www.readbyqxmd.com/read/30231649/serum-calcium-derangements-in-neonates-with-moderate-to-severe-hypoxic-ischemic-encephalopathy-and-the-impact-of-therapeutic-hypothermia-a-cohort-study
#16
Sakeer Vayalthrikkovil, Rani Bashir, Maria Espinoza, Leigh Irvine, James N Scott, Khorshid Mohammad
BACKGROUND: Perinatal hypoxia is a recognized cause of hypocalcemia in neonates in the first 3 days of life. Therapeutic hypothermia (TH) promotes neuroprotection by decreasing calcium influx into the cells during the reperfusion phase thereby increase serum calcium levels. This study examines the trends of serum calcium levels in neonates with hypoxic ischemic encephalopathy (HIE) and the effect of TH. MATERIAL AND METHODS: A retrospective cohort study of neonates with moderate to severe HIE admitted to level III neonatal intensive care units (NICU's) in Calgary between September 2011 and October 2015...
September 19, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/30227341/high-electroencephalographic-seizure-exposure-is-associated-with-unfavorable-outcomes-in-neonates-with-hypoxic-ischemic-encephalopathy
#17
Mark P Fitzgerald, Shavonne L Massey, France W Fung, Sudha Kilaru Kessler, Nicholas S Abend
PURPOSE: Electroencephalographic seizures (ES) are common among neonates with hypoxic-ischemic encephalopathy (HIE), and they represent a treatable complication that might improve neurodevelopmental outcomes. We aimed to establish whether higher ES exposure was predictive of unfavorable outcomes while adjusting for other important clinical and electroencephalographic parameters. METHODS: We performed a single-center, retrospective study of consecutive neonates with HIE managed with therapeutic hypothermia from June 2010 through December 2016...
October 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/30219051/prognostic-value-of-early-conventional-proton-magnetic-resonance-spectroscopy-in-cooled-asphyxiated-infants
#18
Hajnalka Barta, Agnes Jermendy, Marton Kolossvary, Lajos R Kozak, Andrea Lakatos, Unoke Meder, Miklos Szabo, Gabor Rudas
BACKGROUND: Neonatal hypoxic-ischemic encephalopathy (HIE) commonly leads to neurodevelopmental impairment, raising the need for prognostic tools which may guide future therapies in time. Prognostic value of proton MR spectroscopy (H-MRS) between 1 and 46 days of age has been extensively studied; however, the reproducibility and generalizability of these methods are controversial in a general clinical setting. Therefore, we investigated the prognostic performance of conventional H-MRS during first 96 postnatal hours in hypothermia-treated asphyxiated neonates...
September 15, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/30215057/ischemic-conditioning-and-neonatal-hypoxic-ischemic-encephalopathy-a-literature-review
#19
Dusit Adstamongkonkul, David C Hess
Hypoxic Ischemic Encephalopathy (HIE) is the result of severe anoxic brain injury during the neonatal period and causes life-long morbidity and premature mortality. Currently, therapeutic hypothermia immediately after birth is the standard of care for clinically relevant HIE. However, therapeutic hypothermia alone does not provide complete neuroprotection and there is an urgent need for adjunctive therapies. Ischemic conditioning is an adaptive process of endogenous protection in which small doses of sub-lethal ischemia can provide a protection against a lethal ischemic event...
December 2017: Conditioning medicine
https://www.readbyqxmd.com/read/30199363/-neonatal-hypoxic-ischemic-encephalopathy
#20
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
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