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hypoxic ischemic encephalopathy hypothermia

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https://www.readbyqxmd.com/read/30309737/targeted-temperature-management-in-pediatric-neurocritical-care
#1
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
#2
Jeffrey J Cies, Thomas Habib, Vidhy Bains, Megan Young, Ogechukwu R Menkiti
OBJECTIVES: 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 5000-patient neonatal population with HIE receiving CH using PMetrics, a non-parametric, 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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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...
September 19, 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
#10
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
#11
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
#12
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
#13
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
#14
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/30197201/early-glycemic-profile-is-associated-with-brain-injury-patterns-on-magnetic-resonance-imaging-in-hypoxic-ischemic-encephalopathy
#15
Sudeepta K Basu, Katherine Ottolini, Vedavalli Govindan, Suleiman Mashat, Gilbert Vezina, Yunfei Wang, Michaelande Ridore, Taeun Chang, Jeffrey R Kaiser, An N Massaro
OBJECTIVE: To investigate whether the early glycemic profile in infants with hypoxic ischemic encephalopathy is associated with distinct patterns of brain injury on magnetic resonance imaging (MRI). STUDY DESIGN: We performed a secondary analysis of 178 prospectively enrolled infants who received therapeutic hypothermia for hypoxic ischemic encephalopathy. Glycemic profiles were identified by glucose concentrations within 24 hours after birth: normoglycemia (all glucose concentrations of >47 to ≤150 mg/dL; n = 62); hypoglycemia (≥1 concentration ≤47 mg/dL; n = 17); hyperglycemia (≥1 concentration >150 mg/dL; n = 76); and labile glucose (both hypoglycemia and hyperglycemia; n = 23)...
September 6, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/30186671/dexmedetomidine-for-sedation-of-neonates-with-hie-undergoing-therapeutic-hypothermia-a-single-center-experience
#16
Keliana O'Mara, Michael D Weiss
Hypoxic-ischemic encephalopathy (HIE) is a significant cause of morbidity and mortality in neonates. Therapeutic hypothermia reduces the risk of death or disability. Providing optimal sedation while neonates are undergoing therapeutic hypothermia is likely beneficial but may present therapeutic challenges. There are limited data describing the use of dexmedetomidine for sedation in patients undergoing therapeutic hypothermia. The objective of this study is to evaluate the efficacy and short-term safety of dexmedetomidine infusion for sedation in term neonates undergoing therapeutic hypothermia for HIE...
July 2018: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/30153673/melatonin-acts-in-synergy-with-hypothermia-to-reduce-oxygen-glucose-deprivation-induced-cell-death-in-rat-hippocampus-organotypic-slice-cultures
#17
Silvia Carloni, Fabrizio Facchinetti, Nicola Pelizzi, Giuseppe Buonocore, Walter Balduini
BACKGROUND: Hypoxic-ischemic encephalopathy is a major cause of neonatal morbidity. Therapeutic hypothermia, while beneficial, still leaves many treated infants with lifelong disabilities. Thus, adjunctive therapies, such as melatonin, are needed to provide additional neuroprotection. OBJECTIVES: The aim of this study was to determine a range of melatonin concentrations that could result in neuroprotective synergy with hypothermia. METHODS: Hypoxia-ischemia was simulated by transient oxygen-glucose deprivation (OGD) in organotypic hippocampal slice cultures derived from neonatal rats...
August 28, 2018: Neonatology
https://www.readbyqxmd.com/read/30149778/perinatal-hypoxic-ischemic-brain-injury-in-large-animal-models-relevance-to-human-neonatal-encephalopathy
#18
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/30144709/outcomes-of-preterm-infants-treated-with-hypothermia-for-hypoxic-ischemic-encephalopathy
#19
Tamara I Herrera, Laura Edwards, William F Malcolm, P Brian Smith, Kimberley A Fisher, Carolyn Pizoli, Kathryn E Gustafson, Ricki F Goldstein, C Michael Cotten, Ronald N Goldberg, Margarita Bidegain
BACKGROUND: Therapeutic hypothermia reduces the risk of death, or moderate to severe neurodevelopmental impairment (NDI) in term infants with hypoxic-ischemic encephalopathy (HIE). Reports of its safety and efficacy in preterm infants are scarce. OBJECTIVE: Report short and long-term outcomes of preterm infants with HIE who received therapeutic hypothermia. METHODS: A retrospective cohort analysis of all preterm infants <36 weeks' gestation with HIE who received whole body hypothermia in a single center from January 2007 to April 2015...
October 2018: Early Human Development
https://www.readbyqxmd.com/read/30142532/identification-of-a-panel-of-cytokines-in-neonates-with-hypoxic-ischemic-encephalopathy-treated-with-hypothermia
#20
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
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