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hypoxic ischemic encephalopathy hypothermia

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https://www.readbyqxmd.com/read/30092709/limited-benefit-of-slow-rewarming-after-cerebral-hypothermia-for-global-cerebral-ischemia-in-near-term-fetal-sheep
#1
Joanne O Davidson, Guido Wassink, Vittoria Draghi, Simerdeep K Dhillon, Laura Bennet, Alistair J Gunn
The optimal rate of rewarming after therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy is unknown, although it is widely suggested that slow rewarming is beneficial. Some preclinical studies suggest better outcomes with slower rewarming, but did not control for the duration of hypothermia. In this study, near-term fetal sheep (0.85 gestation) received 30 min cerebral ischemia followed by normothermia, 48 h hypothermia with rapid rewarming over 1 h, 48-h hypothermia with slow rewarming over 24 h, or 72-h hypothermia with rapid rewarming...
August 10, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/30087289/perinatal-hypoxic-ischemic-encephalopathy-and-neuroprotective-peptide-therapies-a-case-for-cationic-arginine-rich-peptides-carps
#2
REVIEW
Adam B Edwards, Ryan S Anderton, Neville W Knuckey, Bruno P Meloni
Perinatal hypoxic-ischemic encephalopathy (HIE) is the leading cause of mortality and morbidity in neonates, with survivors suffering significant neurological sequelae including cerebral palsy, epilepsy, intellectual disability and autism spectrum disorders. While hypothermia is used clinically to reduce neurological injury following HIE, it is only used for term infants (>36 weeks gestation) in tertiary hospitals and improves outcomes in only 30% of patients. For these reasons, a more effective and easily administrable pharmacological therapeutic agent, that can be used in combination with hypothermia or alone when hypothermia cannot be applied, is urgently needed to treat pre-term (≤36 weeks gestation) and term infants suffering HIE...
August 7, 2018: Brain Sciences
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
#3
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/30060742/effect-of-hypothermia-on-interleukin-1-receptor-antagonist-pharmacodynamics-in-inflammatory-sensitized-hypoxic-ischemic-encephalopathy-of-term-newborns
#4
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
#5
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/30050428/the-combination-of-human-urinary-kallidinogenase-and-mild-hypothermia-protects-adult-rats-against-hypoxic-ischemic-encephalopathy-induced-injury-by-promoting-angiogenesis-and-regeneration
#6
Xiaoya Gao, Haiting Xie, Shuzhen Zhu, Bin Yu, Ying Xian, Qian Ouyang, Yabin Ji, Xiaohua Yang, Chunyan Wen, Penghua Wang, Yufeng Tong, Qing Wang
Objectives : Human Urinary Kallidinogenase (HUK) is a tissue kallikrein that plays neuroprotective role in ischemic conditions via different mechanisms. Mild hypothermia (MH) is another robust neuroprotectant that reduces mortality but does not profoundly ameliorate the neurological outcome in hypoxic-ischemic encephalopathy (HIE) patients. However, whether the combination of HUK and MH can be used as a promising neuroprotective treatment in HIE is unknown. Methods : One-hundred and forty-four adult Wistar rats were randomly divided into five groups: Sham, HIE, HUK, MH and a combination of HUK and MH treatment...
2018: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/30046182/survey-of-ecmo-practices-for-infants-with-hypoxic-ischemic-encephalopathy
#7
Mark F Weems, Kirtikumar Upadhyay, Hitesh S Sandhu
OBJECTIVE: Historically, some physicians are reluctant to offer extracorporeal membrane oxygenation (ECMO) to infants with neonatal encephalopathy. This study describes how ECMO practices have changed since the development of therapeutic hypothermia (TH) for neonatal encephalopathy. STUDY DESIGN: A 22-question electronic survey was sent to neonatal medical directors and ECMO directors in the USA and Canada. Participants were queried on TH and ECMO practices and if they would offer ECMO given certain clinical factors; confidential responses were compared with a similar survey conducted in 2008...
July 25, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/30029531/current-and-emerging-therapies-in-the-management-of-hypoxic-ischemic-encephalopathy-in-neonates
#8
REVIEW
Jayasree Nair, Vasantha H S Kumar
Neonatal hypoxic ischemic encephalopathy (HIE) presents a significant clinical burden with its high mortality and morbidity rates globally. Therapeutic hypothermia (TH) is now standard of care for infants with moderate to severe HIE, but has not definitively changed outcomes in severe HIE. In this review, we discuss newer promising markers that may help the clinician identify severity of HIE. Therapies that are beneficial and agents that hold promise for neuroprotection are described, both for use either alone or as adjuncts to TH...
July 19, 2018: Children
https://www.readbyqxmd.com/read/30028311/the-impact-of-hypoxic-ischemic-brain-injury-on-stem-cell-mobilization-migration-adhesion-and-proliferation
#9
REVIEW
Stephanie M Parry, Eric S Peeples
Neonatal hypoxic-ischemic encephalopathy continues to be a significant cause of death or neurodevelopmental delays despite standard use of therapeutic hypothermia. The use of stem cell transplantation has recently emerged as a promising supplemental therapy to further improve the outcomes of infants with hypoxic-ischemic encephalopathy. After the injury, the brain releases several chemical mediators, many of which communicate directly with stem cells to encourage mobilization, migration, cell adhesion and differentiation...
July 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/30025408/perinatal-anemia-is-associated-with-neonatal-and-neurodevelopmental-outcomes-in-infants-with-moderate-to-severe-perinatal-asphyxia
#10
Willemien S Kalteren, Hendrik J Ter Horst, Anne E den Heijer, Leanne de Vetten, Elisabeth M W Kooi, Arend F Bos
BACKGROUND: Perinatal anemia may cause perinatal asphyxia. Its pathophysiology and neurodevelopmental effects are theoretically different from other causes of perinatal asphyxia. OBJECTIVE: The study aimed to determine whether perinatal anemia results in different short-term and long-term outcomes than other causes of perinatal asphyxia treated with therapeutic hypothermia. METHODS: We retrospectively included infants with moderate to severe hypoxic-ischemic encephalopathy, born between May 2009 and October 2015...
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
#11
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/29978451/obstetric-emergencies-as-antecedents-to-neonatal-hypoxic-ischemic-encephalopathy-does-parity-matter
#12
Lena Liljestrom, Anna-Karin Wikstrom, Maria Jonsson
INTRODUCTION: Our aim was to investigate the risk of moderate to severe hypoxic ischemic encephalopathy (HIE) by obstetric emergencies, with focus on the distribution of obstetric emergencies by parity, taking the history of a previous cesarean into account. MATERIAL AND METHODS: Population-based cohort study of 692 428 live births at ≥ 36 weeks of gestation in Sweden, 2009-2015. Data were retrieved by linking the Swedish Medical Birth Register with the Swedish Neonatal Quality Register...
July 6, 2018: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29972117/-current-status-of-the-application-of-1-h-magnetic-resonance-spectroscopy-in-neonates-with-hypoxic-ischemic-encephalopathy
#13
Rong Zou, Jun Tang, Shan Bao, Tian Wu, Jing-Lan Huang, Yi Qu, De-Zhi Mu
OBJECTIVE: To investigate the current status of the application of 1 H-magnetic resonance spectroscopy (1 H-MRS) in neonates with hypoxic-ischemic encephalopathy (HIE), and to describe the trend of research in the field. METHODS: PubMed, EMBASE, and Web of Science were searched for English articles published up to January 10, 2018, with the combination of key words and MeSH terms. The articles were screened according to inclusion and exclusion criteria. Excel 2016, Bicomb 2...
June 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
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
#14
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
https://www.readbyqxmd.com/read/29961523/facial-weakness-and-ophthalmoplegia-in-a-4-day-old-infant
#15
Ioanna Kouri, Katherine Mathews, Charuta Joshi
We present a neonate with neurologic deficits recognized at 4 days of age. A male infant was born at term via emergency cesarian section due to failure to progress and fetal decelerations. He underwent therapeutic hypothermia for hypoxic ischemic encephalopathy. Upon completion of rewarming, he was noted to have left facial palsy, abduction deficit on the left eye past the midline, and nystagmus involving the right eye. Brain magnetic resonance imaging showed a pontine stroke, and computed tomography angiogram revealed basilar artery thrombosis...
July 2018: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/29895836/predictive-value-of-early-eeg-for-seizures-in-neonates-with-hypoxic-ischemic-encephalopathy-undergoing-therapeutic-hypothermia
#16
Marie-Coralie Cornet, Archana Pasupuleti, Annie Fang, Fernando Gonzalez, Thomas Shimotake, Donna Marie Ferriero, Hannah Cranley Glass, Maria Roberta Cilio
OBJECTIVES: To assess the prognostic significance of an early normal/mildly abnormal conventional EEG (cEEG) on seizure risk in neonates undergoing therapeutic hypothermia. METHODS: We reviewed the video-EEG recordings from a large cohort of neonates treated with therapeutic hypothermia for hypoxic-ischemic encephalopathy from 2008 to 2017 in a single tertiary center. Continuous video-EEG was started as soon as possible (median 8.2 h) and continued throughout hypothermia and rewarming...
May 3, 2018: Pediatric Research
https://www.readbyqxmd.com/read/29887039/xenon-combined-with-hypothermia-in-perinatal-hypoxic-ischemic-encephalopathy-a-noble-gas-a-noble-mission
#17
REVIEW
Ashraf R Amer, Dorothy E Oorschot
Perinatal hypoxia-ischemia is a major cause of neonatal morbidity. It generates primary neuronal damage of the neonatal brain and later secondary damage when reperfusion of the ischemic brain tissue causes a surge of oxygen free radicals and inflammation. This post-hypoxic-ischemic brain damage is a leading cause of motor and intellectual disabilities in survivors. Research worldwide has focused on mitigating this injury. Mild or moderate hypothermia is the standard treatment in many centers. However, its benefit is modest and the search for combinatorial effective neuroprotectants continues...
July 2018: Pediatric Neurology
https://www.readbyqxmd.com/read/29886041/outcomes-after-acute-symptomatic-seizures-in-children-admitted-to-a-neonatal-neurocritical-care-service
#18
Hannah C Glass, Adam L Numis, Dawn Gano, Varun Bali, Elizabeth E Rogers
BACKGROUND: Neonatal seizures due to acute brain injury are associated with high rates of death, disability, and epilepsy. Our objective was to examine incidence of and risk factors for epilepsy among survivors of acute symptomatic neonatal seizures who were cared for by a neonatal neurocritical care service. METHODS: Neonates with acute symptomatic seizures who were admitted to UCSF Benioff Children's Hospital Neuro-Intensive Care Nursery from July 2008 to June 2014 were considered for inclusion...
July 2018: Pediatric Neurology
https://www.readbyqxmd.com/read/29883008/transorbital-sonography-for-early-prognostication-of-hypoxic-ischemic-encephalopathy-after-cardiac-arrest
#19
Michael Ertl, Sarah Weber, Gertrud Hammel, Christoph Schroeder, Christos Krogias
BACKGROUND AND PURPOSE: Early prognostication of the outcome in resuscitated post cardiac arrest (CA) patients remains challenging especially if treated with therapeutic hypothermia. Brain edema caused by hypoxic-ischemic encephalopathy (HIE) can indirectly be estimated by transorbital sonography (TOS) taking in account the optic nerve sheath diameter (ONSD). The prognostic value of this easy, safe, and reproducible technique was investigated in this study. METHODS: A total of 49 patients, initially unconscious (Glasgow Coma Scale ≤6) after successful resuscitation, were enrolled into this prospective observational study...
June 8, 2018: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29875342/anti-cytokine-therapy-to-attenuate-ischemic-reperfusion-associated-brain-injury-in-the-perinatal-period
#20
REVIEW
Clémence Disdier, Xiaodi Chen, Jeong-Eun Kim, Steven W Threlkeld, Barbara S Stonestreet
Perinatal brain injury is a major cause of morbidity and long-standing disability in newborns. Hypothermia is the only therapy approved to attenuate brain injury in the newborn. However, this treatment is unfortunately only partially neuroprotective and can only be used to treat hypoxic-ischemic encephalopathy in full term infants. Therefore, there is an urgent need for adjunctive therapeutic strategies. Post-ischemic neuro-inflammation is a crucial contributor to the evolution of brain injury in neonates and constitutes a promising therapeutic target...
June 7, 2018: Brain Sciences
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