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Hypoxic-ischemic encephalopathy

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https://www.readbyqxmd.com/read/28295535/longer-and-deeper-cooling-for-hypoxic-ischemic-encephalopathy-in-neonates-does-not-reduce-mortality
#1
Dmitry Dukhovny, John A F Zupancic
No abstract text is available yet for this article.
March 12, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28291783/oesophageal-heat-exchangers-with-a-diameter-of-11mm-or-14-7mm-are-equally-effective-and-safe-for-targeted-temperature-management
#2
Daniel C Schroeder, Maria Guschlbauer, Alexandra C Maul, Daniel A Cremer, Ingrid Becker, David de la Puente Bethencourt, Peter Paal, Stephan A Padosch, Wolfgang A Wetsch, Thorsten Annecke, Bernd W Böttiger, Anja Sterner-Kock, Holger Herff
BACKGROUND: Targeted temperature management (TTM) is widely used in critical care settings for conditions including hepatic encephalopathy, hypoxic ischemic encephalopathy, meningitis, myocardial infarction, paediatric cardiac arrest, spinal cord injury, traumatic brain injury, ischemic stroke and sepsis. Furthermore, TTM is a key treatment for patients after out-of-hospital cardiac-arrest (OHCA). However, the optimal cooling method, which is quick, safe and cost-effective still remains controversial...
2017: PloS One
https://www.readbyqxmd.com/read/28286301/immuno-modulator-inter-alpha-inhibitor-proteins-ameliorate-complex-auditory-processing-deficits-in-rats-with-neonatal-hypoxic-ischemic-brain-injury
#3
Steven W Threlkeld, Yow-Pin Lim, Molly La Rue, Cynthia Gaudet, Barbara S Stonestreet
Hypoxic-ischemic (HI) brain injury is recognized as a significant problem in the perinatal period, contributing to life-long language-learning and other cognitive impairments. Central auditory processing deficits are common in infants with hypoxic-ischemic encephalopathy and have been shown to predict language learning deficits in other at risk infant populations. Inter-alpha inhibitor proteins (IAIPs) are a family of structurally related plasma proteins that modulate the systemic inflammatory response to infection and have been shown to attenuate cell death and improve learning outcomes after neonatal brain injury in rats...
March 10, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28285429/hypothermia-decreased-the-expression-of-heat-shock-proteins-in-neonatal-rat-model-of-hypoxic-ischemic-encephalopathy
#4
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/28282552/periictal-activity-in-cooled-asphyxiated-neonates-with-seizures
#5
Philippe Major, Anne Lortie, Mathieu Dehaes, Gregory Anton Lodygensky, Anne Gallagher, Lionel Carmant, Ala Birca
PURPOSE: Seizures are common in critically ill neonates. Both seizures and antiepileptic treatments may lead to short term complications and worsen the outcomes. Predicting the risks of seizure reoccurrence could enable individual treatment regimens and better outcomes. We aimed to identify EEG signatures of seizure reoccurrence by investigating periictal electrographic features and spectral power characteristics in hypothermic neonates with hypoxic-ischemic encephalopathy (HIE) with or without reoccurrence of seizures on rewarming...
March 2, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28278217/passive-hypothermia-%C3%A2-35-36%C3%A2-c-during-transport-of-newborns-with-hypoxic-ischaemic-encephalopathy
#6
Aurélie Sellam, Noëlla Lode, Azzedine Ayachi, Gilles Jourdain, Stéphane Dauger, Peter Jones
BACKGROUND: Hypothermia initiated in the first six hours of life in term infants with hypoxic ischemic encephalopathy reduces the risk of death and severe neurological sequelae. Our study's principal objective was to evaluate transport predictors potentially influencing arrival in NICU (Neonatal Intensive Care Unit) at a temperature ≥35-<36°C. METHODOLOGY/PRINCIPAL FINDINGS: A multi-centric, prospective cohort study was conducted during 18 months by the three Neonatal Transport Teams and 13 NICUs...
2017: PloS One
https://www.readbyqxmd.com/read/28277555/frequency-and-causes-of-hypotonia-in-neonatal-period-with-the-gestational-age-of-more-than-36-weeks-in-nicu-of-mofid-children-hospital-tehran-iran-during-2012-2014
#7
Nosratollah Seyed Shahabi, Hossain Fakhraee, Mohammad Kazemian, Abolfazl Afjeh, Minoo Fallahi, Maryam Shariati, Fatemeh Gorji
OBJECTIVE: Hypotonia is a serious neurologic problem in neonatal period. Although hypotonia is a nonspecific clinical finding but it is the most common motor disorder in the newborn. The objective of this study was to determine the frequency of neonatal hypotonia then to ascertain of the most common causes. MATERIALS & METHODS: This cross -sectional prospective study was carried out on the 3281 term infants hospitalized in conventional and NICU of Mofid Children Hospital, Tehran, Iran during 2012-2014...
2017: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/28277490/erythropoietin-monotherapy-in-perinatal-asphyxia-with-moderate-to-severe-encephalopathy-a-randomized-placebo-controlled-trial
#8
R R Malla, R Asimi, M A Teli, F Shaheen, M A Bhat
OBJECTIVE: Erythropoietin (EPO) is neuroprotective after asphyxia in animal studies. The efficacy and safety of EPO monotherapy in term neonates with hypoxic ischemic encephalopathy (HIE) is uncertain. STUDY DESIGN: Hundred term neonates with moderate or severe HIE were randomized by random permuted block algorithm to receive either EPO 500 U kg(-1) per dose in 2 ml saline intravenously (50 neonates) on alternate days for a total of five doses with the first dose given by 6 h of age (treatment group) or 2 ml of normal saline (50 neonates) similarly for a total of five doses (placebo group) in a double-blind study...
March 9, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28277364/intrauterine-hyperoxemia-and-risk-of-neonatal-morbidity
#9
Nandini Raghuraman, Lorene A Temming, Molly J Stout, George A Macones, Alison G Cahill, Methodius G Tuuli
OBJECTIVE: To test the hypothesis that intrauterine hyperoxemia is associated with an increased risk of neonatal morbidity. METHODS: This was a secondary analysis of a prospective study of singleton, nonanomalous deliveries at or beyond 37 weeks of gestation at an institution with a universal umbilical cord gas policy from 2010 to 2014. The primary outcome was a composite of neonatal morbidity including neonatal death, meconium aspiration syndrome, intubation, mechanical ventilation, hypoxic-ischemic encephalopathy, and hypothermic therapy...
March 6, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28277351/association-of-catastrophic-neonatal-outcomes-with-increased-rate-of-subsequent-cesarean-deliveries
#10
Ohad Dan, Drorith Hochner-Celnikier, Amy Solnica, Yonatan Loewenstein
OBJECTIVE: To evaluate whether full-term deliveries resulting in neonates diagnosed with hypoxic-ischemic encephalopathy are associated with a significant increase in the rate of subsequent unscheduled cesarean deliveries. METHODS: We conducted a retrospective chart review study and examined all deliveries in the Department of Obstetrics and Gynecology at Hadassah University Hospital, Mt. Scopus campus, Jerusalem, Israel, during 2009-2014. We reviewed all cases of hypoxic-ischemic encephalopathy in singleton, term, liveborn neonates and identified seven such cases, three of which were attributed to obstetric mismanagement and four that were not...
March 6, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28274169/safety-and-efficacy-of-topiramate-in-neonates-with-hypoxic-ischemic-encephalopathy-treated-with-hypothermia-neonati-a-feasibility-study
#11
Luca Filippi, Patrizio Fiorini, Serena Catarzi, Elettra Berti, Letizia Padrini, Elisa Landucci, Gianpaolo Donzelli, Laura Bartalena, Erika Fiorentini, Antonio Boldrini, Matteo Giampietri, Rosa Teresa Scaramuzzo, Giancarlo la Marca, Maria Luisa Della Bona, Simona Fiori, Francesca Tinelli, Ada Bancale, Andrea Guzzetta, Giovanni Cioni, Tiziana Pisano, Melania Falchi, Renzo Guerrini
Purpose To investigate the feasibility of a study based on treatment with topiramate added to moderate hypothermia in newborns with hypoxic ischemic encephalopathy (HIE). Materials and methods Multicenter randomized controlled trial. Term newborns with precocious metabolic, clinical and electroencephalographic (EEG) signs of HIE were selected according to their amplified integrated EEG pattern and randomized to receive either topiramate (10 mg/kg once a day for the first three days of life) plus moderate hypothermia or hypothermia alone...
March 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28274150/biochemical-and-clinical-predictors-of-hypoxic-ischemic-encephalopathy-after-perinatal-asphyxia
#12
Rebekka Jones, Axel Heep, David Odd
OBJECTIVE: To determine the usefulness of measures, available shortly after birth, as predictors of hypoxic-ischemic encephalopathy (HIE) following perinatal asphyxia. PATIENTS: All inborn patients at Southmead Hospital between January 2012 and March 2014 at ≥36 weeks gestation with a pH <7 or BE >16 on cord or baby's blood within one hour of birth or 10-minute Apgar score ≤5 or requiring intermittent positive pressure ventilation at 10 minutes were eligible for inclusion...
March 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28273662/dedifferentiated-fat-cells-as-a-novel-source-for-cell-therapy-to-target-neonatal-hypoxic-ischemic-encephalopathy
#13
Alkisti Mikrogeorgiou, Yoshiaki Sato, Taiki Kondo, Tetsuo Hattori, Yuichiro Sugiyama, Miharu Ito, Akiko Saito, Keiko Nakanishi, Masahiro Tsuji, Tomohiko Kazama, Koichiro Kano, Taro Matsumoto, Masahiro Hayakawa
Neonatal hypoxic-ischemic (HI) encephalopathy (HIE) remains a major cause of mortality and persistent neurological disabilities in affected individuals. At present, hypothermia is considered to be the only applicable treatment option, although growing evidence suggests that cell-based therapy might achieve better outcomes. Dedifferentiated fat (DFAT) cells are derived from mature adipocytes via a dedifferentiation strategy called ceiling culture. Their abundance and ready availability might make them an ideal therapeutic tool for the treatment of HIE...
March 9, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28268686/using-hilbert-huang-transform-to-assess-eeg-slow-wave-activity-during-anesthesia-in-post-cardiac-arrest-patients
#14
Jukka Kortelainen, Eero Vayrynen, Usko Huuskonen, Jouko Laurila, Juha Koskenkari, Janne T Backman, Seppo Alahuhta, Tapio Seppanen, Tero Ala-Kokko
Hypoxic ischemic encephalopathy (HIE) is a severe consequence of cardiac arrest (CA) representing a substantial diagnostic challenge. We have recently designed a novel method for the assessment of HIE after CA. The method is based on estimating the severity of the brain injury by analyzing changes in the electroencephalogram (EEG) slow wave activity while the patient is exposed to an anesthetic drug propofol in a controlled manner. In this paper, Hilbert-Huang Transform (HHT) was used to analyze EEG slow wave activity during anesthesia in ten post-CA patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268486/identifying-stereotypic-evolving-micro-scale-seizures-sems-in-the-hypoxic-ischemic-eeg-of-the-pre-term-fetal-sheep-with-a-wavelet-type-ii-fuzzy-classifier
#15
Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth
Perinatal hypoxic-ischemic encephalopathy (HIE) around the time of birth due to lack of oxygen can lead to debilitating neurological conditions such as epilepsy and cerebral palsy. Experimental data have shown that brain injury evolves over time, but during the first 6-8 hours after HIE the brain has recovered oxidative metabolism in a latent phase, and brain injury is reversible. Treatments such as therapeutic cerebral hypothermia (brain cooling) are effective when started during the latent phase, and continued for several days...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268471/examining-the-effect-of-mgso4-on-sharp-wave-transient-activity-in-the-hypoxic-ischemic-fetal-sheep-model
#16
Meherzad J Lakadia, Hamid Abbasi, Alistair J Gunn, Charles P Unsworth, Laura Bennet
Hypoxic-ischemic encephalopathy (HIE) due to lack of oxygen is a debilitating disorder experienced by a significant number of preterm infants during birth. Studies show that the brain undergoes different phases of injury following hypoxic insult, but the first 6-8 hours (known as a latent phase) are the key to treatment efficacy. Cerebral hypothermia is one known treatment, and for it to be effective it must be started during the latent phase and continued for several days. In order to determine the effectiveness of treatment it is important to pinpoint the time of insult...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28263524/foetal-asphyxia-as-a-strong-stimulator-of-the-sympathetic-nervous-system-in-the-brain-case-report
#17
Ingrid Brucknerová, Eduard Ujházy
The aim of the study was to analyse case report of prenatally unknown asphyxia of the foetus (a preterm newborn from the second pregnancy delivered by urgent caesarean section in 31st gestational week; birth weight 850 grams, birth length 41 cm, value of Apgar score 7/8) with signs of respiratory insufficiency immediately after birth with hypotonicity. The authors present the case of postnatal at the 1st day of life assessed cystic malformation in the brain of premature newborn. They emphasize the importance of detailed prenatal investigation as most important in preventing prenatal asphyxia and consequent complications...
December 18, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28261573/understanding-the-full-spectrum-of-organ-injury-following-intrapartum-asphyxia
#18
REVIEW
Domenic A LaRosa, Stacey J Ellery, David W Walker, Hayley Dickinson
Birth asphyxia is a significant global health problem, responsible for ~1.2 million neonatal deaths each year worldwide. Those who survive often suffer from a range of health issues including brain damage-manifesting as cerebral palsy (CP)-respiratory insufficiency, cardiovascular collapse, and renal dysfunction, to name a few. Although the majority of research is directed toward reducing the brain injury that results from intrapartum birth asphyxia, the multi-organ injury observed in surviving neonates is of equal importance...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28256481/spectrum-and-outcome-of-neonatal-emergencies-seen-in-a-free-health-care-program-in-south-western-nigeria
#19
M T Abiodun, R O Oluwafemi
BACKGROUND: Neonatal emergencies contribute significantly to under-five morbidity and mortality in developing countries, partly due to poverty and limited access to quality healthcare in rural communities. AIMS: The aim is to evaluate the spectrum, outcome, case fatality rates (CFRs), and prognostic factors of neonatal emergencies seen in the two free health-care facilities in Ondo State. METHODS: This was a cross-sectional descriptive study of neonatal emergencies...
March 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28256028/pharyngeal-stimulus-induced-reflexes-are-impaired-in-infants-with-perinatal-asphyxia-does-maturation-modify
#20
P S Jensen, I K Gulati, T R Shubert, S Sitaram, M Sivalingam, K A Hasenstab, M A El-Mahdy, S R Jadcherla
BACKGROUND: Development of pharyngo-esophageal protective reflexes among infants with hypoxic ischemic encephalopathy (HIE) is unclear. Our aim was to distinguish these reflexes from controls and examine the maturational changes in HIE infants. METHODS: We evaluated 14 HIE infants (seven males) at 41.4±0.6 (HIE Time-1) and 46.5±0.6 (HIE Time-2) weeks postmenstrual age (PMA). Seven controls (three males) were evaluated at 43.5±1.3 weeks PMA. Graded pharyngeal stimulation with liquids (0...
March 3, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
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