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Neonatal hypoxic ischemic encephalopathy

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https://www.readbyqxmd.com/read/28222320/antioxidant-polymorphisms-do-not-influence-the-risk-of-epilepsy-or-its-drug-resistance-after-neonatal-hypoxic-ischemic-brain-injury
#1
Katarina Esih, Katja Goričar, Vita Dolžan, Zvonka Rener-Primec
PURPOSE: The aim of this study was to investigate if common functional antioxidant polymorphisms are associated with epilepsy after neonatal hypoxic-ischemic encephalopathy (HIE). The antioxidant enzymes manganese superoxide dismutase (SOD2), glutathione peroxidase 1 (GPX1) and catalase (CAT) represent the primary defence mechanism against reactive oxygen species (ROS). Evidence suggests that genetic variants in antioxidant enzymes could influence susceptibility to epilepsy, but to date the relationship between them remains unclear...
February 3, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28217152/value-of-electroencephalographic-monitoring-in-newborns-with-hypoxic-ischemic-encephalopathy-treated-with-hypothermia
#2
Hatem Hamed Elshorbagy, Ahmed A Azab, Naglaa M Kamal, Naglaa Fathy Barseem, Mohamed M Bassiouny, Mostafa A Elsayed, Tohamy H Elkhouly
BACKGROUND: The values of electroencephalography (EEG) in neonatal hypoxic-ischemic encephalopathy (HIE) during therapeutic hypothermia (TH) are still uncertain. AIMS: The aim of this study is to detect EEG background, the prevalence of seizures during cooling, and to determine different EEG patterns that can predict brain injury in magnetic resonance imaging (MRI). PATIENTS AND METHODS: Thirty-nine newborns with HIE were subjected to TH. Continuous monitoring by video-EEG was carried out throughout cooling and during rewarming...
October 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28211647/clinical-characteristics-predicting-abnormal-brain-magnetic-resonance-image-findings-in-hypoxic-ischemic-encephalopathy-infants
#3
Sook K Yum, Cheong-Jun Moon, Young-Ah Youn, In K Sung
BACKGROUND: The aim of this study was to elucidate the specific clinical characteristics associated with abnormal brain magnetic resonance image(MRI) findings in hypoxic ischemic encephalopathy(HIE) infants in order to discern how to predict poorer outcomes more accurately. METHODS: A retrospective data analysis of HIE infants admitted to the neonatal intensive care unit of a tertiary hospital was performed. Baseline perinatal information and physical and neurological findings were compared in HIE infants according to the presence of abnormal brain MRI findings...
February 17, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28209514/plasma-metabolite-score-correlates-with-hypoxia-time-in-a-newly-born-piglet-model-for-asphyxia
#4
Julia Kuligowski, Rønnaug Solberg, Ángel Sánchez-Illana, Leonid Pankratov, Anna Parra-Llorca, Guillermo Quintás, Ola Didrik Saugstad, Máximo Vento
Hypoxic-ischemic encephalopathy (HIE) secondary to perinatal asphyxia is a leading cause of mortality and acquired long-term neurologic co-morbidities in the neonate. The most successful intervention for the treatment of moderate to severe HIE is moderate whole body hypothermia initiated within 6h from birth. The objective and prompt identification of infants who are at risk of developing moderate to severe HIE in the critical first hours still remains a challenge. This work proposes a metabolite score calculated based on the relative intensities of three metabolites (choline, 6,8-dihydroxypurine and hypoxanthine) that showed maximum correlation with hypoxia time in a consolidated piglet model for neonatal hypoxia-ischemia...
February 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/28206999/early-eeg-power-predicts-mri-injury-in-infants-with-hypoxic-ischemic-encephalopathy
#5
S V Jain, J M Zempel, P Srinivasakumar, M Wallendorf, A Mathur
OBJECTIVE: Early identification of infants with hypoxic-ischemic encephalopathy who have adverse outcomes despite neuroprotection with therapeutic hypothermia (TH) is urgently needed. Recent studies have found limited value of amplitude integrated EEG (aEEG) for predicting short-term outcomes in this population. Other quantitative electroencephalography (EEG) variables reflecting EEG amplitude, such as EEG power, could provide early stratification of a high-risk cohort in this population...
February 16, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28198757/effect-of-temperature-on-heart-rate-variability-in-neonatal-icu-patients-with-hypoxic-ischemic-encephalopathy
#6
An N Massaro, Heather E Campbell, Marina Metzler, Tareq Al-Shargabi, Yunfei Wang, Adre du Plessis, Rathinaswamy B Govindan
OBJECTIVE: To determine whether measures of heart rate variability are related to changes in temperature during rewarming after therapeutic hypothermia for hypoxic-ischemic encephalopathy. DESIGN: Prospective observational study. SETTING: Level 4 neonatal ICU in a free-standing academic children's hospital. PATIENTS: Forty-four infants with moderate to severe hypoxic-ischemic encephalopathy treated with therapeutic hypothermia...
February 14, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28196356/therapeutic-hypothermia-provides-variable-protection-against-behavioral-deficits-after-neonatal-hypoxia-ischemia-a-potential-role-for-brain-derived-neurotrophic-factor
#7
Johana Diaz, Suleiman Abiola, Nancy Kim, Oliver Avaritt, Debra Flock, Jenny Yu, Frances J Northington, Raul Chavez-Valdez
BACKGROUND: Despite treatment with therapeutic hypothermia (TH), infants who survive hypoxic ischemic (HI) encephalopathy (HIE) have persistent neurological abnormalities at school age. Protection by TH against HI brain injury is variable in both humans and animal models. Our current preclinical model of hypoxia-ischemia (HI) and TH displays this variability of outcomes in neuropathological and neuroimaging end points with some sexual dimorphism. The detailed behavioral phenotype of this model is unknown...
February 15, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28182668/cross-sectional-study-of-mode-of-delivery-and-maternal-and-perinatal-outcomes-in-mainland-china
#8
Lei Hou, Susan Hellerstein, Allison Vitonis, Liying Zou, Yan Ruan, Xin Wang, Weiyuan Zhang
BACKGROUND: Cesarean delivery (CD) rates have risen globally with nearly 50% of the non-indicated CDs worldwide in China and Brazil. In China's One Child Policy era (1979-2015) most deliveries were women having their only child. Family size is a major determinant of the safety of medically non-indicated CD or CD on maternal request. The goal of this study is to document CD rates, indications, and analyze the relative safety of non-indicated CD compared to SVD and intrapartum CD. METHODS: Univariate and multivariate logistic regression analyses of the association between mode of delivery and short-term maternal and perinatal outcomes were performed on a cross-section of all deliveries at 39 hospitals in 14 provinces of China in 2011, presented as adjusted odds ratio (aOR), 99% confidence intervals (CI)...
2017: PloS One
https://www.readbyqxmd.com/read/28180081/automatic-quantification-of-ischemic-injury-on-diffusion-weighted-mri-of-neonatal-hypoxic-ischemic-encephalopathy
#9
Keelin Murphy, Niek E van der Aa, Simona Negro, Floris Groenendaal, Linda S de Vries, Max A Viergever, Geraldine B Boylan, Manon J N L Benders, Ivana Išgum
A fully automatic method for detection and quantification of ischemic lesions in diffusion-weighted MR images of neonatal hypoxic ischemic encephalopathy (HIE) is presented. Ischemic lesions are manually segmented by two independent observers in 1.5 T data from 20 subjects and an automatic algorithm using a random forest classifier is developed and trained on the annotations of observer 1. The algorithm obtains a median sensitivity and specificity of 0.72 and 0.99 respectively. F1-scores are calculated per subject for algorithm performance (median = 0...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28166364/interrater-agreement-in-the-interpretation-of-neonatal-electroencephalography-in-hypoxic-ischemic-encephalopathy
#10
Courtney J Wusthoff, Joseph Sullivan, Hannah C Glass, Renée A Shellhaas, Nicholas S Abend, Taeun Chang, Tammy N Tsuchida
OBJECTIVE: Research using neonatal electroencephalography (EEG) has been limited by a lack of a standardized classification system and interpretation terminology. In 2013, the American Clinical Neurophysiology Society (ACNS) published a guideline for standardized terminology and categorization in the description of continuous EEG in neonates. We sought to assess interrater agreement for this neonatal EEG categorization system as applied by a group of pediatric neurophysiologists. METHODS: A total of 60 neonatal EEG studies were collected from three institutions...
February 6, 2017: Epilepsia
https://www.readbyqxmd.com/read/28164607/serum-levels-of-cardiac-troponin-i-in-asphyxiated-neonates-predict-mortality
#11
Wen-Jie Zhou, Fan Yu, Jing Shi, Hui Yang, Sheng-Jie Zou, Yong-Mei Jiang
BACKGROUND: Cardiac troponin I (cTnI) is a well-established marker for detecting myocardial ischemic damage in neonates with hypoxic-ischemic encephalopathy. However, the predictive value of cTnI in assessing mortality in neonatal asphyxia remains obscure. This retrospective study aims to analyze the relationship between cTnI levels in blood serum with gestational age, birth weight, gender, delivery type, electrocardiography, echocardiography, Apgar scores, length of hospital stay, and mortality in asphyxiated neonates...
August 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164585/role-of-serum-level-of-neurometals-copper-zinc-and-magnesium-in-neonates-with-hypoxic-ischemic-encephalopathy
#12
Mostafa A El Foley, Hanan M Kamel, Samir M Mounir, Samuel N Habeb
BACKGROUND: Perinatal HIE is associated with high morbidity and mortality rates worldwide, despite the improvements in perinatal care. The aim of this study was to evaluate the role Cu, Zn, and Mg+2 neurometals in the development of neonatal hypoxic ischemic encephalopathy. METHODS: This study included two groups: group 1 (study group): Thirty full term, and diagnosed as having hypoxic ischemic encephalopathy. Group 2 (control group): Thirty full term healthy neonates...
September 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28161509/25-years-of-research-on-global-asphyxia-in-the-immature-rat-brain
#13
REVIEW
M Barkhuizen, D L A van den Hove, J S H Vles, H W M Steinbusch, B W Kramer, A W D Gavilanes
Hypoxic-ischemic encephalopathy remains a common cause of brain damage in neonates. Preterm infants have additional complications, as prematurity by itself increases the risk of encephalopathy. Currently, therapy for this subset of asphyxiated infants is limited to supportive care. There is an urgent need for therapies in preterm infants - and for representative animal models for preclinical drug development. In 1991, a novel rodent model of global asphyxia in the preterm infant was developed in Sweden. This method was based on the induction of asphyxia during the birth processes itself by submerging pups, still in the uterine horns, in a water bath followed by C-section...
February 1, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28150165/elective-delivery-versus-expectant-management-for-pre-eclampsia-a-meta-analysis-of-rcts
#14
Yonghong Wang, Min Hao, Stephanie Sampson, Jun Xia
PURPOSE: To evaluate the effectiveness and safety of elective delivery versus expectant management for women with pre-eclampsia (PE) and to assess neonatal outcomes before and after 34 weeks gestation. METHODS: We searched Biomed Central, CINAHL, Cochrane Library, Embase, HMIC, Medline, and WHO trial registry, British Nursing Index, ClinicalTrials.gov, Current Controlled Trials, and Web of Science on 16 March, 2016. 1704 citations were identified. Randomised controlled trials comparing elective delivery with expectant management for women with PE were included...
March 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28141719/-more-than-meets-the-eye-when-the-neonatal-course-may-impact-several-years-out
#15
Fadiyla Dopwell, John Maypole, Bharati Sinha, Heidi Currier, William DeBassio, Marilyn Augustyn
Nadia is a 7-year-old girl who you have followed since her discharge from the Neonatal Intensive Care Unit (NICU). Her parents are here today for an urgent visit with behavioral concerns, such as inattention, hyperactivity, and aggression.Nadia is a former 40-weeker born through vacuum-assisted vaginal delivery at 9 pounds 7 ounces. Her delivery was complicated with shoulder dystocia, which resulted in resuscitation. Her Apgar scores were 1, 3, and 4 at 1, 5, and 10 minutes, respectively. After intubation and stabilization on mechanical ventilation, Nadia was transferred to the NICU...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28141600/preventing-pressure-injuries-in-neonates-undergoing-therapeutic-hypothermia-for-hypoxic-ischemic-encephalopathy-an-interprofessional-quality-improvement-project
#16
Alexandra Luton, Jae Hernandez, Clive Robert Patterson, Jill Nielsen-Farrell, Anita Thompson, Jeffrey R Kaiser
BACKGROUND: Hospital-acquired pressure injuries (HAPIs) can be caused by multiple factors including pressure, shear, friction, moisture/incontinence, device-related pressure, immobility, inactivity, and nutritional deficits. Along with immobility, medical device-related (MDR) HAPIs are a primary cause of pressure injury in neonates, as the clinical practice setting has become increasingly technologically advanced. It is estimated that up to 50% of HAPIs are MDR in pediatric patients. Neonates are at particular risk for HAPI because of their specific anatomical, physiological, and developmental vulnerabilities...
January 30, 2017: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28126402/long-term-cognitive-effects-of-uridine-treatment-in-a-neonatal-rat-model-of-hypoxic-ischemic-encephalopathy
#17
Bulent Goren, Aysen Cakir, Busra Ocalan, Sema Serter Kocoglu, Tulin Alkan, Mehmet Cansev, Nevzat Kahveci
Hypoxic-ischemic encephalopathy (HIE), is the most common brain disorder in neonates during the perinatal period, which, to date, can only be managed to some extent by hypothermia. Uridine is the principal circulating pyrimidine in humans which is utilized as a precursor for membrane phospholipid biosynthesis. Uridine has recently been shown to provide clinical benefit in treatment of Alzheimer's disease due to its involvement in increasing number of brain synapses along with other phospholipid precursors. We previously showed that uridine treatment ameliorated brain damage by reducing apoptosis in a rat model of neonatal HIE...
January 23, 2017: Brain Research
https://www.readbyqxmd.com/read/28123494/sbdps-and-tau-proteins-for-diagnosis-and-hypothermia-therapy-in-neonatal-hypoxic-ischemic-encephalopathy
#18
Hongwei Wu, Zhenguang Li, Xia Yang, Jinfeng Liu, Wei Wang, Gang Liu
The use of spectrin breakdown products (SBDPs) and Tau protein levels for diagnosis and a mild hypothermia therapy for treatment of neonatal hypoxic-ischemic encephalopathy (HIE) was evaluated. One hundred and fifty infants, with HIE within 12 h after birth, participated in the study. There were 30 newborns with mild symptoms, 60 with moderate symptoms, 60 with severe symptoms, and 30 in a control group. Regular therapy was used for the control and the mild HIE groups, and also for 30 cases in the group with moderate symptoms and for 30 in the group with severe symptoms...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28123348/inhibition-of-mirna-210-reverses-nicotine-induced-brain-hypoxic-ischemic-injury-in-neonatal-rats
#19
Lei Wang, Jun Ke, Yong Li, Qinyi Ma, Chiranjib Dasgupta, Xiaohui Huang, Lubo Zhang, DaLiao Xiao
Maternal tobacco use in pregnancy increases the risk of neurodevelopmental disorders and neurobehavioral deficits in postnatal life. The present study tested the hypothesis that perinatal nicotine exposure exacerbated brain vulnerability to hypoxic-ischemic (HI) injury in neonatal rats through up-regulation of miR-210 expression in the developing brain. Nicotine was administered to pregnant rats via subcutaneous osmotic minipumps. Experiments of HI brain injury were performed in 10-day-old pups. Perinatal nicotine treatment significantly decreased neonatal body and brain weights, but increased the brain to body weight ratio...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28121822/distinguishing-arterial-ischemic-stroke-from-hypoxic-ischemic-encephalopathy-in-the-neonate-at-birth
#20
Olaleye Sanu
No abstract text is available yet for this article.
February 2017: Obstetrics and Gynecology
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