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Advances in Clinical and Experimental... Aug 2020Despite the progress in perinatal care, perinatal asphyxia (PA) remains a significant problem in neonatology. The development of therapeutic hypothermia (TH) has... (Review)
Review
Despite the progress in perinatal care, perinatal asphyxia (PA) remains a significant problem in neonatology. The development of therapeutic hypothermia (TH) has improved the prognosis, but it still remains uncertain in hypoxic neonates. The evaluation of the severity of ischemia/hypoxia after birth is crucial to the choice of treatment, and with accurate long-term prognosis, appropriate further patient care can be planned. This article presents various methods for the preliminary assessment of brain damage and prognosis in newborns with PA treated with TH. The importance of assessing the neurological condition and the usefulness of laboratory and electrophysiological testing and imaging are discussed. New methods are also noted, which are at the stage of clinical trials. A combination of the prognostic tests presented in this article can provide greater prognostic accuracy for predicting long-term neurological outcomes in infants with hypoxic-ischemic encephalopathy (HIE) undergoing TH than either of these tests independently. Acknowledging the limitations of individual tools in certain clinical situations and the integration of the information available from multiple biomarkers may help improve the accuracy of prognostication.
Topics: Asphyxia; Asphyxia Neonatorum; Humans; Hypothermia, Induced; Hypoxia-Ischemia, Brain; Infant; Infant, Newborn; Prognosis
PubMed: 32820870
DOI: 10.17219/acem/124437 -
World Journal of Pediatrics : WJP Jun 2023Current diagnostic criteria for hypoxic-ischemic encephalopathy in the early hours lack objective measurement tools. Therefore, this systematic review aims to identify... (Review)
Review
BACKGROUND
Current diagnostic criteria for hypoxic-ischemic encephalopathy in the early hours lack objective measurement tools. Therefore, this systematic review aims to identify putative molecules that can be used in diagnosis in daily clinical practice (PROSPERO ID: CRD42021272610).
DATA SOURCES
Searches were performed in PubMed, Web of Science, and Science Direct databases until November 2020. English original papers analyzing samples from newborns > 36 weeks that met at least two American College of Obstetricians and Gynecologists diagnostic criteria and/or imaging evidence of cerebral damage were included. Bias was assessed by the Newcastle-Ottawa Scale. The search and data extraction were verified by two authors separately.
RESULTS
From 373 papers, 30 met the inclusion criteria. Data from samples collected in the first 72 hours were extracted, and increased serum levels of neuron-specific enolase and S100-calcium-binding protein-B were associated with a worse prognosis in newborns that suffered an episode of perinatal asphyxia. In addition, the levels of glial fibrillary acidic protein, ubiquitin carboxyl terminal hydrolase isozyme-L1, glutamic pyruvic transaminase-2, lactate, and glucose were elevated in newborns diagnosed with hypoxic-ischemic encephalopathy. Moreover, pathway analysis revealed insulin-like growth factor signaling and alanine, aspartate and glutamate metabolism to be involved in the early molecular response to insult.
CONCLUSIONS
Neuron-specific enolase and S100-calcium-binding protein-B are potential biomarkers, since they are correlated with an unfavorable outcome of hypoxic-ischemic encephalopathy newborns. However, more studies are required to determine the sensitivity and specificity of this approach to be validated for clinical practice.
Topics: Pregnancy; Female; Humans; Infant, Newborn; Hypoxia-Ischemia, Brain; Biomarkers; Prognosis; Asphyxia Neonatorum; S100 Proteins; Phosphopyruvate Hydratase
PubMed: 37084165
DOI: 10.1007/s12519-023-00698-7 -
Seminars in Perinatology Dec 2016In this article, we review the childhood outcomes of neonates with birth depression and/or hypoxic-ischemic encephalopathy. The outcomes of these children prior to the... (Review)
Review
In this article, we review the childhood outcomes of neonates with birth depression and/or hypoxic-ischemic encephalopathy. The outcomes of these children prior to the era of hypothermia for neuroprotection will first be summarized, followed by discussion of results from randomized controlled trials of therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy. The predictors of outcome in childhood following neonatal HIE using clinical and imaging biomarkers following hypothermia therapy will be described.
Topics: Alanine Transaminase; Apgar Score; Aspartate Aminotransferases; Asphyxia Neonatorum; Biomarkers; Child; Creatinine; Developmental Disabilities; Disability Evaluation; Humans; Hypothermia, Induced; Hypoxia-Ischemia, Brain; Infant, Newborn; Infant, Newborn, Diseases; Magnetic Resonance Imaging; Neurologic Examination; Outcome Assessment, Health Care; Randomized Controlled Trials as Topic; Severity of Illness Index
PubMed: 27863707
DOI: 10.1053/j.semperi.2016.09.007 -
Frontiers in Endocrinology 2023Perinatal asphyxia is one of the three most important causes of neonatal mortality and morbidity. Therapeutic hypothermia represents the standard treatment for infants... (Review)
Review
INTRODUCTION
Perinatal asphyxia is one of the three most important causes of neonatal mortality and morbidity. Therapeutic hypothermia represents the standard treatment for infants with moderate-severe perinatal asphyxia, resulting in reduction in the mortality and major neurodevelopmental disability. So far, data in the literature focusing on the endocrine aspects of both asphyxia and hypothermia treatment at birth are scanty, and many aspects are still debated. Aim of this narrative review is to summarize the current knowledge regarding the short- and long-term effects of perinatal asphyxia and of hypothermia treatment on the endocrine system, thus providing suggestions for improving the management of asphyxiated children.
RESULTS
Involvement of the endocrine system (especially glucose and electrolyte disturbances, adrenal hemorrhage, non-thyroidal illness syndrome) can occur in a variable percentage of subjects with perinatal asphyxia, potentially affecting mortality as well as neurological outcome. Hypothermia may also affect endocrine homeostasis, leading to a decreased incidence of hypocalcemia and an increased risk of dilutional hyponatremia and hypercalcemia.
CONCLUSIONS
Metabolic abnormalities in the context of perinatal asphyxia are important modifiable factors that may be associated with a worse outcome. Therefore, clinicians should be aware of the possible occurrence of endocrine complication, in order to establish appropriate screening protocols and allow timely treatment.
Topics: Infant, Newborn; Infant; Pregnancy; Female; Child; Humans; Asphyxia; Hypothermia; Parturition; Asphyxia Neonatorum; Endocrine System
PubMed: 37929024
DOI: 10.3389/fendo.2023.1249700 -
Lakartidningen Aug 2018
Topics: Asphyxia Neonatorum; Cerebral Palsy; Humans; Hypothermia, Induced; Infant, Newborn; Registries
PubMed: 30152854
DOI: No ID Found -
The Journal of the College of General... Aug 1963
Topics: Asphyxia Neonatorum; Female; Humans; Infant, Newborn; Obstetric Labor Complications; Pregnancy; Pregnancy, Prolonged; Resuscitation; United Kingdom
PubMed: 14044048
DOI: No ID Found -
Neural Plasticity 2017Birth asphyxia also termed perinatal asphyxia is an obstetric complication that strongly affects brain structure and function. Central nervous system is highly... (Review)
Review
Birth asphyxia also termed perinatal asphyxia is an obstetric complication that strongly affects brain structure and function. Central nervous system is highly susceptible to oxidative damage caused by perinatal asphyxia while activation and maturity of the proper pathways are relevant to avoiding abnormal neural development. Perinatal asphyxia is associated with high morbimortality in term and preterm neonates. Although several studies have demonstrated a variety of biochemical and molecular pathways involved in perinatal asphyxia physiopathology, little is known about the synaptic alterations induced by perinatal asphyxia. Nearly 25% of the newborns who survive perinatal asphyxia develop neurological disorders such as cerebral palsy and certain neurodevelopmental and learning disabilities where synaptic connectivity disturbances may be involved. Accordingly, here we review and discuss the association of possible synaptic dysfunction with perinatal asphyxia on the basis of updated evidence from an experimental model.
Topics: Animals; Asphyxia Neonatorum; Disease Models, Animal; Humans; Infant, Newborn; Nervous System Diseases; Synapses
PubMed: 28326198
DOI: 10.1155/2017/3436943 -
Annals of Neurology Dec 2022Seizures are more common in the neonatal period than at any other stage of life. Phenobarbital is the first-line treatment for neonatal seizures and is at best effective...
OBJECTIVE
Seizures are more common in the neonatal period than at any other stage of life. Phenobarbital is the first-line treatment for neonatal seizures and is at best effective in approximately 50% of babies, but may contribute to neuronal injury. Here, we assessed the efficacy of phenobarbital versus the synthetic neurosteroid, ganaxolone, to moderate seizure activity and neuropathology in neonatal lambs exposed to perinatal asphyxia.
METHODS
Asphyxia was induced via umbilical cord occlusion in term lambs at birth. Lambs were treated with ganaxolone (5mg/kg/bolus then 5mg/kg/day for 2 days) or phenobarbital (20mg/kg/bolus then 5mg/kg/day for 2 days) at 6 hours. Abnormal brain activity was classified as stereotypic evolving (SE) seizures, epileptiform discharges (EDs), and epileptiform transients (ETs) using continuous amplitude-integrated electroencephalographic recordings. At 48 hours, lambs were euthanized for brain pathology.
RESULTS
Asphyxia caused abnormal brain activity, including SE seizures that peaked at 18 to 20 hours, EDs, and ETs, and induced neuronal degeneration and neuroinflammation. Ganaxolone treatment was associated with an 86.4% reduction in the number of seizures compared to the asphyxia group. The total seizure duration in the asphyxia+ganaxolone group was less than the untreated asphyxia group. There was no difference in the number of SE seizures between the asphyxia and asphyxia+phenobarbital groups or duration of SE seizures. Ganaxolone treatment, but not phenobarbital, reduced neuronal degeneration within hippocampal CA1 and CA3 regions, and cortical neurons, and ganaxolone reduced neuroinflammation within the thalamus.
INTERPRETATION
Ganaxolone provided better seizure control than phenobarbital in this perinatal asphyxia model and was neuroprotective for the newborn brain, affording a new therapeutic opportunity for treatment of neonatal seizures. ANN NEUROL 2022;92:1066-1079.
Topics: Animals; Humans; Infant, Newborn; Anticonvulsants; Asphyxia Neonatorum; Epilepsy; Phenobarbital; Seizures; Sheep; Animals, Newborn; Pregnanolone; Disease Models, Animal
PubMed: 36054160
DOI: 10.1002/ana.26493 -
BMC Pediatrics Mar 2020Despite different preventive strategies that have been implemented in different health institutions in the country, neonatal mortality and morbidity are still... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Despite different preventive strategies that have been implemented in different health institutions in the country, neonatal mortality and morbidity are still significantly increasing in Ethiopia. Perinatal asphyxia is the leading cause of neonatal morbidity and mortality worldwide. As a result, this systematic review and meta-analysis aimed to assess the prevalence and associated factors of perinatal asphyxia in Ethiopia.
METHODS
Online databases (PubMed, HINARI, EMBASE, Google Scholar and African Journals), other gray and online repository accessed studies were searched using different search engines. Newcastle-Ottawa Quality Assessment Scale (NOS) was used for critical appraisal of studies. The analysis was done using STATA 11 software. The Cochran Q test and I test statistics were used to test the heterogeneity of studies. The funnel plot and Egger's test were used to detect publication bias of the studies. The pooled prevalence of perinatal asphyxia and the odds ratio (OR) with a 95% confidence interval was presented using forest plots.
RESULT
Nine studies were included in this review, with a total of 12,249 live births in Ethiopia. The overall pooled prevalence of perinatal asphyxia in Ethiopia was 24.06% (95 95%CI: 18.11-30.01). Associated factors of perinatal asphyxia included prolonged labor (OR = 2.79, 95% CI: 1.98, 3.93), low birth weight (OR = 6.52, 95% CI: 4.40, 9.65), meconium-stained amniotic fluid (OR = 5.91, 95% CI: 3.95, 8.83) and instrumental delivery (OR = 4.04, 95% CI: 2.48, 6.60) were the determinant factors of perinatal asphyxia in Ethiopia.
CONCLUSIONS
The overall pooled prevalence of perinatal asphyxia was remarkably high. Duration of labor, meconium-stained amniotic fluid, instrumental deliveries, and birth weight were the associated factors of perinatal asphyxia in Ethiopia. Therefore, efforts should be made to improve the quality of intrapartum care service to prevent prolonged labor and fetal complications and to identify and make a strict follow up of mothers with meconium-stained amniotic fluid. This finding is important to early recognition and management of its contributing factors, might modify hypoxic-ischemic encephalopathy and may improve the implementation of the standard guideline effectively and consistently.
Topics: Asphyxia Neonatorum; Cross-Sectional Studies; Ethiopia; Female; Humans; Infant, Newborn; Pregnancy; Prenatal Care
PubMed: 32209083
DOI: 10.1186/s12887-020-02039-3 -
African Health Sciences Mar 2021More than one third of the neonatal deaths at Neonatal Intensive Care Unit of Debre Tabor General Hospital (DTGH) are attributable to birth asphyxia. Most of these...
BACKGROUND
More than one third of the neonatal deaths at Neonatal Intensive Care Unit of Debre Tabor General Hospital (DTGH) are attributable to birth asphyxia. Most of these neonates are referred from maternity ward of the hospital. However, there is no recent evidence on the prevalence and specific determinants of birth asphyxia at DTGH. Besides, public health importance of factors like birth spacing weren't addressed in the prior studies.
METHODS
A cross sectional study was conducted on a sample of 240 newborns at delivery ward. The collected data were cleaned, coded and entered into Epi -data version 4.2 and exported to Stata version 14. Binary logistic regression model was considered and statistical significance was declared at P< 0.05 using adjusted odds ratio.
RESULTS
The prevalence of asphyxia neonatorum was 6.7 % based on the fifth minute APGAR score. From multi-variable logistic regression analysis, antenatal obstetric complications (AOR = 2.63, 95% CI: 3.75, 14.29), fetal malpresentation (AOR = 3.17, 95% CI: 1.21, 15.20), premature rupture of fetal membranes (AOR = 6.56, 95% CI: 3.48, 18.12) and meconium stained amniotic fluid (AOR = 2.73, 95% CI: 1.76, 14.59) were significant predictors.
CONCLUSION
The prevalence of fifth minute asphyxia neonatorum was relatively low. Fortunately, its predictors are modifiable. Thus, we can mitigate the problem even with our limited resources such as enhancing the existing efforts of antenatal and intra-partum care, which could help early detection and management of any obstetric and neonatal health abnormality."
Topics: Adult; Apgar Score; Asphyxia Neonatorum; Cross-Sectional Studies; Delivery, Obstetric; Ethiopia; Female; Hospitals, General; Humans; Infant, Newborn; Intensive Care Units, Neonatal; Live Birth; Male; Obstetric Labor Complications; Pregnancy; Prevalence
PubMed: 34394321
DOI: 10.4314/ahs.v21i1.49