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Cistone N, Pickler RH, Fortney CA, Nist MD. Effect of Routine Nurse Caregiving on the Stress Responses and Behavior State in Preterm Infants: A Systematic Review. Adv Neonatal Care 2024; 24:442-452. [PMID: 38968382 PMCID: PMC11361837 DOI: 10.1097/anc.0000000000001177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2024]
Abstract
BACKGROUND Although routine nurse caregiving is vital for the overall health of preterm infants, variations in approaches may exert distinct effects on preterm infants' stress responses and behavior state. PURPOSE The purpose of this systematic review was to examine routine nurse caregiving in the neonatal intensive care unit and its effect on stress responses and behavior state in preterm infants. DATA SOURCES A systematic search was conducted using PubMed, Embase, and CINAHL for studies published between 2013 and 2023. STUDY SELECTION Included studies enrolled preterm infants born <37 weeks gestational age and investigated nurse caregiving practices and effects on stress responses and/or behavior state. DATA EXTRACTION Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, data about study design, methods, findings, and limitations were extracted and summarized. Included studies were evaluated for bias using the National Health, Lung, and Blood Institute quality assessment tools. RESULTS All 13 studies included in the review received a fair quality rating. Nurse caregiving activities, including suctioning, diaper changes, bathing, and weighing, were associated with increases in heart and respiratory rates, blood pressure, energy expenditure, and motor responses, lower oxygen saturations, and fewer sleep states. IMPLICATIONS FOR PRACTICE AND RESEARCH Adapting nurse caregiving frequency and duration, aligning caregiving with infant state, and integrating developmental care strategies may reduce infant stress responses and support behavioral rest. Further research is needed to understand how caregiving activities affect stress responses and behavior state in preterm infants, aiding in identifying modifiable caregiving stressors to promote optimal development.
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Affiliation(s)
- Nicole Cistone
- The Ohio State University College of Nursing, Columbus, Ohio
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Häusler S, Robertson NJ, Golhen K, van den Anker J, Tucker K, Felder TK. Melatonin as a Therapy for Preterm Brain Injury: What Is the Evidence? Antioxidants (Basel) 2023; 12:1630. [PMID: 37627625 PMCID: PMC10451719 DOI: 10.3390/antiox12081630] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/28/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Despite significant improvements in survival following preterm birth in recent years, the neurodevelopmental burden of prematurity, with its long-term cognitive and behavioral consequences, remains a significant challenge in neonatology. Neuroprotective treatment options to improve neurodevelopmental outcomes in preterm infants are therefore urgently needed. Alleviating inflammatory and oxidative stress (OS), melatonin might modify important triggers of preterm brain injury, a complex combination of destructive and developmental abnormalities termed encephalopathy of prematurity (EoP). Preliminary data also suggests that melatonin has a direct neurotrophic impact, emphasizing its therapeutic potential with a favorable safety profile in the preterm setting. The current review outlines the most important pathomechanisms underlying preterm brain injury and correlates them with melatonin's neuroprotective potential, while underlining significant pharmacokinetic/pharmacodynamic uncertainties that need to be addressed in future studies.
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Affiliation(s)
- Silke Häusler
- Division of Neonatology, Department of Pediatrics, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Nicola J. Robertson
- EGA Institute for Women’s Health, University College London, London WC1E 6HX, UK; (N.J.R.); (K.T.)
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Klervi Golhen
- Pediatric Pharmacology and Pharmacometrics, University Children’s Hospital Basel (UKBB), University of Basel, 4001 Basel, Switzerland; (K.G.); (J.v.d.A.)
| | - John van den Anker
- Pediatric Pharmacology and Pharmacometrics, University Children’s Hospital Basel (UKBB), University of Basel, 4001 Basel, Switzerland; (K.G.); (J.v.d.A.)
- Division of Clinical Pharmacology, Children’s National Hospital, Washington, DC 20001, USA
| | - Katie Tucker
- EGA Institute for Women’s Health, University College London, London WC1E 6HX, UK; (N.J.R.); (K.T.)
| | - Thomas K. Felder
- Department of Laboratory Medicine, Paracelsus Medical University, 5020 Salzburg, Austria;
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Jaschke AC, Bos AF. Concept and considerations of a medical device: the active noise cancelling incubator. Front Pediatr 2023; 11:1187815. [PMID: 37465419 PMCID: PMC10350684 DOI: 10.3389/fped.2023.1187815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/19/2023] [Indexed: 07/20/2023] Open
Abstract
Background An increasingly 24/7 connected and urbanised world has created a silent pandemic of noise-induced hearing loss. Ensuring survival to children born (extremely) preterm is crucial. The incubator is a closed medical device, modifying the internal climate, and thus providing an environment for the child, as safe, warm, and comfortable as possible. While sound outside the incubator is managed and has decreased over the years, managing the noise inside the incubator is still a challenge. Method Using active noise cancelling in an incubator will eliminate unwanted sounds (i.e., from the respirator and heating) inside the incubator, and by adding sophisticated algorithms, normal human speech, neonatal intensive care unit music-based therapeutic interventions, and natural sounds will be sustained for the child in the pod. Applying different methods such as active noise cancelling, motion capture, sonological engineering. and sophisticated machine learning algorithms will be implemented in the development of the incubator. Projected Results A controlled and active sound environment in and around the incubator can in turn promote the wellbeing, neural development, and speech development of the child and minimise distress caused by unwanted noises. While developing the hardware and software pose individual challenges, it is about the system design and aspects contributing to it. On the one hand, it is crucial to measure the auditory range and frequencies in the incubator, as well as the predictable sounds that will have to be played back into the environment. On the other, there are many technical issues that have to be addressed when it comes to algorithms, datasets, delay, microphone technology, transducers, convergence, tracking, impulse control and noise rejection, noise mitigation stability, detection, polarity, and performance. Conclusion Solving a complex problem like this, however, requires a de-disciplinary approach, where each discipline will realise its own shortcomings and boundaries, and in turn will allow for innovations and new avenues. Technical developments used for building the active noise cancellation-incubator have the potential to contribute to improved care solutions for patients, both infants and adults.Code available at: 10.3389/fped.2023.1187815.
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Affiliation(s)
- Artur C. Jaschke
- Department of Paediatrics, Division of Neonatology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Music Therapy, ArtEZ University of the Arts, Enschede, Netherlands
- Cambridge Institute for Music Therapy Research, Anglia Ruskin University, Cambridge, United Kingdom
| | - Arend F. Bos
- Department of Paediatrics, Division of Neonatology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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Scher MS. A Bio-Social Model during the First 1000 Days Optimizes Healthcare for Children with Developmental Disabilities. Biomedicines 2022; 10:3290. [PMID: 36552046 PMCID: PMC9775202 DOI: 10.3390/biomedicines10123290] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/28/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
Most children with developmental disabilities (DD) live in resource-limited countries (LMIC) or high-income country medical deserts (HICMD). A social contract between healthcare providers and families advocates for accurate diagnoses and effective interventions to treat diseases and toxic stressors. This bio-social model emphasizes reproductive health of women with trimester-specific maternal and pediatric healthcare interactions. Lifelong neuronal connectivity is more likely established across 80% of brain circuitries during the first 1000 days. Maladaptive gene-environment (G x E) interactions begin before conception later presenting as maternal-placental-fetal (MPF) triad, neonatal, or childhood neurologic disorders. Synergy between obstetrical and pediatric healthcare providers can reduce neurologic morbidities. Partnerships between healthcare providers and families should begin during the first 1000 days to address diseases more effectively to moderate maternal and childhood adverse effects. This bio-social model lowers the incidence and lessens the severity of sequalae such as DD. Access to genetic-metabolomic, neurophysiologic and neuroimaging evaluations enhances clinical decision-making for more effective interventions before full expression of neurologic dysfunction. Diagnostic accuracy facilitates developmental interventions for effective preschool planning. A description of a mother-child pair in a HIC emphasizes the time-sensitive importance for early interventions that influenced brain health throughout childhood. Partnership by her parents with healthcare providers and educators provided effective healthcare and lessened adverse effects. Effective educational interventions were later offered through her high school graduation. Healthcare disparities in LMIC and HICMD require that this bio-social model of care begin before the first 1000 days to effectively treat the most vulnerable women and children. Prioritizing family planning followed by prenatal, neonatal and child healthcare improves wellness and brain health. Familiarity with educational neuroscience for teachers applies neurologic diagnoses for effective individual educational plans. Integrating diversity and inclusion into medical and educational services cross socioeconomic, ethnic, racial, and cultural barriers with life-course benefits. Families require knowledge to recognize risks for their children and motivation to sustain relationships with providers and educators for optimal outcomes. The WHO sustainable development goals promote brain health before conception through the first 1000 days. Improved education, employment, and social engagement for all persons will have intergenerational and transgenerational benefits for communities and nations.
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Affiliation(s)
- Mark S. Scher
- Pediatrics and Neurology, Rainbow Babies and Children’s Hospital, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA;
- Department of Pediatrics, Division of Pediatric Neurology Fetal/Neonatal Neurology Program, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
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Richardson LS, Emezienna N, Burd I, Taylor BD, Peltier MR, Han A, Menon R. Adapting an organ-on-chip device to study the effect of fetal sex and maternal race/ethnicity on preterm birth related intraamniotic inflammation leading to fetal neuroinflammation. Am J Reprod Immunol 2022; 88:e13638. [PMID: 36308737 PMCID: PMC9712252 DOI: 10.1111/aji.13638] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/23/2022] [Accepted: 10/11/2022] [Indexed: 01/05/2023] Open
Abstract
PROBLEM Fetal neuroinflammation has been linked to preterm birth-related intraamniotic infection and inflammation; However, the contribution of fetal sex and maternal race/ethnicity is unknown. To determine if fetal sex and maternal race/ethnicity influence neuroinflammation, an organ-on-chip (OOC) model were established under normal or pathologic conditions utilizing amniotic fluid. METHOD OF STUDY OOC is composed of two-cell culture chambers connected by Type IV collagen-coated microchannels. Human fetal astroglia (SVGp12) and microglia (HMC3) were co-cultured at an 80:20 ratio in the inner chamber. The outer chamber contained amniotic fluid (AF) from male and female fetuses of White Hispanic (WH) and African-American (AA) pregnant women with or without lipopolysaccharide (LPS-100 ng/ml) and incubated for 48 h. Glial migration (brightfield microscopy), activation (Immunocytochemistry), and cytokine production (Luminex assays) were quantified and compared (N = 4 for each category of sex and race/ethnicity). RESULTS In a pooled analysis, AF+LPS did not induce glial activation or inflammatory changes compared to AF alone. When stratified by sex, male AF+LPS promoted significant glial activation (high CD11b:p < 0.05; low Iba1:p < 0.01) compared to male AF without LPS; however, this was not associated with changes in pro-inflammatory cytokines. When stratified by race/ethnicity, AF+LPS induced glial activation in both groups, but a differential increase in pro-inflammatory cytokines was seen between WH and AA AF (WH-interleukin-1β: p < 0.05; AA-interleukin-8: p < 0.01). CONCLUSION This OOC model of fetal neuroinflammation has determined that race/ethnicity differences do exist for perinatal brain injury. The fetal sex of neonates was not a determining factor of susceptibility to intraamniotic inflammation leading to neuroinflammation.
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Affiliation(s)
- Lauren S. Richardson
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Nkechinyere Emezienna
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Irina Burd
- Integrated Research Center for Fetal Medicine, Johns Hopkin University, Baltimore, Maryland, USA
| | - Brandie D. Taylor
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Morgan R. Peltier
- Department of Psychiatry and Behavioral Health, Hackensack Meridian School of Medicine, Nutley, New Jersey, USA
- Department of Psychiatry and Behavioral Health, Jersey Shore University Medical Center, Neptune, New Jersey, USA
| | - Arum Han
- Department of Electrical and Computer Engineering, Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
| | - Ramkumar Menon
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
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Siahanidou T, Spiliopoulou C. Pharmacological Neuroprotection of the Preterm Brain: Current Evidence and Perspectives. Am J Perinatol 2022; 39:479-491. [PMID: 32961562 DOI: 10.1055/s-0040-1716710] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Despite improvements in viability, the long-term neurodevelopmental outcomes of preterm babies remain serious concern as a significant percentage of these infants develop neurological and/or intellectual impairment, and they are also at increased risk of psychiatric illnesses later in life. The current challenge is to develop neuroprotective approaches to improve adverse outcomes in preterm survivors. The purpose of this review was to provide an overview of the current evidence on pharmacological agents targeting the neuroprotection of the preterm brain. Among them, magnesium sulfate, given antenatally to pregnant women with imminent preterm birth before 30 to 34 weeks of gestation, as well as caffeine administered to preterm infants after birth, exhibited neuroprotective effects for human preterm brain. Erythropoietin treatment of preterm infants did not result in neuroprotection at 2 years of age in two out of three published large randomized controlled trials; however, long-term follow-up of these infants is needed to come to definite conclusions. Further studies are also required to assess whether melatonin, neurosteroids, inhaled nitric oxide, allopurinol, or dietary supplements (omega-3 fatty acids, choline, curcumin, etc.) could be implemented as neuroprotectants in clinical practice. Furthermore, other pharmacological agents showing promising signs of neuroprotective efficacy in preclinical studies (growth factors, hyaluronidase inhibitors or treatment, antidiabetic drugs, cannabidiol, histamine-H3 receptor antagonists, etc.), as well as stem cell- or exosomal-based therapies and nanomedicine, may prove useful in the future as potential neuroprotective approaches for human preterm brain. KEY POINTS: · Magnesium and caffeine have neuroprotective effects for the preterm brain.. · Follow-up of infants treated with erythropoietin is needed.. · Neuroprotective efficacy of several drugs in animals needs to be shown in humans..
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Affiliation(s)
- Tania Siahanidou
- Neonatal Unit of the First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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Zhao Y, Liang L, Liu G, Liu Y, Zheng H, Dai L. The effects of short time hyperoxia on glutamate concentration and glutamate transporters expressions in brain of neonatal rats. Neurosci Lett 2021; 758:136013. [PMID: 34111510 DOI: 10.1016/j.neulet.2021.136013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/27/2021] [Accepted: 06/03/2021] [Indexed: 11/18/2022]
Abstract
Preterm infants often suffer from impaired postnatal brain development, and glutamate excitotoxicity is identified as a pivotal mechanism of hyperoxia-induced neurological abnormality. We aimed to investigate the effect of short time hyperoxia on glutamate homeostasis and glutamate transporters expressions in immature brain. Six-day-old (P6) rat pups were exposed to 80% oxygen for 24 h (the hyperoxia group) or placed in atmospheric air (the control group). The concentrations of glutamate and γ-aminobutyric acid (GABA) in immature cerebrum and cerebellum at P7, P14 and P21 were determined by ELISA. The mRNA levels of glutamate transporters including excitatory amino acid transporter 1 (EAAT1), EAAT2, EAAT3, vesicular glutamate transporter 1 (VGLUT1) and VGLUT2 in brain were determined by qPCR. Glutamate accumulation was induced by hyperoxia both in immature cerebrum and cerebellum at P7 but got gradually attenuated at P14 and P21, as evidenced by the changes of glutamate and GABA concentrations. Hyperoxia also induced sustained glutamatic oxidative stress in both cerebrum and cerebellum, as GSH (reduced glutathione) levels in the hyperoxia group were constantly higher than the control group at three examined time-points. Furthermore, at P7, the expressions of all glutamate transporters decreased in both cerebrum and cerebellum except that of EAAT1. At P21, VGLUT2 in cerebrum and EAAT1, EAAT3 and VGLUT2 in cerebellum still displayed significant decrease in expression levels upon hyperoxia stimulation. Taken together, our results indicate that hyperoxia induces glutamate accumulation in brain of rat pups, which is associated with increased oxidative stress and decreased expressions of glutamate transporters.
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Affiliation(s)
- Yuwei Zhao
- Neonatology Department, Anhui Provincial Children's Hospital, Hefei, China.
| | - Lei Liang
- Pulmonary Department, Anhui Provincial Children's Hospital, Hefei, China
| | - Guanghui Liu
- Neonatology Department, Anhui Provincial Children's Hospital, Hefei, China
| | - Yongqing Liu
- Neonatology Department, Anhui Provincial Children's Hospital, Hefei, China
| | - Hong Zheng
- Neonatology Department, Anhui Provincial Children's Hospital, Hefei, China
| | - Liying Dai
- Neonatology Department, Anhui Provincial Children's Hospital, Hefei, China
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Guo X, Li X, Qi T, Pan Z, Zhu X, Wang H, Dong Y, Yue H, Sun B. A birth population-based survey of preterm morbidity and mortality by gestational age. BMC Pregnancy Childbirth 2021; 21:291. [PMID: 33838659 PMCID: PMC8037918 DOI: 10.1186/s12884-021-03726-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 03/17/2021] [Indexed: 02/06/2023] Open
Abstract
Background Despite 15–17 millions of annual births in China, there is a paucity of information on prevalence and outcome of preterm birth. We characterized the outcome of preterm births and hospitalized preterm infants by gestational age (GA) in Huai’an in 2015, an emerging prefectural region of China. Methods Of 59,245 regional total births, clinical data on 2651 preterm births and 1941 hospitalized preterm neonates were extracted from Huai’an Women and Children’s Hospital (HWCH) and non-HWCH hospitals in 2018–2020. Preterm prevalence, morbidity and mortality rates were characterized and compared by hospital categories and GA spectra. Death risks of preterm births and hospitalized preterm infants in the whole region were analyzed with multivariable Poisson regression. Results The prevalence of extreme, very, moderate, late and total preterm of the regional total births were 0.14, 0.53, 0.72, 3.08 and 4.47%, with GA-specific neonatal mortality rates being 44.4, 15.8, 3.7, 1.5 and 4.3%, respectively. There were 1025 (52.8% of whole region) preterm admissions in HWCH, with significantly lower in-hospital death rate of inborn (33 of 802, 4.1%) than out-born (23 of 223, 10.3%) infants. Compared to non-HWCH, three-fold more neonates in HWCH were under critical care with higher death rate, including most extremely preterm infants. Significantly all-death risks were found for the total preterm births in birth weight < 1000 g, GA < 32 weeks, amniotic fluid contamination, Apgar-5 min < 7, and birth defects. For the hospitalized preterm infants, significantly in-hospital death risks were found in out-born of HWCH, GA < 32 weeks, birth weight < 1000 g, Apgar-5 min < 7, birth defects, respiratory distress syndrome, necrotizing enterocolitis and ventilation, whereas born in HWCH, antenatal glucocorticoids, cesarean delivery and surfactant use decreased the death risks. Conclusions The integrated data revealed the prevalence, GA-specific morbidity and mortality rate of total preterm births and their hospitalization, demonstrating the efficiency of leading referral center and whole regional perinatal-neonatal network in China. The concept and protocol should be validated in further studies for prevention of preterm birth. Supplementary Information The online version contains supplementary material available at 10.1186/s12884-021-03726-4.
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Affiliation(s)
- Xiaojing Guo
- The NCH Key Laboratory of Neonatal Diseases, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, 201102, China
| | - Xiaoqiong Li
- Department of Obstetrics, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China
| | - Tingting Qi
- Department of Obstetrics, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China
| | - Zhaojun Pan
- Department of Neonatology and Unit of Population Health Information, Huai'an Women and Children's Hospital, 104 South Ren Min Road, Huai'an, 223002, Jiangsu, China
| | - Xiaoqin Zhu
- Unit of Population Health Information, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China
| | - Hui Wang
- Unit of Population Health Information, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China
| | - Ying Dong
- The NCH Key Laboratory of Neonatal Diseases, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, 201102, China
| | - Hongni Yue
- Department of Neonatology and Unit of Population Health Information, Huai'an Women and Children's Hospital, 104 South Ren Min Road, Huai'an, 223002, Jiangsu, China. .,Unit of Population Health Information, Huai'an Women and Children's Hospital, Huai'an, 223002, Jiangsu, China.
| | - Bo Sun
- The NCH Key Laboratory of Neonatal Diseases, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, 201102, China.
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Dunbar MJ, Woodward K, Leijser LM, Kirton A. Antenatal diagnosis of fetal intraventricular hemorrhage: systematic review and meta-analysis. Dev Med Child Neurol 2021; 63:144-155. [PMID: 33094492 DOI: 10.1111/dmcn.14713] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/18/2020] [Indexed: 12/29/2022]
Abstract
AIM To determine how the severity of antenatally diagnosed germinal matrix-intraventricular hemorrhage (GMH-IVH) relates to morbidity and mortality, and to explore potential risk factors. METHOD We conducted a systematic review and individual patient data meta-analysis of antenatally diagnosed fetal GMH-IVH. The primary outcomes were mortality and morbidity. Potential associations with clinical factors during pregnancy were explored. Analysis employed Fisher's exact test and logistic regression. RESULTS We included 240 cases from 80 studies. Presence of venous infarction was associated with mortality (odds ratio [OR] 4.3, 95% confidence interval [CI] 1.4-13.25), motor impairment (OR 103.2, 95% CI 8.6-1238), epilepsy (OR 6.46, 95% CI 2.64-16.06), and developmental delay (OR 8.55, 95% CI 2.12-48.79). Shunt placement was associated with gestational age at GMH-IVH diagnosis and in utero progression. Many cases had uncomplicated pregnancies but possible co-occurring conditions included twin gestation, small for gestational age, and congenital anomalies. INTERPRETATION Severity of fetal GMH-IVH, specifically venous infarction, is associated with overall mortality and morbidity. Risk factors for fetal GMH-IVH are poorly understood and controlled studies are required. WHAT THIS PAPER ADDS Preterm germinal matrix-intraventricular hemorrhage (GMH-IVH) grading can be applied to fetuses. Many fetal germinal matrix hemorrhages occur in otherwise typical pregnancies. Half of fetuses with post-hemorrhagic ventricular dilatation receive a shunt after delivery. Fetuses with grade I or II GMH-IVH have few sequelae. Fetuses with periventricular hemorrhagic infarction have a high burden of motor impairment.
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Affiliation(s)
- Mary J Dunbar
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Pediatrics, Section of Neurology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Clinician Investigator Program, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kristine Woodward
- Department of Pediatrics, Section of Neurology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Lara M Leijser
- Department of Pediatrics, Section of Neonatology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | - Adam Kirton
- Department of Pediatrics, Section of Neurology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,Department of Radiology, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada
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10
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Lien R. Author reply to letter to editor "melatonin as fetal neuroprotection: Links and risks". Biomed J 2020; 43:498. [PMID: 33293251 PMCID: PMC7804175 DOI: 10.1016/j.bj.2020.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Reyin Lien
- Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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Jiang ZD, Wang C, Ping LL. Brainstem auditory pathway function at four months of corrected postnatal age in preterm infants born below 30 week gestation. Brain Dev 2020; 42:496-502. [PMID: 32336484 DOI: 10.1016/j.braindev.2020.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 04/03/2020] [Accepted: 04/09/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Functional status of the brainstem auditory pathway was examined at four months of corrected postnatal age in infants born below 30 week gestation to assess the effect of very or extremely preterm birth on postnatal development of the pathway. METHODS Thirty-four preterm infants born at 24-29 week gestation (GA24-29w) were studied at four months of corrected postnatal age. Normal controls were 38 postnatal age-matched term infants. Maximum length sequence brainstem auditory evoked response (MLS BAER) were recorded and analysed with 60 dB nHL clicks. RESULTS Compared with term control group, GA24-29w group manifested higher BAER threshold (p < 0.05), longer MLS BAER wave latencies at all click rates 91-910/s (p < 0.01-0.001), and lower wave amplitudes at most click rates (p < 0.05-0.01). No significant differences were found between the two groups in I-V interval at any click rates. I-III interval was shorter while III-V interval was longer in GA24-29w group than in term group at higher rates (all p < 0.05). III-V/I-III interval ratio in GA24-29w group was greater at 455 and 910/s clicks (p < 0.05 and 0.01). These interval variables showed similar changes when 4 GA24-29w infants with threshold elevation were excluded. CONCLUSIONS At four months of corrected postnatal age, infants born below 30 week gestation manifested elevated BAER threshold, increased wave latencies, and reduced amplitude. They also manifested a small decrease in I-III interval but a small increase in III-V interval at high rates. Very or extremely preterm birth exerts a mild or moderate effect on postnatal development of the brainstem auditory pathway.
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Affiliation(s)
- Ze Dong Jiang
- Division of Neonatology, Children's Hospital of Fudan University, 399 Wan Yuan Road, Shanghai, China.
| | - Cui Wang
- Division of Neonatology, Children's Hospital of Fudan University, 399 Wan Yuan Road, Shanghai, China
| | - Li Li Ping
- Division of Neonatology, Children's Hospital of Fudan University, 399 Wan Yuan Road, Shanghai, China; Department of Neonatology, Han Dan Central Hospital, Hebei, China
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