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OBJECTIVE: To investigate the effect of physical activity (PA) on development (motor, cognitive, social-emotional) in children 4-5 years old born <30 weeks' gestation, and to describe subgroups of children at risk of low PA in this cohort. DESIGN: Longitudinal cohort study. PATIENTS: 123 children born <30 weeks were recruited at birth and assessed between 4 and 5 years' corrected age. MAIN OUTCOME MEASURES: Development was assessed using the Movement Assessment Battery for Children, Second Edition (MABC-2), Little Developmental Coordination Disorder Questionnaire (L-DCDQ), Wechsler Preschool and Primary Scale of Intelligence (Fourth Edition; WPPSI-IV), and Strengths and Difficulties Questionnaire (SDQ). To measure PA, children wore an accelerometer and parents completed a diary for 7 days. Effects of PA on developmental outcomes, and associations between perinatal risk factors and PA, were estimated using linear regression. RESULTS: More accelerometer-measured PA was associated with better MABC-2 aiming and catching scores (average standard score increase per hour increase in PA: 0.54, 95% CI 0.11, 0.96; p=0.013), and lower WPPSI-IV processing speed index scores (average composite score decrease per hour increase in PA: -2.36, 95% CI -4.19 to -0.53; p=0.012). Higher accelerometer-measured PA was associated with better SDQ prosocial scores. Major brain injury in the neonatal period was associated with less moderate-vigorous and less unstructured PA at 4-5 years. CONCLUSIONS: Higher levels of PA are associated with aspects of motor, cognitive and social-emotional skill development in children 4-5 years old born <30 weeks. Those with major brain injury in the neonatal period may be more vulnerable to low PA at preschool age.
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OBJECTIVE: To compare transition into adulthood of survivors born extremely preterm (EP; <28 weeks' gestation) or extremely low birth weight (ELBW; <1000 g) in the postsurfactant era with term-born controls. METHODS: Prospective longitudinal cohort study of all EP/ELBW survivors born in the State of Victoria, Australia between January 1, 1991 and December 31, 1992 and matched term-born controls. Outcomes include educational attainment, employment, financial status, romantic partnering, living arrangements, parenthood, physical health and mental health, risk-taking behaviors, life satisfaction, and interpersonal relationships at 25 years. RESULTS: Data were available from 165 EP/ELBW and 127 control participants. Overall, there was little evidence for differences between the EP/ELBW and control groups on most comparisons after adjustment for social risk and multiple births. However, compared with controls, the EP/ELBW group was more likely to have their main source of income from government (adjusted odds ratio [aOR] 2.49, 95% confidence interval [CI] 1.21-5.13; P = .01) and to have never moved out of the parental home (aOR 2.13, 95% CI 1.27-3.58; P = .01), and fewer had ever engaged in smoking (aOR 0.52, 95% CI 0.28-0.98; P = .04), binge drinking (aOR 0.41, 95% CI 0.18-0.93; P = .03), or street drugs (aOR 0.56, 95% CI 0.32-0.98; P = .04). CONCLUSIONS: Aside from clinically important differences in main income source, leaving the parental home, and reduced risk-taking behavior, survivors born EP/ELBW in the era since surfactant was introduced are transitioning into adulthood similarly to term-born controls in some areas assessed but not all.
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Recém-Nascido de Peso Extremamente Baixo ao Nascer , Lactente Extremamente Prematuro , Recém-Nascido , Humanos , Estudos Longitudinais , Estudos Prospectivos , Sobreviventes , Vitória/epidemiologiaRESUMO
OBJECTIVE: Describe the intelligence quotient (IQ) of children with Pierre Robin sequence (PRS). DESIGN: Prospective cohort study. SETTING: Neurodevelopmental follow-up clinic within a hospital. PATIENTS: Children with PRS (n = 45) who had been in the Neonatal Intensive Care Unit (NICU) were classified by a geneticist into 3 subgroups of isolated PRS (n = 20), PRS-plus additional medical features (n = 8), and syndromic PRS (n = 17) based on medical record review and genetic testing. MAIN OUTCOME MEASURE: Children with PRS completed IQ testing at 5 or 8 years of age with the Wechsler Preschool and Primary Scale of Intelligence, Third Edition (WPPSI-III) or Fourth Edition (WPPSI-IV) or the Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV) or Fifth Edition (WISC-V). RESULTS: IQ scores were more than 1 to 2 standard deviations below the mean for 36% of the overall sample, which was significantly greater compared to test norms (binomial test P = .001). There was a significant association between PRS subtype and IQ (Fisher's exact P = .026). While only 20% of children with isolated PRS were within 1 standard deviation below average and 35% of children with syndromic PRS were below 1 to 2 standard deviations, 75% of PRS-plus children scored lower than 1 to 2 standard deviations below the mean. CONCLUSION: PRS subgroups can help identify children at risk for cognitive delay. The majority of children with PRS-plus had low intellectual functioning, in contrast to the third of children with syndromic PRS who had low IQ and the majority of children with isolated PRS who had average or higher IQ.
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Síndrome de Pierre Robin , Pré-Escolar , Recém-Nascido , Humanos , Criança , Estudos Prospectivos , Escalas de Wechsler , CogniçãoRESUMO
AIM: To examine the relationship between motor performance and attention in children born very preterm and at term, and investigate the presence of individual profiles of motor and attention performance. METHOD: Attention and motor performance at 7 and 13 years were assessed in 197 children born very preterm (52.5% male) and 69 children born at term (47.8% male) between 2001 and 2003. Linear regression models were fitted including an interaction term for birth group. Subgroups of children with similar attention and motor performance profiles were identified using latent profile analysis. RESULTS: Balance was positively associated with all attention outcomes at both ages (p < 0.006). There were specific birth group interactions for aiming and catching and manual dexterity with attention at 13 years, with positive associations observed only for children born very preterm (p < 0.001). At 7 years, three profiles were observed: average attention and motor functioning; average motor functioning and low attention functioning; and low attention and motor functioning. At 13 years, two profiles of average attention and motor functioning emerged, as well as one profile of below-average attention and motor functioning. Children born very preterm were overrepresented in the lower functioning profiles (born very preterm 56%; born at term 29%). INTERPRETATION: Motor functioning at age 7 years may be a useful marker of later attention skills, particularly for children born very preterm who are at greater risk of poorer long-term cognitive outcomes. WHAT THIS PAPER ADDS: Balance was positively associated with attention in children born very preterm and at term. Relationships between motor performance and attention at age 13 years differed between children born very preterm and at term. Heterogeneous motor functioning and attention outcomes were noted for children born very preterm and at term. Children born very preterm were more likely to have lower attention and motor functioning profiles than children born at term. There was greater movement in motor functioning and attention profiles between the ages of 7 and 13 years in children born very preterm.
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Desenvolvimento Infantil , Lactente Extremamente Prematuro , Recém-Nascido , Criança , Humanos , Masculino , Adolescente , Feminino , Atenção , Testes NeuropsicológicosRESUMO
OBJECTIVES: To compare health-related quality of life (HRQoL) at 25 and 18 years in individuals born extremely preterm (EP, <28 weeks' gestation) or with extremely low birth weight (ELBW, birth weight <1000 g) with term-born (≥37 weeks) controls. Within the EP/ELBW cohort, to determine whether HRQoL differed between those with lower and higher IQs. METHODS: HRQoL was self-reported using the Health Utilities Index Mark 3 (HUI3) at 18 and 25 years by 297 EP/ELBW and 251 controls born in 1991-1992 in Victoria, Australia. Median differences (MDs) between groups were estimated using multiple imputation to handle missing data. RESULTS: Adults born EP/ELBW had lower HRQoL (median utility 0.89) at 25 years than controls (median utility 0.93, MD -0.040), but with substantial uncertainty in the estimate (95% CI -0.088 to 0.008) and a smaller reduction at 18 years (MD -0.016, 95% CI -0.061 to 0.029). On individual HUI3 items, there was suboptimal performance on speech (OR 9.28, 95% CI 3.09 to 27.93) and dexterity (OR 5.44, 95% CI 1.04 to 28.45) in the EP/ELBW cohort. Within the EP/ELBW cohort, individuals with lower IQ had lower HRQoL compared with those with higher IQ at 25 (MD -0.031, 95% CI -0.126 to 0.064) and 18 years (MD -0.034, 95% CI -0.107 to 0.040), but again with substantial uncertainty in the estimates. CONCLUSIONS: Compared with term-born controls, young adults born EP/ELBW reported poorer HRQoL, as did those with lower IQ compared with those with higher IQ in the EP/ELBW cohort. Given the uncertainties, our findings need corroboration.
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Recém-Nascido de Peso Extremamente Baixo ao Nascer , Lactente Extremamente Prematuro , Recém-Nascido , Adulto Jovem , Feminino , Humanos , Adulto , Estudos Longitudinais , Qualidade de Vida , Estudos de Coortes , Vitória/epidemiologiaRESUMO
Attention deficits are common in children born very preterm (VP), especially for children with higher social risk. The aim of this study was to examine the association between parenting behavior and attention in children born VP, and whether this association is influenced by familial social risk. Two hundred and twenty-four children born <30 weeks' gestation and/or with a birth weight <1250 g were recruited at birth. At 2 years, social risk was calculated and parenting behaviors were observed during a parent-child interaction task, with children's attention skills assessed at 7 and 13 years using standardized assessments. Higher levels of sensitive parenting at 2 years were positively associated with divided attention at age 7 years, and higher levels of intrusive parenting were negatively associated with divided attention at 13 years. Children born VP with higher social risk were more positively influenced by sensitive parenting behavior for sustained attention at 7 years, selective attention at 13 years, and divided attention at 7 and 13 years than children born VP with lower social risk. Additionally, children born VP with higher social risk were more negatively influenced by intrusive parenting for sustained attention outcomes at 7 years than those with lower social risk. In summary, the evidence for a contribution of early parenting to attention outcomes in children born VP was stronger for more complex attention (divided attention) compared with basic attention domains. Our findings also suggest that early parenting behavior has a particular influence on children born VP from socially disadvantaged environments for attention outcomes.
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Lactente Extremamente Prematuro , Poder Familiar , Criança , Recém-Nascido , Humanos , Idade Gestacional , Relações Pais-Filho , Desenvolvimento Infantil , Recém-Nascido de muito Baixo PesoRESUMO
OBJECTIVES: Children born very preterm (VP) are susceptible to a range of cognitive impairments, yet the effects of VP birth on long-term, episodic, and prospective memory remains unclear. This study examined episodic and prospective memory functioning in children born VP compared with their term-born counterparts at 13 years. METHOD: VP (n = 81: born <30 weeks' gestation) and term (n = 26) groups were aged between 12 and 14 years. Children completed: (i) standardized verbal and visuospatial episodic memory tests; and (ii) an experimental time- and event-based prospective memory test that included short-term (within assessment session) and long-term (up to 1-week post-session) tasks. Parents completed a questionnaire assessing memory functions in everyday life. RESULTS: The VP group performed worse on all measures of verbal and visuospatial episodic memory than the term group. While there were no group differences in event-based or long-term prospective memory, the VP group performed worse on time-based and short-term prospective memory tasks than term-born counterparts. Parents of children born VP reported more everyday memory difficulties than parents of children born at term, with parent-ratings indicating significantly elevated rates of everyday memory challenges in children born VP. CONCLUSIONS: Children born VP warrant long-term surveillance, as challenges associated with VP birth include memory difficulties at 13 years. This study highlights the need for greater research and clinical attention into childhood functional memory outcomes.
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Lactente Extremamente Prematuro , Memória Episódica , Recém-Nascido , Humanos , Criança , Adolescente , Memória de Curto Prazo , Idade Gestacional , AtençãoRESUMO
BACKGROUND: For infants born in the contemporary era of neonatal care, little is known about adult mental health outcomes of extremely preterm birth (EP; <28 weeks' gestation) or extremely low birthweight (ELBW; <1000 g). This study aimed to compare attention deficit hyperactivity disorder (ADHD), anxiety, mood, and substance use disorder prevalence in young adults born EP/ELBW and normal birthweight (NBW; >2499 g) controls, and to compare change in prevalence of mental health symptoms and disorders from 18 to 25 years. METHODS: Participants were a prospective geographical cohort of 297 consecutive survivors born EP/ELBW during 1991-1992 and 260 NBW controls. At age 25 years, 174 EP/ELBW and 139 NBW participants completed the Adult ADHD Rating Scale, Structured Clinical Interview for DSM-IV Disorders, Beck Anxiety Inventory, and Center for Epidemiologic Studies Depression Scale-Revised. Data from follow-up at 18 years were also utilized. Multiple imputation was used to account for attrition. RESULTS: Mental health outcomes at 25 years were similar between groups: prevalence rates were ADHD 7% v. 5%; anxiety 32% v. 27%; mood 38% v. 35%; substance use 12% v. 14% in the EP/ELBW and NBW groups, respectively. In both groups, ADHD declined between 18 and 25 years [odds ratio (OR) per year = 0.87, 95% confidence interval (CI) 0.79-0.95], and generalized anxiety disorder and major depressive episode became more common (OR 1.22, 95% CI 1.10-1.35 per year; OR 1.20, 95% CI 1.10-1.30 respectively). CONCLUSIONS: This contemporary EP/ELBW cohort has comparable young adult mental health outcomes to controls, and similar patterns of change in mental health from late adolescence.
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Transtorno Depressivo Maior , Nascimento Prematuro , Lactente , Feminino , Adolescente , Humanos , Recém-Nascido , Adulto Jovem , Adulto , Recém-Nascido de Peso Extremamente Baixo ao Nascer/psicologia , Lactente Extremamente Prematuro , Saúde Mental , Terapia Intensiva Neonatal , Estudos ProspectivosRESUMO
Very preterm birth (VP; <32 weeks' gestation) is associated with altered brain gray matter development and lower math ability. In typically developing children, the neural correlates of math ability may change dynamically with age, though evidence in VP children is limited. In a prospective longitudinal cohort of children born VP and full term (FT), we aimed to investigate associations between 1) concurrent regional brain volumes and math ability at 7 (n = 148 VP; n = 34 FT) and 13-years (n = 130 VP; n = 46 FT), and 2) regional volumetric growth across childhood (term-equivalent age (TEA) to 7-years; 7 to 13-years) and math ability from 7 to 13-years, and improvement in ability from 7 to 13 years. For both aims we investigated whether associations differed between birth groups. Cross-sectionally, frontal, temporal and subcortical regional volumes were positively associated with math ability for both birth groups. For FT children, greater growth of specific temporal regions was associated with higher math ability, and greater improvements. For VP children, similar associations were only observed for growth from TEA to 7-years with 13-year ability and improvements in ability. In conclusion, VP birth appears to alter associations of brain development across the first 13 years with childhood math ability.
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Substância Cinzenta , Nascimento Prematuro , Encéfalo/diagnóstico por imagem , Criança , Feminino , Substância Cinzenta/diagnóstico por imagem , Humanos , Lactente Extremamente Prematuro , Recém-Nascido , Imageamento por Ressonância Magnética , Estudos ProspectivosRESUMO
OBJECTIVE: To evaluate 13-year outcomes of a randomized controlled trial of preventive care (VIBeS Plus) for infants born very preterm and their parents and examine whether possible effects of intervention varied by family social risk. STUDY DESIGN: Families were randomized to an intervention arm (n = 61) or a standard care arm (n = 59). The intervention was delivered at home by psychologists and physiotherapists over the infants' first year, focusing on infant development and parental mental health. At 13 years corrected age, cognitive, motor, and behavioral outcomes, and parental mental health were assessed. Primary estimands were between-group mean differences, estimated using multiple imputed regression models. RESULTS: Follow-up included 81 surviving children (69%). There was little evidence of benefits of the intervention for IQ, attention, executive functioning, working memory, and academic skills regardless of level of social risk. Specifically, mean differences in adolescent cognitive outcomes ranged from -2.0 units (95% CI, -9.9 to 5.9) in favor of standard treatment to 5.1 units (95% CI, -2.3 to 12.5) favoring the intervention. A group-by-social risk interaction was observed only for adolescent motor outcomes, with mean differences favoring the intervention for those at higher social risk (balance, 4.9; 95% CI, 1.3-8.5; total motor, 3.2; 95% CI, 0.3-6.2), but not those at lower social risk (balance, -0.3; 95% CI, -2.4 to 1.9; total motor, 0.03; 95% CI, -1.9 to 2.0). Mean differences in adolescent behavior and parental mental health ranged from -6.6 (95% CI -13.8, 0.5) to -0.2 (95% CI, -1.9 to 1.4) and -1.8 (95% CI, -4.1 to 0.6) to -1.7 (95% CI, -4.3 to 1.0), respectively, indicating a pattern of fewer symptoms in the intervention group. CONCLUSIONS: Benefits of the intervention persisted for adolescent behavior, with better motor outcomes observed in those from socially disadvantaged families. Replication with larger samples, multiple informant reports, and assessment of quality of life-related outcomes is warranted. TRIAL REGISTRATION: http://www.anzctr.org.au/: ACTRN12605000492651.
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Doenças do Prematuro , Recém-Nascido Prematuro , Adolescente , Criança , Desenvolvimento Infantil , Feminino , Retardo do Crescimento Fetal , Humanos , Lactente , Recém-Nascido , Doenças do Prematuro/prevenção & controle , Pais/psicologia , Qualidade de VidaRESUMO
OBJECTIVE: The objective of this study was to determine whether school readiness differs between children born <30 weeks' gestation who are classified as at risk for developmental coordination disorder (DCD) and those who are not. METHODS: This study was a prospective cohort study of children born <30 weeks' gestation. Children were classified as at risk for DCD at a corrected age of 4 to 5 years if they scored <16th centile on the Movement Assessment Battery for Children-Second Edition (MABC-2), had a full scale IQ score of ≥80 on the Wechsler Preschool and Primary Scale of Intelligence-Fourth Edition (WPPSI-IV), and had no cerebral palsy. Children were assessed on 4 school readiness domains: (1) health/physical development [Physical Health domain of Pediatric Quality of Life Inventory (PedsQL), Pediatric Evaluation of Disability Inventory Computer Adaptive Test, and Little Developmental Coordination Disorder Questionnaire], (2) social-emotional development (Strengths and Difficulties Questionnaire and PedsQL psychosocial domains), (3) cognitive skills/general knowledge (WPPSI-IV), and (4) language skills (WPPSI-IV). RESULTS: Of 123 children assessed, 16 were ineligible (IQ < 80 or cerebral palsy: n = 15; incomplete MABC-2: n = 1); 28 of 107 (26%) eligible children were at risk for DCD. Children at risk for DCD had poorer performance on all school readiness domains, with group differences of more than 0.4 SD in health/physical development, social-emotional development, and language skills and up to 0.8 SD for cognitive skills/general knowledge compared with those not at risk of DCD. CONCLUSION: Being at risk for DCD in children born <30 weeks' gestation is associated with challenges in multiple school readiness domains, not only the health/physical domain.
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Paralisia Cerebral , Transtornos das Habilidades Motoras , Criança , Pré-Escolar , Feminino , Idade Gestacional , Humanos , Transtornos das Habilidades Motoras/epidemiologia , Gravidez , Estudos Prospectivos , Qualidade de Vida , Instituições AcadêmicasRESUMO
In Australia, approximately 18% of newborn babies are admitted to a neonatal intensive or special care nursery. While most babies admitted to a neonatal intensive or special care nursery are discharged home within a few weeks, around 6% of babies spend more than 2 weeks in hospital. For the parents of these babies, much of their leave entitlements (Australian Government Paid Parental Leave Scheme is up to18 weeks for the primary care giver and up to 2 weeks for partners) are used before their baby comes home from hospital. The time babies and parents spend together in the early developmental period, during the hospitalisation and when the baby is discharged home, is crucial for optimal child development and bonding. Yet care givers who have a baby admitted to neonatal intensive or special care for extended periods are not currently entitled to any extra parental leave payments in Australia. We recommend the Australian Paid Parental Leave Act is changed to allow primary carers access to 1 week of extra parental leave pay for every week in hospital (for babies admitted to hospital for more than 2 weeks), up to a maximum of 14 weeks. For fathers and partners of these babies, we recommend an additional 2 weeks of extra Dad and Partner Pay. The net cost, taking into account likely productivity benefits, would be less than 1.5% of the current cost of the scheme and would improve health and socio-economic outcomes for the baby, family and society.
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Licença Parental , Pais , Austrália , Humanos , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Alta do PacienteRESUMO
BACKGROUND: Data on psychiatric disorders in survivors born very preterm (VP; <32 weeks) or very low birthweight (VLBW; <1500 g) are sparse. We compared rates of psychiatric diagnoses between VP/VLBW and term-born, normal birthweight (term/NBW) control participants. METHODS: This individual participant data (IPD) meta-analysis pooled data from eligible groups in the Adults born Preterm International Collaboration (APIC). Inclusion criteria included: 1) VP/VLBW group (birth weight <1500 g and/or gestational age <32 weeks), 2) normal birth weight/term-born control group (birth weight >2499 g and/or gestational age ≥37 weeks), and 3) structured measure of psychiatric diagnoses using DSM or ICD criteria. Diagnoses of interest were Attention Deficit Hyperactivity Disorder (ADHD), Autism Spectrum Disorder (ASD), Anxiety Disorder, Mood Disorder, Disruptive Behaviour Disorder (DBD), Eating Disorder, and Psychotic Disorder. A systematic search for eligible studies was conducted (PROSPERO Registration Number 47555). FINDINGS: Data were obtained from 10 studies (1385 VP/VLBW participants, 1780 controls), using a range of instruments and approaches to assigning diagnoses. Those born VP/VLBW had ten times higher odds of meeting criteria for ASD (odds ratio [OR] 10·6, 95% confidence interval [CI] 2·50, 44·7), five times higher odds of meeting criteria for ADHD (OR 5·42, 95% CI 3·10, 9·46), twice the odds of meeting criteria for Anxiety Disorder (OR 1·91, 95% CI 1·36, 2·69), and 1·5 times the odds of meeting criteria for Mood Disorder (OR 1·51, 95% CI 1·08, 2·12) than controls. This pattern of findings was consistent within age (<18 years vs. ≥18 years) and sex subgroups. INTERPRETATION: Our data suggests that individuals born VP/VLBW might have higher odds of meeting criteria for certain psychiatric disorders through childhood and into adulthood than term/NBW controls. Further research is needed to corroborate our results and identify factors associated with psychiatric disorders in individuals born VP/VLBW. FUNDING: Australia's National Health & Medical Research Council; CAPES (Coordenação de Aperfeiçoamento de Pessoal deNível Superior) - International Cooperation General Program; Canadian Institutes of Health Research Team Grant; National Council for Scientific and Technological Development (CNPq); Academy of Finland; Sigrid Juselius Foundation; Signe and Ane Gyllenberg Foundation; European Union's Horizon 2020 research and innovation programme: Project RECAP-Preterm; European Commission Dynamics of Inequality Across the Life-course: structures and processes (DIAL); Neurologic Foundation of New Zealand; MRC programme grant; Health Research Council of New Zealand; National Institutes of Health, USA; The Research Council of Norway; Joint Research Committee between St. Olavs Hospital and Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU); Liaison Committee between Central Norway Regional Health Authority and NTNU.
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OBJECTIVE: Neonatal conditions can have lifelong implications for the health and well-being of children and families. Traditionally, parents and patients have not been included in shaping the agenda for research and yet they are profoundly affected by the neonatal experience and its consequences. This study aimed to identify consensus research priorities among parents/patients of newborn medicine in Australia and New Zealand. DESIGN: Parents/patients with experience of neonatal care in Australia and New Zealand completed an online Delphi study to identify research priorities across four epochs (neonatal admission, early childhood, childhood/adolescence and adulthood). Parents/patients first generated key challenges in each of these epochs. Through inductive thematic analysis, recurring topics were identified and research questions generated. Parents/patients rated these questions in terms of priorities and a list of questions consistently rated as high priority was identified. PARTICIPANTS: 393 individuals participated, 388 parents whose children had received neonatal care and 5 adults who had received neonatal care themselves. RESULTS: Many research questions were identified as high-priority across the lifespan. These included how to best support parental mental health, relationships between parents and neonatal clinical staff (including involvement in care and communication), bonding and the parent-child relationship, improving neonatal medical care and addressing long-term impacts on child health and neurodevelopment. CONCLUSIONS: Parents with experience of newborn medicine have strong, clear and recurring research priorities spanning neonatal care practices, psychological and other impacts on families, and impacts on child development. These findings should guide neonatal research efforts. In addition to generating new knowledge, improved translation of existing evidence to parents is also needed.
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Relações Pais-Filho , Pais , Adolescente , Adulto , Pré-Escolar , Comunicação , Técnica Delphi , Humanos , Recém-Nascido , PesquisaRESUMO
Extremely preterm birth is associated with increased risk for a spectrum of neurodevelopmental problems. This review describes the nature of cognitive and academic outcomes of extremely preterm survivors across childhood and adolescence. Evidence across meta-analyses and large prospective birth cohorts indicate that early developmental difficulties in children born extremely preterm do not resolve with age and are not improving over time despite advancements in neonatal care. While extremely preterm birth confers increased risk of widespread cognitive difficulties, considerable heterogeneity in outcomes is evident across individuals. There is a continued need for high-quality longitudinal studies to understand the developmental progression of cognitive and academic skills following extremely preterm birth, and greater focus on understanding contributing factors that may help to explain the individual variability in cognitive and academic outcomes of extremely preterm survivors.
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Lactente Extremamente Prematuro , Nascimento Prematuro , Coorte de Nascimento , Criança , Cognição , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Nascimento Prematuro/epidemiologia , Estudos ProspectivosRESUMO
Children born very preterm (VPT; <32 weeks' gestation) have alterations in brain white matter and poorer math ability than full-term (FT) peers. Diffusion-weighted magnetic resonance imaging studies suggest a link between white matter microstructure and math in VPT and FT children, although longitudinal studies using advanced modelling are lacking. In a prospective longitudinal cohort of VPT and FT children we used Fixel-Based Analysis to investigate associations between maturation of white matter fibre density (FD), fibre-bundle cross-section (FC), and combined fibre density and cross-section (FDC) and math computation ability at 7 (n = 136 VPT; n = 32 FT) and 13 (n = 130 VPT; n = 44 FT) years, as well as between change in white matter and math computation ability from 7 to 13 years (n = 103 VPT; n = 21 FT). In both VPT and FT children, higher FD, FC and FDC in visual, sensorimotor and cortico-thalamic/thalamo-cortical white matter tracts were associated with better math computation ability at 7 and 13 years. Longitudinally, accelerated maturation of the posterior body of the corpus callosum (FDC) was associated with greater math computation development. White matter-math associations were similar for VPT and FT children. In conclusion, white matter maturation is associated with math computation ability across late childhood, irrespective of birth group.
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Substância Branca , Criança , Desenvolvimento Infantil , Imagem de Difusão por Ressonância Magnética , Humanos , Lactente Extremamente Prematuro , Recém-Nascido , Estudos Prospectivos , Substância Branca/diagnóstico por imagemRESUMO
INTRODUCTION: Children born moderate to late preterm (MLP, 32-36 weeks' gestation) account for approximately 85% of all preterm births globally. Compared with children born at term, children born MLP are at increased risk of poor neurodevelopmental outcomes. Despite making up the largest group of preterm children, developmental outcomes of children born MLP are less well studied than in other preterm groups. This study aimed to (1) compare neurodevelopmental, respiratory health and brain magnetic resonance imaging (MRI) outcomes between children born MLP and term at 9 years of age; (2) examine the differences in brain growth trajectory from infancy to 9 years between children born MLP and term; and in children born MLP; (3) examine the relationship between brain development and neurodevelopment at 9 years; and (4) identify risk factors for poorer outcomes at 9 years. METHODS AND ANALYSIS: The "LaPrem" (Late Preterm MRI Study) study is a longitudinal cohort study of children born MLP and term controls, born at the Royal Women's Hospital in Melbourne, Australia, between 2010 and 2013. Participants were recruited in the neonatal period and were previously followed up at 2 and 5 years. This 9-year school-age follow-up includes neuropsychology, motor and physical activities, and lung function assessments, as well as brain MRI. Outcomes at 9 years will be compared between birth groups using linear and logistic regressions. Trajectories of brain development will be compared between birth groups using mixed effects models. The relationships between MRI and neurodevelopmental outcomes, as well as other early predictors of poor 9-year outcomes, will be explored using linear and logistic regression. ETHICS AND DISSEMINATION: This study was approved by the human research ethics committee at the Royal Children's Hospital, Melbourne, Australia. Study outcomes will be disseminated through peer-reviewed publications, conference presentations and social media.
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Encéfalo , Pneumopatias , Nascimento Prematuro , Austrália/epidemiologia , Encéfalo/diagnóstico por imagem , Encéfalo/crescimento & desenvolvimento , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Humanos , Recém-Nascido , Estudos Longitudinais , Pneumopatias/etiologia , Gravidez , Nascimento Prematuro/epidemiologia , Estudos Prospectivos , Instituições AcadêmicasRESUMO
PURPOSE: To characterize cognitive, academic, and behavioral functioning in children who underwent neonatal surgical repair of esophageal atresia (OA) and compare outcomes according to clinical characteristics (presence of additional congenital anomalies, longer hospitalization, and prematurity). METHODS: Intellectual, language, attention, and executive functioning were assessed in 71 5-year-olds and 72 8-year-olds born with OA. At 8 years, memory and academic skills were also assessed. Parents rated children's executive functioning and behavior via questionnaires. Outcomes were compared to normative data and within subgroups of the sample. RESULTS: Intellectual functioning varied depending on the assessment tool, with some evidence of lower than expected intellectual development in children with OA. At 5 years, children with OA showed age-appropriate language and self-regulation, but reduced verbal attention. At 8 years, the OA group had lower than expected sustained attention, divided attention, and mathematics but typical memory and literacy. Parents consistently reported increased working memory difficulties. Other executive functioning and behavioral symptoms were transiently observed. Findings did not consistently differ according to clinical characteristics. CONCLUSIONS: Children with OA may be at risk of transient and persisting cognitive difficulties, particularly in attention and working memory. Difficulties were not strongly associated with additional congenital anomalies, longer hospitalization, or prematurity. LEVEL OF EVIDENCE: Level IV.
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Atresia Esofágica , Criança , Pré-Escolar , Cognição , Atresia Esofágica/cirurgia , Função Executiva , Feminino , Humanos , Recém-Nascido , Pais , Instituições AcadêmicasRESUMO
OBJECTIVE: To identify attention profiles at 7 and 13 years, and transitions in attention profiles over time in children born very preterm (VP; <30 weeks' gestation) and full term (FT), and examine predictors of attention profiles and transitions. METHODS: Participants were 167 VP and 60 FT children, evaluated on profiles across five attention domains (selective, shifting and divided attention, processing speed, and behavioral attention) at 7 and 13 years using latent profile analyses. Transitions in profiles were assessed with contingency tables. For VP children, biological and social risk factors were tested as predictors with a multinomial logistic regression. RESULTS: At 7 and 13 years, three distinct profiles of attentional functioning were identified. VP children were 2-3 times more likely to show poorer attention profiles compared with FT children. Transition patterns between 7 and 13 years were stable average, stable low, improving, and declining attention. VP children were two times less likely to have a stable average attention pattern and three times more likely to have stable low or improving attention patterns compared with FT children. Groups did not differ in declining attention patterns. For VP children, brain abnormalities on neonatal MRI and greater social risk at 7 years predicted stable low or changing attention patterns over time. CONCLUSIONS: VP children show greater variability in attention profiles and transition patterns than FT children, with almost half of the VP children showing adverse attention patterns over time. Early brain pathology and social environment are markers for attentional functioning.
Assuntos
Atenção , Lactente Extremamente Prematuro , Adolescente , Criança , Cognição , Idade Gestacional , Humanos , Recém-Nascido , Imageamento por Ressonância MagnéticaRESUMO
OBJECTIVE: To determine the associations of different grades of intraventricular haemorrhage (IVH), particularly grades 1 and 2, with neurodevelopmental outcomes at 8 years of age in children born extremely preterm. DESIGN: Population-based cohort study. SETTING: State of Victoria, Australia. PATIENTS: Survivors born at <28 weeks' gestational age (n=546) and matched term-born controls (n=679) from three distinct eras, namely, those born in 1991-1992, 1997 and 2005. EXPOSURE: Worst grade of IVH detected on serial neonatal cranial ultrasound. OUTCOME MEASURES: Intellectual ability, executive function, academic skills, cerebral palsy and motor function at 8 years. RESULTS: There was a trend for increased motor dysfunction with increasing severity of all grades of IVH, from 24% with no IVH, rising to 92% with grade 4 IVH. Children with grade 1 or 2 IVH were at higher risk of developing cerebral palsy than those without IVH (OR 2.24, 95% CI 1.21 to 4.16). Increased rates of impairment in intellectual ability and academic skills were observed with higher grades of IVH, but not for grade 1 and 2 IVH. Parent-rated executive functioning was not related to IVH. CONCLUSION: While low-grade IVH is generally considered benign, it was associated with higher rates of cerebral palsy in school-aged children born EP, but not with intellectual ability, executive function, academic skills or overall motor function. Higher grades of IVH were associated with higher rates and risks of impairment in motor function, intellectual ability and some academic skills, but not parental ratings of executive function.