The Knowledge Translation of Early Cerebral Palsy (KiTE CP) Study: Implementing Screening Among a High-Risk Prospective Cohort of Australian Infants.

OBJECTIVE: To describe the implementation of the international guidelines for the early diagnosis of cerebral palsy (CP) and engagement in the screening process in an Australian cohort of infants with neonatal risk factors for CP. STUDY DESIGN: Prospective cohort study of infants with neonatal risk factors recruited at <6 months corrected age from 11 sites in the states of Victoria, New South Wales, and Queensland, Australia. First, we implemented a multimodal knowledge translation strategy including barrier identification, technology integration, and special interest groups. Screening was implemented as follows: infants with clinical indications for neuroimaging underwent magnetic resonance imaging and/or cranial ultrasound. The Prechtl General Movements Assessment (GMA) was recorded clinically or using an app (Baby Moves). Infants with absent or abnormal fidgety movements on GMA videos were offered further assessment using the Hammersmith Infant Neurological Examination (HINE). Infants with atypical findings on 2/3 assessments met criteria for high risk of CP. RESULTS: Of the 597 infants (56% male) recruited, 95% (n = 565) received neuroimaging, 90% (n = 537) had scorable GMA videos (2% unscorable/8% no video), and 25% (n = 149) HINE. Overall, 19% of the cohort (n = 114/597) met criteria for high risk of CP, 57% (340/597) had at least 2 normal assessments (of neuroimaging, GMA or HINE), and 24% (n = 143/597) had insufficient assessments. CONCLUSIONS: Early CP screening was implemented across participating sites using a multimodal knowledge translation strategy. Although the COVID-19 pandemic affected recruitment rates, there was high engagement in the screening process. Reasons for engagement in early screening from parents and clinicians warrant further contextualization and investigation.

Parent-recorded videos of infant spontaneous movement: Comparisons at 3-4 months and relationships with 2-year developmental outcomes in extremely preterm, extremely low birthweight and term-born infants.

BACKGROUND: Infants born extremely preterm (EP, <28-week gestational age) or extremely low birthweight (ELBW, <1000 g) are at risk of developmental delay and cerebral palsy (CP). The General Movements Assessment (GMA) and its extension, the Motor Optimality Score, revised (MOS-R) (assesses movement patterns and posture), may help to identify early delays. OBJECTIVES: To compare differences in the MOS-R scored from parent-recorded videos between infants born EP/ELBW and term-born infants, to determine relationships between the MOS-R and 2-year cognitive, language and motor outcomes and if any relationships differ between birth groups and the association of the GMA (fidgety) with CP. METHODS: A geographical cohort (EP/ELBW and term-control infants) was assessed using the MOS-R inclusive of the GMA at 3- to 4-month corrected age (CA), and the Bayley Scales of Infant and Toddler Development, 3rd edition (Bayley-III) at 2-year CA. Differences in mean total MOS-R between groups, relationships between MOS-R and 2-year outcomes and relationships between GMA (fidgety) and CP in infants born EP/ELBW were estimated using linear/logistic regression. RESULTS: Three hundred and twelve infants (147 EP/ELBW; 165 term) had complete MOS-R and Bayley-III assessments. Mean MOS-R was lower in infants born EP/ELBW than controls (mean difference -3.2, 95% confidence interval [CI] -4.2, -2.3). MOS-R was positively related to cognitive (ß [regression coefficient] = 0.71, 95% CI 0.27, 1.15), language (ß = 0.96, 95% CI 0.38, 1.54) and motor outcomes (ß = .89, 95% CI 0.45, 1.34). There was little evidence for interaction effects between birth groups for any outcome. Absent/abnormal fidgety movements were related to CP in children born EP/ELBW (risk ratio 5.91, 95% CI 1.48, 23.7). CONCLUSIONS: Infants born EP/ELBW have lower MOS-R than infants born at term. A higher MOS-R is related to better outcomes for 2-year development, with similar relationships in both birth groups. Absent/abnormal fidgety movements are related to CP in EP/ELBW survivors.

Early motor repertoire and neurodevelopment at 2 years in infants born extremely preterm or extremely-low-birthweight.

AIM: To determine the relationship between early motor repertoire and 2-year neurodevelopment in infants born extremely preterm (<28 weeks' gestation) or extremely-low-birthweight (ELBW) (<1000g). METHOD: This was a geographical prospective cohort of 139 infants born extremely preterm/ELBW (mean gestational age 26.7 weeks, standard deviation [SD] 2.0, 68/139 [49%] male), with parent-recorded videos suitable for scoring the General Movements Assessment (GMA). Motor repertoire was assessed using the Motor Optimality Score-Revised (MOS-R), with and without the fidgety movement subsection, and the GMA alone at 12 to 13+6  weeks corrected age and 14 to 15+6  weeks corrected age. At 2 years corrected age, impaired development was defined as Bayley Scales of Infant and Toddler Development, Third Edition motor and cognitive development scores 1SD or less relative to controls born at term; paediatricians diagnosed cerebral palsy (CP). RESULTS: Greater MOS-R scores at 14 to 15+6  weeks corrected age were associated with lower odds of CP (odds ratio [OR] per 1-point increase=0.83, 95% confidence interval [CI]=0.71-0.99), and motor (OR=0.93, 95% CI=0.87-0.99), or cognitive impairment (OR=0.94, 95% CI=0.88-0.99). Absent/abnormal GMA at 14 to 15+6 weeks was associated with CP and motor delay. There was little evidence that MOS-R scores at 12 to 13+6 weeks were associated with neurodevelopmental outcomes at 2 years. INTERPRETATION: Poorer MOS-R scores and absent/abnormal GMA, scored from parent-recorded videos at 14 to 15+6  weeks gestational age, are associated with CP and developmental impairment in 2-year-old infants born extremely preterm/ELBW.

Instructional guides for filming infant movements at home are effective for the General Movements Assessment.

AIM: To determine the effectiveness of two instructional guides to obtain video recordings for the General Movements Assessment (GMA). METHODS: A cross-sectional study of a community sample of family participants with low-risk term newborn infants recruited via social media and randomly allocated to receive one of two instructional guides (detailed or quick versions) to film their infant's movements at home. Participants returned videos via a secure Research Electronic Database Capture link and videos were scored for quality across 10 criteria, along with scoring the GMA. Participants were surveyed about their perceptions of the instructional guides and electronic file transmission. RESULTS: Seventy-six parents of infants were enrolled and randomly allocated to receive detailed (n = 38) and quick (n = 38) instructions to film their infant for a GMA. Videos were returned by 87% (95% confidence interval (CI) 72%, 96%) of detailed instruction users and 84% (95% CI 69%, 94%) of quick instruction users. The GMA could be conducted on all returned videos. The mean score for video quality was 9.9/10 (standard deviation 0.4, 95% CI 9.7, 10.0) for detailed instructions and 9.7 (standard deviation 0.6, 95% CI 9.4, 9.9) for quick instructions. Overall, participants felt that either instructional guide was easy to use. Fifteen (20%) participants had difficulties with video file transmission, requiring additional support. CONCLUSIONS: Parents can successfully use one of two different instructional guides for filming their infant's movements for GMA; however, support should be provided for safe and easy file transmission.

Impact of current Australian paid parental leave on families of preterm and sick infants.

AIM: Parents of preterm or sick infants are at increased risk of mental health problems. The financial stress associated with an infant's prolonged hospital stay can have an additional negative effect on families' wellbeing and child development. This study explores parent use of Australian paid parental leave (PPL) and the financial impact of having an infant requiring neonatal care. METHODS: Retrospective, cross-sectional, online survey study conducted from November 2020 to February 2021. Participants were parents of babies born from 1 January 2013, admitted to a neonatal intensive care unit or special care nursery in Australia. The survey explored use of Australian Government and private sector PPL, and financial stress. Parent-reported anxiety and depression were measured using the EuroQol Group 5D-5L Anxiety and Stress Subscale. RESULTS: Two hundred and thirty-one parents responded of which 93% had a preterm infant. Seventy-three percent of infants were hospitalised for more than 1 month, and 34% were readmitted to hospital within the first year following discharge home. Eighty-three percent of parents reported moderate, severe or extreme levels of anxiety or depression. Seventy-six percent reported that having a child in hospital had a moderate-very large financial impact on their family. Parents identified main costs to be travel, food, inability to work and direct medical costs. CONCLUSIONS: Having an infant born preterm or sick has significant emotional and financial implications for families. The current Australian Government PPL scheme does not adequately support parents of preterm or sick infants, and a change is urgently needed to improve outcomes for this vulnerable population.

Brain structure and neurological and behavioural functioning in infants born preterm.

AIM: To examine: (1) relationships between brain structure, and concurrently assessed neurological and behavioural functioning, in infants born preterm at term-equivalent age (TEA; approximately 38-44wks); and (2) whether brain structure-function relationships differ between infants born very (24-29wks) and moderate-late (32-36wks) preterm. METHOD: A total of 257 infants (91 very preterm, 166 moderate-late preterm; 120 males, 137 females) had structural magnetic resonance imaging (MRI) and neurological and behavioural assessments (Prechtl's general movements assessment, Neonatal Intensive Care Unit Network Neurobehavioral Scale [NNNS] and Hammersmith Neonatal Neurological Examination [HNNE]). Two hundred and sixty-three infants (90 very preterm, 173 moderate-late preterm; 131 males, 132 females) had diffusion MRI and assessments. Associations were investigated between assessment scores and global brain volumes using linear regressions, regional brain volumes using Voxel-Based Morphometry, and white matter microstructure using Tract-Based Spatial Statistics. RESULTS: Suboptimal scores on some assessments were associated with lower fractional anisotropy and/or higher axial, radial, and mean diffusivities in some tracts: NNNS attention and reflexes, and HNNE total score and tone, were associated with the corpus callosum and optic radiation; NNNS quality of movement with the corona radiata; HNNE abnormal signs with several major tracts. Brain structure-function associations generally did not differ between the very and moderate-late preterm groups. INTERPRETATION: White matter microstructural alterations may be associated with suboptimal neurological and behavioural performance in some domains at TEA in infants born preterm. Brain structure-function relationships are similar for infants born very preterm and moderate-late preterm. WHAT THIS PAPER ADDS: Brain volume is not related to neurological/behavioural function in infants born preterm at term. White matter microstructure is related to some neurological/behavioural domains at term. Brain-behaviour relationships are generally similar for infants born very preterm and moderate-late preterm.

ESTRUCTURA CEREBRAL Y FUNCIONAMIENTO NEUROLÓGICO Y CONDUCTUAL EN LACTANTES PREMATUROS: OBJETIVO: Examinar: (1) las relaciones entre la estructura del cerebro y el funcionamiento neurológico y conductual evaluado simultáneamente en bebés nacidos prematuros a la edad equivalente al término (EET; aproximadamente 38 a 44 semanas); (2) si las relaciones estructura-función cerebral difieren entre los bebés nacidos muy prematuros (24-29 semanas) y prematuros-moderados-tardíos (32-36 semanas). MÉTODO: Un total de 257 bebés (91 muy prematuros, 166 prematuros moderados tardíos; 120 varones, 137 mujeres) tuvieron imágenes de resonancia magnética estructural (IRM) y evaluaciones neurológicas y conductuales (evaluación general de los movimientos de Prechtl, red de unidades de cuidados intensivos neonatales, escala neuroconductual [NNNS] y Hammersmith Neonatal Neurological Examination [HNNE]). Doscientos sesenta y tres bebés (90 muy prematuros, 173 moderados tardíos; 131 varones, 132 mujeres) se sometieron a RMN de difusión y evaluaciones. Se investigaron las asociaciones entre los puntajes de evaluación y los volúmenes cerebrales globales utilizando regresiones lineales, los volúmenes cerebrales regionales utilizando Morfometría Basada en Voxel y la microestructura de la materia blanca utilizando Estadísticas Espaciales Basadas en Tractos. RESULTADOS: Las puntuaciones subóptimas en algunas evaluaciones se asociaron con una menor anisotropía fraccional y / o mayores difusividades axiales, radiales y medias en algunos tractos: la atención y los reflejos NNNS, y la puntuación total y el tono HNNE, se asociaron con el cuerpo calloso y la radiación óptica; Calidad de movimiento NNNS con la corona radiata; Signos anormales de HNNE con varios tractos importantes. Las asociaciones estructura-función cerebral generalmente no difirieron entre los grupos prematuros muy moderados y tardíos. INTERPRETACIÓN: Las alteraciones microestructurales de la materia blanca pueden asociarse con un desempeño neurológico y de comportamiento subóptimo en algunos dominios neurológicos y conductuales en bebés nacidos prematuros evaluados a la EET. Las relaciones cerebro-estructura-comportamiento son similares para los bebés nacidos muy prematuros y para los prematuros moderados-tardíos.

ESTRUTURA CEREBRAL E FUNCIONAMENTO NEUROLÓGICO E COMPORTAMENTAL EM LACTENTES NASCIDOS PREMATUROS: OBJETIVO: Examinar: (1) relações entre estrutura cerebral, e funcionamento neurológico e comportamental avaliados simultaneamente, em lactentes nascidos prematuros na idade equivalente ao termo (IET; aproximadamente 38-44 semanas); 2) se a relação entre estrutura e função cerebral difere entre crianças nascidas muito prematuras (24-29sem) e moderadas-tardias (32-36sem). MÉTODO: Um total de 257 lactentes (91 muito prematuros, 166 prematuros moderados-tardios; 120 do sexo masculino, 137 do sexo feminino) tiveram imagens de ressonância magnética (IRM) e avaliações neurológicas e comportamentais (avaliação dos movimentos gerais de Prechtl, Escala Neurocomportamental da rede de Unidade de Cuidados Intensivos Neonatais [NNNS] e o Exame Neurológico Neonatal de Hammersmith [HNNE]). Duzentos e sessenta e três lactentes (90 muito prematuros, 173 prematuros moderados-tardios; 131 do sexo masculino, 132 do sexo feminino) relizaram IRM por difusão e as demais avaliações. Associações foram investigadas entre os escores das avaliações e volumes cerebrais globais usando regressões lineares, volumens cerebrais regionais usando Morfometria baseada em voxels, e micro-estrutura da substância branca usando Estatística especial baseada em tractos. RESULTADOS: Escores subótimos em algumas avaliações foram associada scom menor anisotropia fractional e/ou maior difusividade axial, radial e média em alguns tractos: atenção e reflexos no NNNS, escore total e de tônus no HNNE, foram associados com o corpo caloso e radiação óptica; qualidade do movimento no NNNS com a coroa radiada; sinais anormais no HNNE com vários tractos importantes. Associações entre estrutura e função do cérebro geralmente não diferiram entre os grupos de prematuros muito prematuros e moderados-tardios. INTERPRETAÇÃO: Alterações da microestrutura da substância branca podem estar associadas a desempenho neurológico e comportamental subótimos em alguns domínios na IET em lactentes prematuros. Relações entre estrutura e função cerebral são similares para lactentes muito prematuros e moderados-tardios.

The Baby Moves smartphone app for General Movements Assessment: Engagement amongst extremely preterm and term-born infants in a state-wide geographical study.

AIM: The Baby Moves smartphone application is designed for parents to video their infants' spontaneous movement for remote General Movements Assessment (GMA). We aimed to assess the engagement with Baby Moves amongst high- and low-risk infants' families and the socio-demographic variables related to engagement. METHODS: Families of extremely preterm (EP; <28 weeks' gestational age) or extremely low-birthweight (ELBW; <1000 g) infants and term-born controls from a state-wide geographical cohort study were asked to download Baby Moves. Baby Moves provided reminders and instructions to capture videos of their infants' general movements. Parents were surveyed about Baby Moves' usability. RESULTS: The parents of 451 infants (226 EP/ELBW; 225 control) were recruited; 416 (204 EP/ELBW; 212 control) downloaded Baby Moves, and 346 (158 EP/ELBW; 188 control) returned at least one scorable video for remote GMA. Fewer EP/ELBW families submitted a scorable video than controls (70 vs. 83%, respectively; odds ratio (OR) 0.48, 95% confidence interval (CI) 0.3-0.79, P = 0.003), but the difference diminished when adjusted for socio-demographic variables (OR 1.09, 95% CI 0.59-2.0, P = 0.79). Families who received government financial support (OR 0.28, 95% CI 0.1-0.78, P = 0.015), who spoke limited English at home (OR 0.39, 95% CI 0.22-0.69, P = 0.001) or with lower maternal education (OR 0.38, 95% CI 0.21-0.68, P = 0.001) were less likely to return a scorable video. Surveyed parents responded mostly positively to Baby Moves' usability. CONCLUSIONS: Most parents in this study successfully used Baby Moves to capture infant movements for remote GMA. Families of lower socio-demographic status used Baby Moves less.

Preterm and term-equivalent age general movements and 1-year neurodevelopmental outcomes for infants born before 30 weeks' gestation.

AIM: To examine the associations between Prechtl's General Movements Assessment (GMA), conducted from birth to term-equivalent age, and neurodevelopmental outcomes at 12 months corrected age, in infants born very preterm. METHOD: One hundred and thirty-seven infants born before 30 weeks' gestation had serial GMA (categorized as 'normal' or 'abnormal') before term and at term-equivalent age. At 12 months corrected age, neurodevelopment was assessed using the Alberta Infant Motor Scale (AIMS); Neurological, Sensory, Motor, Developmental Assessment (NSMDA); and Touwen Infant Neurological Examination (TINE). The relationships between GMA at four time points and 12-month neurodevelopmental assessments were examined using regression models. RESULTS: Abnormal GMA at all time points were associated with worse continuous scores on the AIMS, NSMDA, and TINE (p<0.05). Abnormal GMA before term and at term-equivalent age were associated with increased odds of mild-severe dysfunction on the NSMDA (odds ratio [OR] 4.26, 95% confidence interval [CI] 1.55-11.71, p<0.01; and OR 4.16, 95% CI 1.55-11.17, p<0.01 respectively) and abnormal GMA before term with increased odds of suboptimal-abnormal motor function on the TINE (OR 2.75, 95% CI 1.10-6.85, p=0.03). INTERPRETATION: Abnormal GMA before term and at term-equivalent age were associated with worse neurodevelopment at 12 months corrected age in children born very preterm. WHAT THIS PAPER ADDS: Abnormal general movements before term predict developmental deficits at 1 year in infants born very preterm. General Movements Assessment before term identifies at-risk infants born very preterm.

Reliability of Neurobehavioral Assessments from Birth to Term Equivalent Age in Preterm and Term Born Infants.

Neurobehavioral assessments provide insight into the functional integrity of the developing brain and help guide early intervention for preterm (<37 weeks' gestation) infants. In the context of shorter hospital stays, clinicians often need to assess preterm infants prior to term equivalent age. Few neurobehavioral assessments used in the preterm period have established interrater reliability. AIM: To evaluate the interrater reliability of the Hammersmith Neonatal Neurological Examination (HNNE) and the NICU Network Neurobehavioral Scale (NNNS), when used both preterm and at term (>36 weeks). METHODS: Thirty-five preterm infants and 11 term controls were recruited. Five assessors double-scored the HNNE and NNNS administered either preterm or at term. A one-way random effects, absolute, single-measures interclass correlation coefficient (ICC) was calculated to determine interrater reliability. RESULTS: Interrater reliability for the HNNE was excellent (ICC > 0.74) for optimality scores, and good (ICC 0.60-0.74) to excellent for subtotal scores, except for 'Tone Patterns' (ICC 0.54). On the NNNS, interrater reliability was predominantly excellent for all items. Interrater agreement was generally excellent at both time points. CONCLUSIONS: Overall, the HNNE and NNNS neurobehavioral assessments demonstrated mostly excellent interrater reliability when used prior to term and at term.

Does the Bayley-III Motor Scale at 2 years predict motor outcome at 4 years in very preterm children?

AIM: To assess the predictive validity of the Bayley Scales of Infant and Toddler Development - Third Edition (Bayley-III) for later motor outcome. METHOD: Ninety-six infants (49 males, 47 females) born at less than 30 weeks' gestation admitted to two tertiary hospitals in Melbourne, Australia, were assessed with the Bayley-III Motor Scale at 2 years' corrected age and were classified as suspect or definite motor impairment if they scored less than -1 or -2 standard deviations respectively, relative to the test mean. At 4 years' corrected age, children completed Movement Assessment Battery for Children - Second Edition (MABC-2); for the total motor score, cut-offs of not more than the 15th were used to classify motor development and cut-offs of not more than the 15th centile were classified as having a significant movement difficulty. RESULTS: Of the 96 children assessed at both ages, at 2 years 9% had suspect and 4% had definite motor impairment; however, by 4 years, rates had increased to 22% and 19% respectively. The specificity of the Bayley-III for motor impairments for later motor outcome was excellent (ranging from 94 to 100% for cerebral palsy [CP] and 97 to 100% for motor impairment), although the sensitivity was low (ranging from 67 to 83% for CP and 18 to 37% for motor impairment); many children with later impairment were not identified by the Bayley-III. INTERPRETATION: The Bayley-III Motor Scale at 2 years underestimates later rates of motor impairment, particularly in the absence of CP at 4 years on the MABC-2 total motor score in children born at less than 30 weeks' gestational age.

Assessments of sensory processing in infants: a systematic review.

AIM: The aim of the study was to evaluate the psychometric properties and clinical use of assessments of sensory processing function, within the first 2 years of life, and to identify which assessment is the most appropriate and precise in measuring the construct of sensory processing. METHOD: The literature was comprehensively searched, and assessments used to measure sensory processing in infancy were systematically selected and reviewed for clinical use, reliability, validity, and responsiveness. RESULTS: Thirty-four assessments were identified; three met the predefined inclusion criteria. All discriminative assessments, the Sensory Rating Scale, and Infant/Toddler Sensory Profile are parent-reported questionnaires and can be administered from birth up to 3 years of age. The Test of Sensory Function in Infants is a performance-based assessment and is suitable for infants aged 4 to 18 months. Studies evaluating the psychometric properties of these three assessments differed in the properties addressed and reported poor to adequate reliability. INTERPRETATION: Selecting the most appropriate and precise assessment to measure sensory processing function in infancy will depend on the specific components of sensory processing that need to be evaluated, infant age, and what other sources of information are available about the infant's development.

Preterm Infant Outcomes at 24 Months After Clinician-Supported Web-Based Intervention.

The authors of this study evaluated infant and parent outcomes at 12 and 24 months after a clinician-supported, web-based early intervention for preterm infants. OBJECTIVE: To examine the efficacy of a clinician-supported, web-based intervention delivered over the first year after birth compared with standard care in children born after <34 weeks' gestation, on child development at 24 months corrected age (CA), parental mental health, and the parent-child relationship at 24 months. METHODS: We randomly allocated 103 preterm infants to clinician-supported, web-based intervention (n = 50) or standard care control (n = 53) groups. At 24 months CA, child cognitive, language, motor, social-emotional development, and the parent-child relationship were assessed. Parental mental health and quality of life were assessed at 12 and 24 months CA. RESULTS: At 24 months, child development, maternal mental health, and maternal quality of life were similar for the intervention and control groups. There was some evidence that mothers in the intervention group had lower odds of being in the elevated category for depression at 12 months (odds ratio: 0.19; 95% confidence interval [CI]: 0.04-0.90; P = .04). Scores were higher in the intervention group for child responsiveness (mean difference: 0.57; 95% CI: 0.03-1.11; P = .04), child involvement (mean difference: 0.61; 95% CI: 0.09-1.13; P = .02), and maternal structuring (mean difference: 0.72; 95% CI: 0.22-1.21; P = .01) during the parent-infant interaction at 24 months. CONCLUSIONS: This study provides preliminary evidence that a clinician-supported, web-based early intervention program for preterm infants had a positive effect on the parent-child relationship and maternal mental health immediately after the intervention but potentially little effect on child development.

Relationships between early postnatal cranial ultrasonography linear measures and neurobehaviour at term-equivalent age in infants born <30 weeks' gestational age.

BACKGROUND: The relationship between early postnatal brain development and neurobehaviour at term-equivalent age (TEA) remains uncertain. AIM: We aimed to explore relationships between early postnatal cranial ultrasonography (cUS) linear measures of brain size and brain growth with neurobehaviour at TEA in infants born <30 weeks' gestational age (GA). STUDY DESIGN: Prospective observational cohort study. SUBJECTS: 137 infants born <30 weeks' GA without major brain injury on neonatal cUS. OUTCOME MEASURES: Neurobehaviour at TEA assessed using the General Movements Assessment (GMA) and Hammersmith Neonatal Neurological Examination (HNNE). RESULTS: The GMA was administered in 115/137 (84%) infants; 80 (70%) presented with abnormal general movements (GMs) (79 poor repertoire, 1 cramped synchronised). The HNNE was assessed in 106/137 (77%) infants; 52 (49%) had a suboptimal total score. With respect to brain size, larger measures of the corpus callosum length (CCL) and right anterior horn width (AHW) at 1-month were related to lower risk of abnormal GMs, and larger measures of the biparietal diameter at 1-week and 2-months were related to lower risk of a suboptimal HNNE. As for brain growth, increases of the CCL and transcerebellar diameter between birth and 1-month, and left and right AHWs between 1- and 2-months, were related to lower risk of abnormal GMs. CONCLUSION: Early postnatal brain size and brain growth were related to neurobehaviour at TEA in infants born <30 weeks' GA. This study provides preliminary evidence for the prognostic utility of early postnatal cUS linear measures as potential markers of neurodevelopment in later childhood.

Identifying research priorities in newborn medicine: a Delphi study of parents' views.

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.

Early general movements are associated with developmental outcomes at 4.5-5 years.

BACKGROUND: Prechtl's general movements assessment (GMA) post-term has high predictive validity for cerebral palsy, but less is known about whether earlier GMA, including before term, are associated with other developmental problems. AIMS: To examine the relationships between GMA prior to term and at term-equivalent, with developmental outcomes at 4.5-5 years' corrected age. STUDY DESIGN: Prospective cohort study. SUBJECTS: 122 very preterm infants born <30 weeks' gestation and 91 healthy term controls. OUTCOME MEASURES: GMA (categorised as 'normal' or 'abnormal') were assessed at <32, 32-33 and 34-36 weeks' postmenstrual age for the preterm infants, and at term-equivalent for both groups. Children were assessed at 4.5-5 years' corrected age using the Movement Assessment Battery for Children-2nd edition (MABC-2), Pediatric Evaluation of Disability Inventory-Computer Adaptive Test (PEDI-CAT), Pediatric Quality of Life Inventory (PedsQL), Little Developmental Coordination Disorder Questionnaire (Little DCD-Q) and Wechsler Preschool and Primary Scale of Intelligence-IV (WPPSI-IV). RESULTS: Prior to term, abnormal GMA at the first two timepoints were associated with lower scores on the Little DCD-Q, and abnormal GMA at the second and third timepoints with lower quality of life scores and PEDI-CAT mobility domain scores. Abnormal GMA at term-equivalent were associated with lower MABC-2, mobility and quality of life scores for preterm infants, and worse social/cognitive domain scores for both groups. CONCLUSIONS: Abnormal GMA prior to term and at term-equivalent are associated with worse motor, functional and cognitive outcomes at 4.5-5 years' corrected age, and may be useful to identify infants for developmental surveillance/early intervention.

Occurrence of and temporal trends in fidgety general movements in infants born extremely preterm/extremely low birthweight and term-born controls.

BACKGROUND: Fidgety general movements have high predictive validity for later cerebral palsy (CP) but their temporal organisation requires further understanding for assessment accuracy. AIMS: To describe the occurrence of and temporal trends in fidgety movements, and whether they differ between infants born preterm and at term. STUDY DESIGN: Cohort study. SUBJECTS: We assessed 155 EP/ELBW infants and 185 term-born infants born extremely preterm (EP; <28 weeks' gestation) and/or extremely low birthweight (ELBW; <1000 g birthweight) or at term (37-42 weeks' gestation) in the state of Victoria, Australia. OUTCOME MEASURES: Parents of infants submitted up to two videos at 12-13+6 and/or 14-16+6 weeks' corrected age of infants' general movements. Videos were scored using the Prechtl General Movements Assessment (GMA) (fidgety) and classified as normal or absent/abnormal. Infants with at least one normal GMA were classified as normal. Individual GMA trajectories were analysed over time using logistic regression. RESULTS: Overall, infants born EP/ELBW were more likely to have absent/abnormal fidgety movements than term-born infants (23% versus 3%, odds ratio [OR] 8.50 (95% confidence interval (CI) 3.48-20.8, p < 0.001). Fewer EP/ELBW and term-born infants showed absent/abnormal fidgety movements with each week of increasing age (EP/ELBW OR 0.46, 95% CI 0.25-0.84, p = 0.01; term-born OR 0.35, 95% CI 0.16-0.8, p = 0.01; interaction, p = 0.53). CONCLUSIONS: Absent/abnormal fidgety movements are more prevalent in infants born EP/ELBW than at term. Fidgety movements normalise with older age in both infants born EP/ELBW and at term between 12 and 16+6 weeks' corrected age.

Physiological stress responses in infants at 29-32 weeks' postmenstrual age during clustered nursing cares and standardised neurobehavioural assessments.

OBJECTIVE: To compare the physiological stress responses of infants born <30 weeks' gestational age when undergoing clustered nursing cares with standardised neurobehavioural assessments in neonatal nurseries. DESIGN/METHODS: Thirty-four infants born <30 weeks' gestation were recruited from a tertiary neonatal intensive care unit. Heart rate (HR) and oxygen saturation were recorded during clustered nursing cares and during standardised neurobehavioural assessments (including the General Movements Assessment, Hammersmith Neonatal Neurological Examination and Premie-Neuro Assessment). Two assessors extracted HR and oxygen saturations at 5 s intervals, with HR instability defined either as tachycardia (HR >180 beats per minute (bpm)) or bradycardia (HR <100 bpm). Oxygen desaturations were defined as SpO2<90%. Physiological stability was compared between nursing cares and neurobehavioural assessments using linear (for continuous outcomes) and logistic (HR instability and oxygen desaturation) regression. RESULTS: Compared with clustered nursing cares HR was lower (mean difference -5.9 bpm; 95% CI -6.5 to 5.3; P<0.001) and oxygen saturation higher (mean difference 2.4%; 95% CI 2.1% to 2.6%; P<0.001) during standardised neurobehavioural assessments. Compared with clustered nursing cares neurobehavioural assessments were also associated with reduced odds of tachycardia (OR 0.44, 95% CI 0.22 to 0.86), HR instability (OR 0.43, 95% CI 0.22 to 0.85) and oxygen desaturation (OR 0.43, 95% CI 0.26 to 0.70). CONCLUSIONS: Standardised neurobehavioural assessments are associated with less physiological stress than clustered nursing cares in infants aged 29-32 weeks' postmenstrual age, and are therefore possible without causing undue physiological disturbance in medically stable infants.

Continuum of neurobehaviour and its associations with brain MRI in infants born preterm.

BACKGROUND: Infants born very preterm (VPT) and moderate-to-late preterm (MLPT) are at increased risk of long-term neurodevelopmental deficits, but how these deficits relate to early neurobehaviour in MLPT children is unclear. The aims of this study were to compare the neurobehavioural performance of infants born across three different gestational age groups: preterm <30 weeks' gestational age (PT<30); MLPT (32-36 weeks' gestational age) and term age (≥37 weeks' gestational age), and explore the relationships between MRI brain abnormalities and neurobehaviour at term-equivalent age. METHODS: Neurobehaviour was assessed at term-equivalent age in 149 PT<30, 200 MLPT and 200 term-born infants using the Neonatal Intensive Care UnitNetwork Neurobehavioral Scale (NNNS), the Hammersmith Neonatal Neurological Examination (HNNE) and Prechtl's Qualitative Assessment of General Movements (GMA). A subset of 110 PT<30 and 198 MLPT infants had concurrent brain MRI. RESULTS: Proportions with abnormal neurobehaviour on the NNNS and the HNNE, and abnormal GMA all increased with decreasing gestational age. Higher brain MRI abnormality scores in some regions were associated with suboptimal neurobehaviour on the NNNS and HNNE. The relationships between brain MRI abnormality scores and suboptimal neurobehaviour were similar in both PT<30 and MLPT infants. The relationship between brain MRI abnormality scores and abnormal GMA was stronger in PT<30 infants. CONCLUSIONS: There was a continuum of neurobehaviour across gestational ages. The relationships between brain abnormality scores and suboptimal neurobehaviour provide evidence that neurobehavioural assessments offer insight into the integrity of the developing brain, and may be useful in earlier identification of the highest-risk infants.

Neurobehaviour and neurological development in the first month after birth for infants born between 32-42 weeks' gestation.

AIMS: The objective of this study was to generate reference values for infants born moderate preterm (MPT), late preterm (LPT) and full term (FT) for three newborn neurobehavioural/neurological examinations in the first weeks after birth. STUDY DESIGN: Prospective cohort study to examine the expected range of values for MPT (born 32(+0) to 33(+6)), LPT (34(+0) to 36(+6)) and FT (born 37 to 42weeks' gestation) infants' performance on the Hammersmith Neonatal Neurological Examination (HNNE), the Neonatal Intensive Care Unit Network Neurobehavioural Scale (NNNS) and Prechtl's General Movements Assessment (GMA) in the first weeks after birth. Further, to determine the effects of sex, gestational age at birth, and postmenstrual age at assessment on the 3 different assessments within the gestational age groups. SUBJECTS: 80 MPT, 129 LPT and 201 FT infants were recruited shortly after birth from a tertiary hospital. RESULTS: The means, standard deviations and 5th, 10th, 25th, 50th, 75th, 90th and 95th centiles are presented for the HNNE and NNNS for each of the three gestational age groups. Overall, FT infants performed better than MPT and LPT infants. The rate of normal GMA within the first few weeks after birth was 25% for MPT, 32% for LPT, and 90% for FT infants. The effects of sex, gestational age at birth, and postmenstrual age at assessment varied between test and gestational age groups. CONCLUSIONS: This study provides normative data for the HNNE, NNNS, and GMA administered within the first weeks after birth in a sample of MPT, LPT and healthy FT infants.