Study protocol: an early intervention program to improve motor outcome in preterm infants: a randomized controlled trial and a qualitative study of physiotherapy performance and parental experiences

Early developmental intervention programmes provided post hospital discharge to prevent motor and cognitive impairment in preterm infants

BACKGROUND

Infants born preterm are at increased risk of cognitive and motor impairments compared with infants born at term. Early developmental interventions for preterm infants are targeted at the infant or the parent-infant relationship, or both, and may focus on different aspects of early development. They aim to improve developmental outcomes for these infants, but the long-term benefits remain unclear. This is an update of a Cochrane review first published in 2007 and updated in 2012 and 2015.

OBJECTIVES

Primary objective To assess the effect of early developmental interventions compared with standard care in prevention of motor or cognitive impairment for preterm infants in infancy (zero to < three years), preschool age (three to < five years), and school age (five to < 18 years). Secondary objective To assess the effect of early developmental interventions compared with standard care on motor or cognitive impairment for subgroups of preterm infants, including groups based on gestational age, birthweight, brain injury, timing or focus of intervention and study quality.

SEARCH METHODS

We searched CENTRAL, MEDLINE, Embase, CINAHL, PsycINFO and trial registries in July 2023. We cross-referenced relevant literature, including identified trials and existing review articles.

SELECTION CRITERIA

Studies included randomised, quasi-randomised controlled trials (RCTs) or cluster-randomised trials of early developmental intervention programmes that began within the first 12 months of life for infants born before 37 weeks' gestational age (GA). Interventions could commence as an inpatient but had to include a post discharge component for inclusion in this review. Outcome measures were not prespecified, other than that they had to assess cognitive outcomes, motor outcomes or both. The control groups in the studies could receive standard care that would normally be provided.

DATA COLLECTION AND ANALYSIS

Data were extracted from the included studies regarding study and participant characteristics, timing and focus of interventions and cognitive and motor outcomes. Meta-analysis using RevMan was carried out to determine the effects of early developmental interventions at each age range: infancy (zero to < three years), preschool age (three to < five years) and school age (five to < 18 years) on cognitive and motor outcomes. Subgroup analyses focused on GA, birthweight, brain injury, time of commencement of the intervention, focus of the intervention and study quality. We used standard methodological procedures expected by Cochrane to collect data and evaluate bias. We used the GRADE approach to assess the certainty of evidence.

MAIN RESULTS

Forty-four studies met the inclusion criteria (5051 randomly assigned participants). There were 19 new studies identified in this update (600 participants) and a further 17 studies awaiting outcomes. Three previously included studies had new data. There was variability in the focus and intensity of the interventions, participant characteristics, and length of follow-up. All included studies were either single or multicentre trials and the number of participants varied from fewer than 20 to up to 915 in one study. The trials included in this review were mainly undertaken in middle- or high-income countries. The majority of studies commenced in the hospital, with fewer commencing once the infant was home. The focus of the intervention programmes for new included studies was increasingly targeted at both the infant and the parent-infant relationship. The intensity and dosages of interventions varied between studies, which is important when considering the applicability of any programme in a clinical setting. Meta-analysis demonstrated that early developmental intervention may improve cognitive outcomes in infancy (developmental quotient (DQ): standardised mean difference (SMD) 0.27 standard deviations (SDs), 95% confidence interval (CI) 0.15 to 0.40; P < 0.001; 25 studies; 3132 participants, low-certainty evidence), and improves cognitive outcomes at preschool age (intelligence quotient (IQ); SMD 0.39 SD, 95% CI 0.29 to 0.50; P < 0.001; 9 studies; 1524 participants, high-certainty evidence). However, early developmental intervention may not improve cognitive outcomes at school age (IQ: SMD 0.16 SD, 95% CI -0.06 to 0.38; P = 0.15; 6 studies; 1453 participants, low-certainty evidence). Heterogeneity between studies for cognitive outcomes in infancy and preschool age was moderate and at school age was substantial. Regarding motor function, meta-analysis of 23 studies showed that early developmental interventions may improve motor outcomes in infancy (motor scale DQ: SMD 0.12 SD, 95% CI 0.04 to 0.19; P = 0.003; 23 studies; 2737 participants, low-certainty evidence). At preschool age, the intervention probably did not improve motor outcomes (motor scale: SMD 0.08 SD, 95% CI -0.16 to 0.32; P = 0.53; 3 studies; 264 participants, moderate-certainty evidence). The evidence at school age for both continuous (motor scale: SMD -0.06 SD, 95% CI -0.31 to 0.18; P = 0.61; three studies; 265 participants, low-certainty evidence) and dichotomous outcome measures (low score on Movement Assessment Battery for Children (ABC) : RR 1.04, 95% CI 0.82 to 1.32; P = 0.74; 3 studies; 413 participants, low-certainty evidence) suggests that intervention may not improve motor outcome. The main source of bias was performance bias, where there was a lack of blinding of participants and personnel, which was unavoidable in this type of intervention study. Other biases in some studies included attrition bias where the outcome data were incomplete, and inadequate allocation concealment or selection bias. The GRADE assessment identified a lower certainty of evidence in the cognitive and motor outcomes at school age. Cognitive outcomes at preschool age demonstrated a high certainty due to more consistency and a larger treatment effect.

AUTHORS' CONCLUSIONS

Early developmental intervention programmes for preterm infants probably improve cognitive and motor outcomes during infancy (low-certainty evidence) while, at preschool age, intervention is shown to improve cognitive outcomes (high-certainty evidence). Considerable heterogeneity exists between studies due to variations in aspects of the intervention programmes, the population and outcome measures utilised. Further research is needed to determine which types of early developmental interventions are most effective in improving cognitive and motor outcomes, and in particular to discern whether there is a longer-term benefit from these programmes.

Physiotherapy Intervention on Premature Infants-A Pilot Study

Background and Objectives: Considering the fact that prematurity echoes in terms of motor development even up to the age of adolescence, through the presence of deficiencies, the importance of starting kinetotherapeutic treatment as soon as possible is highlighted, even in the absence of brain damage or obvious motor delays. Therefore, the objectives of this study are to analyze the factors that influence the level of motor development of premature babies up to 9 months and identify the motor development curve of premature babies according to the three stages of motor development: the position of symmetrical support on the elbows at 3 months, sitting with support at 6 months, and verticalization at 9 months. Materials and Methods: This prospective pilot study was conducted within a rehabilitation facility located in Targu Mureș, Romania, spanning a duration of 2 years from June 2021 to 2023. Results: The study involved a population of 78 children, all premature infants, selected from the patient pool of the rehabilitation facility, specifically chosen based on adherence to the predetermined inclusion and exclusion criteria outlined in the study protocol. Two physiotherapists specialized in child recovery were involved in the study, and one performed the assessments and the other applied the Bobath therapy. Conclusions: Early physiotherapy interventions can have a positive influence in terms of reducing differences in motor development between preterm and full-term infants. This study identified several factors that influence the motor development of premature infants. Among these, the most prominent biological factors were gestational age and birth weight.

Concurrent and predictive validity of the Alberta Infant Motor Scale and the Peabody Developmental Motor Scales-2 administered to infants born preterm in Norway

BACKGROUND

The correlation between the Alberta Infant Motor Scale (AIMS) and the Peabody Developmental Motor Scales-2 (PDMS-2) has not previously been assessed in Norwegian infants. Our purpose was to investigate the concurrent validity of the AIMS and the PDMS-2 in a group of high-risk infants, and to investigate the predictive validity of the two tests for atypical motor function at 24 months post term age (PTA).

METHODS

This is a retrospective study of the AIMS and the PDMS-2 administered to infants born preterm with gestational age ≤ 32 weeks (n = 139) who had participated in a randomized controlled trial of early parent-administered physiotherapy. The infants' motor development had been assessed using the AIMS and the PDMS-2 at 6- and 12-months. The primary outcome was PDMS-2 at 24-months PTA. To explore the correlation between the two tests we used Spearman's rho. Bland Altman plots were used to detect if there were systematic differences between the measurements. Receiver-operating characteristics curves were used to calculate area under the curve as an estimate of diagnostic accuracy of the AIMS and the PDMS- with respect to motor outcome at 24 months.

RESULTS

The correlation between the AIMS and the PDMS-2 (total motor and locomotion subscale), at 6 months, was r = 0.44 and r = 0.76, and at 12 months r = 0.56 and r = 0.80 respectively. The predictive validity for atypical motor function at 24 months, assessed using the area under the curve at 6- and at 12- months, was for the AIMS 0.87 and 0.86, respectively, and for the PDMS-2 locomotion subscale 0.82 and 0.76 respectively.

CONCLUSION

The correlation between the AIMS and the PDMS-2 locomotion subscale, at 6- and 12- months PTA, was good to excellent in a group of infants born preterm in Norway. And the AIMS and the locomotion subscale of the PDMS-2 were equally good predictors for atypical motor outcomes at 24 months PTA. These findings indicate that the AIMS and the locomotion subscale of the PDM-2, could be used interchangeable when assessing motor development in infants at 6- or 12 months of age.

TRIAL REGISTRATION

ClinicalTrials.gov NCT01089296.

Motor development in premature infants: Study protocol for an interdisciplinary hospital-home intervention

BACKGROUND

Deviations occur in the neuropsychomotor development of premature infants; early interventions minimize delay motor. This study aimed to determine the effect of an interdisciplinary hospital-home intervention addressing motor development adaptation in premature infants in Colombia in comparison with traditional interventions.

METHODS

This study was based on a parallel design, with two groups, namely, experimental and control. The experimental group, hospital-home intervention (HHI) performed in two settings (i.e., hospital neonatal care units and homes), and the control group, traditional intervention, (TI) performed in institutions for premature infants. The sample will be composed of 130 randomly-allocated infants, 65 in the experimental group (HHI) and 65 in the control group (TI) of moderate to late preterm infants (gestational age between 34 and 37 weeks), weighing more than or equal to 1.800 g, who are hemodynamically stable and reside in the cities of Tunja and Bogotá-Colombia recruited between 2021 and 2022. For the pre- and post-intervention assessments, the TIMPSI and the CapDMP are the instruments used to assess motor development and the degree of parents' or caregivers' knowledge about motor development. The HHI is composed of 10 intervention strategies based on stimulation of motor development, performed twice a day for 10 min for two months, in combination with calls to a mobile device, using software (Baby Motor Skills) and an instant messaging system (WhatsApp).

RESULTS

This hospital-home intervention program proposes an approach focused on the motor development of premature infants, based on sensory and motor stimulation strategies, in addition to follow-up performed at home with the use of a mobile application that improves the motor development of premature infants. Register Clinical Trial: NCT04563364.

CONCLUSION

The HHI provides the opportunity to determine whether the individualized four-week from admission to follow up at home with parent training will improve the motor skills of premature infants.

Promoting Survival and Primitive Reflexes to Prevent Brain Imbalance in Premature Infants: A Scoping Review of New Insights by Physiotherapists on Developmental Disorders

Survival reflexes, originating from the brainstem, are involuntary motor responses that are present at birth and facilitate the survival of the neonate. The age of the baby is critical enough to give information about the maturation of these reflexes. In the case of preterm babies, the delayed maturity of these reflexes may pose a threat to the life of the newborn. One can perceive what the baby can feel, taste, smell, see, and hear through reflex maturation. The objective was to identify and understand the role of survival reflexes and primitive reflexes and their importance in premature children. PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), ProQuest, The Cochrane Library, Scopus, and Web of Science were the electronic databases used from January 2017 until November 2022. We included the original articles, reviews, and randomized clinical trials that focused on the importance of survival reflexes. Later on, all the articles were systematically arranged as per the information they provided, and 101 titles were selected, of which 32 met the inclusion criteria. Various articles were written regarding the present literature about primitive reflexes, but none promoted them in the neonatal intensive care unit (NICU). This review is regarding the use of survival reflexes to improve the outcomes of neonates, specifically in the NICU. Simple interactions with the environment are made possible by primitive reflexes, which also serve as the foundation for early movement. This review presents a better understanding of the maturation of survival reflexes and primitive reflexes and provides further insight into how a physiotherapist can concentrate on the early identification and development of these reflexes to prevent further complications. Assessing the primitive reflex in the NICU will help in the early identification of developmental delay and further help us predict reflex maturation. Promoting them will provide positive outcomes in terms of neonatal development. A physiotherapist can play a vital role starting from the NICU to get the baby into an environment similar to the mother's womb and therapy to get the early maturation of the reflex.

A systematic synthesis of qualitative studies on parents' experiences of participating in early intervention programs with their infant born preterm

Early intervention programs involving both the parent and the infant born preterm have demonstrated positive effects on developmental outcomes for the children. However, studies have also shown that parental engagement and adherence when implementing intervention programs can be challenging. The aim of this review was to provide a comprehensive description and new insights into key messages gleaned from the parent reports on participating in early intervention with their infant born preterm; knowledge vital to facilitate implementation of early interventions into clinical practice when using a model of direct parent involvement. Early intervention is broadly defined as a multi-interdisciplinary field provided to children from birth to five years of age to foster child health, wellbeing, development, adapting parenting and family function. For this systematic synthesis we define early intervention as programs with specific activities completed with the infant during the first year after birth. We assembled qualitative interview studies on parents' experiences with participation in early intervention and applied Malterud's qualitative systematic meta-synthesis to synthesize and translate the original findings across studies. In the analysis we applied enactive concepts of embodiment, autonomy, participatory sensemaking, and agency. 10 qualitative studies were identified and included. The systematic synthesis reveals how parents' successful and meaningful participation in early intervention programs were facilitated by their "active embodied doing." The "embodied doing" appeared as the basis for the parents' sense-making processes, development of confidence, and the ability for parents to see new possibilities for actions within themselves, with and in the child. In that respect, a perception of mutuality in the interaction between parent, infant and interventionist was central. Consequently, an important consideration when implementing early intervention into clinical practice is to promote embodied parent-infant interactions as well as trust between the parent and the interventionist.

Two-year motor outcomes associated with the dose of NICU based physical therapy: The Noppi RCT

BACKGROUND

Interventions involving both the parent and the preterm infant have demonstrated lasting effects on cognitive outcomes, but motor effects are less salient. It remains unclear when to commence early intervention and if dosages have impact on motor outcomes.

AIMS

To examine the effect on motor performance at 24-months corrected age following a parent-administered intervention performed with infants born preterm in the NICU. Intervention dosing and longitudinal motor performance were also analyzed.

STUDY DESIGN

Single-blinded randomized multicenter clinical trial.

SUBJECTS

153 infants born, gestational age ≤ 32 weeks at birth, were randomized into intervention or control group.

OUTCOME MEASURES

Infant Motor Performance Screening Test, Test of Infant Motor Performance, Peabody Developmental Motor Scales-2.

RESULTS

No significant difference was found between the intervention and the control group assessed with the PDMS-2 at 24-months CA. However, a significant positive association was found between dosing and the Gross Motor and Total Motor PDMS-2 scores. Analysis of longitudinal motor performance showed a decreasing motor performance between 6- and 24-months corrected age in both groups.

CONCLUSIONS

There was no difference in motor performance between groups at 24-months corrected age. However, increased intervention dosage was positively associated with improved motor outcome.

Intervención temprana en la unidad de cuidado intensivo neonatal con seguimiento en casa dirigidas a las habilidades motoras de niños prematuros

Introducción: La prematurez es una importante causa de morbimortalidad perinatal asociado a un mayor riesgo neurológico esto debido a que entre las semanas 20 y 37 de gestación ocurre un rápido crecimiento cortical, particularmente de las áreas sensoriomotoras lo cual afecta potencialmente el neurodesarrollo. Desde diferentes campos se han propuesto estrategias que buscan prevenir que el cerebro sea lesionado  por la estimulación intensa y dolorosa conocidas como “Cuidados centrados en el desarrollo”. Sin embargo, se reporta escasa literatura disponible a nivel nacional que proporcione evidencia de la efectividad de la intervención temprana que favorezca el desarrollo de las habilidades motoras de los bebés en la Unidad de Cuidado intensivo neonatal (UCIN).  Por lo cual, el objetivo de este estudio es conocer las estrategias de intervención temprana utilizadas para mejorar las habilidades motoras en bebés prematuros según lo reportado en la literatura. Método: Se llevó a cabo una revisión de literatura en 3 bases de datos (Scopus, Clinicalkey y ScienceDirect) durante los años 2016 a 2020. Resultados: Se revisaron 7 artículos cuyo idioma prevalente es el inglés sobre estrategias de intervención que inician en la UCIN y continúan con seguimiento en el hogar. Conclusiones: En algunos estudios no se logra evidenciar claramente una dosificación de las intervenciones realizadas. A su vez, la participación activa de los padres es fundamental para la adquisición de habilidades motoras en esta población, donde el fisioterapeuta es primordial en el entrenamiento, guía y acompañamiento del proceso con la familia.    

General movement optimality score and general movements trajectories following early parent-administrated physiotherapy in the neonatal intensive care unit

BACKGROUND

The Prechtl General Movement Assessment (GMA) is a reliable tool for the functional assessment of the young nervous system. It is based on a global assessment of the quality of infants' movements. In addition, detailed steps of assessment have been developed - one for preterm and term age, and one for use between 3 and 5 months. One potential benefit of such a detailed analysis is the documentation of subtle changes in the infants' spontaneous movements caused by early intervention.

AIM

To present detailed scores of the infants' general movements (GMs) at preterm age, and of the infants' motor repertoire at 3 months' postterm age (PTA), for infants having participated in a randomized controlled trial (RCT) of early intervention, and to examine possible group differences. In addition, the aim is also to present the GMA from preterm to 3 months' PTA, comparing the intervention and the control group.

STUDY DESIGN

A retrospective study on infants who had participated in an RCT of parent-administered early intervention.

SUBJECTS

141 infants born very preterm.

OUTCOME MEASURES

GMA, "Detailed Assessment of General Movements During Preterm and Term Age" and "Assessment of Motor Repertoire at 3 to 5 months".

RESULTS

The GMA and the detailed assessments of GMs conducted at 36 weeks' post menstrual age (PMA) showed the same distribution of normal and abnormal movements in both the intervention and in the control group, as did the assessment of motor repertoire at 3 months' PTA.

CONCLUSION

Neither the GMA nor the detailed assessments of GMs at 36 weeks' PMA and of the motor repertoire at 13 weeks' PTA suggest that early intervention, performed before term, changes the GMs of very preterm-born infants.

Effectiveness of Early Physiotherapy in an Infant With a High Risk of Developmental Delay

Premature birth is the most common cause for a stay in the neonatal intensive care unit (NICU) among neonates. Premature birth leads to prematurity, which is associated with complications such as respiratory distress syndrome (RDS), hyperbilirubinemia, gastroesophageal reflux (GERD), intraventricular hemorrhage (periventricular leukomalacia), retinopathy of prematurity (ROP), and so on. These secondary complications are of great concern and need to be handled with care to prevent the further deterioration of the quality of life of the baby as he grows. So, the early physiotherapeutic interventional approach comes into light and plays an important role in neonatal care.This case study demonstrates an infant boy of seven months chronological age, who had a preterm birth history with a poor APGAR (Appearance, Pulse, Grimace, Activity, and Respiration) score and NICU stay during the first three months of life. He approached the physiotherapy outpatient department with a complaint of delayed motor milestones like an absence of head holding, rolling, opening of hand, as well as delayed social-emotional development, Ryles tube (RT) in situ, with frequent episodes of GERD, neck rotated to the left side, high irritability, tactile defensiveness of both hands, and difficulty in regulating his sensory systems. Outcome measures used were gross motor function measure (GMFM), sensory profile, and rotating chair test. Early interventional physiotherapy was given including neurodevelopmental techniques (NDT), oromotor stimulation, sensory integration, passive stretching, and myofascial release for six days per week with each session of 45 minutes. The results demonstrated the achievement of motor milestones till sitting independently, reduced episodes of GERD, discontinued RT in situ, improved mobility of neck on both sides, reduced irritability, and started reaching, grasping along with bimanual tasks.

Early combined rehabilitation intervention to improve the short-term prognosis of premature infants

Background

To explore the clinical effect of early combined rehabilitation intervention on premature infants in the neonatal intensive care unit (NICU).

Methods

Premature infants with gestational ages less than 32 weeks or birth weights less than 1500 g were included in the present study.The participants were divided into the intervention group and control group. All infants received the current routine treatment based on the clinical guidelines, and the intervention group was additionally treated by visual and auditory stimulation, oral motor function, respiratory function and neurodevelopmental training. The following clinical outcomes were compared: durations of oxygen supplementation and indwelling gastric tube use; incidences of retinopathy of prematurity (ROP) and neonatal necrotizing enterocolitis (NEC); Sliverman scores; incidences of bronchopulmonary dysplasia (BPD) and intraventricular haemorrhage; days of hospitalization; and neurodevelopmental outcomes. Datas were analysed using the following statistical tests: the chi-square test, the independent samples or paired t test, repeated measures ANOVA, and the Wilcoxon rank sum test.

Results

Compared with those in the control group, premature infants in the intervention group had shorter durations of oxygen supplementation and indwelling gastric tube use, fewer hospitalization days and lower incidences of ROP, BPD, and NEC.The intervention group had lower Sliverman scores and higher Ballard neuromuscular scores than the control group.

Conclusion

Early combined rehabilitation intervention can improve the short-term clinical outcomes of premature infants.

Effect of cerebrolysin on neurodevelopmental outcome of high risk preterm infants: A randomized controlled trial

BACKGROUND

A significant proportion of preterm infants experience developmental delay despite receiving a post discharge early interventional care. Cerebrolysin is a peptide mixture which acts similar to endogenous neurotrophic factors through promoting neurogenesis and enhancing neuronal plasticity.

OBJECTIVE

To compare the effect of Cerebrolysin plus routine intervention program versus routine intervention program alone on the outcome of preterm infants at high risk for neurodevelopmental delay.

METHODS

In a randomized controlled trial, high-risk preterm infants <  32 weeks' gestation who have abnormal neurological assessment at two months corrected post-natal age were randomized at 6 months corrected post natal age to receive either early intervention program or early intervention program plus Cerebrolysin injection of 0.1 mL/kg body weight every week for 3 months as an adjuvant therapy. The primary outcome was the rate of failure of the gross motor assessment at 12 months of corrected age and secondary outcomes included fine motor, language, and personal social development at 12 months corrected post-natal age as assessed by Denver Developmental Screening Test II.

RESULTS

Cerebrolysin group had a significant lower number of infants diagnosed with failed gross motor development compared to infants in the routine intervention group [10 (33%) versus 21 (70%), p = 0.009]. Cerebrolysin group had a significant lower number of infants diagnosed with failed fine motor, language and personal social development compared to infants in the routine intervention group.

CONCLUSION

Cerebrolysin, as an adjuvant therapy to routine early interventional care, may improve gross motor development of high-risk preterm infants at 12 months corrected post-natal age.

A guided participation nursing intervention to theraupeutic positioning and care (GP_Posit) for mothers of preterm infants: protocol of a pilot randomized controlled trial

Background

In the NICU, interventions intended to enhance maternal sensitivity are indicated in order to optimize preterm infant development and long-term mother-infant attachment. A novel nursing intervention was developed following a theory-oriented methodology and is based upon the guided participation theory for mothers to participate in their preterm infant's therapeutic POSITioning and care (GP_Posit). The primary objective of this study is to evaluate the feasibility and acceptability of (i) the study design; and (ii) the experimental GP_Posit nursing intervention during NICU hospitalization. The secondary objective is to estimate the preliminary effects of GP_Posit on maternal and preterm infant outcomes.

Methods

A pilot parallel-group randomized clinical trial (RCT) was designed where mother-preterm infant dyads are being recruited and randomized to a control group (usual care) or experimental group (GP_Posit intervention). Data collection includes feasibility and acceptability data as well as preliminary effects on maternal sensitivity and infant neurodevelopment. Ethical approval from the University Hospital ethical board was obtained in January 2018 (2017-1540).

Discussion

Data collection for this pilot study is expected to end in 2020. Results of this pilot study will inform about the feasibility and acceptability of the study design and GP_Posit intervention, a nursing intervention having the potential to favor maternal sensitivity and infant neurodevelopment in the NICU and guide the elaboration of a large-scale RCT.

Trial registration

clinicaltrial.gov, NCT03677752. Registered 19 September 2018.

Effects of a Parent-Administered Exercise Program in the Neonatal Intensive Care Unit: Dose Does Matter-A Randomized Controlled Trial

BACKGROUND

Despite the risk of delayed motor development in infants born preterm, knowledge about interventions in the neonatal intensive care unitt (NICU) and the effects of dosing is sparse.

OBJECTIVE

The objectives of this study were to examine the effectiveness of a parent-administered exercise program in the NICU on motor outcome at 3 months corrected age (CA) and the effect of dosing on motor performance.

DESIGN

This was a randomized clinical trial.

SETTING

The study was conducted at 3 university hospitals in Tromsø, Trondheim, and Oslo, Norway.

PARTICIPANTS

A total of 153 infants with gestational age <32 weeks at birth were randomly assigned to intervention or control groups.

INTERVENTION

A 3-week parent-administered intervention designed to facilitate movements in preterm infants was performed in the NICU. Parents were asked to administer the intervention 10 minutes twice a day.

MEASUREMENTS

Test of Infant Motor Performance (TIMP) was used to assess short-term outcome at 3 months CA.

RESULTS

No significant difference in the TIMP z-score was found between intervention and control groups at follow-up 3 months CA, but a significant positive relationship was found between total intervention dose and TIMP z-scores. The adjusted odds of having a clinical z-score < 0 at 3 months CA was about 6 times higher for infants with less than median intervention time than for infants with a longer intervention time.

LIMITATIONS

The number of infants born before 28 weeks was small. A spillover effect in favor of the control group was possible. We do not know if the infants received physical therapy after discharge from the hospital.

CONCLUSIONS

There was no difference in motor performance between the intervention group and the control group at 3 months CA. However, an increased intervention dose was positively associated with improved motor outcome.

Validation and Reliability of the Test of Infant Motor Performance for Brazilian Infants

Aim: To investigate the validity and reliability of the Portuguese version of the Test of Infant Motor Performance (TIMP) for Brazilian infants.Methods: The study was conducted with 20 health professionals and 655 Brazilian infants (between 34 weeks of Post-Menstrual Age and 17 weeks Corrected Age).Results: (1) Content validity: High concordance among the experts, for language clarity and pertinence, were found (ICC from.74 to .100; AC1 from .87 to 1.00); (2) Inter-rater, intra-rater, and test-retest reliability: Strong inter (α from .65 to .99) and intra (α from .97 to .99) raters agreement, and high test-retest reliability (r = 1.00; ICC = 1.00); (3) Internal consistency: Excellent internal consistency (α from .71 to .98); (4) Discriminant validity: Significant power to identify groups at-risk for delays (p < .0001); (5) Predictive validity: Capability to predict motor delay (r .55 to .89) was found; and, (6) Concurrent validity: Significant (p < .05) and low correlations at the first months (τ .21 to .24) and weak to moderate correlations at 3 and 4 month-old (τ .42 and .44, respectively) were observed between the TIMP and Alberta Infant Motor Scale.Conclusions: The results provide evidence of validity and reliability of the Portuguese version of the TIMP for Brazilian infants.

Assessment of Parent-Child Interaction Is Important With Infants in Rehabilitation and Can Use High-Tech or Low-Tech Methods

Parents are their infant's first teachers and play a very important role in early development. Early intervention strives to enhance infant participation in the family, and regulations require the engagement of families in assessment and intervention. Infants born preterm or with motor impairments demonstrate altered social engagements that can influence parent-child interaction and the efficacy of therapy services. However, in research focused on the efficacy of interventions or in clinical practice, therapists rarely assess or report on the quality of parent-infant interaction. Understanding these interactions can help determine what perceptual motor opportunities parents provide that can enhance learning. This Perspective article will: (1) present evidence on the need for early assessment and ongoing measurement of parent-infant interaction; (2) describe an example of each of 3 methods for assessment of parent-child interaction-low-tech, low-resource (Dyadic Mutuality Code), low-tech, high-resource (Parent Children Early Relational Assessment), and high-tech, high-resource (customized behavioral coding); (3) compare 3 approaches theoretically highlighting the strengths and weaknesses of each assessment; and (4) reflect on the challenges and value of adding these measures to future research on the efficacy of interventions and clinical practice.

Does a parent-administrated early motor intervention influence general movements and movement character at 3months of age in infants born preterm?

BACKGROUND

Studies of preterm and term-born infants have shown absent fidgety movements and an abnormal movement character to be related to brain lesions and unfavourable neurological outcomes.

AIMS

The present study examines what effect a parent-administered early intervention program applied to preterm infants in a randomised control trial (RCT) between 34 and 36weeks gestational age has on their fidgety movements and overall movement character at three months of age.

STUDY DESIGN

The study was part of the RCT in an early intervention programme including preterm infants born between 2010 and 2014 at three Norwegian university hospitals.

SUBJECTS

130 preterm infants participated in the study, with 59 of them in the control group and 71 in the intervention group.

OUTCOME MEASURES

Fidgety movements and overall movement character at three months corrected age.

RESULTS

No difference was found between the intervention group and the control group in terms of fidgety movements or movement character. Approximately half of the infants in both groups showed an abnormal movement character.

CONCLUSION

No evidence was found in this RCT to suggest that an intervention at 34 to 37weeks gestational age has a significant effect on the fidgety movements or overall movement character of preterm infants. This is in line with the assumption that absent fidgety movements and an abnormal movement character are due to permanent brain injury and are therefore good predictors for later neurological impairments.

Early Parent-Administered Physical Therapy for Preterm Infants: A Randomized Controlled Trial

OBJECTIVE

To investigate the short-term effect of parent-administered physical therapy in the preterm period on motor performance in medically stable infants.

METHODS

This study was a pragmatic, multicenter, randomized controlled trial including 153 infants born at gestational age ≤32 weeks and randomized to an intervention (n = 74) or a control (n = 79) group. The intervention promoted postural control, head control, and midline orientation. Parents, supervised by a physical therapist, conducted the intervention 10 minutes twice a day for 3 weeks from 34 to 36 weeks' postmenstrual age (PMA). The control group received usual care. The Test of Infant Motor Performance Screening Items was used at baseline and the Test of Infant Motor Performance postintervention (week 37 PMA). Linear mixed models were used to assess change in motor performance between groups from 34 to 37 weeks' PMA by using z scores. Effect size was measured by using Cohen's d.

RESULTS

The mean baseline z score was 0.06 (95% confidence interval, -0.48 to 0.60). After the intervention, there was a significant group difference, indicating a change in motor performance from week 34 to 37 PMA favoring the intervention group. The estimated difference in z scores was 0.42 (95% confidence interval, 0.13 to 0.72; P = .005), and the effect size was 0.40.

CONCLUSIONS

Parent-administered physical therapy conducted before term-equivalent age improved motor performance at 37 weeks' PMA more than conventional care. All infants will be followed up until 2 years' corrected age to evaluate the long-term effects of this brief intervention.

Early developmental intervention programmes provided post hospital discharge to prevent motor and cognitive impairment in preterm infants

BACKGROUND

Infants born preterm are at increased risk of developing cognitive and motor impairment compared with infants born at term. Early developmental interventions have been provided in the clinical setting with the aim of improving overall functional outcomes for these infants. Long-term benefits of these programmes remain unclear.

OBJECTIVES

Primary objective To compare the effectiveness of early developmental intervention programmes provided post hospital discharge to prevent motor or cognitive impairment in preterm (< 37 weeks) infants versus standard medical follow-up of preterm infants at infancy (zero to < three years), preschool age (three to < five years), school age (five to < 18 years) and adulthood (≥ 18 years). Secondary objectives To perform subgroup analyses to determine the following.• Effects of gestational age, birth weight and brain injury (periventricular leukomalacia (PVL)/intraventricular haemorrhage (IVH)) on cognitive and motor outcomes when early intervention is compared with standard follow-up. ∘ Gestational age: < 28 weeks, 28 to < 32 weeks, 32 to < 37 weeks. ∘ Birth weight: < 1000 grams, 1000 to < 1500 grams, 1500 to < 2500 grams. ∘ Brain injury: absence or presence of grade III or grade IV IVH or cystic PVL (or both) or an abnormal ultrasound/magnetic resonance image (MRI) before initiation of the intervention.• Effects of interventions started during inpatient stay with a post-discharge component versus standard follow-up care.• Effects of interventions focused on the parent-infant relationship, infant development or both compared with standard follow-up care.To perform sensitivity analysis to identify the following.• Effects on motor and cognitive impairment when early developmental interventions are provided within high-quality randomised trials with low risk of bias for sequence generation, allocation concealment, blinding of outcome measures and selective reporting bias.

SEARCH METHODS

The search strategy of the Cochrane Neonatal Review Group was used to identify randomised and quasi-randomised controlled trials of early developmental interventions provided post hospital discharge. Two review authors independently searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE Advanced, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsycINFO and EMBASE (1966 to August 2015).

SELECTION CRITERIA

Studies included had to be randomised or quasi-randomised controlled trials of early developmental intervention programmes that began within the first 12 months of life for infants born before 37 weeks' gestational age. Interventions could commence on an inpatient basis but had to include a post-discharge component for inclusion in this review. Outcome measures were not prespecified, other than that they had to assess cognitive outcomes, motor outcomes or both. Rates of cerebral palsy were documented.

DATA COLLECTION AND ANALYSIS

Two independent review authors extracted and entered data. Cognitive and motor outcomes were pooled by four age groups: infancy (zero to < three years), preschool age (three to < five years), school age (five to < 18 years) and adulthood (≥ 18 years). Meta-analysis using RevMan 5.1 was carried out to determine the effects of early developmental interventions at each age range. Subgroup analyses focused on gestational age, birth weight, brain injury, commencement of the intervention, focus of the intervention and study quality.

MAIN RESULTS

Twenty-five studies met the inclusion criteria (3615 randomly assigned participants). Only 12 of these studies were randomised controlled trials with appropriate allocation concealment. Variability was evident with regard to focus and intensity of the intervention, participant characteristics and length of follow-up. Meta-analysis led to the conclusion that intervention improved cognitive outcomes at infancy (developmental quotient (DQ): standardised mean difference (SMD) 0.32 standard deviations (SDs), 95% confidence interval (CI) 0.16 to 0.47; P value < 0.001; 16 studies; 2372 participants) and at preschool age (intelligence quotient (IQ); SMD 0.43 SDs, 95% CI 0.32 to 0.54; P value < 0.001; eight studies; 1436 participants). However, this effect was not sustained at school age (IQ: SMD 0.18 SDs, 95% CI -0.08 to 0.43; P value = 0.17; five studies; 1372 participants). Heterogeneity between studies for cognitive outcomes at infancy and at school age was significant. With regards to motor outcomes, meta-analysis of 12 studies showed a significant effect in favour of early developmental interventions at infancy only; however, this effect was small (motor scale DQ: SMD 0.10 SDs, 95% CI 0.01 to 0.19; P value = 0.03; 12 studies; 1895 participants). No effect was noted on the rate of cerebral palsy among survivors (risk ratio (RR) 0.82, 95% CI 0.52 to 1.27; seven studies; 985 participants). Little evidence showed a positive effect on motor outcomes in the long term, but only five included studies reported outcomes at preschool age (n = 3) or at school age (n = 2).

AUTHORS' CONCLUSIONS

Early intervention programmes for preterm infants have a positive influence on cognitive and motor outcomes during infancy, with cognitive benefits persisting into preschool age. A great deal of heterogeneity between studies was due to the variety of early developmental intervention programmes tested and to gestational ages of included preterm infants; thus, comparisons of intervention programmes were limited. Further research is needed to determine which early developmental interventions are most effective in improving cognitive and motor outcomes, and to discern the longer-term effects of these programmes.

Arthrogryposis in infancy, multidisciplinary approach: case report

BACKGROUND

Arthrogryposis multiplex congenita is an etiopathogenetically heterogeneous disorder characterised by non-progressive multiple intra-articular contractures, which can be recognised at birth. The frequency is estimated at 1 in 3,000 newborns. Etiopathogenesis of arthrogryposis is multifactorial.

CASE PRESENTATION

We report first 26 weeks of life of a boy with severe arthrogryposis. Owing to the integrated rehabilitation approach and orthopaedic treatment a visible improvement in the range of motion as well as the functionality of the child was achieved. This article proposes a cooperation of various specialists: paediatrician, orthopaedist, specialist of medical rehabilitation and physiotherapist.

CONCLUSIONS

Rehabilitation of a child with arthrogryposis should be early, comprehensive and multidisciplinary. Corrective treatment of knee and hip joints in infants with arthrogryposis should be preceded by the ultrasound control. There are no reports in the literature on the ultrasound imaging techniques which can be used prior to the planned orthopaedic and rehabilitative treatment in infants with arthrogryposis. The experience of our team indicates that such an approach allows to minimise the diagnostic errors and to maintain an effective treatment without the risk of joint destabilisation.

Assessment and stability of early learning abilities in preterm and full-term infants across the first two years of life

Infants born preterm have increased risk for learning disabilities yet we lack assessments to successfully detect these disabilities in early life. We followed 23 full-term and 29 preterm infants from birth through 24 months to assess for differences in and stability of learning abilities across time. Measures included the Bayley-III cognitive subscale, the mobile paradigm assessment, and a means-end learning assessment. Preterm infants had poorer performance on measures of cognition and learning across the first two years of life. Learning performance at 3-4 months was consistent with learning performance at 12-24 months of age. At 3-4 months, the mobile paradigm had better sensitivity and predictive values for predicting 24-month cognitive delays on the Bayley-III than did the Bayley-III itself. At 12-18 months, the means-end learning assessment had better sensitivity than the Bayley-III for identifying 24-month cognitive delays on the Bayley-III. The results suggest that: (1) infants born preterm may demonstrate learning differences as early as the first few months of life, (2) learning differences identified in the first months of life are likely to persist throughout the second year of life, and (3) learning assessments that measure how infants and toddlers use their typical behaviors to problem-solve to control external events may be more effective than traditional standardized assessment tools for detecting early learning delays.

Early developmental intervention programmes post-hospital discharge to prevent motor and cognitive impairments in preterm infants

BACKGROUND

Infants born preterm are at increased risk of developing cognitive and motor impairments compared with infants born at term. Early developmental interventions have been used in the clinical setting with the aim of improving the overall functional outcome for these infants. However, the long-term benefit of these programmes remains unclear.

OBJECTIVES

To review the effectiveness of early developmental intervention post-discharge from hospital for preterm (< 37 weeks) infants on motor or cognitive development.

SEARCH METHODS

The Cochrane Neonatal Review group search strategy was used to identify randomised and quasi-randomised controlled trials of early developmental interventions post hospital discharge. Two review authors independently searched the Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library), MEDLINE Advanced, CINAHL, PsycINFO and EMBASE (1966 through to October 2012).

SELECTION CRITERIA

Studies included had to be randomised or quasi-randomised controlled trials of early developmental intervention programmes that began within the first 12 months of life for infants born at < 37 weeks with no major congenital abnormalities. Intervention could commence as an inpatient; however, a post-discharge component was necessary to be included in this review. The outcome measures were not pre-specified other than that they had to assess cognitive ability, motor ability or both. The rates of cerebral palsy were also documented.

DATA COLLECTION AND ANALYSIS

Data were extracted and entered by two independent review authors. Cognitive and motor outcomes were pooled in four age groups - infancy (zero to < three years), pre-school age (three to < five years), school age (five to 17 years) and adulthood (≥ 18 years). Meta-analysis was carried out using RevMan 5.1 to determine the effects of early developmental intervention at each age range. Subgroup analysis was carried out in relation to gestational age, birthweight, brain injury, commencement of intervention and focus of intervention.

MAIN RESULTS

Twenty-one studies met the inclusion criteria (3133 randomised patients). Only 10 of these studies were RCTs with appropriate allocation concealment. There was variability with regard to the focus and intensity of the intervention, subject characteristics and in length of follow-up. Meta-analysis concluded that intervention improved cognitive outcomes at infant age (developmental quotient (DQ): standardised mean difference (SMD) 0.31 standard deviations (SD); 95% confidence interval (CI) 0.13 to 0.50; P < 0.001; 13 studies; 2147 patients), and pre-school age (intelligence quotient (IQ); SMD 0.45 SD; 95% CI 0.34 to 0.57; P < 0.001; six studies; 1276 patients). However, this effect was not sustained at school age (IQ: SMD 0.25 SD; 95% CI -0.10 to 0.61; P = 0.16; five studies; 1242 patients). There was significant heterogeneity between studies for cognitive outcomes at infant and school ages. In regards to motor outcomes, meta-analysis of 10 studies showed a significant effect in favour of early developmental interventions; however, the effect was small (motor scale developmental quotient (DQ): SMD 0.10 SD; 95% CI 0.00 to 0.19; P = 0.04; 10 studies; 1745 patients). There was no effect on the rate of cerebral palsy in survivors; risk ratio (RR) 0.89; 95% CI 0.55 to 1.44; five studies; 737 patients). There was little evidence for a positive effect on motor outcomes in the long term, with only five of the included studies reporting outcomes at pre-school or school age.

AUTHORS' CONCLUSIONS

Early intervention programmes for preterm infants have a positive influence on cognitive and motor outcomes during infancy, with the cognitive benefits persisting into pre-school age. There is a great deal of heterogeneity between studies due to the variety of early developmental intervention programmes trialled and gestational ages of the preterm infants included, which limits the comparisons of intervention programmes. Further research is needed to determine which early developmental interventions are the most effective at improving cognitive and motor outcomes, and on the longer-term effects of these programmes.