Behavioural and cognitive outcomes following an early stress-reduction intervention for very preterm and extremely preterm infants.

BACKGROUND: The landmark findings of the Mother-Infant Transaction Program (MITP) showing improved neurodevelopment of preterm infants following parent-sensitivity training delivered in the neonatal intensive care unit have not been consistently replicated. This study evaluated an MITP-type intervention in terms of neurobehavioural development to preschool age. METHODS: A randomised controlled trial involved 123 very preterm and extremely preterm infants allocated to either a parent-sensitivity intervention (PremieStart, n = 60) or to standard care (n = 63). When children were 2 and 4.5 years corrected age, parents completed the Child Behavior Checklist (CBCL). General development was assessed at 2 years with the Bayley Scales of Infant Development (Bayley-III). At 4.5 years, cognitive functioning was assessed with the Wechsler Preschool and Primary Scale of Intelligence (WPPSI-III) and executive functioning with the NEPSY-II. RESULTS: There were no significant between-group differences in behaviour problems at 2 or 4.5 years, general development at 2 years, or cognitive and executive functioning at 4.5 years. CONCLUSION: Advances in the quality of neonatal intensive care may mean that MITP-type interventions now have limited additional impact on preterm infants' long-term neurobehavioural outcomes. The gestational age of infants and the exact timing of intervention may also affect its efficacy.

Improving the outcome of infants born at <30 weeks' gestation--a randomized controlled trial of preventative care at home.

BACKGROUND: Early developmental interventions to prevent the high rate of neurodevelopmental problems in very preterm children, including cognitive, motor and behavioral impairments, are urgently needed. These interventions should be multi-faceted and include modules for caregivers given their high rates of mental health problems. METHODS/DESIGN: We have designed a randomized controlled trial to assess the effectiveness of a preventative care program delivered at home over the first 12 months of life for infants born very preterm (<30 weeks of gestational age) and their families, compared with standard medical follow-up. The aim of the program, delivered over nine sessions by a team comprising a physiotherapist and psychologist, is to improve infant development (cognitive, motor and language), behavioral regulation, caregiver-child interactions and caregiver mental health at 24 months' corrected age. The infants will be stratified by severity of brain white matter injury (assessed by magnetic resonance imaging) at term equivalent age, and then randomized. At 12 months' corrected age interim outcome measures will include motor development assessed using the Alberta Infant Motor Scale and the Neurological Sensory Motor Developmental Assessment. Caregivers will also complete a questionnaire at this time to obtain information on behavior, parenting, caregiver mental health, and social support. The primary outcomes are at 24 months' corrected age and include cognitive, motor and language development assessed with the Bayley Scales of Infant and Toddler Development (Bayley-III). Secondary outcomes at 24 months include caregiver-child interaction measured using an observational task, and infant behavior, parenting, caregiver mental health and social support measured via standardized parental questionnaires. DISCUSSION: This paper presents the background, study design and protocol for a randomized controlled trial in very preterm infants utilizing a preventative care program in the first year after discharge home designed to improve cognitive, motor and behavioral outcomes of very preterm children and caregiver mental health at two-years' corrected age. CLINICAL TRIAL REGISTRATION NUMBER: ACTRN12605000492651.

Early communication in preterm infants following intervention in the NICU.

BACKGROUND: Despite ongoing improvements in clinical care, preterm infants experience a variety of stressors in the first weeks of life, including necessary medical procedures, which may affect development. Some stress-reduction programmes based in the Neonatal Intensive Care Unit (NICU) have reported a positive impact on development. In particular, trials of the Mother-Infant Transaction Program (MITP) have shown positive short and longer term effects, and are based on training parents to recognise and minimise stress responses in preterm infants. AIMS: To evaluate the impact on early developmental milestones of an enhanced MITP (PremieStart) delivered over an extended period in the NICU. STUDY DESIGN: This was a parallel 2-group randomised controlled trial involving 109 women with 123 infants born at <30weeks gestation assessed initially at term-equivalent age and then at 6 months' corrected-age. RESULTS: Intervention mothers were more sensitive in providing infant care, stressed their infants less, showed greater awareness of, and responded more appropriately to, negative infant cues (p < 0.05 in each case). Intervention infants displayed significantly lower stress when being bathed by mothers at term-equivalent age (p < 0.05). At 6 months corrected-age, intervention infants showed higher mean scores on the Communication and Symbolic Behavior Scales Developmental Profile Infant-Toddler Checklist. The strongest effects appeared in Symbolic behaviour (p = 0.05) and this was reflected in the Total score (p < 0.05). CONCLUSIONS: As significant cognitive and language deficits are reported in longitudinal studies of preterm children, an intervention that improves early infant communication abilities is promising, especially since previous research suggests that the strongest benefits may emerge at later ages.

Preventive care at home for very preterm infants improves infant and caregiver outcomes at 2 years.

OBJECTIVE: The objective of this study was to determine the effects of preventive care at home on child development and primary caregiver mental health at 2 years of age. METHODS: A total of 120 very preterm infants (<30 weeks) were assigned randomly to intervention (n = 61) or control (n = 59) groups. The intervention group received the preventive care program (9 home visits over the first year from a physiotherapist and a psychologist, focusing on the parent-infant relationship, the parents' mental health, and the infant's development); and the control group received standard care. At corrected age of 2 years, developmental outcomes were assessed, and primary caregivers completed the Infant-Toddler Social and Emotional Assessment. The mental health of the primary caregivers was assessed with the Hospital Anxiety and Depression Scale. RESULTS: At 2 years of age, 115 children (96%) were assessed with the Bayley Scales of Infant and Toddler Development III and 100 children (83%) with the Infant-Toddler Social and Emotional Assessment; and 91 (86%) of 106 caregivers completed the Hospital Anxiety and Depression Scale. There were no statistically significant differences in cognitive, language, or motor composite scores between the treatment groups. However, children in the intervention group were reported by their primary caregivers to exhibit less externalizing and dysregulation behaviors and increased competence, compared with control subjects. Primary caregivers in the intervention group reported less anxiety and depression. CONCLUSION: A preventive care program for very preterm infants and their families improved behavioral outcomes for infants and reduced anxiety and depression for primary caregivers.