Autonomic regulation of preterm infants is enhanced by Family Nurture Intervention.
calming cycle theory
emotional connection
heart period
heart rate variability
polyvagal theory
respiratory sinus arrhythmia
vagal efficiency
Journal
Developmental psychobiology
ISSN: 1098-2302
Titre abrégé: Dev Psychobiol
Pays: United States
ID NLM: 0164074
Informations de publication
Date de publication:
09 2019
09 2019
Historique:
received:
23
07
2018
revised:
10
12
2018
accepted:
23
12
2018
pubmed:
15
3
2019
medline:
1
4
2020
entrez:
15
3
2019
Statut:
ppublish
Résumé
Preterm infants have maturational delays in several neurobehavioral systems. This study assesses the impact of the Family Nurture Intervention (FNI) in the neonatal intensive care unit (NICU) on the maturation of autonomic regulation of preterm infants. Preterm infants born at 26-34 weeks postmenstrual age (PMA) were assigned to groups receiving either standard care (SC) or SC plus FNI, using a randomized controlled trial design. At two collection time points, approximately 35 weeks and 41 weeks PMA, electrocardiograms (ECG) were monitored for approximately 1 hour during sleep. Heart rate and respiratory sinus arrhythmia (RSA) were quantified from the ECG. Across the two time points, the FNI group exhibited greater increases in RSA (Cohen's d = 0.35) and slope between RSA and heart rate, as a measure of vagal efficiency (Cohen's d = 0.62). These results document that FNI resulted in enhanced autonomic regulation consistent with greater maturation of cardiac function. These and previous findings strongly suggest that facilitating early nurturing interactions and emotional connection between preterm infants and their mothers is a practicable and effective means of optimizing postnatal development in preterm infants. Interpretation of these autonomic function results also enriches our understanding of the potential long-term beneficial outcomes of FNI by drawing upon polyvagal theory, which explains how autonomic state provides a neurophysiological platform for optimal co-regulation between infant and caregiver, and by drawing upon calming cycle theory, which provides a model for understanding how repeated mother/infant calming interactions positively condition autonomic state and reinforce approach, prosocial behaviors.
Types de publication
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
Twin Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
942-952Informations de copyright
© 2019 Wiley Periodicals, Inc.
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