Key result
Preterm neonates exhibited lower PNN50, NN50, and HF compared to full-term neonates, reflecting reduced parasympathetic activity, though both showed autonomic coactivation during parent interaction.
Why the study?
Preterm neonates show decreased HRV compared to full-term neonates, prompting comparison of HRV metrics across transitions between rest and neonate-parent interaction.
Does spontaneous interaction with parents affect heart rate variability differently in preterm versus full-term neonates?
Observational (n=46)
Does spontaneous interaction with parents affect heart rate variability differently in preterm versus full-term neonates?
Preterm neonates exhibit reduced parasympathetic activity compared to full-term neonates, but spontaneous parent interaction may support autonomic nervous system maturation in both groups.
Answers are grounded in this paper and cite their sources.
HRV differences during parent interactions in preterm neonates remain hypothesis-generating; larger studies needed before clinical monitoring applications.
BACKGROUND: Preterm neonates show decreased HRV compared to those at full-term. We compared HRV metrics between preterm and full-term neonates in transfer periods from neonate rest state to neonate-parent interaction, and vice versa. METHODS: Short-term recordings of the HRV parameters (time and frequency-domain indices and non-linear measurements) of 28 premature healthy neonates were compared with the metrics of 18 full-term neonates. HRV recordings were performed at home at term-equivalent age and HRV metrics were compared between the following transfer periods: from first rest state of the neonate (TI1) to a period in which the neonate interacted with the first parent (TI2), from TI2 to a second neonate rest state (TI3), and from TI3 to a period of neonate interaction with the second parent (TI4). RESULTS: For the whole HRV recording period, PNN50, NN50 and HF (%) was lower for preterm neonates compared to full-terms. These findings support the reduced parasympathetic activity of preterm compared to full-term neonates. The results of comparisons between transfer period simply a common coactivation of SNS and PNS systems for both full and pre-term neonates. CONCLUSIONS: Spontaneous interaction with the parent may reinforce both full and pre-term neonates' ANS maturation.
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Kokkinaki et al. (2023) conducted an observational in Premature and full-term neonates (n=46). Premature birth (preterm neonates) vs. Full-term neonates was evaluated on Heart rate variability parameters (PNN50, NN50, HF) during rest and interaction transfer periods. Preterm neonates exhibited lower PNN50, NN50, and HF compared to full-term neonates, reflecting reduced parasympathetic activity, though both showed autonomic coactivation during parent interaction.
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