Key result
In sleeping term infants, sympathetic vascular modulation decreases with age while parasympathetic control of heart rate is strengthened over the first 6 months of life.
Why the study?
How does autonomic control of heart rate and blood pressure mature during sleep in the first 6 months of life in term-born infants?
Population
31 term infants studied longitudinally at 2-4 weeks, 2-3 months, and 5-6 months postnatal age.
Design
Cohort
Follow-up
6 months
Authors
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Normative infant BP/HR maturation data during sleep may inform SIDS risk assessment; leaves open causal links requiring prospective trials.
Cohort (n=31)
How does autonomic control of heart rate and blood pressure mature during sleep in the first 6 months of life in term-born infants?
Normative data shows that in sleeping term infants, sympathetic vascular modulation decreases and parasympathetic control of heart rate strengthens over the first 6 months of life.
Yiallourou et al. (2012) conducted a cohort in Normal development of blood pressure control (n=31). Increasing postnatal age vs. Earlier postnatal age was evaluated on Spectral indices of blood pressure and heart rate variability (BPV and HRV). In sleeping term infants, sympathetic vascular modulation decreases with age while parasympathetic control of heart rate is strengthened over the first 6 months of life.
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