Key result
Increasing postconceptional age links to lower HR and higher HRV in low birth weight infants.
Population
61 healthy, growing low birth weight infants, weighing 795-1600 g at birth and ranging between 31-38 weeks…
Design
Cohort
Authors
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Supports autonomic maturation in low birth weight infants; hypothesis-generating for HRV monitoring before clinical adoption.
Observational (n=61)
In low birth weight infants, heart rate decreases and heart rate variability increases between 31 and 38 weeks postconceptional age, reflecting the maturation of autonomic cardio-regulatory activity.
Sahni et al. (2000) conducted an observational in low birth weight infants (n=61). Postconceptional age was evaluated on Heart rate and heart rate variability. Increasing postconceptional age from 31 to 38 weeks in low birth weight infants was associated with a decrease in heart rate and an increase in heart rate variability.
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