Nonstationary coupling between heart rate and perfusion index in extremely preterm infants in the first day of life.

John M O'TooleEugene M DempseyDavid Van Laere

Published in: Physiological measurement (2021)

Nonstationary features are necessary to distinguish different coupling types for complex biomedical systems. Time-varying directional coupling between PI and HR provides objective and independent biomarkers of adverse outcome in extremely preterm infants.

Keyphrases

preterm infants
heart rate
low birth weight
room temperature
heart rate variability
blood pressure
emergency department
computed tomography
electron transfer
magnetic resonance imaging
adverse drug