Key result
Visibility graph analysis demonstrated that cardiorespiratory interaction characteristics in preterm infants differ significantly across sleep states.
Why the study?
The interaction between cardiac and respiratory activities across sleep states in preterm infants had not been studied before.
Visibility graph analysis reveals significant differences in cardiorespiratory interactions across sleep states in preterm infants.
Suggests visibility graph analysis could inform sleep-state monitoring in preterm infants; leaves open clinical utility pending prospective validation.
The interaction between cardiac and respiratory activities is investigated in preterm infant sleep using an advanced nonlinear method (visibility graph) and some important characteristics are shown to be significantly different across sleep states, which has not been studied before.
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Zhang et al. (2021) studied this question. Visibility graph analysis demonstrated that cardiorespiratory interaction characteristics in preterm infants differ significantly across sleep states.
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