Characterization of cardiorespiratory phase synchronization and directionality in late premature and full term infants

Physiological Measurement
M LucchiniM G Signorini

Abstract

Though the mutual influence of cardiovascular and respiratory rhythms in healthy newborns has been documented, its full characterization is still pending. In general, the activity of many physiological subsystems has a well-expressed rhythmic character, and often an interdependency between physiological rhythms emerges early in development. Traditional methods of data analysis only address the quantification of the strength of subsystem interactions. In this work, we will investigate system interrelationships in terms of the possible presence of causal or directional interplays. In this paper, we propose a methodological application that quantifies phase coupling and its directionality in a population of newborn infants born between 35 and 40 weeks of gestational age (GA). The aim is to assess whether GA at birth significantly influences the development of phase synchronization and the directionality of the coupling between the cardiovascular and respiratory system activity. Several studies indicating irregular cardiorespiratory coupling as a leading cause of several pathologies underscore the need to investigate this phenomenon in this at-risk population. Results from our investigation show a different directionality profile a...Continue Reading

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Citations

Nov 2, 2018·Journal of Applied Physiology·Rohan JoshiPeter Andriessen
Sep 26, 2020·Frontiers in Physiology·Maristella LucchiniWilliam P Fifer
May 22, 2019·Biomedical Engineering Online·Yumiao Ren, Jianbao Zhang
Sep 28, 2021·Physiological Measurement·John MoralesCarolina Varon

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