Abstract:
OBJECTIVE: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. APPROACH: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. MAIN RESULTS:Results from our investigation show a different directionality profile as a function of GA and sleep state. SIGNIFICANCE:These findings are a contribution to the understanding of higher risk for the documented negative outcomes in the late preterm population. Moreover, these parameters could provide a tool for the development of early markers of cardiorespiratory dysregulation in infants.
journal_name
Physiol Measjournal_title
Physiological measurementauthors
Lucchini M,Pini N,Fifer WP,Burtchen N,Signorini MGdoi
10.1088/1361-6579/aac553subject
Has Abstractpub_date
2018-06-19 00:00:00pages
064001issue
6eissn
0967-3334issn
1361-6579journal_volume
39pub_type
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