Abstract
Respiratory heart rate variability (respiratory sinus arrhythmia, RSA) is a well-known phenomenon in adults, but its contribution to total heart rate variability (HRV) is small in newborn babies [1]. Fetal HRV is known to increase during fetal breathing movements (FBM) [2, 3], which is thought to be due to RSA. At present there is fairly little frequency-specific information on the relationship between fetal HRV and FBM. In this study we investigated the magnitude of respiratory HRV in chronic fetal and neonatal lamb models using power spectral analysis of heart rate and respirograms.
This research was supported by the Finnish Heart Foundation, Lydia Maria Fund, and Sigrid Juselius Foundation.
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© 1991 Springer-Verlag Berlin Heidelberg
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Metsälä, T., Grönlund, J., Siimes, A., Välimäki, I. (1991). Respiratory Heart Rate Variability in Fetal and Neonatal Lambs. In: Koepchen, HP., Huopaniemi, T. (eds) Cardiorespiratory and Motor Coordination. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-75507-1_28
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DOI: https://doi.org/10.1007/978-3-642-75507-1_28
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-52279-9
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