Abstract
Complete reduction of uterine blood flow (UBF) results in a decline of oxygen saturation (SO2) in the fetal arterial blood. Fetal heart rate (FHR) starts to decelerate when oxygen saturation falls about 10%–15% (Künzel et al. 1983) independent of the status of fetal oxygenation prior to the reduction of uterine blood flow. There was no critical limit of oxygen saturation for the induction of deceleration. The decrease in FHR is accompanied by a rise in blood pressure and respiratory and metabolic acidosis with considerable variability in quantity and in time (Künzel et al. 1983).
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Itskovitz J, Goetzmann BW, Rudolph AM (1982) The mechanism of late deceleration of the heart rate and its relationship to oxygenation in normoxemic and chronically hypoxemic fetal lambs. Am J Obstet Gynecol 142:66
Jensen A, Künzel W, Kastendieck E (1982) Epinephrine and norepinephrine release in the fetus after repeated hypoxia. J Perinat Med [Suppl 2] 10:109
Kastendieck E, Künzel W, Kurz CS (1980) Utilization of lactic acid and cardiovascular response in the sheep fetus receiving an infusion of lactic acid. Arch Gynäkol 230:21
Kastendieck E, Paulick R, Martius J, Jensen A (1982) Einfluß der metabolischen Azidose auf Herzfrequenz, Blutdruck, Oxygenation, Säure-Basen-Status, Glucose- und Elektrolytkonzentrationen des Feten und Geschwindigkeit der fetalen Milchsäureelemination im chronischen Schaftexperiment. In: Dudenhausen JW, Saling E (Hrsg) Perinatale Medizin, Vol 9. Thieme, Stuttgart
Künzel W, Kurz CS, Kastendieck E (1981) Die Variabilität der fetalen Herzfrequenzreaktion auf die Reduktion der uterinen Durchblutung. Z Geburtshilfe Perinat 185:343
Künzel W, Kastendieck E, Hohmann E (1983) Heart rate and blood pressure response and metabolic changes in the sheep fetus following reduction of uterine blood flow. Gynecol Obstet Invest 15:300
Moll W, Kastendieck E (1978) Accumulation and disappearance of lactate in a fetus with a hemochorial placenta. The role of placental transfer and fetal metabolism. J Perinat Med 6:246
Parer JT, Krueger TR, Harris JL (1980) Fetal oxygen consumption and mechanisms of heart rate response during artificially produced late decelerations of fetal heart rate in sheep. Am J Obstet Gynecol 136:478
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1985 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Kastendieck, E., Künzel, W., Jensen, A. (1985). Variability of Fetal Heart Rate Deceleration, Blood Pressure, and Acid Base Alterations During Defined Repetitive Hypoxic Stress. In: Künzel, W. (eds) Fetal Heart Rate Monitoring. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-70358-4_11
Download citation
DOI: https://doi.org/10.1007/978-3-642-70358-4_11
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-70360-7
Online ISBN: 978-3-642-70358-4
eBook Packages: Springer Book Archive