Oxygen Tension in the Fetal Scalp during Labour

  • J. G. Aarnoudse
  • M. Cornel
  • T. M. Smits
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 191)


During labour uterine contractions cause a decrease in uteroplacental blood flow that results in a reduction of the transfer of oxygen from maternal to fetal blood. Under normal circumstances this intermittent reduction in oxygen supply is well tolerated by the fetus and does not lead to hypoxia and fetal acidosis. If, however, the uteroplacental circulation is already compromised, as in preeclampsia or fetal growth retardation, normal uterine contractions may result in fetal hypoxia and acidosis with temporary or even permanent damage to the central nervous system.


Fetal Heart Rate Needle Electrode Oxygen Electrode Fetal Lamb Fetal Heart Rate Monitoring 
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  1. 1.
    A. Huch, R. Huch, H. Schneider, G. Rooth, Continuous transcutaneous monitoring of fetal oxygen during labour, Br.J. Obstet.Gynaecol. 84:suppl.1,1–37 (1977).PubMedCrossRefGoogle Scholar
  2. 2.
    J.G. Aarnoudse, J.C.W. Crawley, P.A. Flecknell, F.E. Hytten, Scalp blood flow measured by the Xenon clearance technique and transcutaneous PO2 in the fetal lamb. Pediat.Res. 17:982–985 (1983).PubMedCrossRefGoogle Scholar
  3. 3.
    C.A.M. Jansen, P.W. Nathanielsz, Pressure related changes in fetal transcutaneous PO2 measurements. J.Physiol. 308:29 (1980).Google Scholar
  4. 4.
    T.M. Smits, J.G. Aarnoudse, Variability of fetal scalp blood flow during labour: continuous transcutaneous measurement by the laser Doppler technique. Br.J.Obstet.Gynaecol. 91:524–531 (1984).PubMedCrossRefGoogle Scholar
  5. 5.
    M.C. O’Connor, F.E. Hytten, G.D. Zanelli, Is the fetus ‘scalped’ in labour? Lancet ii, 947–949 (1979).CrossRefGoogle Scholar
  6. 6.
    J.G. Aarnoudse, H.J. Huisjes, B. Oeseburg, W.G. Zijlstra, Subcutaneous oxygen tension in the fetal scalp during labour. Continuous monitoring with a needle electrode. Br.J.Obstet. Gynaecol. 88:517–524 (1981).PubMedCrossRefGoogle Scholar
  7. 7.
    M.E. Towell, I. Regier, I. Lysak, D. Sayler, S.P. Bessman, Maternal and fetal tissue PO2 in the pregnant ewe, measured with galvanic PO2 electrodes, in: Oxygen transport to tissue — IV. H.I. Bicher and D.F. Bruley, eds., Adv. Exper. Med. Biol., Vol. 159, Plenum Press, New York and London, p. 37–48 (1983).CrossRefGoogle Scholar
  8. 8.
    M.E. Towell, J. Johnsen, K. Smedstad, M. Andrew, T.L. Vu, Fetal blood and tissue P02 during maternal oxygen breathing. J.Developm.Phys., in press.Google Scholar
  9. 9.
    J.G. Aarnoudse, B. Oeseburg, G. Kwant, A. Zwart, W.G. Zijlstra, H.J. Huisjes, Influence of variations in pH and pCO2 on scalp tissue oxygen tension and carotid arterial oxygen tension in the fetal lamb. Biol.Neonate, 40:252–263 (1981),PubMedCrossRefGoogle Scholar
  10. 10.
    K.J. Staisch, B. Nuwayhid, R.O. Bayer, L. Welsh, C.R. Brinkman, Continuous fetal scalp and carotid artery oxygen tension monitoring in the sheep. Obstet.Gynecol. 47:587 (1976).PubMedGoogle Scholar
  11. 11.
    A. Walker, L. Phillips, L. Powe, C. Wood, A new instrument for the measurement of tissue PO2 of human fetal scalp. Am.J. Obstet.Gynecol. 100:63 (1968).PubMedGoogle Scholar
  12. 12.
    W. Erdmann, S. Kunke, J. Heidenreich, W. Dempsey, H. Günther, H. Schäfer, Clinical experiences with clamp electrodes in fetal scalp for simultaneous PO2 and ECG-registration, in: Oxygen Transport to Tissue. Pharmacology, Mathematical Studies, and Neonatology”, D.F. Bruley and H.I. Bicher, eds., Adv.Exper. Med. Biol., Vol. 37b, Plenum Press, New York — London, p.1129–1133 (1973).Google Scholar
  13. 13.
    H. Belleé, V. Schönjahn, Verhalten des Sauerstoffpartialdruckes in der Kopfschwarte des Feten während der physiologischen Uteruskontraktion. Zentbl.Gynäk. 97:413 (1975).Google Scholar
  14. 14.
    L.S. James, H.O. Marishima, S.S. Daniel, E.T. Bowe, H. Cohen, W.H. Niemann, Mechanism of late deceleration of the fetal heart rate. Am.J.Obstet.Gynecol. 113:578 (1972).PubMedGoogle Scholar

Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • J. G. Aarnoudse
    • 1
  • M. Cornel
    • 1
  • T. M. Smits
    • 1
  1. 1.Dept. of Obstetrics & GynaecologyUniversity HospitalGroningenThe Netherlands

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