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Comment
. 2017 Sep 1;595(17):6081-6083.
doi: 10.1113/JP274800.

Reply from Christopher A. Lear, Robert Galinsky, Guido Wassink, Kyohei Yamaguchi, Joanne O. Davidson, Jenny A. Westgate, Laura Bennet and Alistair J. Gunn

Christopher A Lear  1 , Robert Galinsky  1 , Guido Wassink  1 , Kyohei Yamaguchi  1   2 , Joanne O Davidson  1 , Jenny A Westgate  1   3 , Laura Bennet  1 , Alistair J Gunn  1   4
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Comment

Reply from Christopher A. Lear, Robert Galinsky, Guido Wassink, Kyohei Yamaguchi, Joanne O. Davidson, Jenny A. Westgate, Laura Bennet and Alistair J. Gunn

Christopher A Lear et al. J Physiol. .
No abstract available

Keywords: Chemoreflex; Fetal Physiology; Labour; asphyxia; fetal heart rate.

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Figures

Figure 1
Figure 1. Decelerations during umbilical cord occlusions
Time series data in a near‐term fetal sheep (0.8 gestation) showing that during complete umbilical cord occlusion, fetal heart rate falls to a nadir and then partially recovers during a brief umbilical cord occlusion. Thus, resolution of fetal asphyxia is indicated by the return to baseline fetal heart rate, not the start of the increase from nadir. One‐minute complete umbilical cord occlusions were repeated after 1.5 min of reperfusion. The arrows indicate the start of each umbilical cord occlusion. Grey shading indicates each occlusion.
See this image and copyright information in PMC

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References

    1. Althabe O, Aramburú G, Schwarcz RL & Caldeyro‐Barcia R (1969). Influence of the rupture of membranes on compression of the fetal head during labour. In Perinatal Factors Affecting Human Development: Proceedings of the Special Session held during the Eighth Meeting of the PAHO Advisory Committee on Medical Research 10 June 1969, pp. 143–149. Pan American Health Organization, Washington, DC.
    1. Bax M & Nelson KB (1993). Birth asphyxia: a statement. World Federation of Neurology Group. Dev Med Child Neurol 35, 1022–1024. - PubMed
    1. Blanco CE, Dawes GS, Hanson MA & McCooke HB (1984). The response to hypoxia of arterial chemoreceptors in fetal sheep and new‐born lambs. J Physiol 351, 25–37. - PMC - PubMed
    1. Cahill AG, Roehl KA, Odibo AO & Macones GA (2012). Association and prediction of neonatal acidemia. Am J Obstet Gynecol 207, 206.e1–206.e8. - PubMed
    1. Chung F & Hon EH (1959). The electronic evaluation of fetal heart rate. I. With pressure on the fetal skull. Obstet Gynecol 13, 633–640. - PubMed

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