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  • Title: [Movement and heart acceleration behavior of eutrophic fetuses in the early and late dilatation period].
    Author: Gross W, Seewald HJ, Eichhorn KH, Michels W, Reiber W.
    Journal: Zentralbl Gynakol; 1989; 111(20):1341-6. PubMed ID: 2686293.
    Abstract:
    The degree of fetal respiratory and body movements as well as of fetal heart rate reactivity was checked by synchronous ultrasonic and cardiographic monitoring of 18 normotrophic fetuses in the early and late dilation period. Apart from the fetal respiratory movements, which could no longer be observed in the late dilatation period, the degree of fetal body movements remained unaffected during the birth process. In the late dilatation period, the mean amplitude of heart rate accelerations occurring in association with fetal body movements was significantly lower than in the early dilatation period. In the unimpaired normotrophic fetus, however, the reactivity of the fetal cardiovascular system increased during the birth process in relation to the ratio of the amplitude of heart rate accelerations and the duration of associated fetal body movements. Hence, a decrease in fetal heart rate reactivity signals intranatal disturbance of the materno-utero-placento-fetal entity.
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