Fendel H, Funk A, Jörn H, Gans A
Ltd. Oberarzt der Frauenklinik, Medizinischen Fakultät, RWTH, Aachen.
Z Geburtshilfe Perinatol. 1990 Nov-Dec;194(6):272-4.
The successful results obtained using Doppler sonography for antepartal diagnosis gave cause to use the method during labor. For this purpose doppler measurements of the intern fetal carotid artery of a group of 7 patients with normal course of pregnancy were made and a continuous direct CTG was recorded simultaneously. The Doppler parameter, the S/D-ratio, for the contraction phases were compared with those of the contraction--free phases. During the contraction phase the S/D-ratio was higher than during the relaxation period of the uterus. The difference between these values were proved to be statistically significant. A comparison of the doppler parameter of the patients at onset of labor and the patients at the end of labor showed, that the S/D-ratio increased significantly at the end of labor. This result demonstrates, that the intravascular resistance in the fetal carotid artery increased due to the cephalic pressure.
使用多普勒超声进行产前诊断所取得的成功结果促使人们在分娩期间使用该方法。为此，对一组7名妊娠过程正常的患者进行了胎儿颈内动脉的多普勒测量，并同时记录了连续的直接胎心宫缩图。将收缩期的多普勒参数S/D比值与无收缩期的参数进行了比较。在收缩期，S/D比值高于子宫舒张期。这些值之间的差异被证明具有统计学意义。对分娩开始时和分娩结束时患者的多普勒参数进行比较显示，分娩结束时S/D比值显著增加。这一结果表明，由于头部受压，胎儿颈内动脉的血管内阻力增加。
