脐血流S/D比值在监测高危妊娠中的应用

Application of S/D Ratio of Umbilical Blood Flow in Monitoring High Risk Pregnancy(HRP)

多普勒超声脐血流S/D比值测定具有操作方便、对胎儿无损害等特点,是估价胎儿情况的一种有效方法,在产科高危妊娠的监测中应用广泛。现阐述S/D比值的意义及正常值的范围,并就S/D比值异常的原因及联合胎动、胎心无应激试验、催产素激惹试验及胎儿胎盘生物物理五项评分等方法监测高危妊娠、判断胎儿宫内安危状况予以简要综述。

The determination of umbilical artery S/D ratio with Doppler bloodflow monitor in high risk pregnancy（HRP） is an effectice method to evaluating fetal condition with simple operation and harmless to fetal, and has been used widely in monitoring the HRP in gynaecology. This article not only describes the significance of S/D ratio and the scope of its normal value, the reasons resulting in the abnormal S/D ratio, but also reviews the method used to monitor HRP and to evaluate the fetal safety and danger, which is the combination of five aspects scoring in fetal movement, non-stress test of fetal heart, oxytocin challenge test, and fetal placenta biophysical profile.