van Oudgaarden E, Johnson N
Department of Obstetrics and Gynaecology, Leeds General Infirmary, U.K.
J Perinat Med. 1994;22(4):295-300. doi: 10.1515/jpme.1994.22.4.295.
The aim of this prospective observational study was to see if high quality fetal pulse oximetry signals can be obtained from the fetus before labour. It was carried out in Labour Ward, Clarendon Wing, Leeds General Infirmary and St. James Hospital, Leeds. We studied Caucasian term fetuses antenatally and 20 fetuses during labour. Antenatal fetal oxygen saturation was measured using a sensor passed through the cervix onto the membranes covering the fetus before the onset of labour. The quality of these signals was compared to data obtained from 20 fetuses monitored during active labour after amniotomy. High quality pulse oximetry signals were obtained for less than 1% of the monitoring time before the onset of labour (95% CI 0-2.5%). High quality data was seen 38.6% of the time once the membranes were ruptured and the head descendend into the pelvis. With present technology fetal pulse oximetry will not contribute to antenatal fetal assessment.
这项前瞻性观察性研究的目的是确定能否在分娩前从胎儿获取高质量的胎儿脉搏血氧饱和度信号。该研究在利兹综合医院克拉伦登院区产科病房以及利兹圣詹姆斯医院开展。我们对白人足月胎儿进行了产前研究，并在分娩期间研究了20例胎儿。产前胎儿血氧饱和度是通过在分娩开始前将传感器经宫颈放置在覆盖胎儿的胎膜上来测量的。将这些信号的质量与在人工破膜后活跃期分娩期间监测的20例胎儿所获得的数据进行比较。在分娩开始前，高质量脉搏血氧饱和度信号的获取时间不到监测时间的1%（95%置信区间0-2.5%）。一旦胎膜破裂且胎头入盆，高质量数据出现的时间为38.6%。就目前的技术而言，胎儿脉搏血氧饱和度检测对产前胎儿评估并无帮助。
