Carbonne B, Audibert F, Segard L, Sebban E, Beyaert B, Cabrol D, Papiernik E
Clinique Universitaire Port-Royal-Baudelocque, Paris.
J Gynecol Obstet Biol Reprod (Paris). 1995;24(7):756-62.
To assess continuous monitoring of fetal blood oxygen staturation (SpO2) during labour using a fetal pulse oxymeter.
Preliminary results obtained with the Nellcor N-400 fetal pulse oxymeter at the Maternité Port-Royal-Baudelocque between November 1992 and November 1993 in cases of abnormal fetal heart rate are presented. We analyzed: the correlation between SpO2 during labour and cord vein pH as well as Apgar score, the correlation between changes in SpO2, expressed as a desaturation index, and cord vein pH as well as Apgar score. The negative predictive value of oxymetry was assessed.
We found a significant positive correlation between the last SpO2 measurement during labour and umbilical vein pH as well as 1 minute Apgar score. We observed a highly significant correlation between the index of desaturation and cord vein pH as well as 1 minute Apgar score. No neonatal pH below 7.20 was observed when SpO2 was > or = 40% during labour. The negative predictive value of oxymetry was 100% in this short series of patients.
If these results were confirmed in a larger series of patients, a normal SpO2 value during labour could be reassuring in case of abnormal fetal heart rate.
使用胎儿脉搏血氧仪评估分娩期间胎儿血氧饱和度（SpO2）的连续监测情况。
呈现了1992年11月至1993年11月期间在皇家波德洛克妇产医院，使用Nellcor N - 400胎儿脉搏血氧仪对胎儿心率异常病例所获得的初步结果。我们分析了：分娩期间SpO2与脐静脉pH值以及阿氏评分之间的相关性，以去饱和指数表示的SpO2变化与脐静脉pH值以及阿氏评分之间的相关性。评估了血氧测定法的阴性预测值。
我们发现分娩期间最后一次SpO2测量值与脐静脉pH值以及1分钟阿氏评分之间存在显著正相关。我们观察到去饱和指数与脐静脉pH值以及1分钟阿氏评分之间存在高度显著的相关性。当分娩期间SpO2≥40%时，未观察到新生儿pH值低于7.20的情况。在这一小系列患者中，血氧测定法的阴性预测值为100%。
如果这些结果在更大系列的患者中得到证实，那么在胎儿心率异常的情况下，分娩期间正常的SpO2值可能会让人安心。
