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应用胎儿头皮血（胎血）血气分析对４３例过期妊娠及４０例足月妊娠产时胎儿进行对照监测，同时采取母体桡动脉血（母动脉）．胎儿娩出后立即采取脐动脉血（脐动脉）及脐静脉血（脐静脉）进行血气分析．结果：过期组胎血ｐＨ及ＰＯ２明显低于，ＰＣＯ２明显高于对照组，过期组与对照组脐静脉的ｐＨ、ＰＣＯ２、ＰＯ２均值比较差异显著，过期组胎血ｐＨ与母血、脐动脉、脐静脉血ｐＨ呈直线正相关；过期组母／儿 ｐＨ＞０．２０的发生率明显高于对照组；多因素相关分析表明；过期组胎儿窘迫、新生儿窒息与胎血、脐静脉、脐动脉血ｐＨ均有相关性，表明应用胎儿头皮血血气分析对过期妊娠产时胎儿进行监测的必要性及其实用价值。
Application of fetal scalp blood (fetal blood) blood gas analysis of 43 cases of overdue pregnancy and 40 cases of full-term fetus during labor control were monitored, while taking the mother’s radial artery (aorta). Umbilical artery (umbilical artery) and umbilical vein (umbilical vein) were immediately taken for blood gas analysis after the fetus was delivered. Results: The changes of fetal blood pH and PO2 in obsolete group were significantly lower than those in control group. PCO2 and PO2 in obstructive group were significantly different from those in control group. The differences of fetal blood pH, maternal blood, umbilical artery, Umbilical venous blood pH was linearly correlated; overdose group mother / child pH> 0.20 incidence was significantly higher than the control group; multivariate analysis showed that; outdated group fetal distress, neonatal asphyxia and fetal blood, umbilical vein, umbilical Arterial blood pH are correlated, indicating that the application of fetal scalp blood gas analysis of the need for fetal monitoring during pregnancy and the value of their usefulness.