脐动脉血流S/D比值在胎儿监护中的应用分析

To assess the value of intrauterine fetal hypoxia by S/D of umbilical arteries

目的分析脐动脉血流S/D比值在胎儿监护中的临床应用价值。方法应用彩色多普勒测定832名待产单胎孕妇妊娠晚期脐动脉血流S/D比值。结合NST对胎儿宫内情况进行比较分析。结果正常妊娠妇女S/D比值随孕周的增加而逐渐下降。S/D比值与NST结合,可提高胎儿宫内缺氧的阳性预测值。S/D比值异常组的胎儿宫内缺氧,脐带异常,胎儿生长受限的发生率较正常组明显增高,两者比较差异有显著性(P<0.05)。结论脐动脉血流S/D比值的测定可及早地警示和发现胎儿宫内异常情况,指导临床提早采取干预和处理措施,降低围生儿死亡率。是一种值得推广的操作简单,安全,易行,且可重复的胎儿监护方法。

[Objective] To assess the clinical significance of the ratio of peak-systolic and diastolic （S/D）. [Method] Doppler umbilical artery flow velocimetry was used in 832 women of term singleton pregnancy at the last trimester, Non-stress Test（NST） alse was monitored and assessed the completion of intrauterine fetal hypoxia. [Result] S/D of the normal pregnancy decreased with the gestational age advancing. The predictive values of S/D combined with NST to intrauterine fetal hypoxia and normal were significant differente. [Conclusion] Monitoring the riato S/D can effectively predict and find out the intranterine fetal hypoxia, h is superiority of simple and safety method for fetal monitoring.