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目的 通过测定新生儿脐血pH值来评价产时胎心电子监护在诊断胎儿窘迫的应用价值。方法 对 6 0例产时行胎心电子监护的新生儿测定脐动脉血 pH值。结果 在CST出现的不良图形中 ,不典型的VD及LD组与CST阴性组比较有显著性差异 (P <0 0 0 1)。典型VD组与阴性组比较有明显差异 (P <0 0 1)。而ED组与阴性组比较无差异 (P >0 0 5 )。结论 CST试验出现不良图形时 ,只有在出现不典型变异减速或晚期减速时对胎儿窘迫诊断有意义。而在出现典型变异减速或早期减速时 ,需结合其它指标综合判断 ,以免临床“过度”诊断胎儿窘迫。
Objective To evaluate the value of fetal heart rate monitoring in the diagnosis of fetal distress by measuring the neonatal umbilical cord blood pH value. Methods The umbilical arterial blood pH was measured in 60 neonates with labor-time fetal heart electronic monitoring. Results There were significant differences between the atypical VD and LD groups and the CST negative group (P <0.01) in the unfavorable patterns of CST. The typical VD group and the negative group were significantly different (P <0 01). There was no difference between ED group and negative group (P> 0.05). Conclusion When there is a bad pattern in CST test, it is meaningful to diagnose fetal distress only when there is atypical degeneration or late deceleration. In the typical variation of deceleration or early deceleration, the combination of other indicators need to be combined to avoid clinical “over” fetal distress.