多阶段CST试验对脐带缠绕孕妇分娩方式的指导意义

The significance of the contraction stress test for encirclement of fetal umbilical cord to determine the method of delivery

目的 探讨多阶段CST试验对脐带缠绕病人分娩方式的指导意义。方法 对B型超声诊断有脐带缠绕的孕妇于潜伏期、加速阶段、最大倾斜阶段末、第二产程行CST试验,根据CST试验结果决定分娩方式。胎儿娩出后立即取脐带血。产后新生儿行NBNA测定。结果 CST试验阳性组pH<7.20者显著高于CST试验阴性组及CST试验可疑阳性组P<0.05。CST试验阳性组NBNA测定总评分与CST试验阴性组及CST试验可疑阳性组比较差异有显著性。结论 多阶段CST试验对脐带缠绕病人分娩方式有重要的指导意义,对降低围产儿死亡率有重要意义。

Objective To study the significance of the contraction stress test (CST) on the method of delivery for patients with encirclement of fetal umbilical cord. Methods 81 cases of pregnant women reported with encirclement of fetal umbilical cord were monitored with more CST during different stages of labor to decide the method of delivery. The blood from the umbilical cord was taken to test pH right after the delivery. The NBNA (neonatal behavioral neurological assessment) was done for every newborn to evaluate the prognosis. Results Cases of pH < 7.20 with CST positive was significantly more than that with CST negative, P < 0.05. The total scoring of cases with CST positive was significantly different from that of CST negative, P < 0.05. Conclusions Multiple CST monitorings in different stages of labor could be used as a guide of delivery for patient with encirclement of of labor could b cused as a guide of deliv ery for patient with encirclement of fetal umbilical cord.