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本文对764例孕妇进行产前胎心监护,出现异常胎心宫缩图(CTG)167例,占21.9%,包括 NST 无反应型16例(9.6%);基线率异常39例(23.4%);基线变异异常43例(25.7%);各类减速69例(41.3%)。同时应用多普勒超声进行脐动脉血流测定,以收缩期血流速度峰值 S 与舒张末期血流速度峰值 D 的比值(S/D)为测定参数,随机抽取住院分娩的37-41孕周的正常妊娠妇女作对比观察。结果:异常 CTG 中脐动脉血流 S/D 值≥3.0者38例,占22.8%,结合妊娠结局分析,低体重儿、羊水污染及新生儿 Apgar 评分≤7分的发生率显者高于对照组(P<0.05)。我们认为采用 CTG 与脐动脉血流 S/D 值联合监测,对提高诊断胎儿宫内窘迫的准确率,有一定的临床价值,而且具有无损伤、可重复的优点。
In our study, 764 prenatal fetal heartbeat monitoring was performed in 764 pregnant women. There were 167 cases (21.9%) with abnormal fetal heart uterine contraction (CTG), including 16 cases (9.6%) with non-responsive NST and 39 cases (23.4% ; Abnormal baseline changes in 43 cases (25.7%); various types of deceleration in 69 cases (41.3%). At the same time, umbilical artery blood flow was measured by Doppler ultrasound. The ratio of the peak S of systolic velocity to the peak D of diastolic velocity (S / D) was taken as the measurement parameter, and 37-41 gestational weeks Of normal pregnant women for comparative observation. Results: 38 cases (22.8%) had umbilical arterial blood flow S / D≥3.0 in abnormal CTG. The incidence of neonatal Apgar score ≤7 was significantly higher than that of control Group (P <0.05). We believe that the combination of CTG and umbilical artery blood flow S / D monitoring, to improve the accuracy of diagnosis of fetal distress, have some clinical value, but also with no damage, repeatable advantages.