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首页> 外文期刊>The journal of maternal-fetal & neonatal medicine >The clinical value of maternal and fetal Doppler parameters in low-risk postdates pregnancies - a prospective study
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The clinical value of maternal and fetal Doppler parameters in low-risk postdates pregnancies - a prospective study

机译：低风险后妊娠期孕妇和胎儿多普勒参数的临床价值 - 预期研究

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Objective: The objective of this study is to determine the clinical significance of maternal and fetal ultrasound Doppler flow indices in postdates pregnancies. Methods: This prospective study comprised 120 low-risk pregnant women beyond 40 weeks of gestation. All participants underwent Doppler assessment including of fetal middle cerebral artery (MCA), umbilical, and uterine arteries. Perinatal outcomes were recorded and evaluated for possible associations with Doppler flow values. Adverse perinatal outcomes were defined as umbilical cord arterial pH <7.1, Apgar score <7 at 5 min, neonatal admission to a neonatal intensive care unit, and emergency cesarean section due to abnormal intrapartum cardiotocogram. Results: Adverse perinatal outcome rate was 17.5% (n = 21). Doppler indices of umbilical artery, MCA, uterine artery and the cerebroplacental ratio (CPR) did not differ significantly between pregnant women with and without adverse perinatal outcomes. Neonatal birth weight was found to correlate negatively with umbilical artery Doppler indices, including the peak systolic to end diastolic ratio (p - .04), the resistance index (p = .02), and the pulsatility index (p = .01). Doppler values of the uterine artery, MCA and CPR did not correlate with neonatal birth weight. Conclusions: The contribution of maternal and fetal ultrasound Doppler to the prediction of adverse perinatal outcomes in low-risk postdates pregnancies is low. Hence, performing routine Doppler examination as part of postdates pregnancy assessments is unlikely to yield significant clinical benefit.
机译：目的：本研究的目的是确定母亲和胎儿超声多普勒流程指数在后缘妊娠中的临床意义。方法：该前瞻性研究包括超过40周的妊娠超过40周的低风险孕妇。所有参与者都接受了多普勒评估，包括胎儿中间脑动脉（MCA），脐带和子宫动脉。记录围产期结果，并评估与多普勒流量值的可能关联。不利的围产后结果被定义为脐部动脉pH <7.1，APGAR评分<7，在5分钟，新生儿入院给新生儿重症监护单位和急诊剖宫产，由于IntraCartum心皮相异常。结果：不利围产后率为17.5％（n = 21）。脐动脉，MCA，子宫动脉和脑膜形态比（CPR）的多普勒索引在孕妇之间没有显着差异，没有屈服的围困不利的结果。发现新生儿出生体重与脐动脉多普勒指数负相关，包括峰收缩到最终舒张率（P - .04），阻力指数（P = .02）和脉动性指数（P = .01）。子宫动脉，MCA和CPR的多普勒值与新生儿出生体重无关。结论：母亲和胎儿超声多普勒对低风险后妊娠期衰退的不良围产期结果的贡献很低。因此，作为妊娠评估妊娠评估的一部分进行常规多普勒检查，不太可能产生显着的临床益处。

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