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目的 预测胎儿宫内缺氧。方法 应用彩色多谱勒超声仪对 15 0例孕妇的胎儿进行血流测定。结果 胎儿大脑中动脉 (MCA)血流 S/ D<4、 PI<1.4、 RI<0 .6 ;脐动脉 (UMA)血流 S/ D>3、 PI>1.7、 RI>0 .8、 PI、 RIMCA/PI、RIUMA<1时 ,提示胎儿宫内缺氧。高危妊娠组胎儿缺氧发生率与正常组比较 ,有非常显著性差异 (P<0 .0 0 1)。两组围产儿不良结局 ,如低体重儿、胎儿窘迫、新生儿窒息、围产儿死亡率均有显著差异。结论 产前监测胎儿大脑中动脉、脐动脉血流指标 ,可以了解胎儿颅脑血循环及胎儿胎盘循环状态 ,预测胎儿宫内缺氧。
Objective To predict intrauterine hypoxia. Methods Fetal blood flow was measured by color Doppler sonography in 150 pregnant women. Results The blood flow of fetal middle cerebral artery (MCA) had S / D <4, PI <1.4, RI <0.6; UMA blood flow S / D> 3, PI> 1.7, RI> , RIMCA / PI, RIUMA <1, prompted intrauterine hypoxia. The incidence of fetal hypoxia in high-risk pregnancy group was significantly higher than that in normal group (P <0.01). Two groups of poor outcomes of perinatal children, such as low birth weight children, fetal distress, neonatal asphyxia, perinatal mortality were significantly different. Conclusion Prenatal monitoring of fetal cerebral artery, umbilical artery blood flow indicators, can understand fetal brain blood circulation and fetal placental circulation status, predict fetal hypoxia.