脐动脉血流速度波形预测高危妊娠围产儿预后的价值  

Fetal Umbilical Artery Velocity Waveforms to Predict the Outcome in High Rish Pregnancy

作　　者：刘慧姝[1] 符玉亭[1] 陈全娘[1] 

机构地区：[1]广州医学院第一附属医院妇产科

出　　处：《广州医学院学报》1996年第5期16-19,共4页Academic Journal of Guangzhou Medical College

摘　　要：本文应用彩色多普勒超声对40例高危妊娠妇女进行脐动脉(UmA)的血流速度波形检查以预测围产儿预后。以UmA收缩期最大血流速度(s)与舒张末期血流速度(D) 之比值(UMA s/D)为指标,以3为临界点,将40例病例分为A组15例(UMa S/D>3);B组25例 (UmA S/D<3) 围产儿预后不良指标为:1、新生儿体重<2500g;2、新生儿1分钟Apgar评分<7分;3、羊水过少或混浊;4、死胎。结果显示脐血流值异常组中妊娠结局不良者显著多于正常组(P<0.05),脐血流值异常对高危妊娠国产儿预后不良的预测值其敏感性为0.769,特异性为0.814,阳性预测值为0.667,阴性预测值为0.88。说明脐动脉血流值在对高危妊娠的监护及对高危妊娠围产儿的预后预测中有重要价值。Colour Doppler ultrasound was used to measure the umibilical artery flow velocity S/D ratio in 40 high rish pregnancies. S/D ratio represented the ratio of maximum systolic velocity (S) to minimum diastolic velocity (D) . S/D ratio > 3 was defined as abnormal. Forty cases were divided into two groups:(l) 15 cases with S/D> 3; (2) 25 cases with S/D<3. The criteria for ad-verse perinatal outcome were set as follows: (1) Apgar score<7; (2) birth weight < 2500g; (3) oligobydramnios or meconium staining; (4) intrauterine death. The result showed that the abnormal pregnancy outcomes of S/D > 3 were obviously higher than that of S/D<3 (P<0.05) , and that S/D ratio > 3 (P<0.05), and that S/D ratio > 3 had the predictive value with sensitivity 0.769, specificity 0.814, positive predictive value 0.667, negative predictive value 0.88. Our study suggested that the umbillical artery Doppler be a useful screening tool for identifying the abnormal outcomes in high risk pregnancies.

关 键 词：高危妊娠 彩色超声多普勒 脐动脉 

分 类 号：R445.1[医药卫生—影像医学与核医学]