【摘要】 目的 了解多普勒脐血流四个参数血流速度峰谷比(S/D)、脉动指数(PI)、阻力指数(RI)、胎心快速血流比(FBVR)在妊娠晚期羊水过少孕妇中的变化及临床意义。方法 对73例羊水过少孕妇和103例正常对照孕妇的脐血流S/D、PI、RI、FBVR进行产前检测,并追踪分娩结局。结果 羊水过少组与对照组的S/D、PI、RI各值差异无显著性(P>0.05),而羊水过少组中FBVR值较对照组低,差异有非常显著性(P<0.01),两组分娩结局中羊水性状≥Ⅱ度污染,新生儿Apgar评分≤7分的发生率差异无显著性(P>0.05)。结论 FBVR值可作为妊娠晚期监测羊水量、了解胎儿宫内安危状况的敏感指标。
【关键词】 羊水过少;脐动脉血流;临床意义
Clinical significance of detecting fetus umbilical arterial blood in gravida with oligohydramnios
LI Ji-hong,MIN Xiang,JIANG Xing,et al.
Department of Obsterics and Gynecology,The Women and Children Health Hospital of Zhuhai,Zhuhai 519010,China
【Abstract】 Objective To comprehend the change and its clinical significance of four Doppler umbilical arterial blood parametes such as blood flow-rate,S/D,PI,RI.FBVR in late trimester of pregnancy with oligohydramnios.Methods S/D,PI,RI,FBVR in these 73 gravidas with oligohydramnios and 103 normal gravidas were detected and followed up.Results The difference were significant in S/D,PI,RI between gravida with oligohydramnios and normal gravida (P>0.05);the FBVR was lower in gravida with oligohydramnios than in normal gravidas significantly(P<0.01);birth outcomes were significantly different in the rate of amniotic fluid ≥Ⅱ° Contamination and neonate Apgers score (P>0.05).Conclusion FBVR is a sensitive marker in detecting amniotic fluid vollum and comprehend fetus status in the late trimester of pregnancy.
【Key words】 oligohydramnios;umbilical arterial blood;clinical significance
目前,除应用B超诊断羊水过少并结合胎儿监测综合分析、预测胎儿宫内安危外,脐血检查也为较准确地预测胎儿宫内状况提供了新的技术[1]。本文就妊娠37周后孕妇常规行B超检查,筛选出73例羊水过少孕妇与103例羊水量正常孕妇,就其血流速度峰谷比(S/D)、血流脉动指数(PI)、血流阻力指数(RI)、胎心快速血流比(FBVR)四项指标与羊水量之间的关系进行分析[2],以期通过脐血流值的变化,观察和预测羊水量的多少,达到较准确地评估胎儿宫内状况,适时终止妊娠、降低围产儿死亡率的目的。
1 资料与方法
1.1 诊断标准[3] 羊水过少诊断标准采用Crowely羊少池最大垂直深度AFD≤3cm和产时/术中直接测量羊水量≤300ml。
1.2 一般资料 2004年6月~2005年6月间我院共住院分娩2538例,经B超诊断为羊水过少73例。同时随机抽取B超检查羊水量正常孕妇103例作对照分析。两组孕妇的一般情况,对照组孕妇平均
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