Obstet Gynecol:FGR中S/D正常和升高间的妊娠结局比较

2015-03-11 Mechront MedSci原创

胎儿生长受限(fetal growth restriction,FGR)亦称胎盘功能不良综合征或称胎儿营养不良综合征,系指胎儿体重低于其孕龄平均体重第10百分位数或低于其平均体重的2个标准差。胎儿脐动脉收缩压与<span lang="EN-US" style="mso-bidi-font-family:Arial;color:windowtext;background:white; text-


胎儿生长受限(fetal growth restriction,FGR)亦称胎盘功能不良综合征或称胎儿营养不良综合征,系指胎儿体重低于其孕龄平均体重第10百分位数或低于其平均体重的2个标准差。胎儿脐动脉收缩压与舒张压的比值(S/D),与胎儿供血相关,当胎盘功能不良或脐带异常时此比值会出现异常,在正常妊娠情况下,随孕周增加胎儿需要增加S下降,D升高,使比值下降,近足月妊娠时S/D小于3,大于3属于异常。

近期Lindsay Maggio等人进行了一项回顾性队列分析研究以比较诊断为胎儿生长受限(FGR)的孕妇中脐血S/D值正常组和升高组间的围生期结局。

研究共评估了2008-01至2012-07月间11,785名孕妇,其中789(7%)诊断为胎儿生长受限,有512名孕妇符合研究者设定的纳入标准,按胎儿脐血S/D值将其分为两组:正常组有394名(77%)孕妇,升高组有118名(23%)孕妇。记录孕产妇人口统计学资料和相关围生期结局情况。

该研究将升高组在37周分娩的妊娠结局与正常组39周分娩的妊娠结局相比较得出:升高组有101名(25.75)新生儿进入ICU治疗,正常组该数据为51名(43.2%),两组在统计学上无差异 ,OR 2.5, 95% CI 1.5–4.0;调整后 OR=1.37, 95% CI 0.69–2.71。升高组新生儿发病人数为60(15.2%),正常组该数据为24(20.3%),OR 1.42, 95% CI 0.84–2.40;调整后 OR 0.91, 95% CI 0.45–1.84。

研究结果显示,诊断为胎儿生长受限(FGR)的单胎妊娠孕妇,如果其胎儿脐血S/D值正常,在39周分娩,或S/D值升高,在37周分娩,两者新生儿发病率没有差异。对于诊断为胎儿生长受限(FGR)且脐血S/D值增高的单胎妊娠孕妇,在孕37周时选择性剖宫产,仍会有好的妊娠结局。

原始出处:

Lindsay Maggio,et al. Perinatal Outcomes With Normal Compared With Elevated Umbilical Artery Systolic-to-Diastolic Ratios in Fetal Growth Restriction. Obstet Gynecol 2015;0:1–7

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