妊高症胎儿下腔静脉前负荷指数的变化与意义  

Changes of the preload index of fetal inferior vena cava in pregnancy-induced hypertension and its significance

作　　者：雷娜 牛子长 段学蕴[2] 

机构地区：[1]解放军323医院,陕西西安710054 [2]西安交通大学第二医院

出　　处：《西北国防医学杂志》2012年第2期128-130,共3页Medical Journal of National Defending Forces in Northwest China

摘　　要：目的:研究妊高症(PIH)胎儿下腔静脉前负荷指数(preload index of inferior vena cava,PLI-IVC)的变化与意义。方法:80例孕妇(孕龄28周～42周)行常规超声检查后,对胎儿下腔静脉行多普勒超声检查,测量心室收缩期峰值(S)、心室舒张期峰值(D)和心房收缩期峰值(A),计算PLI-IVC即|A|/(S+D)。实验分为正常对照组和PIH组各40例,皆按孕周再分2组(28周～36周组与37周～42周组)。结果:胎儿下腔静脉多普勒血流频谱图为三相型:大"s"波、小"d"波和反向"a"波。对照组PLI-IVC在妊娠晚期较中期明显降低(P<0.05);PIH组PLI-IVC显著高于相应的对照组(P<0.05),且妊娠晚期较中期显著升高(P<0.05)。结论:多普勒超声检测的PIH胎儿PLI-IVC显著增高,有助于胎儿心功能评价及围产期并发症的预测。Objective：To study the changes and significance of the preload index of inferior vena cava（PLI-IVC） of fetuses in pregnancy-induced hypertension（PIH）.Methods： Eighty pregnant women with gestational age of 28-42 weeks were examined by common ultrasonography,and the IVC were investigated by duplex Doppler ultrasonography.The PLI-IVC was calculated as ｜A｜/（S＋D）.These women were randomly divided into control group（n=40） and PIH group（n=40）,and each group was further divided into two subgroups： medial gestational age subgroup（28-36 weeks） and late gestational age subgroup（37-42 weeks）.Results： The Doppler flow spectrum of fetal IVC compromised three phases,i.e,big ＂s＂,small ＂d＂ and reverse ＂a＂.In the control group,the PLI-IVC in late gestational age subgroup was significantly lower than that in medial gestational age subgroup（P0.05）.The PLI-IVC in PIH group was significantly higher than that in control group（P0.05）,especially in the late gestational age subgroup（P0.05）.Conclusion： It is useful to investigate the fetal PLI-IVC by duplex Doppler ultrasonography for assessment of fetal heart function and prediction of complications during perinatal period in PIH.

关 键 词：超声波诊断 妊高症 胎儿 下腔静脉 

分 类 号：R445.1[医药卫生—影像医学与核医学]