Maternal hepatic venous hemodynamics and cardiac output in normal and fetal growth restricted pregnancies
2018
: 目的:评价正常妊娠(uncomplicated pregnancy,UP)和胎儿生长受限(fetal growth restriction,FGR)孕妇的肝静脉血流动力学和心输出量(cardiac output,CO)与胎儿生长发育之间的关系。方法:用彩色多普勒超声测量FGR组和UP组孕妇的肝静脉血流阻力指数(hepatic venous impedance,HVI)、静脉脉搏传递时间(venous pulse transit time,VPTT)及CO。记录各孕妇的新生儿体重及体重百分比。结果:UP组随孕周增加,HVI降低,VPTT增加,CO增多;FGR组较孕周相当UP组HVI值更高,VPTT值更短,CO更低,新生儿出生时体重更低,胎儿娩出时胎龄更小(P<0.05)。结论:中晚期正常孕妇随孕周增加,肝静脉血流动力学发生适应性改变;FGR孕妇的肝静脉血流动力学和CO适应不良与胎儿生长受限存在重要的联系。.
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