Department of Obstetrics and Gynecology, Patra University School of Medicine, Patra, Greece.
J Ultrasound Med. 2011 Apr;30(4):529-45. doi: 10.7863/jum.2011.30.4.529.
The management of growth-restricted fetuses requires accurate diagnosis to optimize the timing of delivery. Doppler velocimetry is the only noninvasive method for assessing the fetoplacental hemodynamic status. This review will give a critical overview of the current knowledge on fetal venous blood flow in pregnancies complicated by in-trauterine growth-restricted fetuses. Adaptation of the circulation in intrauterine growth-restricted fetuses is described. Normal and abnormal venous Doppler waveforms are presented. Correlations of abnormal waveforms with the presence of acidemia and perinatal outcomes are emphasized. Limitations of venous Doppler velocimetry for optimizing the time for delivery and the perinatal outcome are also presented.
胎儿生长受限的管理需要准确的诊断，以优化分娩时机。多普勒速度描记术是评估胎胎盘血流动力学状态的唯一无创方法。这篇综述将批判性地概述胎儿静脉血流在胎儿宫内生长受限的妊娠中的当前知识。描述了胎儿宫内生长受限时循环的适应性。介绍了正常和异常的静脉多普勒波形。强调了异常波形与酸中毒的存在和围产儿结局的相关性。还介绍了静脉多普勒速度描记术对优化分娩时间和围产儿结局的局限性。
