Hofstaetter C, Gudmundsson S, Dubiel M, Marsál K
Department of Obstetrics and Gynecology, University of Lund, University Hospital, Malmö, Sweden.
Eur J Obstet Gynecol Reprod Biol. 1996 Dec 27;70(2):135-40. doi: 10.1016/s0301-2115(95)02599-5.
Umbilical venous (UV) blood velocity pulsations have been considered as a late sign of fetal hypoxemia in high-risk pregnancies. Ductus venosus (DV) functions as a pressure filter as it conducts umbilical blood into the inferior vena cava of the fetus. The aim of this paper was to evaluate whether DV Doppler velocimetry might give earlier indication of fetal hypoxemia than does UV blood velocity.
Recording of DV blood velocity in complicated pregnancies referred for umbilical artery (UA) velocimetry as one aspect of fetal surveillance.
DV and UV blood velocities were recorded serially by Doppler ultrasound in 87 high-risk pregnancies and the results of the last examination before delivery were correlated to perinatal outcome.
Abnormal DV blood velocity waveforms recorded in 26 pregnancies were not correlated to perinatal outcome, except for low Apgar score at one minute of life. Abnormal UV blood velocity pulsations in the cord were recorded in 11 fetuses, of which only 6 had abnormal DV velocimetry. UV pulsations were related to adverse perinatal outcome and all these fetuses had abnormal UA velocimetry.
Abnormal DV blood velocity is more frequently recorded in high-risk pregnancies than UV pulsations, but appears to be a poor indicator of adverse perinatal outcome.
脐静脉（UV）血流速度波动被视为高危妊娠胎儿低氧血症的晚期征象。静脉导管（DV）在将脐血导入胎儿下腔静脉时起到压力过滤器的作用。本文旨在评估DV多普勒测速法是否比UV血流速度能更早地提示胎儿低氧血症。
将记录复杂妊娠中DV血流速度作为胎儿监护的一个方面，这些妊娠因脐动脉（UA）测速而被转诊。
通过多普勒超声连续记录87例高危妊娠的DV和UV血流速度，并将分娩前最后一次检查结果与围产期结局相关联。
26例妊娠中记录到的异常DV血流速度波形与围产期结局无关，仅与出生后1分钟时阿氏评分低有关。11例胎儿记录到脐带中异常UV血流速度波动，其中只有6例DV测速异常。UV波动与不良围产期结局相关，并且所有这些胎儿UA测速均异常。
高危妊娠中记录到异常DV血流速度比UV波动更常见，但似乎是不良围产期结局的一个不良指标。
