Conclusions The appearance of AEDV shows the extreme disfunction of mothernal placental-fetal circulation and may be related to poor outcome.

• 结论胎儿脐血流检测中，出现AEDV改变，是母体-胎盘、胎儿-胎盘循环障碍的表现，提示胎儿预后不良，临床上应予以高度重视。