amniotic fluid embolism (EFO_1001263) can be described as follows. Blocking of maternal circulation by AMNIOTIC FLUID that is forced into uterine VEINS by strong UTERINE CONTRACTION near the end of pregnancy. It is characterized by the sudden onset of severe respiratory distress and HYPOTENSION that can lead to maternal DEATH. Also known as: Embolism, Amniotic Fluid.