Perigestational hemorrhage

Last revised by Joshua Yap on 14 Oct 2022

Perigestational hemorrhage refers to hemorrhage that occurs around the fetus during the gestational period. The spectrum of hemorrhage includes:

  • 2% of pregnancies <10 weeks

  • 20% of those have vaginal bleeding <10 weeks

Venous bleeding from the chorionic plate.

  • >90% pregnancy success rate if living embryo with small perigestational hemorrhage

  • large perigestational hemorrhage (>50% of gestational sac circumference): 25% loss rate even if living embryo

  • perigestational hemorrhage with embryonic bradycardia (≤90 beats per minute): 80% loss rate

  • it is a weak predictor of failing pregnancy

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