Placental Abruption. Liu Wei Department of Ob & Gy Ren Ji hospital. General Consideration. Definition The separation of the placenta from its site of implantation after 20 weeks of gestation or during the course of delivery. Frequency 0.51%-2.33% (our country)
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Department of Ob & Gy
Ren Ji hospital
The separation of the placenta from its site of implantation after 20 weeks of gestation or during the course of delivery.
0.51%-2.33% (our country)
1% (other countries)
hemorrhage into the decidua basalis → decidua splits → decidural hematoma → separation, compression, destruction of the placenta adjacent to it
revealed abruption, concealed abruption, mixed type
abruption≤ 1/3, apparent vaginal bleeding
abruption > 1/3, large retroplacental hematoma, vaginal bleeding companied by persistent abdominal pain, tenderness on the uterus, change of fetal heart rate. shock and renal failure.