Flashcards in Placenta Accreta Deck (9)
Placenta accreta? Abnormality of what layer? Histology?
Abnormal adherence of the placenta to the uterine wall – due to an animality of the decidua basalis (placental villi are attached to the myometrium)
Abnormally implanted placenta penetrates into myometrium
Placenta percreta? Common complication?
Abnormally implanted placenta penetrates entirely through myometrium and into serosa
Invasion into bladder
Risk factors for placental adherence?
1. Anterior/Low lying placenta
2. Placenta previa
3. Prior C-section or uterine scar
4. Uterine curettage or Prior myomectomy
5. Fetal down syndrome
Differentiating complete versus incomplete placenta accreta
No bleeding versus antepartum bleeding
Initial management hope retained placenta? Finding of placenta accreta ? Do not try?
Manual extraction with effort to find cleavage plane between placenta uterus
No cleavage plane between placenta and uterus
D&C – can cause hemorrhage and exsanguination
Transmigration of the placenta?
Rapid growth of lower uterine segment (in a low lying placenta) during the third trimester
50% risk for placenta accreta if?
3+ prior C-sections with placenta previa