USMLE Step 2 CK Lecture Notes 2019: Obstetrics/Gynecology (Kaplan Test Prep)

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RETAINED PLACENTA


Retained placenta causes 5% of excessive postpartum bleeding.


Risk Factors. Accessory placental lobe (most common) and abnormal
trophoblastic uterine invasion (e.g., cervix, vagina, perineum).


Clinical Findings. Missing placental cotyledons in the presence of a contracted
uterus.


Management. Manual removal or uterine curettage under ultrasound guidance.

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