625. Complications of placental abruption / Management / Circumvellate placenta: define, complications, dx, rx November 6th, 2008 by reuben in pregnancy Back Top Tags: card 624. Management of placenta previa / In what % of placental abruptions is bleeding concealed? / Diagnoses that should be made with caution if abruption is in the ddx / Ability of ultrasound to rule out abruption 626. Vasa previa: define, risk factors, complications, rx / 2 ways to test for fetal blood Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.