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Emergency Medicine


Answer 6
  1.  Previous placental abruption. The risk of placental abruption is increased 15- to 20-fold if an earlier pregnancy had been complicated by placental abruption.6 Other risk factors include chronic hypertension, cocaine use, preeclampsia, age over 35 years, trauma, thrombophilia, cigarette smoking, preterm premature rupture of membranes, chorioamnionitis, and multiparity.4,5

    REFERENCES
    4. Faiz AS, Ananth CV. Etiology and risk factors for placenta previa: an overview and meta-analysis of observational studies. J Matern Fetal Neonatal Med 2003;13:175–90.

    5. Hladky K, Yankowitz J, Hansen WF. Placental abruption. Obstet Gynecol Surv 2002;57:299–305.

    6. Oyelese Y, Ananth CV. Placental abruption. Obstet Gynecol 2006;108:1005–16.

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