Congenital hypofibrinogenemia in pregnancy: report of two cases and review of the literature.

Fibrinogen abnormalities have been implicated in many adverse pregnancy outcomes, mainly spontaneous abortion, placental abruption, and postpartum hemorrhage. Two new cases of congenital hypofibrinogenemia in pregnancy are reported detailing their obstetric course and management. The relevant obstetric and hematologic literature is reviewed, including previous case reports and studies concerning the mechanisms of pregnancy complications.