Plasma exchange in a case of severe factor X deficiency in pregnancy: critical review of the literature.

Hereditary factor X deficiency represents an uncommon challenge in pregnancy. A 30-year-old primigravida affected by severe factor X deficiency was followed from 6 weeks of gestation until delivery. Factor X was provided prior to delivery for the first time in pregnancy via plasma exchange. The pregnancy and postpartum period were not complicated by bleeding episodes; therefore this approach was accompanied by lower cost and fewer side effects when compared with fresh-frozen plasma and prothrombin complex concentrates infusion, two therapeutic options already used in pregnancy.