Summary
Various parameters of the coagulation system have been monitored in patients with
Christmas disease following the infusion of clotting factor concentrates. Significant
reduction of clotting factor VIII and serum antithrombin III were observed in each
of the five studies, whilst the plasma fibrinogen level fell in four subjects. The
induced abnormalities were shortlived and there were no clinical sequelae. Further
studies are required to assess the effects of similar concentrates in patients with
liver disease.