Time course of the fibrinogen level and transfusion with fresh frozen plasma in a patient receiving TAA surgery. The plasma fibrinogen level (mg/dL) and the platelet count are shown in a case of 71-year-old woman with dissecting aneurysm at aortic arch. The time points of administration of fresh frozen plasma (FFP) after cardiopulmonary bypass (CPB) are also indicated. The duration of CPB is shown as a gray box. FFP-5, 5 units of FFP.