Abstract
This study dealt with the effect of citrate phosphate dextrose adenine (CPDA) whole blood stored at 4°C for 5 weeks and fresh frozen plasma at −30°C for 12 months on coagulation, fibrinolytic and kallikrein system activation. Stored whole blood showed a significant decrease in ATIII activity by the second week with a significant decrease in thrombin-antithrombin complex by the fourth week. α 2-antiplasmin and plasminogen decreased significantly by the first and second week, respectively, accompanied by a significant increase in D-dimer level by the fourth week. A significant decrease in Cl-inhibitor activity occurred by the first week associated with a significant increase in kallikrein activity by the third week. However, all measured parameters were minimally affected in fresh frozen plasma. Therefore, fresh frozen plasma supplemented with packed RBCs are preferred to whole blood stored over 3 weeks especially in patients with proteolytic enzyme system activation.
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