2016 Volume 62 Issue 4 Pages 545-551
Japanese guidelines for usage of blood products for transfusion describes prothrombin time (PT), activated partial thromboplastin time (APTT), and activities of Factors (F) II, V, and VIII in FFP. However, no studies in Japan have reported the activities of other coagulation factors. We investigated the activities of 15 coagulation-related factors in apheresis-derived and whole blood-derived FFP (FFP480 and FFP240, respectively) after 1, 3, 6, 9, 12, and 13 months of storage.
Only FVIII showed >10% decrease in activity after storage in both FFP480 and FFP240. Activities of all other coagulation-related factors showed high stability during storage. All samples met the Japanese standard in "Minimum Requirements for Biological Products" (PT ≤20 sec). All parameters in thrombin generation tests showed ≤10% change after storage. Although O-group samples showed lower FVIII and VWF: RCo levels than non O-groups, they had thrombin generation activity comparable to non-O-groups.