Coagulation factor activity in units of leukoreduced and nonleukoreduced canine fresh-frozen plasma
2019
Foote, Michelle L. | Brooks, Marjory B. | Archer, Todd M. | Willis, Robert W. | Mackin, Andrew J. | Thomason, John M.
OBJECTIVE To evaluate coagulation factors in units of leukoreduced (LR) and nonleukoreduced (non-LR) canine fresh-frozen plasma (cFFP). ANIMALS 8 healthy research dogs. PROCEDURES In a crossover study, dogs were randomly assigned to 1 of 2 groups from which blood was collected and either did or did not undergo leukoreduction. After a recovery period of ≥ 28 days, the dogs were switched between protocols. After each collection, blood samples were centrifuged, and cFFP was stored frozen for later comparative analysis of coagulation factors, antithrombin, and protein C activities (reported as comparative percentages of the corresponding activities determined in a canine pooled plasma standard); prothrombin and activated partial thromboplastin times; and fibrinogen concentration. RESULTS There were no significant differences detected between results for LR cFFP, compared with those for non-LR cFFP. CONCLUSIONS AND CLINICAL RELEVANCE Although there was variation among residual activities of coagulation factors in LR and non-LR cFFP, the variations and differences were considered unlikely to impact the efficacy of LR cFFP transfused for coagulation factor replacement in dogs. However, owing to the small sample size and high variability of results in the present study, additional research with a larger sample size is required for definitive conclusions on the effects of leukoreduction on coagulation factors in cFFP and to develop treatment guidelines for LR cFFP use in dogs with congenital and acquired coagulopathies.
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