Quality Improvement Assessment of Massive Transfusion Protocol (MTP) Utilization and Blood Component Return to Blood Bank in a Level 1 Trauma Center

Abstract Introduction/Objective The goal of MTP in management of patients with hemorrhage is to restore coagulation factors, oxygen carrying capacity, and platelets by transfusing equal amount of plasma, RBC, and platelets. Upon activation of MTP, blood components are released in rounds until deactivation. This quality improvement study was initiated to assess blood products transfused versus returned during MTP activation at our Level1 Trauma Medical Center. Methods/Case Report Upon MTP activation, the Blood Bank (BB) prepares first round of cooler with components at 5:5:1 ratio of plasma, RBC, apheresis platelets. We reviewed retrospective MTP data of eleven-month, from 10/2022- 08/2023. We analyzed patterns of blood component usage by service line, number of MTP rounds issued, and number of units transfused versus returned. Results (if a Case Study enter NA) MTP data was reviewed for 195 patients. MTP activation by service line included emergency department 58.5%, medical ICU (MICU) 14.4%, and surgical ICU (SICU) 11.8%. In many MTP activations, only one round of components was released. Overall, an average of 1.5 rounds were issued. Data of units transfused and returned by component type showed more RBC (43.1%) units were transfused than plasma (39.4%) suggesting MTP transfusion did not follow 1:1:1 ratio. Out of all issued blood units 58% were returned. The high fraction of returned blood components suggests MTP activation may not always truly indicate massive hemorrhage. This finding, and the notable frequency of MTP activation for MICU and SICU patients suggests that individual component order on an emergency-release basis may have been the appropriate option. Conclusion In general, the data suggests implementation of a quality improvement initiative focused on increasing awareness of criteria for MTP activation, and training of staff surrounding MTP is essential. We recently implemented an electronic emergency transfusion order set that allows providers to order individual components for non-massively bleeding patients.