| Summary: | Platelet concentrate (PC) is a blood component that is used to prevent or manage bleeding associated with thrombocytopenia or impaired platelet function. The aim of our study was to assess the compliance of ordering physicians with the most recent PC transfusion guidelines in our academic medical center. All PC transfusions performed between January 2019 and December 2022 were analyzed. The appropriateness of PC transfusions was assessed based on the most recent PC transfusion guidelines. During 2019–2022, there were 362 (0.2%) PC recipients out of 161,762 hospitalized patients. There were 971 PCs transfused during the analyzed period. Inappropriate transfusions accounted for 53.3% of cases, and most of them were given prophylactically (80.2%). Compliance with platelet transfusion guidelines varied among departments. The overall percentage of inappropriately transfused PC ranged from 50.7% to 60.8% in successive years. Educational activities should target clinicians performing procedures associated with high rates of inappropriate PC transfusions. Implementing clinical decision support systems can help reduce unnecessary PC transfusions and associated costs. The majority of inappropriate PC transfusions in our medical center were given as prophylaxis against bleeding. Prescribers should be educated about evidence-based transfusion triggers for the prophylactic use of PC in various clinical scenarios.
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