Objectives: We evaluated thrombosis and mortality rates of hospitalized patients receiving prophylactic platelet transfusion prior to an invasive procedure.
Methods: Patient age and underlying medical condition(s), preprocedure and postprocedure platelet counts, type of procedure, number of platelet products transfused, and any complications were recorded on every prophylactic platelet given prior to an invasive procedure.
Results: A total of 376 prophylactic transfusion recipients were identified. Nineteen (5%) thrombotic events were identified and 60 (16%) deaths occurred within 30 days of the preprocedure platelet transfusion. Most deaths were due to infection, sepsis, or organ failure, and none were due to bleeding or thrombosis.
Conclusions: Preprocedure platelet transfusion is associated with an increased risk of thrombosis and 30-day mortality. Whether these findings are due to higher incidences of comorbidities and confounding or to cause and effect is not determinable from these data. This study highlights an association between prophylactic platelet transfusion and thrombosis and poor outcome, including death.
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