Compliance with prophylactic platelet transfusion trigger in haematological patients

Summary.  The aim of prophylactic platelet transfusions in haemato‐oncologic patients with thrombocytopenia is to prevent bleeding. Currently, a platelet transfusion trigger of 10 × 10 9  L − 1 is considered to be safe. Transfusion compliance with this trigger can save costs. To investigate the compliance with this trigger of 10 × 10 9  L − 1 , we have evaluated 1447 platelet transfusions given during a period of 1 year to haematological patients. In half of the transfusions, there had been compliance with the trigger of 10 × 10 9  L − 1 . About three‐quarters of all platelet transfusions were given at platelet counts ≤20 × 10 9  L − 1 . Transfusions at levels >20 × 10 9  L − 1 were usually performed because of bleeding, scheduled interventions or concurrent anticoagulant therapy. We conclude that compliance with the prophylactic platelet transfusion trigger of 10 × 10 9  L − 1 was about 50%; however, deviation from the trigger was partly explained by risk factors that justify a higher transfusion trigger.