Abstract
Background - Platelet transfusion plays a critical role in the supportive treatment of acute leukaemia patients who receive chemotherapy and haematopoietic stem cell transplantation (HSCT). There are few studies assessing appropriateness of platelet transfusion in this population. An audit was conducted to determine how appropriately platelets are transfused in acute leukaemia patients at a tertiary care health institution.
Materials and methods - A six-year retrospective audit was conducted in acute lymphoblastic (ALL) and acute myeloid leukaemia (AML) patients in an academic centre. Episodes were assessed as either appropriate or inappropriate based on guidelines from the British Society for Haematology (BSH). Pre-transfusion platelet count, transfusion indication, World Health Organization (WHO) bleeding score, and antibiotic use were all documented.
Results - Overall, 745 platelet transfusion episodes in 154 patients were audited. The proportion of episodes appropriately indicated according to BSH guidelines was 75.3%. Paediatrics and Internal Medicine had the lowest and highest proportion of appropriateness by department at 63.9% and 86.8%, respectively. The best alignment to guidelines was found on the wards (82.3%). Inpatient cases were significantly better indicated (p=0.002), whereas therapeutic and HSCT-related transfusions were not. The majority of inappropriate transfusions had a pre-transfusion count >20×109/L without a valid justification (45.1%), whereas appropriate episodes were mainly accounted for by a pre-transfusion count <10×109/L (69%).
Discussion - The 25% rate of inappropriate platelet transfusion in acute leukaemia patients underscores the learning needs of physicians, particularly those in training, regarding adequate use of platelets in haematologic malignancies to optimise its utilisation and patient outcome.
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