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  • Title: Effect of single-unit transfusion in patients treated for haematological disease including acute leukemia: A multicenter randomized controlled clinical trial.
    Author: Chantepie SP, Mear JB, Briant AR, Vilque JP, Gac AC, Cheze S, Girault S, Turlure P, Marolleau JP, Lebon D, Charbonnier A, Jardin F, Lenain P, Peyro-Saint-Paul L, Abonnet V, Dutheil JJ, Chene Y, Bazin A, Reman O, Parienti JJ.
    Journal: Leuk Res; 2023 Jun; 129():107058. PubMed ID: 37080000.
    Abstract:
    BACKGROUND: Retrospective studies in hematological unit have suggested that single red blood cell (1-RBC) unit transfusion policy may reduce the number of RBC used without negative clinical impact. METHOD: Acute leukemia patients requiring intensive chemotherapy or patients receiving autologous or allogeneic transplantation were randomly assigned to receive either single RBC (1-RBC arm) or double RBC (2-RBC arm) per transfusion with a hemoglobin trigger of 8 g/dL. The primary composite endpoint was the percentage of patients experiencing serious complications, such as a non-hematological adverse event grade ≥ 3 or intensive care admission or death. FINDINGS: A total of 981 and 592 RBC transfusions were required in the 1-RBC arm (n = 125) and the 2-RBC arm (n = 120), respectively. The mean pre-transfusion hemoglobin levels were 7.49 ± 0.83 g/dL in the 1-RBC arm and 7.46 ± 0.67 g/dL in the 2-RBC arm (p = 0.275). The predefined non-inferiority criteria was achieved with 28/125 patients reaching the primary endpoint in the 1-RBC arm (22.4 %) and 28/120 patients in the 2-RBC arm (23.3 %) (Risk difference 0.009; 95 %, Confidence interval [-0.0791 to 0.0978], p = 0.021). The median (IQR) of RBC units transfused per patient was 7 (4-12) in the 1-RBC arm and 8 (4-12) in 2-RBC arm. Hemoglobin levels at discharge were also comparable in both arms. INTERPRETATION: The results of this trial indicate that a single RBC transfusion policy is not inferior to a double RBC transfusion policy for patients receiving a bone marrow transplant or intensive chemotherapy in a hematological intensive care unit. However, the single RBC transfusion policy did not reduce the number of RBC units transfused per stay. FUNDING: This trial was funded by a grant from the French Ministry of Health.
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