• Crit Care · Oct 2022

    Multicenter Study

    Association between in-ICU red blood cells transfusion and 1-year mortality in ICU survivors.

    • Alice Blet, Joel B McNeil, Julie Josse, Bernard Cholley, Raphaël Cinotti, Gad Cotter, Agnès Dauvergne, Beth Davison, Kévin Duarte, Jacques Duranteau, Marie-Céline Fournier, Etienne Gayat, Samir Jaber, Sigismond Lasocki, Thomas Merkling, Katell Peoc'h, Imke Mayer, Malha Sadoune, Pierre-François Laterre, Romain Sonneville, Lorraine Ware, Alexandre Mebazaa, and Antoine Kimmoun.
    • Université Paris Cité, Department of Anesthesiology, Critical Care and Burn Unit, INSERM, UMR-S 942, MASCOT, FCRIN INI-CRCT, Hôpitaux Universitaires Saint Louis - Lariboisière, Assistance Publique - Hôpitaux de Paris, Paris, France.
    • Crit Care. 2022 Oct 7; 26 (1): 307307.

    BackgroundImpact of in-ICU transfusion on long-term outcomes remains unknown. The purpose of this study was to assess in critical-care survivors the association between in-ICU red blood cells transfusion and 1-year mortality.MethodsFROG-ICU, a multicenter European study enrolling all-comers critical care patients was analyzed (n = 1551). Association between red blood cells transfusion administered in intensive care unit and 1-year mortality in critical care survivors was analyzed using an augmented inverse probability of treatment weighting-augmented inverse probability of censoring weighting method to control confounders.ResultsAmong the 1551 ICU-survivors, 42% received at least one unit of red blood cells while in intensive care unit. Patients in the transfusion group had greater severity scores than those in the no-transfusion group. According to unweighted analysis, 1-year post-critical care mortality was greater in the transfusion group compared to the no-transfusion group (hazard ratio (HR) 1.78, 95% CI 1.45-2.16). Weighted analyses including 40 confounders, showed that transfusion remained associated with a higher risk of long-term mortality (HR 1.21, 95% CI 1.06-1.46).ConclusionsOur results suggest a high incidence of in-ICU RBC transfusion and that in-ICU transfusion is associated with a higher 1-year mortality among in-ICU survivors. Trial registration ( NCT01367093 ; Registered 6 June 2011).© 2022. The Author(s).

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