• Einstein (Sao Paulo) · Dec 2013

    Serum soluble-Fas is a predictor of red blood cell transfusion in critically ill patients.

    • Ilana Levy Korkes, Gustavo Schvartsman, Ilson Jorge Lizuka, Beata Marie Quinto, Maria Aparecida Dalboni, Maria Eugênia Canziani, Sergio Antonio Draibe, Virgilio Gonçalves Pereira, Bento Fortunato Cardoso Dos Santos, Julio Cesar Martins Monte, Marcelino de Souza Durão Junior, Marcelo Costa Batista, Oscar Fernando Pavão Dos Santos, Miguel Angelo de Góes Junior, and Miguel Cendoroglo Neto.
    • Einstein (Sao Paulo). 2013 Dec 1;11(4):472-8.

    ObjectiveTo investigate the relation between the need for red blood cell transfusion and serum levels of soluble-Fas, erythropoietin and inflammatory cytokines in critically ill patients with and without acute kidney injury.MethodsWe studied critically ill patients with acute kidney injury (n=30) and without acute kidney injury (n=13), end-stage renal disease patients on hemodialysis (n=25) and healthy subjects (n=21). Serum levels of soluble-Fas, erythropoietin, interleukin 6, interleukin 10, iron status, hemoglobin and hematocrit concentration were analyzed in all groups. The association between these variables in critically ill patients was investigated.ResultsCritically ill patients (acute kidney injury and non-acute kidney injury patients) had higher serum levels of erythropoietin than the other groups. Hemoglobin concentration was lower in the acute kidney injury patients than in other groups. Serum soluble-Fas levels were higher in acute kidney injury and end-stage renal disease patients. Critically ill patients requiring red blood cell transfusions had higher serum levels of soluble-Fas (5,906±2,047 and 1,920±1,060; p<0.001), interleukin 6 (518±537 and 255+502; p=0.02) and interleukin 10 (35.8±30.7 and 18.5±10.9; p=0.02), better iron status and higher mortality rates in the first 28 days in intensive care unit. Serum soluble-Fas levels were independently associated with the number of red blood cell units transfused (p=0.02). Serum soluble-Fas behaved as an independent predictor of the need for red blood cell transfusion in critically ill patients (p=0.01).ConclusionsSerum soluble-Fas level is an independent predictor of the need for red blood cell transfusion in critically ill patients with or without acute kidney injury. Further studies are warranted to reconfirm this finding.

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