Wei Zhang1, Kun Yu1, Ni Chen1, Miao Chen1. 1. Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China.
Abstract
OBJECTIVE: Whether the age of red blood cells (RBCs) affects mortality after transfusion in critically ill patients is controversial. METHODS: We searched MEDLINE, EMBASE, PubMed, Web of Science, and the Cochrane Library Central Register of Controlled Trials databases from inception to January 10, 2018 to identify systematic reviews or meta-analyses and published randomized controlled trials of the effects of fresh versus older blood transfusion on mortality of adults in the intensive care unit (ICU). There were no date restrictions, but the language was restricted to English. The primary outcome was mortality. Risk ratios (RR) and 95% confidence intervals (CI) were calculated. RESULTS: We included six trials that enrolled 8,467 critically ill patients and compared fresh RBC transfusion with current standard practice. There were no significant differences in 90-day mortality (RR 1.04, 95% CI 0.97, 1.12), 28/30-day mortality (RR 1.04, 95% CI 0.96, 1.13), in-hospital mortality (RR 1.06, 95% CI 0.94, 1.19), and in-ICU mortality (RR 1.11, 95% CI 0.97, 1.27) with fresh RBC transfusion compared with older blood transfusion. CONCLUSIONS: The study concluded that age of red cells for transfusion did not affect the outcomes in critically ill patients.
OBJECTIVE: Whether the age of red blood cells (RBCs) affects mortality after transfusion in critically ill patients is controversial. METHODS: We searched MEDLINE, EMBASE, PubMed, Web of Science, and the Cochrane Library Central Register of Controlled Trials databases from inception to January 10, 2018 to identify systematic reviews or meta-analyses and published randomized controlled trials of the effects of fresh versus older blood transfusion on mortality of adults in the intensive care unit (ICU). There were no date restrictions, but the language was restricted to English. The primary outcome was mortality. Risk ratios (RR) and 95% confidence intervals (CI) were calculated. RESULTS: We included six trials that enrolled 8,467 critically ill patients and compared fresh RBC transfusion with current standard practice. There were no significant differences in 90-day mortality (RR 1.04, 95% CI 0.97, 1.12), 28/30-day mortality (RR 1.04, 95% CI 0.96, 1.13), in-hospital mortality (RR 1.06, 95% CI 0.94, 1.19), and in-ICU mortality (RR 1.11, 95% CI 0.97, 1.27) with fresh RBC transfusion compared with older blood transfusion. CONCLUSIONS: The study concluded that age of red cells for transfusion did not affect the outcomes in critically ill patients.
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