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Related Experiment Videos

Transfusion of leukoreduced red blood cells may decrease postoperative infections: two meta-analyses of randomized

Dean Fergusson1, Madhu Priya Khanna, Alan Tinmouth

  • 1Clinical Epidemiology Program, Ottawa Health Research Institute, Ottawa, Ontario, Canada. dafergusson@ohri.ca

Canadian Journal of Anaesthesia = Journal Canadien D'Anesthesie
|May 7, 2004
PubMed
Summary

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Leukoreduction of red blood cells may decrease postoperative infections in transfused patients. Analyzing only transfused patients, not all randomized, revealed a significant benefit, suggesting this approach enhances clinical outcomes.

Area of Science:

  • Transfusion Medicine
  • Clinical Trials
  • Evidence-Based Medicine

Background:

  • Red blood cell transfusions are common in clinical practice.
  • Concerns exist regarding potential adverse effects of non-leukoreduced blood products.
  • Leukoreduction aims to remove white blood cells from blood products to mitigate these risks.

Purpose of the Study:

  • To evaluate the efficacy and effectiveness of red blood cell leukoreduction.
  • To assess the impact of leukoreduction on postoperative infection, mortality, and cancer recurrence.
  • To compare outcomes between leukoreduced and non-leukoreduced blood transfusions.

Main Methods:

  • Two meta-analyses of randomized controlled trials (RCTs) were conducted.
  • A systematic literature search identified relevant RCTs.

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  • Pooled relative risk ratios (RR) were calculated using a random effects model, with separate analyses for all randomized patients and only transfused patients.

    • Main Results:

    • Ten RCTs met inclusion criteria; eight provided separate data.
    • Leukoreduction showed a statistically significant reduction in postoperative infection risk when analyzing only transfused patients (RR = 0.60).
    • No statistically significant difference in cancer recurrence was observed. Mortality reduction approached significance in the transfused-only group (RR = 0.61).

    Conclusions:

    • Leukoreduced red blood cells may decrease postoperative infections in transfused patients.
    • Analyzing only transfused patients, rather than all randomized patients, better demonstrates the clinical benefit of leukoreduction.
    • Increased patient enrollment in RCTs could further elucidate the impact on mortality.