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Microfluidics in Assessing Platelet Function
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Published on: November 8, 2024

Platelet utilization and the transfusion trigger: a prospective analysis.

Edward Greeno1, Jeffrey McCullough, Daniel Weisdorf

  • 1Department of Medicine and Laboratory Medicine, University of Minnesota Medical School, Minneapolis, MN 55455, USA.

Transfusion
|February 17, 2007
PubMed
Summary

Implementing a lower prophylactic platelet (PLT) transfusion threshold of 10 x 10(9)/L changed transfusion practices but resulted in only a minor reduction in overall PLT usage. Further adjustments are needed to significantly decrease PLT transfusion costs and risks.

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Area of Science:

  • Hematology
  • Transfusion Medicine
  • Clinical Practice Guidelines

Background:

  • Platelet (PLT) transfusion practices have shifted towards more conservative approaches, with a recommended threshold of 10 x 10(9)/L.
  • This shift aims to reduce overall PLT utilization.

Purpose of the Study:

  • To evaluate the impact of transitioning to a lower prophylactic PLT transfusion threshold (10 x 10(9)/L) from a previous threshold (20 x 10(9)/L).
  • To assess changes in PLT transfusion practices and overall usage at an academic hospital.

Main Methods:

  • Prospective data collection at a single academic hospital.
  • Comparison of PLT transfusion practices before and after the implementation of the 10 x 10(9)/L threshold.

Main Results:

  • A total of 503 patients received 7401 PLT transfusions, with 74% being prophylactic.
  • In the initial phase (20 x 10(9)/L threshold), 53% of transfusions were given with pretransfusion PLT counts <20 x 10(9)/L and 20% <10 x 10(9)/L.
  • After implementing the 10 x 10(9)/L threshold, 28% of transfusions were administered at this level.

Conclusions:

  • A significant proportion of prophylactic PLT transfusions were administered at counts exceeding the recommended trigger levels.
  • While the new guidelines influenced transfusion behavior, the overall reduction in PLT usage was minimal.
  • Substantial reductions in prophylactic PLT transfusion costs and risks necessitate additional practice modifications, including adjustments to transfusion dose and sampling intervals.