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Related Experiment Videos

Case report: solid-phase platelet crossmatching to support the alloimmunized patient.

B A O'Connell1

  • 1University of Maryland Cancer Center, 22 South Greene Street, Baltimore, MD 21201, USA.

Immunohematology
|January 1, 1995
PubMed
Summary

Platelet crossmatching using a solid-phase red cell adherence assay identified compatible platelets for alloimmunized leukemia patients. This method successfully improved platelet counts, supporting its use for refractory thrombocytopenic patients.

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Area of Science:

  • Hematology
  • Immunology
  • Transfusion Medicine

Background:

  • Alloimmunized patients with leukemia often experience refractoriness to platelet transfusions.
  • Identifying compatible platelet donors is crucial for managing thrombocytopenia in these patients.

Purpose of the Study:

  • To evaluate the efficacy of solid-phase red cell adherence assay for platelet crossmatching.
  • To determine the success rate of transfusions with crossmatched platelets in alloimmunized leukemia patients.

Main Methods:

  • Solid-phase red cell adherence assay was employed for platelet crossmatching.
  • Corrected count increment (CCI) >7,500 defined a successful platelet transfusion.
  • Random platelet concentrates and apheresis donations were crossmatched and transfused.

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Main Results:

  • For Patient A, 4 out of 5 transfusions with crossmatched platelets were successful (CCI >7,500).
  • For Patient B, 71 out of 78 transfusions with crossmatched platelets were successful (CCI >7,500).
  • Platelet crossmatching identified suitable apheresis donors, significantly improving transfusion success rates.

Conclusions:

  • Solid-phase red cell adherence assay is effective for platelet crossmatching in alloimmunized patients.
  • Platelet crossmatching is a valuable strategy for supporting refractory thrombocytopenic patients.
  • This approach enhances transfusion efficacy and donor identification for specialized needs.