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Related Experiment Videos

Plateletapheresis program. II. Computer selection of HLA compatible donors.

D W Jorgensen, J G McFarland, R S Hillman

    Transfusion
    |July 1, 1984
    PubMed
    Summary

    A new system efficiently identifies human leukocyte antigen (HLA) compatible donors for platelet-alloimmunized patients. This approach expands donor pools, ensuring adequate platelet transfusion support for most patients with minimal donor impact.

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    Area of Science:

    • Immunogenetics
    • Transfusion Medicine
    • Computational Biology

    Background:

    • Platelet-alloimmunized patients require human leukocyte antigen (HLA) matched platelet transfusions.
    • Identifying compatible donors for these patients is challenging due to HLA polymorphism.
    • Existing methods for donor selection can be time-consuming and costly.

    Purpose of the Study:

    • To develop a rapid, cost-effective data entry and computerized matching system for HLA compatible cytapheresis donors.
    • To improve the selection of donors for platelet-alloimmunized patients.
    • To expand the donor pool by considering HLA antigen similarities.

    Main Methods:

    • Development of a user-oriented, computer-prompted data entry and matching system.
    • Implementation of a strategy to treat HLA antigen splits and cross-reactive antigens as identical to broaden compatibility.

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  • Evaluation of system performance with a 500-member donor pool supporting a large patient population.

    • Main Results:

    • The system identified an average of 3.4 compatible donors per patient.
    • Transfusion support was inadequate for only 4% of thrombocytopenic recipients.
    • Donation frequency among participating donors was not excessive, averaging 2.8 donations per cytapheresis participant over 7 months.

    Conclusions:

    • The developed system provides an efficient and effective method for selecting HLA compatible cytapheresis donors.
    • Treating HLA antigen splits and cross-reactive antigens as identical significantly expands the available donor pool.
    • This approach ensures adequate platelet transfusion support for most alloimmunized patients while minimizing donor burden.