Use of a cloud-based search engine of a centralized donor database to identify historical antigen-negative units in hospital inventories.

Background: The provision of units with antigen-negative attributes is required for alloimmunized transfusion recipients and to avoid alloimmunization among patients on chronic transfusion support. Recent evidence confirms that the demand for antigen-typed units is increasing.

Study Design And Methods: A cloud-based search engine was designed by the blood center to find antigen-negative units.