Impact of pretransplant exposure to allosensitization factors generating HLA antibodies in the Luminex era.

Aim: To identify the frequency of exposure to sensitizing factors and evaluate the risk ascribable to each sensitizing factor generating HLAabs measured by Luminex.

Methods: This is a retrospective cohort study that included 502 transplanted patients and 51 patients on the waiting list for a deceased donor graft. Patients were divided into 4 groups according to the %PRA: 0%, 1 to 19%, 20 to 49% and ≥50%.