Eighteen-Year Follow-Up of a Retrospective Study of HLA Antibody on Kidney Graft Survival

An increasing number of studies have demonstrated adverse graft survival in patients who have anti-HLA antibodies, whether preformed or developed posttransplantation. This retrospective study used Lambda antigen tray-mixed (LAT-M) screening and Luminex HLA class I and 11 specificity assay to re-examine the impact of pretransplantation HLA antibody on long-term graft survival. In this study, pretransplantation sera from 288 renal patients were tested using the enzyme-linked immunosorbent assay (ELISA) method, I-AT-M. Among the 234 of the patients who did not have pretransplantation antibodies, 85% enjoyed 5-year functional graft survival, 76% 10-year functional graft survival, and 56% 15-year functional graft survival. The corresponding functional graft survival for the 54 patients who tested HLA antibody-positive was 65%, 53%, and 28%, respectively (P =.0021).