Pretransplant Single Antigen Bead–Detected HLA Antibodies in Kidney Transplant Long-term Outcome: A Single-Center Cohort Experience
| Autor: | Piergiorgio Messa, Antonino Cannavò, Mariano Ferraresso, Serena M. Passamonti, A. Espadas de Arias, Massimo Cardillo, Miriam Ramondetta, Annalisa Innocente, Anna Regalia |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Graft Rejection Male medicine.medical_specialty medicine.medical_treatment Single Center Gastroenterology Cohort Studies HLA Antigens Isoantibodies Internal medicine Humans Medicine Clinical significance Survival rate Dialysis Proportional Hazards Models Retrospective Studies Transplantation business.industry Proportional hazards model Histocompatibility Testing Graft Survival Hazard ratio Middle Aged Kidney Transplantation Cohort Female Surgery business Cohort study |
| Zdroj: | Transplantation Proceedings. 51:707-714 |
| ISSN: | 0041-1345 |
| Popis: | Single-antigen bead (SAB) platform permits the identification of antibodies not detectable by complement-dependent lymphocytotoxicity test, but their clinical significance is not completely understood. The aim of this study was to evaluate whether the presence of pretransplant SAB-detected antibodies is associated with the development of allograft failure. This is a single-center cohort study with 10-year follow-up in which 573 kidney recipients with negative pretransplant complement-dependent lymphocytotoxicity crossmatch who received transplants at the Kidney Transplant Center of Policlinico, Milan, from deceased donors between 1996 and 2005 were evaluated. Pretransplant plasma samples were retrospectively analyzed by SAB assay. Survival analyses were performed to assess the risk of allograft failures by SAB-detected antibodies. Pretransplant antibodies were found in 160 (28.0%) recipients, of whom 42 subsequently developed an allograft failure for a survival rate of 70.9% (95% confidence interval [CI), 63.5–78.4). Among those without antibodies, 58 (14.0%) returned to dialysis with a survival rate of 84.7% (95% CI, 81.0–88.4). In Cox regression analyses, patients with SAB-positivity had 2-fold higher risk of allograft failure than those who were SAB-negative (hazard ratio, 2.07; 95% CI, 1.39–2.79). Results did not change after adjustment for putative confounders. In conclusion, in this single-center cohort, 10-year allograft survival rate was significantly influenced by the presence of SAB-detected antibodies. |
| Databáze: | OpenAIRE |
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