Donor-specific blood transfusion (DST) was introduced to achieve better graft survival. However, its benefits are controversial considering the immunosuppression of cyclosporine (CYA) or tacrolimus (Tac), and its long-term effects have not been well discussed. Of the 40 patients who received DST with CYA, 3 (7.5%) became cross-match positive. Of the 37 patients with negative cross-match, 34 patients received a one-haplotype-matched kidney and were compared to patients with one-haplotype-matched kidney transplant without preoperative DST (n = 13). Acute rejection within 3 months after transplant was 29.4% in the DST group, and 15.4% in the non-DST group. All rejection episodes were steroid resistant in the non-DST group. If the graft survival rates were calculated excluding non-immunological graft loss, graft survival rate was 91.0 and 72.8% at 5 and 10 years in the DST group, and 83.3% at 5 and 10 years in the non-DST group, respectively. The two graft survival lines converged 7 years and 7 months after transplantation. No beneficial effect of DST was statistically evident under CYA immunosuppression. In terms of the severity of acute rejection or the onset of chronic rejection, DST induced a small benefit, however, which seemed to disappear within 8 years after transplantation.
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