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  • Title: Impact of sirolimus treatment in kidney allograft recipients with prolonged cold ischemia times: 5-year outcomes.
    Author: Boratynska M, Banasik M, Patrzalek D, Klinger M.
    Journal: Exp Clin Transplant; 2008 Mar; 6(1):59-66. PubMed ID: 18405247.
    Abstract:
    OBJECTIVES: Sirolimus, an effective and non-nephrotoxic immunosuppressant, may have an antiproliferative effect on renal tubular cells and increase their apoptosis, thus hindering the recovery of an injured kidney. The aim of this study was to evaluate the impact of combined sirolimus and cyclosporine therapy on the incidence and duration of delayed graft function and long-term graft function. MATERIALS AND METHODS: The study group consisted of 23 renal transplant recipients treated with a sirolimus-cyclosporine-prednisone regimen (sirolimus group). The reference group was composed of 23 patients treated with azathioprine-cyclosporine-prednisone. Because of a long cold ischemia time, all the patients were at high risk of developing delayed graft function. RESULTS: There was an equal frequency of delayed graft function in the sirolimus group compared with the reference group (39% vs 34.8%). The duration of delayed graft function was longer in sirolimus group compared with the reference group (21.2 +/- 12.2 days vs 6.8 +/- 2.5 days) (P < .004). The serum creatinine level at the 12th month was higher in patients with delayed graft function than it was in the remaining patients, independent of the immunosuppression protocol. One and 5-year graft survival rates were 100% and 87% in the sirolimus group, and 95% and 74% in the reference group. The 5-year patient survival rate was 100% in both groups. CONCLUSIONS: Sirolimus significantly retards the recovery from posttransplant renal failure, but it does not increase the incidence of delayed graft function. Sirolimus therapy should be initiated after recovery from posttransplant renal failure. Sirolimus treatment is beneficial for long-term graft survival.
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