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Behzad Einollahi, Saeed Taheri, Mhaboob Lessan-Pezeshki, Vahid Pourfarziani, Mahbobeh Sadat Hosseini, Eghlim Nemati, Mohammad Hassan Ghadiani, Shahin Abbaszadeh, Mohammad Hossein Nourbala
Ann Transplant 2009; 14(1): 18-22
Background: There is not a wide consensus on whether recommended target ranges for 2-hours post dose cyclosporine (CsA) blood level (C2) are generalizeable to all kidney recipient populations worldwide. In this study we aimed to assess in which C2 level we can obtain the least acute rejection (AR) episodes in our kidney transplanted patients.
Material/Method: In a retrospective cross-sectional study, we investigated all our renal recipients with at least a valid C2 blood level at the days between 5-9 post transplantation. All patients were under immunosuppressive therapy with CsA (Neoral), prednisolone and MMF.
Results: Hundred forty-four patients were eligible for inclusion in the study. Mean age of the study subjects at the time of transplantation was 36.8±16.6 years. 99 (69%) of the patients were male. Overall, 16 (11%) patients experienced AR during the first two weeks post-transplantation. Mean C2 blood levels for patients experiencing AR was 793±335 compared with 1028±391 for patients without AR (p=0.023). We found that none of the patients with a C2 level of higher than 1300 ng/mL experienced an episode of AR.
Conclusions: According to our findings, we recommend that for minimization purpose of the incident AR episodes among LURD kidney, a C2 blood level of higher than 1300 ng/mL to be obtained during the first week post-transplantation. Alongside, approaching specific C2 targets for patients with different drug regimen or genetic polymorphisms seem necessary.