[Serum cyclosporine levels in patients after kidney transplantation]

In this study we have analyzed the cyclosporine levels in patients after kidney transplantation. The cyclosporine levels are determined by using fluorescence polarization immune-assay and monoclonal whole blood test. We analyzed nine patients with transplanted kidneys who were on specific immunosuppressive cyclosporine therapy. The cyclosporine determination was performed in these patients three times in the span of 14 to 29 days. The cyclosporine levels in seven patients were in reference interval between 100 and 300 ng/ml of whole blood. In the first determination the values in two patients were out of reference interval, one value was lower, and the other one was higher then reference interval. In second determination after dose correction in patients who had lower cyclosporin level the new level was normal and the other patient cyclosporine value was lower then in the first determination, but still a little higher then reference values.