SHORT-TERM AND LONG-TERM FUNCTION OF CADAVERIC KIDNEYS FROM PEDIATRIC DONORS IN RECIPIENTS TREATED WITH CYCLOSPORINE

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Abstract
Short and long-term renal function of 67 cyclosporine-prednisone (CsA-Pred)-treated recipients of pediatric cadaveric donor kidneys followed for up to 68 months (means 16 months) were compared with 67 recipients of adult kidneys (group 3), who were demographically matched for recipient age, sex, race, cause of disease, HLA compatibility, ABO blood type, and retransplant status. Thirty-seven of the pediatric kidneys came from donors .ltoreq. 10 years old (group 1) and 30 from donors 11-16 years old (group 2). Group 1 displayed impaired short-term graft function: a significantly higher mean value of the nadir serum creatinine (SCr; 2.35 versus 1.63 mg/d), a lower maximal creatinine clearance during the first 30 days (50.3 versus 65.7 ng/dl1.73 m2), and a longer time to achieve the nadir creatinine (22.1 versus 17.2 days). Group 1 transplants also had a higher mean nadir creatinine at 3 months and a lower mean creatinine (CCl) at 3 and 6 months. By 12 months the values in the group 1 pediatric kidneys were similar to those using the group 3 adult grafts. Therefore, CsA therapy did not preclude compensatory graft function. Group 2 grafts showed intermediate short-term function relative to groups 1 and 3. Mean SCr and CCl showed progressive improvement over time, significantly better than adult kidneys at two years. Graft loss was significantly greater at two years in pediatric compared with adult grafts, but significantly better than our historical controls using azathioprine-prednisone immunosuppression.