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  • Title: [Nephro-angiosclerosis in the graft: impact on graft survival. Study of 33 cases].
    Author: Bernadet-Monrozies P, Rostaing L, Modesto A, Cisterne JM, Durand D, Suc JM.
    Journal: Arch Mal Coeur Vaiss; 1995 Aug; 88(8):1153-7. PubMed ID: 8572864.
    Abstract:
    UNLABELLED: When early kidney transplant biopsies showed benign hypertensive nephrosclerosis, i.e. hyalin arteriosclerosis and/or interlobular arteries intimal thickening, they are thought to be of donor origin. Between 1987 and 1992, 439 cadaveric renal transplantations have been performed in our department: amongst them 97, i.e. 22% patients underwent a graft biopsy before the end of the first post transplant month (13 +/- 9.5 days). To ascertain if findings of early renal biopsy was predictive of eventual clinical outcome we analyzed renal function and blood pressure (BP) in the short and mid term. Nephrosclerosis lesions were found in 33 cases (group I) and were absent in the remaining 64 cases (group II). The 2 groups were not statistically different according to the time on dialysis, the recipient's age, the HLA matching, the cold ischemia time. The only statistically significant difference was the donor's age: 39.1 +/- 7 years in group I vs 26.9 +/- 8 years in group II (p = 0.0001). Delayed graft function was not different in the 2 groups (13 +/- 9 days group I vs 11 +/- 6 days group II). On the other hand, 30% of group I, patients required hemodialysis (9.8% in group II; p < 0.005). The incidence in graft rejection episodes was similar in both groups (50%) as well as surgical complications. Renal function was assessed by creatinine clearance at 1 and 2 years and at last follow-up visit (mean follow-up: 50.5 +/- 44 months in group I and 46.9 +/- 24 months in group II; p = Ns): it was similar in both groups (see table). The prevalence of hypertension (HTA) was significantly higher in group I than in group II at two years and last follow-up (*: p < 0.005). [table: see text] CONCLUSIONS: The age of donor is of importance in determining nephrosclerosis of the graft observed on early biopsies. Donor-related nephrosclerosis is a risk factor for the recipient of developing HTA without impairment of graft function in the mid term. In the context of early nephrosclerosis, the occurrence of acute rejection episode(s) is detrimental for the graft function.
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