The morphology of transplanted kidney is considered to be important for graft outcomes in early and late posttransplant period. Individual histological lesions at the time of kidney transplantation, such as sclerosis of glomeruli, vascular narrowing and interstitial fibrosis, and composite histological lesions, which integrate histopathological findings in different compartments, showed association with suboptimal graft outcomes. However there are no consistent association between individual or composite lesions and transplant outcomes. Some possible explanations for such inconsistent results are non-uniformity in grading histological lesions or in defining graft outcomes. Furthermore, studies vary in terms of patient selection, and some results are not corrected for covariates. It is also unclear, whether acute biopsy features associated with the donor kidney can provide prognostic information, in addition to the chronic lesions? This single-center study aimed to evaluate which acute and chronic histological lesions and composite histological scores in donor kidney intraoperative biopsies alone or in combination with clinical variables are best associated with short- and long-term kidney graft outcomes, such as impairment of early kidney allograft function, immunological acute kidney allograft rejection, pyelonephritis, allograft function at 1, 3, 6, 12 months, 2, 3, 4 and 5 years, and graft survival at 1 and 5 years.
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Five-year death-censored kidney allograft survival
Timeframe: Five years