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Clinicopathologic characteristics of polyomavirus nephropathy in renal transplantation: 101 cases of experience in single center / 中华泌尿外科杂志
Chinese Journal of Urology ; (12): 251-255, 2018.
Article in Chinese | WPRIM | ID: wpr-709514
Responsible library: WPRO
ABSTRACT
Objective To explore the clinicopathologic characteristics of polyomavirus nephropathy (PyVN) in renal transplantation.Methods Clinicopathological data from 101 cases of PyVN from January 2006 to October 2016 in our hospital were collected and analyzed retrospectively.There were 72 males and 29 females.The mean time from operation to the diagnosis of PyVN was 16.5 months (2.2-63.9 months),with 86 cases (85.1%) occurring within 2 years.The indications for biopsy included elevated serum creatinine in 81 cases (80.2%),elevated serum creatinine with proteinuria in 13 (12.9%) cases,active BK virus(BKV) infection in 5 cases (5.0%) and proteinuria in 2 cases (2.0%).Results BK viruia was detected in 98 (97.0%) recipients with viral loads of 1.5 × 109 (0-9.0 × 1011) copies/ml,and BK viremia in 80 (79.2%) recipients with viral loads of 1.8 × 104 (0-2.1 × 107) copies/ml.5 patients lost their graft function at biopsy and the other 96 patients reserved graft function with serum creatinine of 187.0 μmol/L.After 20.1 (3.7-109.6) months of follow-up,19 (18.8%) patients lost their graft function.The average serum creatinine of the 77 patients with graft function was 165.0 μmol/L,with no statistical difference (P > 0.05) compared with that of patients at diagnosis.There were 18 cases of stage A,72 cases of stage B and 11 cases of stage C with 5-year allograft cumulative survival of 92.9%,82.8% and 55.6%,respectively.Conclusions PyVN can occur within 5 years after renal transplantation,mostly within 2 years.The typical clinical manifestations include elevated serum creatinine,BK viruia and BK viremia.The severe the histopathological lesions were correlated the worse the clinical prognosis.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Urology Year: 2018 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Urology Year: 2018 Type: Article