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Renal pathology and clinical presentations of polyomavirus nephropathy in simultaneous kidney pancreas transplant recipients compared with kidney transplant recipients

Renal pathology and clinical presentations of polyomavirus nephropathy in simultaneous kidney pancreas transplant recipients compared with kidney transplant recipients

Transplantation Proceedings 36(4): 1095-1096

The purpose of this study was to describe and compare the renal histopathology and clinical course of simultaneous kidney-pancreas transplant (SKP) recipients with kidney transplant (KT) recipients with polyomavirus nephropathy (PVN). Between 1997 and 2002, 20 patients (7 SKP, 13 KT) were diagnosed with PVN. Clinical characteristics and outcomes of PV-N were correlated with histopathologic examinations of renal allograft biopsy and compared between SKP and KT recipients. There were no differences in demographics between SKP and KT recipients with PV-N. The mean time to PVN was 611 (172 to 1174) days posttransplant in SKP and 343 (83 to 720) days posttransplant in KT (P =.05). The serum creatinine at the time of diagnosis was similar between SKP and KT recipients. All patients were treated with reduction in immunosuppression. After a median follow-up of 2 years, the patient survival was 71% in SKP and 100% in KT. Four grafts (57%) were lost owing to PVN in SKP group and three grafts (23%) were lost owing to PVN in the KT group. More patients (43%) in SKP had a history of acute rejection prior to diagnosis of PVN compared to KT (8%) and biopsy-proven tacrolimus nephrotoxicity prior to PVN was more common in SKPT (86%) than in KT (8%) patients (P <.05). SKP patients with evidence of diffuse fibrosis and high total sum scores at time of presentation all subsequently lost their grafts. SKP recipients with PVN had a worse clinical course than KT recipients.

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Accession: 012506520

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PMID: 15194381

DOI: 10.1016/j.transproceed.2004.04.062

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