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Transplant glomerulopathy: clinico-pathologic features

dc.contributor.authorSilva, C
dc.contributor.authorCotovio, P
dc.contributor.authorMarques, M
dc.contributor.authorAfonso, N
dc.contributor.authorSancho, MR
dc.contributor.authorCarvalho, F
dc.contributor.authorTrindade, H
dc.contributor.authorCarreira, A
dc.contributor.authorCampos, M
dc.contributor.authorNolasco, F
dc.date.accessioned2013-10-16T14:22:25Z
dc.date.available2013-10-16T14:22:25Z
dc.date.issued2013
dc.description.abstractTransplant glomerulopathy is a sign of chronic kidney allograft damage. It has a distinct morphology and is associated with poor allograft survival. We aimed to assess the prevalence and clinic-pathologic features of transplant glomerulopathy, as well as determine the functional and histological implications of its severity. We performed a single-centre retrospective observational study during an eight-year period. Kidney allograft biopsies were diagnosed and scored according to the Banff classification, coupled with immunofluorescence studies. The epidemiology, clinical presentation, outcomes (patient and graft survival) and anti-HLA alloantibodies were evaluated. Transplant glomerulopathy was diagnosed in 60 kidney transplant biopsies performed for clinical reasons in 49 patients with ABO compatible renal transplant and a negative T-cell complement dependent cytotoxicity crossmatch at transplantation. The estimated prevalence of transplant glomerulopathy was 7.4% and its cumulative prevalence increased over time. C4d staining in peritubular capillaries (27.6%) was lower than the frequency of anti-HLA antibodies (72.5%), the majority against both classes I and II. Transplant glomerulopathy was associated with both acute (mainly glomerulitis and peritubular capillaritis) and chronic histologic abnormalities. At diagnosis, 30% had mild, 23.3% moderate and 46.7% severe transplant glomerulopathy. The severity of transplant glomerulopathy was associated with the severity of interstitial fibrosis. Other histological features, as well as clinical manifestations and graft survival, were unrelated to transplant glomerulopathy severity.por
dc.identifier.citationPort J Nephrol Hypert 2013; 27(3): 209-215por
dc.identifier.urihttp://hdl.handle.net/10400.4/1583
dc.language.isootherpor
dc.peerreviewedyespor
dc.publisherSociedade Portuguesa de Nefrologiapor
dc.subjectGlomérulos Renaispor
dc.subjectTransplantação de Rimpor
dc.subjectBiópsiapor
dc.subjectSobrevivência de Enxertopor
dc.subjectGlomerulonefritepor
dc.subjectRejeição de Enxertopor
dc.titleTransplant glomerulopathy: clinico-pathologic featurespor
dc.title.alternativeGlomerulopatia do transplante: análise clínico-patológicapor
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspor
rcaap.typearticlepor

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