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Article: Outcome of IgA nephropathy in adults graded by chronic histological lesions

TitleOutcome of IgA nephropathy in adults graded by chronic histological lesions
Authors
KeywordsBerger's disease
Issue Date2000
Citation
American Journal of Kidney Diseases, 2000, v. 35, n. 3, p. 392-400 How to Cite?
AbstractThis prognostic study of primary immunoglobulin A (IgA) nephropathy focused on chronic irreversible glomerular sclerosis and Interstitial fibrosis, based on the premise that this disease is characterized by a protracted and, for many, progressive course. We used a chronicity-based histological grading system to assess the biopsy specimens of 126 adults with IgA nephropathy over a median follow-up of 10 years. Our grading system included a glomerular grading (GG) of 1 to 3 based on the extent of glomerular sclerosis, a tubulointerstitial grading (TIG) of 1 to 3 based on the degree of tubular loss or interstitial fibrosis, and the evaluation of hyaline arteriolosclerosis (HA). These three histological parameters were correlated with each other and with serum creatinine level, degree of proteinuria, and blood pressure at the time of renal biopsy. Univariate analysis showed that these three histological and three clinical parameters were significantly correlated with renal survival. By multivariate analysis using the Cox regression model, GG, serum creatinine level, and degree of proteinuria represented independent prognostic factors of renal survival. For a subset of patients at a relatively early stage of disease with a serum creatinine level less than 130 μmol/L at the time of biopsy, all three histological features and degree of proteinuria were significantly correlated with renal survival, and GG was the only independent prognostic factor for renal outcome. This study shows that glomerular sclerosis represents the most important prognostic factor in adult patients with primary IgA nephropathy and has a strong predictive value. Our chronicity-based histological grading system not only correlates well with the natural history of IgA nephropathy but is also reproducible and relatively simple to apply. (C) 2000 by the National Kidney Foundation, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/228435
ISSN
2015 Impact Factor: 6.269
2015 SCImago Journal Rankings: 2.313

 

DC FieldValueLanguage
dc.contributor.authorTo, Ka Fai-
dc.contributor.authorChoi, Paul C L-
dc.contributor.authorSzeto, Cheuk Chun-
dc.contributor.authorLi, Philip K T-
dc.contributor.authorTang, Nelson L S-
dc.contributor.authorLeung, Chi Bon-
dc.contributor.authorWang, Angela Y M-
dc.contributor.authorHo, Kelvin K L-
dc.contributor.authorWong, Teresa Y H-
dc.contributor.authorLui, Sui Fai-
dc.contributor.authorLai, Fernand Mac Moune-
dc.date.accessioned2016-08-13T08:02:24Z-
dc.date.available2016-08-13T08:02:24Z-
dc.date.issued2000-
dc.identifier.citationAmerican Journal of Kidney Diseases, 2000, v. 35, n. 3, p. 392-400-
dc.identifier.issn0272-6386-
dc.identifier.urihttp://hdl.handle.net/10722/228435-
dc.description.abstractThis prognostic study of primary immunoglobulin A (IgA) nephropathy focused on chronic irreversible glomerular sclerosis and Interstitial fibrosis, based on the premise that this disease is characterized by a protracted and, for many, progressive course. We used a chronicity-based histological grading system to assess the biopsy specimens of 126 adults with IgA nephropathy over a median follow-up of 10 years. Our grading system included a glomerular grading (GG) of 1 to 3 based on the extent of glomerular sclerosis, a tubulointerstitial grading (TIG) of 1 to 3 based on the degree of tubular loss or interstitial fibrosis, and the evaluation of hyaline arteriolosclerosis (HA). These three histological parameters were correlated with each other and with serum creatinine level, degree of proteinuria, and blood pressure at the time of renal biopsy. Univariate analysis showed that these three histological and three clinical parameters were significantly correlated with renal survival. By multivariate analysis using the Cox regression model, GG, serum creatinine level, and degree of proteinuria represented independent prognostic factors of renal survival. For a subset of patients at a relatively early stage of disease with a serum creatinine level less than 130 μmol/L at the time of biopsy, all three histological features and degree of proteinuria were significantly correlated with renal survival, and GG was the only independent prognostic factor for renal outcome. This study shows that glomerular sclerosis represents the most important prognostic factor in adult patients with primary IgA nephropathy and has a strong predictive value. Our chronicity-based histological grading system not only correlates well with the natural history of IgA nephropathy but is also reproducible and relatively simple to apply. (C) 2000 by the National Kidney Foundation, Inc.-
dc.languageeng-
dc.relation.ispartofAmerican Journal of Kidney Diseases-
dc.subjectBerger's disease-
dc.titleOutcome of IgA nephropathy in adults graded by chronic histological lesions-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.pmid10692264-
dc.identifier.scopuseid_2-s2.0-0033999130-
dc.identifier.volume35-
dc.identifier.issue3-
dc.identifier.spage392-
dc.identifier.epage400-

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