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In patients with antineutrophil cytoplasmic antibody-associated vasculitis (AAV) and renal involvement, the development of end-stage renal disease (ESRD) remains an undesired issue. To date, reported predictors of renal outcome are mainly patients’ age, severe renal dysfunction and histopathological findings at presentation.1 2 Histopathological classification as defined by Berden et al was proposed to be helpful with the highest renal survival rates in the focal group and the poorest in the sclerotic group.3 4 Recently, Brix et al suggested the antineutrophil cytoplasmic antibody renal risk score (ARRS) to predict ESRD in patients with AAV.5 Unlike Berden's classification, ARRS combines histopathological findings (the percentage of normal glomeruli, tubular atrophy and interstitial fibrosis) with baseline glomerular filtration rate (GFR). Here, we aimed to assess the prognostic factors for renal survival and to evaluate the performances of Berden’s histopathological classification and ARRS for predicting ESRD.
We reviewed the medical records of all patients diagnosed …
Handling editor Josef S Smolen
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; externally peer reviewed.