Jun 15, 2019

Predictive factors of renal involvement in cryoglobulinaemia: a retrospective study of 153 patients

Clinical Kidney Journal
Vladimir ColicheDenis Fouque

Abstract

The course of cryoglobulinaemia varies widely, from asymptomatic patients to severe vasculitis syndrome. Renal involvement (RI) is the major prognostic factor, and frequently occurs several years after diagnosis. However, predictive factors for RI are not well known. The aim of our study was to identify RI predictive factors during cryoglobulinaemia. We retrospectively reviewed the clinical charts of a consecutive series of 153 patients positive for cryoglobulinaemia in the University Hospital of Lyon (France). RI was defined either histologically or biologically if cryoglobulinaemia was the only possible cause of nephropathy. Among the 153 positive patients (mean age 55 years, 37% male), cryoglobulinaemia was associated with RI in 45 (29%) patients. Sixty-five percent of patients had Type II cryoglobulinaemia, 28% had Type III and 7% had Type I. Autoimmune diseases were the most common aetiology (48%), followed by infectious diseases (18%) and lymphoproliferative disorders (13%). Membranoproliferative glomerulonephritis was the main histological pattern (93% of the 14 histological analyses). A multivariable logistic regression showed that Type II cryoglobulinaemia, a high serum cryoglobulin concentration, the presence of an Ig...Continue Reading

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Mentioned in this Paper

Vasculitis
Study
Patterns
Radionuclide Imaging
M Protein, multiple myeloma
Lymphoproliferative Disorders
Hypersensitivity Reaction Mediated by Immune Complex
Glomerulonephritis, Membranoproliferative
Kidney
Diabetes

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