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Published in: Rheumatology International 8/2012

01-08-2012 | Original Article

ISN/RPS 2003 class II mesangial proliferative lupus nephritis: a comparison between cases that progressed to class III or IV and cases that did not

Authors: Seung Geun Lee, Yong Mee Cho, Min Wook So, Sung Soo Kim, Yong-Gil Kim, Chang-Keun Lee, Bin Yoo

Published in: Rheumatology International | Issue 8/2012

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Abstract

Lupus nephritis (LN) class II has generally been considered a mild form of LN with a good response to treatment. Although the number was small, there have also been reports on later progression to class III or IV, resulting in poor renal and patient outcome. This study aims to review cases of LN class II to analyze differences between cases that progressed to class III or IV and cases that did not. We retrospectively analyzed 15 cases of LN class II among 277 cases of biopsy-proven lupus nephritis diagnosed in a tertiary medical center over about 14 years. Among the 15 patients, 5 patients progressed to class III or IV. Biopsy specimens were reviewed by a pathologist according to the ISN/RPS 2003 classification. Response to treatment was evaluated at 6 months after treatment. On fluorescence microscopy (IF), there was significantly higher degree of deposition in the glomeruli of IgM, IgA and C4 in the progression group than in the non-progression group. At 6 months after treatment, there was a trend toward higher rates of complete remission in the non-progression group (90%) compared with those in the progression group (40%, p = 0.077). Five of the 15 cases of ISN/RPS 2003 class II glomerulonephritis progressed to class III or IV over a mean of 5 years. The degree of immune-complex deposition for IgM, IgA and C4 in the glomeruli was significantly higher in the progression group.
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Metadata
Title
ISN/RPS 2003 class II mesangial proliferative lupus nephritis: a comparison between cases that progressed to class III or IV and cases that did not
Authors
Seung Geun Lee
Yong Mee Cho
Min Wook So
Sung Soo Kim
Yong-Gil Kim
Chang-Keun Lee
Bin Yoo
Publication date
01-08-2012
Publisher
Springer-Verlag
Published in
Rheumatology International / Issue 8/2012
Print ISSN: 0172-8172
Electronic ISSN: 1437-160X
DOI
https://doi.org/10.1007/s00296-011-1986-8

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