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ANCA positivity at the time of renal biopsy is associated with chronicity index of lupus nephritis

Authors
 Jung Yoon Pyo  ;  Seung Min Jung  ;  Jason Jungsik Song  ;  Yong-Beom Park  ;  Sang-Won Lee 
Citation
 RHEUMATOLOGY INTERNATIONAL, Vol.39(5) : 879-884, 2019 
Journal Title
 RHEUMATOLOGY INTERNATIONAL 
ISSN
 0172-8172 
Issue Date
2019
Keywords
Antineutrophil cytoplasmic antibody ; Histology ; Lupus nephritis ; Prognosis ; Systemic lupus erythematosus
Abstract
We investigated the association of antineutrophil cytoplasmic antibody (ANCA) positivity with lupus nephritis (LN) activity, histological features and prognosis in Korean patients with biopsy-proven LN having the results of both myeloperoxidase (MPO-ANCA) and proteinase 3 (PR3)-ANCA. We retrospectively reviewed the medical records of 91 LN patients having the results of ANCA. We divided patients with LN into the two groups according to the ANCA positivity. We collected clinical and laboratory data at kidney biopsy and histological features such as LN class including class I, II, III, IV-S, IV-G and V, and activity and chronicity index. We evaluated prognosis of LN during the follow-up by death and kidney failure. Twelve of 91 patients (13.2%) had ANCA at kidney biopsy. There were no differences in demographic data, comorbidities, reasons for kidney biopsy and laboratory data at kidney biopsy between patients with and without ANCA. In 12 LN patients with ANCA, Class III was the most frequently observed LN class (41.7%), while in 79 LN patients without ANCA, class IV-G was the most often detected LN class (35.4%). There were no meaningful differences in classes of LN between the two groups. On the other hand, patients with ANCA exhibited the higher median chronicity index than those without (2.5 vs. 1.0, P = 0.028), unlike activity index. ANCA positivity exhibited no association with death or kidney failure during the follow-up. ANCA positivity at kidney biopsy is associated with chronicity index of LN.
Full Text
https://link.springer.com/article/10.1007%2Fs00296-019-04263-2
DOI
10.1007/s00296-019-04263-2
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Park, Yong Beom(박용범)
Song, Jungsik Jason(송정식) ORCID logo https://orcid.org/0000-0003-0662-7704
Lee, Sang Won(이상원) ORCID logo https://orcid.org/0000-0002-8038-3341
Jung, Seung Min (정승민) ORCID logo https://orcid.org/0000-0003-3465-2181
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/169583
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