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Double positivity for antineutrophil cytoplasmic antibody (ANCA) and anti-glomerular basement membrane antibody could predict end-stage renal disease in ANCA-associated vasculitis: a monocentric pilot study

Authors
 Byung-Woo Yoo  ;  Sung Soo Ahn  ;  Seung Min Jung  ;  Jason Jungsik Song  ;  Yong-Beom Park  ;  Sang-Won Lee 
Citation
 CLINICAL RHEUMATOLOGY, Vol.39(3) : 831-840, 2020 
Journal Title
 CLINICAL RHEUMATOLOGY 
ISSN
 0770-3198 
Issue Date
2020
Keywords
Anti-glomerular basement membrane antibody ; Antineutrophil cytoplasmic antibody ; End-stage renal disease ; Vasculitis
Abstract
OBJECTIVES: To investigate the detection rate of double positivity for antineutrophil cytoplasmic antibody (ANCA) and anti-glomerular basement membrane (GBM) antibody at diagnosis and its clinical implication during follow-up in Korean patients with ANCA-associated vasculitis (AAV). METHODS: We retrospectively reviewed the medical records of 96 Korean AAV patients. We obtained data at diagnosis and assessed the poor outcomes of AAV such as all-cause mortality, relapse and end-stage renal disease (ESRD). Comparison of cumulative survivals were analysed by the Kaplan-Meier survival analysis, and hazard ratios (HRs) were obtained by the multivariable Cox hazard model. RESULTS: Seven of 96 AAV patients (7.3%) had double positivity for ANCA and anti-GBM. Among variables at diagnosis, there were no significant differences between patients with double positivity for ANCA and anti-GBM and those without. In the cumulative survival analysis, AAV patient with double positivity for ANCA and anti-GBM at diagnosis exhibited the lower cumulative ESRD-free survival rate than those without (P = 0.044) and furthermore, than those with positive for only ANCA and those with double negativity (P = 0.022). Myeloperoxidase (MPO)-ANCA, renal manifestation and five-factor score at diagnosis were also associated with ESRD occurrence in AAV patients. In the multivariable Cox hazards model using these 4 variables, only double positivity for ANCA and anti-GBM exhibited the significant association with ESRD occurrence during follow-up (HR 3.831). CONCLUSIONS: Double positivity for ANCA and anti-GBM at diagnosis were observed in 7.3% of AAV patients, and it could predict ESRD occurrence during follow-up in Korean patients with AAV.Key Points• 7.3% of AAV patients had double positivity for ANCA and anti-GBM at diagnosis (total n = 96)• Double positivity for ANCA and anti-GBM could predict ESRD occurrence during follow-up (HR 9.021, P = 0.004)• AAV patients with double positivity for ANCA and anti-GBM exhibited the lower cumulative ESRD-free survival rate compared with those without (P = 0.044).
Full Text
https://link.springer.com/article/10.1007/s10067-019-04854-1
DOI
10.1007/s10067-019-04854-1
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Park, Yong Beom(박용범)
Song, Jason Jungsik(송정식) ORCID logo https://orcid.org/0000-0003-0662-7704
Ahn, Sung Soo(안성수) ORCID logo https://orcid.org/0000-0002-9002-9880
Yoo, Byung Woo(유병우)
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/22282913/175626
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