ArticleThe Korean journal of internal medicine2022
Clinical impact of proteinase 3-antineutrophil cytoplasmic antibody positivity in eosinophilic granulomatosis with polyangiitis.
Article in The Korean journal of internal medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.
- Pooled it
- Clinical utility of proteinase 3-antineutrophil cytoplasmic antibody at diagnosis in predicting subsequent relapse in patients with microscopic polyangiitis.Frontiers in medicine · 2025Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
aimsThis study investigated the clinical implication of proteinase 3 (PR3)-antineutrophil cytoplasmic antibody (ANCA) in Korean patients with eosinophilic granulomatosis with polyangiitis (EGPA).
methodsAmong the 242 patients with ANCA-associated vasculitis identified from the hospital database, 49 patients with EGPA were selected and analysed in this study. Demographic, clinical, and laboratory data at diagnosis were reviewed to compare the features of patients with PR3-ANCA and without, as well as the clinical outcomes of relapse and end-stage renal disease (ESRD) during the follow-up period. The outcomes of patients with PR3-ANCA and without were compared by using the Kaplan-Meier survival analysis.
resultsThe median age of the patients was 54 years, 17 (34.7%) were male, and six (12.2%) patients had PR3-ANCA at baseline. The most common items of the 1990 American College of Rheumatology criteria for EGPA were sinusitis (95.9%) and asthma (or asthmatic history) (93.9%). During the follow-up, none died, eight experienced relapse and two progressed to ESRD. EGPA patients with PR3-ANCA exhibited peripheral eosinophilia less frequently than those without (50.0% vs. 88.4%, p = 0.047). On the other hand, EGPA patients with PR3-ANCA experienced relapse more often compared to those without (50.0% vs. 11.6%, p = 0.047), and the cumulative relapse-free survival rate was lower compared to those without PR3-ANCA (p = 0.012).
conclusionEGPA patients possessing PR3-ANCA at disease diagnosis had distinct clinical feature and outcome compared to those without PR3-ANCA. These results should be taken into account in the management of patients with EGPA.
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