James Christopher Bistolarides
Clinical Assistant Professor, Pediatrics - Rheumatology
Clinical Focus
- Pediatric Rheumatology
Professional Education
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Fellowship: Medical College of Wisconsin Dept of Pediatrics (2025) WI
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Board Certification: American Board of Pediatrics, Pediatrics (2018)
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Residency: University of Chicago Dept of Pediatrics (2018) IL
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Medical Education: Michigan State University College of Human Medicine (2015) MI
All Publications
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Effective performance of the 2022 American College of Rheumatology/European Alliance of Associations for Rheumatology classification criteria for Antineutrophil-Cytoplasmic-Antibody-Associated Vasculitis in Pediatric Patients: an ARChiVe Study.
Arthritis & rheumatology (Hoboken, N.J.)
2026
Abstract
OBJECTIVE: To assess the 2022-ACR/EULAR classification criteria for ANCA-associated vasculitis (AAV) in children with chronic small-to-medium vessel vasculitis.METHODS: A cohort of 574 patients, identified by physician's-(MD)-diagnosis in A-Registry-of-Childhood-Vasculitis, were classified by computation of registry data, as having granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA) or eosinophilic GPA (EGPA) after applying (1) ACR/EULAR AAV criteria and (2) pediatric-adapted European Medicines Agency (Ped-EMA) classification algorithm (incorporating Ankara GPA criteria). Venn diagrams compared the resulting GPA/MPA cohorts with MD-diagnosis. Sensitivity and specificity of criteria for GPA were evaluated against MD-diagnosis. Fisher's exact test evaluated differences in the frequencies of individual clinical features in GPA versus MPA.RESULTS: Comparing ACR/EULAR criteria against Ped-EMA-algorithm for classifying AAV, respectively, more patients were classified as GPA or MPA (n=396 versus 360), fewer had GPA (n=261 versus 288), more had MPA (135 versus 72), and fewer GPA cases co-classified as MPA (12% versus 28%); there were more differences between GPA and MPA in PVAS-defined clinical features (n=14 versus 10).When classifying GPA by ACR/EULAR or Ankara criteria, respectively sensitivity (74.5% versus 72.1%) was comparable, and specificity for ACR/EULAR criteria (93.9% versus 79.9%) was improved.CONCLUSION: The 2022 ACR/EULAR classification criteria for AAV performs at least as well as previous pediatric criteria and provide categorical MPA criteria where none existed previously; the criteria for GPA and MPA now specifically differentiate each other, with more differences between them in the frequencies of clinical features. Our findings support the preferential use of ACR/EULAR over Ankara criteria for GPA in pediatrics.
View details for DOI 10.1002/art.70172
View details for PubMedID 41958151