Abstract Number: 1059 • ACR Convergence 2023
Identification of Patients with Immune Checkpoint Inhibitor-Associated Inflammatory Arthritis Using Medicare Claims Data
Background/Purpose: Immune checkpoint inhibitor (ICI) associated inflammatory arthritis (ICI-IA) has been suggested to occur in approximately 3-6% of ICI-treated patients with cancer1 but most studies…Abstract Number: 1131 • ACR Convergence 2023
Clinical Phenotypes of IgG4-related Disease in a Multi-ethnic Singapore Cohort
Background/Purpose: IgG4-related disease (IgG4-RD) is an immune-mediated condition that is heterogenous and can result in organ failure. To understand the disease profile of our local…Abstract Number: 1136 • ACR Convergence 2023
Challenges in Diagnosing VEXAS Syndrome: Delayed Diagnosis, Misdiagnosis, and Associations with Specific Gene Mutations
Background/Purpose: The newly described VEXAS syndrome is a very heterogenous disease with rheumatologic and hematologic manifestations, caused by somatic mutations affecting UBA1 gene, that still…Abstract Number: 1175 • ACR Convergence 2023
Inclusion of All Myositis Specific Autoantibodies or Other Rashes Leads to Better Sensitivity but Lower Specificity of 2017 EULAR/ACR Myositis Classification Criteria for Dermatomyositis
Background/Purpose: Idiopathic Inflammatory Myopathies (IIM), collectively known as myositis, are heterogeneous disorders characterized by muscle weakness and muscle inflammation. ACR/EULAR classification criterion for IIM was…Abstract Number: 1228 • ACR Convergence 2023
Validation of the PEDiatric Behçet’s Disease Classification Criteria (PEDBD): An International Consensus-based Approach
Background/Purpose: Behçet's disease (BD) is an autoinflammatory disease characterized by a variable vessel vasculitis. In the past, several criteria have been created for adult BD…Abstract Number: 1545 • ACR Convergence 2023
Validation of the 2022 American College of Rheumatology/European Alliance of Associations for Rheumatology Classification Criteria in Patients with ANCA-associated Vasculitis
Background/Purpose: The early diagnosis of ANCA-associated vasculitis (AAV) and treatment initiation may prevent progression to end organ damage, particularly renal disease. Based on the Vasculitis…Abstract Number: 044 • 2023 Pediatric Rheumatology Symposium
Validation of Newly Proposed Classification Criteria for Pediatric Chronic Nonbacterial Osteomyelitis: A Virginia Cohort
Background/Purpose: Chronic nonbacterial osteomyelitis (CNO) is an aseptic autoinflammatory bone disease of unknown etiology. This diagnosis can be delayed due to the non-specific nature of…Abstract Number: 2023 • ACR Convergence 2022
Salivary Autoantibodies in Sicca Patients Are Associated with Dry Symptoms
Background/Purpose: Sjögren’s Syndrome (SS) diagnosis depends on clinic examinations that involve measurements of serum levels of anti-Ro\SSA, anti-La\SSB, and rheumatoid factor antibodies; the first is…Abstract Number: 2257 • ACR Convergence 2022
MRI Spinal Lesions in Patients Without MRI or Radiographic Lesions in the Sacroiliac Joints Typical of Axial Spondyloarthritis
Background/Purpose: There is limited data as to the frequency of spinal lesions on MRI in patients without MRI or radiographic features typical of sacroiliac joint…Abstract Number: 0334 • ACR Convergence 2022
Performance of Diagnosis Codes for Identification of Prevalent Lupus Nephritis Patients from Electronic Health Records
Background/Purpose: Real-world data could provide valuable information in the study of lupus nephritis (LN), if these cases could be reliably identified. A lack of ability…Abstract Number: 0433 • ACR Convergence 2022
Clustering of Anti-neutrophil Cytoplasmic Antibody-associated Vasculitis – Using a Pre-processed Harmonised Dataset
Background/Purpose: The sub-classification of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) has been a long-standing debate. Unsupervised learning has previously been used for partitioning of phenotypic…Abstract Number: 0452 • ACR Convergence 2022
Evaluation of the 2022 ACR/EULAR Classification Criteria for ANCA-Associated Vasculitis in a Population-based Cohort from Sweden
Background/Purpose: The classification of ANCA- associated vasculitis (AAV) has been an area of controversy for many years. Available classifications and definitions are either overlapping and/or…Abstract Number: 0453 • ACR Convergence 2022
Validation of the 2022 – American College of Rheumatology/European Alliance of Associations for Rheumatology Classification Criteria in Patients with ANCA Associated Vasculitis
Background/Purpose: The purpose of this study was to validate the recently published 2022 American College of Rheumatology/European Alliance of Associations for Rheumatology Classification Criteria for…Abstract Number: 0455 • ACR Convergence 2022
Performance of 2022 American College of Rheumatology/European Alliance of Associations for Rheumatology Classification Criteria in Turkish Vasculitis Patients
Background/Purpose: The American College of Rheumatology (ACR)-1990 criteria is the most used method for the classification of ANCA Associated Vasculitis (AAV). However, with ACR-1990 criteria,…Abstract Number: 0456 • ACR Convergence 2022
Application of Adult ACR/EULAR 2022 Classification Criteria in Pediatric Vasculitis Patients
Background/Purpose: Previous classification of childhood vasculitis used 1990 ACR criteria for classifying granulomatosis with polyangiitis (GPA) and eosinophilic granulomatosis with polyangiitis (EGPA),. In 2008, EULAR/PRINTO/PRES…
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