ACR_EULAR_RA v.1
Criteria developed by the ACR (American College of Rheumatology)/EULAR (European League Against Rheumatism) working groups in 2010 used to identify early signs that would make a high likelihood of “definite RA” (Rheumatoid Arthritis) of otherwise undiagnosed patients with undifferentiated synovitis.
The ACR/EULAR RA classification criteria has its latest version (2010) in the form of a 4-part classification criteria. These 4 parts are: A: Joint Involvement B: Serology C: Acute-phase reactants D: Duration of symptoms
To be used to differentiate patients amongst those who: • Have at least 1 joint with definite clinical synovitis (swelling) • With the synovitis not better explained by another disease. Classification criteria for RA is based on the summed score of all four parts A-D. A score of ≥6 out of the maximum of 10 is equivalent to a classification of “definite RA”. A score below but close to 6 warrants later monitoring due to the possible cumulative changes that may tip the patient into active disease.
The same 2 provisos as mentioned above should be observed for misuse: Not to be used unless the patients: • Have at least 1 joint with definite clinical synovitis (swelling) • With the synovitis not better explained by another disease. Also, a firm diagnosis of RA cannot be made only on the result of the patient fulfilling the classification criteria alone without also further confirmation and exclusion of other possible differential diagnoses.
Ref. 1: Aletaha D, Neogi T, Silman AJ, et al. 2010 Rheumatoid arthritis classification criteria: an American College of Rheumatology/European League against Rheumatism collaborative initiative. Ann Rheum Dis 2010; 69:1580–1588. Ref. 2: Aletaha, Daniel, et al. \"2010 rheumatoid arthritis classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative.\" Arthritis & Rheumatism 62.9 (2010): 2569-2581.
OBSERVATION.acr_eular_ra_classification.v1, EVALUATION.acr_eular_ra_classification_assessment.v1
