(VIDEO) With rising attention to anti-citrullinated protein antibodies (ACPA) in RA classification, what is the current significance of rheumatoid factor? Rheumatologist Josef Smolen tells how he and others at the Medical University of Vienna addressed the question.
Two autoantibodies, rheumatoid factor (RF) and anti-citrullinated protein antibodies (ACPA), compete for your attention in assessing the severity of rheumatoid arthritis. In this video from the American College of Rheumatology annual meeting , Dr. Josef Smolen describes the study in which they addressed the impact of ACPA on the need to assess RF.
You can read details of the study online. It's Abstract #421 in the ACR Abstract Supplement.