P036 Juvenile Idiopathic Arthritis in adulthood: outcomes of oligo and polyarticular forms?

Abstract Background Juvenile idiopathic arthritis (JIA) is the most common chronic inflammatory rheumatic disease of childhood that can cause major physical disability, impairing patients' ability to lead a normal adult life. The objective of this study was to assess the outcomes of oligo- and...

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Published in:Rheumatology (Oxford, England) England), 2021-11, Vol.60 (Supplement_5)
Main Authors: Saoussen, Miladi, Yasmine, Makhlouf, Alia, Fazaa, Mariem, Sellami, Kmar, Ouenniche, Leila, Souabni, Selma, Kassab, Selma, Chekili, Kawther, Ben Abdelghani, Ahmed, Laatar
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Language:English
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Summary:Abstract Background Juvenile idiopathic arthritis (JIA) is the most common chronic inflammatory rheumatic disease of childhood that can cause major physical disability, impairing patients' ability to lead a normal adult life. The objective of this study was to assess the outcomes of oligo- and polyarticular JIA in adulthood as well as the progression to authentic rheumatoid arthritis (RA). Methods We conducted a retrospective study including adult patients with JIA (diagnosed according to the International League of Associations for Rheumatology [ILAR]). Data collected included age, gender, disease characteristics (JIA subtype, disease duration). The progression to an authentic RA was determined by checking the response to the ACR/EULAR 2010 classification criteria. Results Twenty-eight patients were included in this study. There was a female predominance with a sex ratio of 1.5. The mean age of disease onset was 6 years and 2 months [2–17]. The mean age at inclusion was 29.5 years [18–64]. The frequency of each JIA subtype was as follows: polyarticular with RF + (n = 14), polyarticular with RF- (n = 9), oligoarthritis (n = 5). The polyarticular forms: RF+ and RF- evolved into genuine seropositive and seronegative RA in 71.4% and 66.7% of cases, respectively. Among the oligoarticular JIA subtype, an extension of the disease to a seronegative RA was noted in one patient (20%). Hip involvement was noted in 20% of patients. Carpal tunnel syndrome and elbow arthritis were found in 28.5% and 14.3% of patients, respectively. Regarding treatment modalities and at the time of recruitment, 36.3% of RAs were treated with Methotrexate, and 33% were on biological treatment. Ten percent of the patients dropped out of school because of disease flares and deformities. Conclusion Our study showed oligo- and polyarticular JIA evolves in most of the cases towards an authentic RA causing deformities and handicaps. Earlier management is necessary to allow a better transition to adulthood.
ISSN:1462-0324
1462-0332
DOI:10.1093/rheumatology/keab722.028