BackgroundIn 2012, a European initiative called Single Hub and Access point for pediatric Rheumatology in Europe (SHARE) was launched to optimise and disseminate diagnostic and management regimens in Europe for children and young adults with rheumatic diseases. Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease in children and uveitis is possibly its most devastating extra-articular manifestation. Evidence-based guidelines are sparse and management is mostly based on physicians’ experience. Consequently, treatment practices differ widely, within and between nations.ObjectivesTo provide recommendations for the diagnosis and treatment of JIA-associated uveitis.MethodsRecommendations were developed by an evidence-informed consensus process using the European League Against Rheumatism standard operating procedures. A committee was constituted, consisting of nine experienced paediatric rheumatologists and three experts in ophthalmology from Europe. Recommendations derived from a validated systematic literature review were evaluated by an Expert Committee and subsequently discussed at two consensus meetings using nominal group techniques. Recommendations were accepted if >80% agreement was reached (including all three ophthalmologists).ResultsIn total, 22 recommendations were accepted (with >80% agreement among experts): 3 on diagnosis, 5 on disease activity measurements, 12 on treatment and 2 on future recommendations.ConclusionsThe SHARE initiative aims to identify best practices for treatment of patients suffering from JIA-associated uveitis. Within this remit, recommendations for the diagnosis and treatment of JIA-associated uveitis have been formulated by an evidence-informed consensus process to suggest a standard of care for JIA-associated uveitis patients throughout Europe.

Objective. To develop a set of core outcome measures for use in randomized controlled trials (RCTs) and longitudinal observational studies in juvenile idiopathic arthritis (JIA)-associated uveitis. Methods. The literature relating to outcome measures used in studies of uveitis in childhood and adolescence was reviewed. A set of core outcomes and domains was established using the Delphi process. This was reviewed by a representative multinational interdisciplinary working group. Nominal group technique consensus was reached on face and content validity of the range and content of the domains. The outcomes and the appropriate instruments for uveitis trials were adapted to the age ranges of patients with JIA-associated uveitis. Results. Consensus was reached that data should be reported at defined time points in longitudinal studies with patients stratified by prognostic markers. Visual acuity testing should be age appropriate. The severity of uveitis (measured as anterior chamber cell grade) and duration of active inflammation should be documented. Visually significant structural complications should be recorded and quantified with standard measures. The responses to treatment and corticosteroidsparing effects of treatment should be documented. Patient-reported disease activity and age-specific uveitis-related quality of life should be reported using appropriate questionnaires. Conclusion. The proposed outcome measures in JIA-associated uveitis should aid in the standardization and comparison of future RCTs of the treatment regimens for this disease. The proposed outcome measures will be verified in a prospective validation study.

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