Development of Autoimmune Diseases Among Children With Pediatric Acute-Onset Neuropsychiatric Syndrome

Ma M, Masterson EE, Gao J, Karpel H, Chan A, Pooni R, Sandberg J, Rubesova E, Farhadian B, Willet T, Xie Y, Tran P, Silverman M, Thienemann M, Mellins E, Frankovich J. Development of Autoimmune Diseases Among Children With Pediatric Acute-Onset Neuropsychiatric Syndrome. JAMA Netw Open. 2024 Jul 1;7(7):e2421688. doi: 10.1001/jamanetworkopen.2024.21688. PMID: 39078633; PMCID: PMC11289697.

Conclusions and relevance: This study found that patients with PANS show signs of immune activation and vasculopathy during psychiatric symptom flares and have an increased risk of developing arthritis and other autoimmune diseases compared with the general pediatric population. The most common arthritis subtype was enthesitis-related arthritis. These findings suggest that PANS may be part of a multisystem inflammatory condition rather than an isolated psychiatric or neuroinflammatory disorder.

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