• Media type: E-Article
  • Title: Overlapping Features in Kawasaki Disease-Related Arthritis and Systemic-Onset Juvenile Idiopathic Arthritis: A Nationwide Study in Japan
  • Contributor: Kanemasa, Hikaru; Nanishi, Etsuro; Takada, Hidetoshi; Ishimura, Masataka; Nishio, Hisanori; Honjo, Satoshi; Masuda, Hiroshi; Nagai, Noriko; Nishihara, Takahiro; Ishii, Tohru; Adachi, Takenori; Hara, Satoshi; Lin, Lisheng; Tomita, Yoshie; Kamizono, Junji; Komiyama, Osamu; Kohdera, Urara; Tanabe, Saori; Sato, Atsuo; Hida, Shinya; Yashiro, Mayumi; Makino, Nobuko; Nakamura, Yosikazu; Hara, Toshiro;
  • imprint: Frontiers Media SA, 2021
  • Published in: Frontiers in Pediatrics
  • Language: Not determined
  • DOI: 10.3389/fped.2021.597458
  • ISSN: 2296-2360
  • Keywords: Pediatrics, Perinatology and Child Health
  • Origination:
  • Footnote:
  • Description: <jats:p><jats:bold>Background:</jats:bold> Arthritis may occur after the diagnosis of Kawasaki disease (KD). Most cases are self-limiting; however, some patients require prolonged treatment.</jats:p><jats:p><jats:bold>Method:</jats:bold> To characterize KD-related arthritis, 14 patients who required arthritis treatment within 30 days after the diagnosis of KD were recruited from the 23rd KD survey in Japan. Twenty-six additional patients were included from our tertiary center and literature review cohorts.</jats:p><jats:p><jats:bold>Results:</jats:bold> The estimated prevalence of KD-related arthritis in Japan was 48 per 100,000 KD patients. Patients with KD-related arthritis had an older age at onset (52 vs. 28 months, <jats:italic>P</jats:italic> = 0.002) and higher rate of intravenous immunoglobulin (IVIG) resistance in comparison to those without arthritis (86 vs. 17%, <jats:italic>P</jats:italic> &amp;lt; 0.001). Among 40 patients, 18 had arthritis in the acute phase KD (continued fever-onset type) and 22 did in the convalescent phase (interval fever-onset type). Both showed a similar rate of complete KD or IVIG response. Interval-type patients required biologics for arthritis control less frequently (5 vs. 39%, <jats:italic>P</jats:italic> = 0.02) and had a higher 2-year off-treatment rate (100 vs. 43%, <jats:italic>P</jats:italic> = 0.009) than continued-type ones. Interval-types showed lower serum ferritin and interleukin-18 levels than continued-types. When continued-types were grouped according to whether or not they required biologics (<jats:italic>n</jats:italic> = 7 and <jats:italic>n</jats:italic> = 11, respectively), the former subgroup had higher ferritin and interleukin-18 levels (<jats:italic>P</jats:italic> = 0.01 and 0.02, respectively). A canonical discriminant analysis differentiated interval-type from continued-type with the combination of age, time to arthritis, and the ferritin and matrix metalloproteinase-3 levels.</jats:p><jats:p><jats:bold>Conclusion:</jats:bold> Arthritis requiring treatment is a rare complication of KD. KD-associated arthritis includes interval-type (KD-reactive) and continued-type (true systemic-onset juvenile idiopathic arthritis [JIA] requiring biologics), and overlapping arthritis, suggesting the pathophysiological continuity of autoinflammation between KD and JIA.</jats:p>
  • Access State: Open Access