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Pediatric-onset mixed connective tissue disease

Richard J Mier1, Michael Shishov, Gloria C Higgins

  • 1Shriners Hospital for Children, 1900 Richmond Road, Lexington, KY 40502, USA. rmier@shrinenet.org

Insights

Pediatric-onset mixed connective tissue disease (MCTD) is not benign but has lower mortality rates compared to adult-onset MCTD. This study reviews existing literature and presents 34 new pediatric cases.

Area of Science:

  • Rheumatology
  • Pediatric autoimmune diseases

Background:

  • Mixed connective tissue disease (MCTD) is a rare autoimmune disorder.
  • Pediatric-onset MCTD is less understood than adult-onset MCTD.

Purpose of the Study:

  • To review the current literature on pediatric-onset MCTD.
  • To present data from 34 new cases of pediatric-onset MCTD.
  • To compare the clinical characteristics and outcomes of pediatric-onset MCTD with adult-onset MCTD.

Main Methods:

  • Literature review of pediatric-onset MCTD.
  • Retrospective analysis of 34 new pediatric cases.

Main Results:

  • Pediatric-onset MCTD, while serious, demonstrates lower mortality rates than adult-onset MCTD.
  • The study details the clinical presentation and progression of 34 pediatric cases.

Conclusions:

  • Pediatric-onset MCTD requires careful management but is associated with a better survival outlook than in adults.
  • Further research is needed to fully elucidate the long-term prognosis and optimal treatment strategies for pediatric MCTD.

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