What is the morbidity and mortality associated with pediatric mixed connective-tissue disorder (MCTD)?

Updated: Oct 24, 2018
  • Author: Marisa S Klein-Gitelman, MD, MPH; Chief Editor: Lawrence K Jung, MD  more...
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Literature describes pediatric mixed connective tissue disease from individual case reports to small series. Mortality is 0-50%. The review by Michels found a mortality figure of 7.6%. [8] More recent data assess pediatric mortality at 3-4 per 1000 population versus adult mortality at 12-23 per 1000 population. Serious organ involvement included 47% of patients with renal disease, 54% with restrictive lung disease, and 29% with GI disease. Although rare, morbidity from cerebral disease, cardiomyopathy, myopericarditis, and pulmonary hypertension has been reported and is associated with a significant risk of mortality.

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