Familial restrictive cardiomyopathy with skeletal abnormalities

Marcy L Schwartz1, Steven D Colan

  • 1Department of Cardiology, Children's Hospital, Boston, Massachusetts 02115, USA. marcy.schwartz@cardio.chboston.org

Insights

A genetic cause is likely for restrictive cardiomyopathy and skeletal abnormalities in a family. This rare heart condition has a poor prognosis, with affected children experiencing severe symptoms or death.

Area of Science:

  • Cardiology
  • Genetics
  • Pediatrics

Background:

  • Restrictive cardiomyopathy (RCM) is a rare and severe form of heart muscle disease.
  • Genetic etiologies are increasingly recognized in pediatric cardiomyopathies.
  • Skeletal and orthopedic abnormalities can sometimes be associated with systemic or genetic disorders.

Observation:

  • A family presented with 5 of 9 children diagnosed with restrictive cardiomyopathy.
  • Affected children also exhibited skeletal muscle and orthopedic abnormalities.
  • No other identifiable cause for the cardiomyopathy was found in this family.

Findings:

  • A probable genetic cause for restrictive cardiomyopathy and associated abnormalities is suggested in this family.
  • The clinical course was consistent with the known poor prognosis of pediatric RCM.
  • Two children died, and a third became symptomatic by age 3 years.

Implications:

  • This case highlights the potential genetic basis of restrictive cardiomyopathy combined with musculoskeletal issues.
  • Early diagnosis and genetic counseling are crucial for families with suspected inherited cardiac conditions.
  • Further research into the genetic underpinnings of RCM with extra-cardiac manifestations is warranted.

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