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Hypertrophic cardiomyopathy in children

Jeffrey P Moak1, Juan Pablo Kaski

  • 1Division of Cardiology, Children's National Medical Center, 111 Michigan Ave, NW, Washington, DC 20010, USA. jmoak@childrensnational.org

Heart (British Cardiac Society)
|May 18, 2012
PubMed

Insights

Hypertrophic cardiomyopathy (HCM) is a common heart muscle disease in children, often caused by genetic mutations. Early diagnosis and family screening are crucial for managing this condition and preventing sudden cardiac death.

Area of Science:

  • Pediatric Cardiology
  • Genetics
  • Cardiovascular Medicine

Background:

  • Hypertrophic cardiomyopathy (HCM) is the second most frequent heart muscle disease in children and adolescents.
  • It is a primary cause of sudden cardiac death in young athletes.
  • The causes of pediatric HCM are diverse, including metabolic disorders, neuromuscular conditions, and genetic mutations in sarcomere protein genes.

Purpose of the Study:

  • To summarize the current understanding of hypertrophic cardiomyopathy in the pediatric population.
  • To highlight the heterogeneous etiology and diagnostic approaches for pediatric HCM.
  • To emphasize the importance of risk stratification and family screening in managing pediatric HCM.

Main Methods:

  • Review of existing literature on pediatric hypertrophic cardiomyopathy.
  • Analysis of etiological factors, clinical presentation, and diagnostic strategies.
  • Discussion of risk stratification challenges and management recommendations.

Main Results:

  • Pediatric HCM has varied causes, with genetic mutations being the most common for idiopathic cases.
  • Clinical presentation differs based on etiology, with metabolic/syndromic cases often appearing in infancy and neuromuscular cases in adolescence.
  • Diagnosis in infants often follows murmur or heart failure evaluation, while older children present with symptoms or are identified through family screening.

Conclusions:

  • Genetic factors are predominant in childhood HCM, necessitating genetic counseling and testing.
  • Early diagnosis and comprehensive family screening are essential for effective management and risk reduction.
  • Risk stratification in pediatric HCM remains a significant clinical challenge requiring further research.

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