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Updated: Oct 19, 2025

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Hypertrophic cardiomyopathy in children
Shuiyun Wang1, Changsheng Zhu1
1Department of Cardiovascular Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, 571193Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Insights
Hypertrophic cardiomyopathy (HCM) in young people is a leading cause of sudden cardiac death (SCD). Surgical treatment and implantable cardioverter-defibrillators (ICDs) offer effective strategies for managing pediatric HCM and preventing SCD.
Area of Science:
- Cardiology
- Pediatric Medicine
- Sudden Cardiac Death Research
Background:
- Hypertrophic cardiomyopathy (HCM) is the most frequent cause of sudden cardiac death (SCD) in young individuals.
- The causes and prognosis of pediatric HCM vary significantly based on presentation age and etiology.
- Obstructive HCM in children presents complex challenges, yet surgical interventions can yield favorable outcomes.
Purpose of the Study:
- To review the diverse etiologies and prognostic factors influencing pediatric hypertrophic cardiomyopathy.
- To evaluate the efficacy of surgical treatment for obstructive HCM in carefully selected pediatric patients.
- To discuss the role of implantable cardioverter-defibrillators (ICDs) in preventing SCD in pediatric HCM patients.
Main Methods:
- Literature review of pediatric hypertrophic cardiomyopathy cases.
- Analysis of outcomes for surgical interventions in obstructive HCM.
- Assessment of current strategies for sudden cardiac death prevention using ICDs.
Main Results:
- Surgical treatment in experienced centers provides favorable outcomes for selected pediatric obstructive HCM patients.
- Implantable cardioverter-defibrillators (ICDs) are the most effective method for preventing sudden cardiac death.
- A novel pediatric SCD risk prediction model shows promise for identifying patients who would benefit most from ICD implantation.
Conclusions:
- Pediatric hypertrophic cardiomyopathy requires individualized management strategies based on etiology and presentation.
- Surgical intervention and ICDs are crucial for improving outcomes and preventing sudden cardiac death in young patients with HCM.
- Further refinement of pediatric SCD risk prediction models is needed to optimize ICD implantation decisions.
Abstract:
Hypertrophic cardiomyopathy (HCM) characterized by asymmetric ventricular septal hypertrophy, is the commonest cause of sudden cardiac death (SCD) in the young. The underlying etiology of HCM in the childhood and adolescent patients is diverse. Moreover, the prognosis of pediatric HCM depends on the age of presentation and etiology. Despite the complexity of children with obstructive HCM, surgical treatment results in a favorable outcome for carefully selected patients in experienced tertiary referral center in contemporary era. Implantable cardioverter-defibrillator (ICD) remains the most effective and reliable treatment to prevent SCD. New pediatric SCD risk prediction model, which has good discrimination and calibration and can distinguish patients who are most benefit from an ICD implantation, is expected to be further refined in the future.
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