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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Sudden death related cardiomyopathies - Hypertrophic cardiomyopathy
Zackary D Goff1, Hugh Calkins2
1Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America.
Insights
Hypertrophic cardiomyopathy (HCM) is an inherited heart condition. This review focuses on preventing sudden cardiac death (SCD) in HCM patients and compares guidelines for implantable cardioverter-defibrillator (ICD) use.
Area of Science:
- Cardiology
- Genetics
- Preventive Medicine
Background:
- Hypertrophic cardiomyopathy (HCM) is an inherited cardiac condition.
- Most individuals with HCM have mild symptoms but face risks of ventricular arrhythmias and sudden cardiac death (SCD).
- Implantable cardioverter-defibrillators (ICDs) have improved HCM prognosis, reducing mortality rates.
Purpose of the Study:
- To review key concepts of hypertrophic cardiomyopathy (HCM).
- To emphasize strategies for preventing sudden cardiac death (SCD) in HCM patients.
- To summarize and compare current guideline recommendations for ICD implantation in HCM.
Main Methods:
- Literature review of hypertrophic cardiomyopathy (HCM).
- Analysis of sudden cardiac death (SCD) risk stratification models.
- Comparative review of current international guidelines for ICD implantation.
Main Results:
- HCM is a genetic disorder with variable symptoms.
- SCD remains a significant risk, necessitating risk stratification.
- Guidelines for ICD implantation in HCM have evolved to balance prevention and necessity.
Conclusions:
- HCM management requires careful consideration of SCD risk.
- ICD implantation is crucial for preventing SCD in high-risk HCM patients.
- Ongoing evaluation of risk stratification models and guidelines is essential for optimal HCM care.
Abstract:
Hypertrophic cardiomyopathy (HCM) is a form of inherited cardiomyopathy. Most individuals with HCM experience minimal symptoms throughout their lifetime. However, those with HCM are at risk of ventricular arrhythmias and sudden cardiac death (SCD), the most feared complication of HCM. Implantable cardioverter defibrillator (ICD) implantation has played a large role in transforming this disease from one with an ominous prognosis to one with mortality rates that are on par with the general public. Since the early 2000s, balance between SCD prevention and unnecessary ICD placement has been sought, this is reflected in the evolution of SCD risk stratification models for patients with HCM. This review discusses key concepts pertaining to HCM, with emphasis on prevention of SCD, and summarizes and compares the recommendations for ICD implantation in current guidelines.
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