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[Sudden Cardiac Death in Patients With Hypertrophic Cardiomyopathy]

N Vatutin1, G G Taradin1, M S Maron1

  • 11Donetsk national medical university named after M. Gorky, Donetsk, Ukraine; 2Tuft University School of Medicine, Hypertrophic Cardiomyopathy Center, Tufts Medical Center, Boston, Massachusetts, USA.

Kardiologiia
|March 16, 2017
PubMed

Insights

Sudden cardiac death (SCD) in hypertrophic cardiomyopathy (HCM) affects young individuals and athletes. Risk stratification and implantable cardioverter-defibrillators (ICD) are key to preventing SCD in HCM patients.

Area of Science:

  • Cardiology
  • Sports Medicine
  • Genetics

Background:

  • Hypertrophic cardiomyopathy (HCM) is a primary cause of sudden cardiac death (SCD), particularly in young individuals and athletes.
  • Understanding the prevalence and risk factors for SCD in HCM is crucial for effective prevention strategies.

Purpose of the Study:

  • To review the current literature on sudden cardiac death (SCD) in hypertrophic cardiomyopathy (HCM).
  • To discuss the prevalence, risk factors, and pathophysiological mechanisms of SCD in HCM.
  • To evaluate risk stratification methods and the role of implantable cardioverter-defibrillators (ICD) in SCD prevention.

Main Methods:

  • Comprehensive literature review of studies on sudden cardiac death (SCD) in hypertrophic cardiomyopathy (HCM).
  • Analysis of prevalence, demographic factors (age, sex), and exercise-induced risk.
  • Evaluation of arrhythmogenic substrates and ventricular tachyarrhythmia.
  • Review of risk stratification criteria and clinical trials on implantable cardioverter-defibrillators (ICD).

Main Results:

  • Sudden cardiac death (SCD) prevalence varies in young individuals and athletes with hypertrophic cardiomyopathy (HCM).
  • Factors like age, sex, and myocardial response to exercise influence SCD risk.
  • Implantable cardioverter-defibrillators (ICD) show efficacy in primary and secondary SCD prevention in HCM patients, though complication rates must be considered.

Conclusions:

  • Accurate risk stratification is essential for identifying individuals with hypertrophic cardiomyopathy (HCM) at high risk of sudden cardiac death (SCD).
  • Implantable cardioverter-defibrillators (ICD) represent a vital therapeutic option for SCD prevention in selected HCM patients.
  • Further research is needed to optimize ICD implantation criteria and minimize complications.

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