Sudden Cardiac Death: A Systematic Review

Area of Science:

• Cardiology
• Preventive Medicine
• Genetics

Background:

• Sudden cardiac death (SCD) is a leading cause of cardiovascular fatalities, frequently due to ventricular tachyarrhythmias.
• Current prevention focuses on high-risk groups with devices like subcutaneous implanted cardioverter defibrillators (S-ICD), yet many SCDs occur in seemingly healthy individuals.
• Limited data exists on SCD risk factors compared to other cardiovascular diseases, necessitating broader primary prevention strategies.

Purpose of the Study:

• To review existing literature on sudden cardiac death risk factors.
• To highlight the need for enhanced primary prevention strategies for the general population.
• To identify key risk factors and comorbid conditions associated with SCD.

Main Methods:

• Systematic review of medical literature.
• Searched databases including PubMed/Medline, Cochrane Library, and Google Scholar.
• Included 13 publications meeting specific qualifying criteria.

Main Results:

• Male gender and family history of SCD are significant risk factors.
• Obstructive sleep apnea (OSA) is an important comorbid condition.
• Individuals with S-ICD and young athletes with a history of ventricular arrhythmia have a higher predisposition to SCD.

Conclusions:

• More research is needed to establish optimal approaches for managing identified SCD risk factors.
• Improved understanding of risk factors will aid in applying preventive and therapeutic medicine.
• Primary prevention strategies are essential for both at-risk populations and those who have experienced SCD.