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Prevention of Sudden Cardiac Death in Children and Young Adults
Aapo L Aro1,2, Sumeet S Chugh1
1Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA.
Insights
Sudden cardiac death (SCD) in young individuals is rare but devastating. Prevention strategies focus on identifying underlying conditions like cardiomyopathies and channelopathies, though screening methods face challenges.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Preventive Cardiology
Background:
- Sudden cardiac death (SCD) in individuals under 35 is a significant concern.
- Unlike older populations where coronary artery disease dominates, cardiomyopathies and electrical channelopathies are leading causes in the young.
- Cardiac arrest can be the initial presentation of an undiagnosed cardiac condition in younger individuals.
Purpose of the Study:
- To review current strategies for preventing sudden cardiac death (SCD) in children and young adults (under 35 years).
- To highlight the challenges and considerations in diagnosing and managing cardiac conditions that lead to SCD in this demographic.
Main Methods:
- Review of current literature and guidelines on SCD prevention in young populations.
- Analysis of etiologies of SCD in younger individuals, focusing on cardiomyopathies and channelopathies.
- Evaluation of screening approaches, including electrocardiographic screening in specific subpopulations like athletes.
Main Results:
- Cardiomyopathies and channelopathies are primary causes of SCD in young individuals.
- Electrocardiographic screening in subpopulations shows promise but faces limitations due to high false-positive rates and costs.
- Risk stratification is crucial for implementing preventive measures, including lifestyle changes, medical treatment, and implantable cardioverter-defibrillator (ICD) implantation.
Conclusions:
- Effective prevention of SCD in the young requires accurate identification of underlying cardiac pathologies.
- Balancing the benefits of lifelong ICD therapy with potential long-term complications and quality of life is essential.
- Further research into cost-effective and accurate screening methods is warranted.
Abstract:
In the present review, we summarize current approaches to the prevention of sudden cardiac death (SCD) in children and young adults, focusing on age less than 35 years. SCD in the young is rare, but devastating from the societal perspective. While coronary artery disease is the main etiology of SCD in the older age groups, conditions such as cardiomyopathies and electrical channelopathies are more likely to be found in the young. In the majority of younger cases, cardiac arrest can be the first recognized manifestation of the underlying cardiac pathology, although some have experienced cardiovascular symptoms prior to the SCD. Since identification of a cardiac disease is pivotal for implementation of appropriate preventive measures, measures such as electrocardiographic screening in subpopulations such as athletes have been proposed. However, these efforts are impeded by the large number of individuals needed to test in order to find one with cardiac disease, leading to significant rates of false positive findings and high costs. When a high-risk cardiac condition is identified in a young person, measures of lifestyle modification, appropriate medical treatment and ICD implantation in selected individuals based on risk stratification are warranted. Nevertheless, the benefits of lifelong ICD therapy need to be balanced with long-term complications and quality of life.
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