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Cardiovascular genomics and sudden cardiac death in the young
Julia Isbister1, Christopher Semsarian2
1BA, MBBS, Cardiology trainee, Department of Cardiology, Prince of Wales Hospital, Sydney, NSW; Prince of Wales Clinical School, University of New South Wales, Sydney, NSW.
Insights
Sudden cardiac death (SCD) in the young is often caused by genetic disorders. Family screening and genetic testing help identify at-risk relatives, enabling preventive strategies to reduce further SCD events.
Area of Science:
- Cardiovascular Genetics
- Pediatric Cardiology
Background:
- Sudden cardiac death (SCD) in young individuals is a rare but devastating outcome of inherited cardiovascular conditions.
- Management of cardiac arrest survivors and families impacted by SCD focuses on preventing future events through systematic family screening.
Purpose of the Study:
- To review the genetic underpinnings of SCD in the young.
- To outline the clinical management strategies for families affected by SCD.
Main Methods:
- Review of current literature on genetic cardiovascular disorders.
- Discussion of multidisciplinary clinical assessment protocols.
- Overview of advancements in genetic testing technologies.
Main Results:
- Inherited cardiomyopathies and primary arrhythmia syndromes are key genetic causes of SCD in youth.
- Significant progress in understanding genetic mechanisms and diagnostic capabilities over the last three decades.
- Family screening facilitates early detection and intervention in at-risk individuals.
Conclusions:
- Genetic testing and comprehensive clinical evaluation are crucial for identifying individuals at risk for SCD.
- Preventive strategies, guided by genetic screening, can significantly reduce SCD incidence in families.
- Multidisciplinary care is essential for managing families affected by genetic causes of SCD.
Background:
Sudden cardiac death (SCD) in the young is a rare but tragic consequence of a number of genetic cardiovascular disorders. The care of survivors of cardiac arrest and families affected by SCD seeks to prevent further SCD events through family screening.
Objective:
The aim of this article is to review the genetic basis of SCD in the young and outline the clinical aspects of caring for families affected by SCD.
Discussion:
Inherited cardiomyopathies and primary arrhythmia syndromes are important causes of SCD in young people. Over the past 30 years, there has been an explosion of knowledge regarding the underlying genetic mechanisms of these disorders and dramatic advances in genetic testing technologies. Family screening with thorough multidisciplinary clinical assessment and genetic testing allows for the initiation of preventive strategies in high-risk relatives and ultimately a reduction in SCD events.
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