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Genetic etiology and evaluation of sudden cardiac death

Elena Dolmatova1, Saagar Mahida, Patrick T Ellinor

  • 1Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA, USA.

Current Cardiology Reports
|July 2, 2013
PubMed

Insights

Inherited arrhythmia syndromes cause sudden cardiac death (SCD). Genetic testing and family screening improve risk assessment and management for these complex conditions.

Area of Science:

  • Cardiovascular Genetics
  • Genomics
  • Inherited Arrhythmia Syndromes

Background:

  • Inherited syndromes are a significant cause of ventricular arrhythmias and sudden cardiac death (SCD).
  • The variable natural history and limited risk stratification of these conditions complicate patient management.
  • Current management involves risk assessment, lifestyle changes, interventions, and family screening.

Purpose of the Study:

  • To review the etiologies of sudden cardiac death (SCD) syndromes.
  • To discuss evaluation strategies for patients at risk of SCD.
  • To highlight the role of genetic testing and family screening in managing inherited arrhythmia syndromes.

Main Methods:

  • Review of current literature on inherited arrhythmia syndromes and sudden cardiac death.
  • Discussion of the impact of high-throughput sequencing and genomic advances.
  • Focus on genetic testing and cascade screening strategies.

Main Results:

  • High-throughput sequencing enables routine genetic testing for suspected inherited arrhythmia conditions.
  • Cascade screening is effective for relatives of mutation carriers.
  • Genomic advances introduce complexity in screening and data interpretation.

Conclusions:

  • Specialized centers with cardiovascular genetics expertise are crucial for managing individuals with inherited arrhythmia syndromes.
  • Genetic testing and family screening are essential components of risk stratification and management.
  • Further research is needed to refine risk assessment and management strategies for these complex genetic disorders.

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