Related Experiment Video
Updated: Oct 1, 2025
07:15
Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
Published on: January 16, 2019
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Racial Disparities in Ion Channelopathies and Inherited Cardiovascular Diseases Associated With Sudden Cardiac Death
Mohamed Chahine1,2, John M Fontaine3,4, Mohamed Boutjdir5,6,7
1Department of Medicine Faculty of Medicine Université Laval Quebec City QC Canada.
Journal of the American Heart Association
|March 4, 2022
Summary
African Americans experience higher cardiovascular disease (CVD) mortality and sudden cardiac death due to genetic factors and treatment disparities. Addressing these requires diverse clinical trials and improved access to genetic testing and devices.
Area of Science:
- Cardiovascular Medicine
- Genetics
- Health Disparities
Background:
- Cardiovascular disease (CVD) remains a leading cause of death globally, with cardiac arrhythmias contributing significantly.
- Despite advances, significant racial and ethnic disparities persist in CVD morbidity and mortality.
- African American/Black subjects exhibit disproportionately higher rates of CVD, including sudden cardiac death.
Purpose of the Study:
- To review cardiac channelopathies and inherited disorders linked to sudden cardiac death in African Americans.
- To explore the role of epigenetics in CVD phenotypic manifestations within this population.
- To highlight disparities in treatment, device use, and knowledge gaps in CVD management for African Americans.
Main Methods:
- Literature review of available scientific data.
- Focus on inherited cardiac disorders and sudden cardiac death in African American/Black subjects.
- Analysis of epigenetic influences on CVD phenotypes and treatment disparities.
Main Results:
- African Americans face higher CVD mortality and out-of-hospital cardiac arrest rates.
- Underrepresentation in clinical trials, limited genetic testing, and underuse of cardiac devices are prevalent.
- Existing disparities in treatment and outcomes are evident.
Conclusions:
- Early identification of genetic variants is crucial for preventive strategies in African Americans.
- Increased diversity in clinical trials and guideline-directed care are essential.
- Addressing knowledge gaps and improving access to advanced cardiovascular care are critical for reducing CVD disparities.
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