Harvard Heart Letter

When to seek genetic testing for heart disease

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Genetic testing is family testing for several heart diseases.

If genetic heart disease strikes a family, testing offers options.

Many kinds of heart disease run in families. Most of these, such as coronary artery disease, are influenced by multiple genes that interact in complicated ways. Thus, genetic testing has not yet proved particularly useful for these conditions. Heart problems caused by only one or a few genes are a different story.

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