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What is sudden cardiac arrest?

Sudden cardiac arrest (SCA) happens when the heart’s electrical system, which controls heart rate and rhythm, malfunctions. The heart suddenly stops beating, and blood can no longer reach the brain and other vital organs.

SCA is one of the leading causes of death in the United States.

Sudden cardiac arrest occurs when the heart suddenly stops beating normally because of abnormal electrical activity of the heart. Sudden cardiac arrest can happen to anyone, anytime without warning but usually occurs in adults.

Sudden cardiac arrest happens when the heart stops pumping like it's supposed to, and there's no blood flow to vital organs.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.