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Cardiac Arrest Definition & Overview


Cardiac arrest refers to the loss of heart function. In many cases, it is an expected outcome to a serious illness. Cardiac arrest often results in death.

  • Sudden cardiac arrest refers to the heart's unexpected stopping of activity due to a potentially reversible cause. Brain death occurs within a few minutes if the situation is not reversed.
  • Sudden cardiac death refers to an unexpected, heart-related death within one hour from the start of symptoms.

Electrical System of the Heart

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Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2023 EBSCO Publishing All rights reserved.

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