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  2. Jan 19, 2023 · The most common cause of sudden cardiac arrest is an irregular heart rhythm called ventricular fibrillation. Rapid, erratic heart signals cause the lower heart chambers to quiver uselessly instead of pumping blood. Certain heart conditions can make you more likely to have this type of heartbeat problem.

  3. May 19, 2022 · Dangerous arrhythmias starting in the ventricles of the heart cause cardiac arrest. Risk factors include coronary heart disease and genetic heart problems. Alcohol misuse, caffeine, and physical exertion may trigger a cardiac arrest.

  4. Dec 27, 2023 · Cardiac arrest happens because of an electrical issue that makes your heart stop beating. When your heart stops pumping blood, you become unconscious. Cardiac arrest can be fatal in minutes. This is why bystanders should call for help and start CPR immediately. A person’s chances of survival are best when they get help right away.

  5. Nov 10, 2023 · Causes of Cardiac Arrest. Cardiac arrest may be caused by almost any known heart condition. Most cardiac arrests occur when a diseased heart’s electrical system malfunctions. This malfunction causes an abnormal heart rhythm such as ventricular tachycardia or ventricular fibrillation.

  6. May 30, 2023 · Cardiac arrest has several causes, including: Cardiomyopathy, which happens when the heart muscle becomes enlarged or stiff, leading to abnormal contractions. Coronary artery disease, which restricts the flow of blood to the heart. Valvular heart disease. An arrhythmia, which is when the heart beats too slowly, too fast, or in an irregular way.

  7. However, there are three main causes of cardiac arrest: Arrhythmia and ventricular fibrillation: Arrhythmia occurs when electrical signals in the heart are the problem leading to an abnormal heartbeat. Ventricular fibrillation is a type of arrhythmia and is the most common cause of cardiac arrest.

  8. Nov 10, 2023 · Cardiac arrest may be caused by almost any known heart condition. Most cardiac arrests occur when a diseased heart’s electrical system malfunctions. This malfunction causes an abnormal heart rhythm such as ventricular tachycardia or ventricular fibrillation.

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