Sudden Cardiac Death

Sudden Cardiac Death (SCD) is a sudden, unexpected death caused by loss of heart function (Cardiac Arrest). It is the largest cause of natural death in the U.S., causing about 325,000 adult deaths in the U.S. each year. SCD is responsible for half of all heart disease deaths.

Causes

SCD is usually caused by abnormalities in the heart. The most common cause of SCD is Coronary Heart Disease (CHD). Other causes include significant physical stress, major changes in blood pressure, lack of oxygen, and inherited disorders that affect heart rhythm.

Symptoms

Most people who experience SCD have no prior symptoms. However, some people may experience chest pain, shortness of breath, fainting, and heart palpitations.

Prevention

Prevention of SCD involves managing heart disease risk factors like high blood pressure, high cholesterol, and obesity. Regular exercise, a healthy diet, and not smoking can also reduce the risk of SCD.

Treatment

Treatment for SCD is immediate cardiopulmonary resuscitation (CPR) and, if an automated external defibrillator (AED) is available, an electric shock to the heart to restore a normal rhythm.

See also

• Cardiac Arrest
• Coronary Heart Disease
• Cardiopulmonary Resuscitation
• Automated External Defibrillator

Sudden Cardiac Death Resources
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