What Is Sudden Cardiac Death (SCD)?
Sudden cardiac death is an unexpected death due to cardiac causes occurring within 1 hour of symptom onset in a person in whom no previously life threatening heart condition was diagnosed. Typical SCD victim is an adult, collapsing without obvious reason during regular activity and dying in few minutes from a heart failure. Over 300,000 persons dye in US each year from SCD. More than half of all heart deaths are due to SCD. SCD has a peak at 45-75 years of age, children are rarely affected (1).
Most cases of SCD are related to ventricular fibrillation or other arrhythmias.
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