SUDDEN CARDIAC DEATH
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medical studies
presentation
date published 28/04/2008
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Half of all cardiac deaths are sudden, accounting for approximately 300,000 deaths per year in the United States. SCD is death due to instantaneous, unanticipated circulatory collapse within 1 hour of initial symptoms and is often, but not always, due to a cardiac arrhythmia. More than 70% of all sudden natural deaths have a cardiac cause, and 80% of these are attributable to coronary artery disease. Approximately 70% of SCDs occur in men. Compared with routine activities, vigorous exercise increases the immediate risk of SCD 17-fold.

