[Sudden cardiac death in adults. Epidemiology].

Epidemiology studies indicates that in populations sudden death is a prominent and lethal feature of coronary heart disease. Estimations show that 20-25 per cent of cardiac mortality die suddenly. The temporal definitions of sudden death range within 1 hour of the acute onset of symptoms in a subject who has been well. The usual risk factors of coronary heart disease are also predictive of sudden death but family history is a independent factors.