Sudden death is a sudden and natural death. The main cause of sudden death is cardiac arrest. Although there are likely to regain the patient by the cardiopulmonary resuscitation at times.
It is estimated that 12% of natural deaths are sudden deaths. In patients with ischemic heart disease, sudden death is the most common form of death. Among infants and adults over 45 years there are more cases of MSC. It is also more common in men than in women.
Popularly it is believed that there is a relationship between physical activity and sudden death. But the overall impact is small. To minimize the risk, it is recommended that a preliminary medical examination to sports, especially before a competition.
Some drugs, such as diuretics or antiarrhythmics, can cause arrhythmia and so sudden death. Drugs, especially cocaine, also favors this unexpected death.