Cardiac Arrests Often Preceded By Fainting

Up to 45,000 sudden cardiac arrests occur each year in Canada, and less than five percent survive. In some of these cases, the event cannot be explained by the presence of underlying heart disease. In order to identify people at risk of these unexplained cardiac events, a newly published study examined the presence of certain warning symptoms that are present in people who have been resuscitated from a cardiac arrest. The research found that over a quarter of unexplained cardiac arrests occurred after the patient had an event of fainting, known as syncope...

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