Sudden cardiac arrests preceded by warning signs, say scientists

November 20, 2013 12:51 PM

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Sudden cardiac arrests preceded by warning signs, say scientists

In a study of middle-age men in Portland, Oregon, more than half had warning signs up to a month before their hearts stopped suddenly, researchers found.

Cardiac arrest occurs when the heart stops due to a failure in its electrical system. Patients can sometimes survive if they receive cardiopulmonary resuscitation (CPR) immediately and a defibrillator is used quickly to shock the heart into a normal rhythm.

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