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Published on Sep 7, 2009
In the United states, an estimated 300,000 people die every year of sudden cardiac arrest although internationally, it's unclear how many are at risk. Many patients have a device called a defibrillator implanted that delivers a shock to restart the heart. Now, some doctors are prescribing the device in a vest worn outside the body. And the National Heart, Lung and Blood Institute is testing the effectiveness of "The LifeVest." Thousands wear the device and the Pittsburgh-based manufacturer says it expects the number of patients using the technology to double this year. Steve Mort reports.