In this health video learn about a new treadmill test may be able to determine whether you're at risk for sudden cardiac death.
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Jennifer Matthews: Ellazer Holland walks with a purpose. This treadmill could save his life. Ellazer Holland: They found out I was having problem with my heart, so they said I had to come over and see Dr. Bailey. Jennifer Matthews: Ellazer is taking a new test called T-wave Alternans. While he walks a special computer picks up microscopic changes in his heartbeat that could be life-threatening. Dr. Russ Bailey: These changes are usually so subtle that on a standard EKG or a standard treadmill test you or I cannot see that. Jennifer Matthews: Though microscopic, the changes put Ellazer at risk for sudden death. A condition that kills more than 300,000 people a year. Dr. Russ Bailey says the new test is one of the best tools for heading off sudden death in patients who had a prior heart-attack. Wealth problems or weakness of the heart. Dr. Russ Bailey: Other means of assessing those patients have not been very good at identifying where that they might at risk. This tool certainly shows promise. Jennifer Matthews: Ellazer needed an Implantable Defibrillator, a device that could save his life if it heart stops. Ellazer Holland: It won't let it get too low and too high, it let me know what's going on, so I feel real good about it. Jennifer Matthews: A life-saving tool that keeps him looking forward to his walks. This is Jennifer Matthews reporting.

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