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Tiny Pacemakers Could Be Game Changers for Heart Patients

Tiny, new pacemakers are making headway around the world. One type, the Micra, is keeping 15,000 people’s hearts beating in 40 countries, according to manufacturer Medtronic. One of those people is Mary Lou Trejo, a senior citizen who lives in Ohio.  A healthy heart has its own pacemaker that establishes its rhythm, but people like Trejo need the help of an artificial device. Trejo comes from a family with a history of heart disease. Her heart skipped beats, and she could feel it...

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