Magnets Guide Hearts Back Into Rhythm

April 16, 2010 12:00:00 AM PDT
It's one of the most common heart problems -- 2.2 million Americans have an irregular heartbeat, or atrial fibrillation. If left untreated, it puts people at an increased risk of blood clots and stroke. Doctors are now using a new piece of machinery to help these hearts and using magnets to guide them into hard-to-reach places.

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