A study published in the journal JAMA Internal Medicine showed that routine echocardiogram doesn't reduce the risk of heart attack, stroke, and death. Researchers tracked more than 6,700 people for 15 years and found no significant difference in mortality, heart attack and stroke rates between people who received and didn't receive echocardiograms. The findings support existing guidelines that only adults with symptoms of heart disease should get the test, researchers said.

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