Why it matters
The finding may help researchers investigate why some people with heart failure die suddenly despite normal recorded heart rhythms. It does not establish a new prevention or treatment approach for patients.
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A Uniformed Services University-led team found that more than half of the sudden deaths it studied had normal electrical signaling recorded at the time of death. The findings come from postmortem recordings from implanted defibrillators in a heart-failure trial; the article does not report a change in clinical practice.
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The finding may help researchers investigate why some people with heart failure die suddenly despite normal recorded heart rhythms. It does not establish a new prevention or treatment approach for patients.