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1 in 5 heart defibrillator implants questionable
USA Today

One in five heart defibrillators may be implanted for questionable reasons without solid evidence that the devices will help, according to a first-of-its-kind analysis. Implanted defibrillators shock the heart back into a normal rhythm when it starts beating irregularly. They can prevent sudden death in people with advanced heart failure, but researchers haven’t found a benefit for other patients. Patients who’ve had a recent heart attack or recent bypass surgery aren’t good candidates for defibrillators, for example. Guidelines don’t recommend them for people newly diagnosed with heart failure either and those so sick that they have very limited life expectancies won’t be helped.

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