Thousands of people receive implantable cardioverter-defibrillators each year, but not everyone who receives the device really needs it, and some people would be better off pursuing other treatment avenues. Two studies showed that 13% of people who receive ICDs may not need them, at least not according to the strict criteria outlined in professional guidelines. Here is a summary of the most current national guidelines on who does, who might, and who doesn't need an implantable cardioverter-defibrillator (ICD).
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