Summary: For patients with non-ischemic systolic heart failure (left ventricular ejection fraction ≤35%), not placing an implantable cardioverter–defibrillator (ICD) may be associated with the same long-term risk of mortality as having an ICD placed.

https://www.ncbi.nlm.nih.gov/m/pubmed/27571011/

Strength of Recommendation = B

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