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- Dictionaryheart failure
noun
- 1. severe failure of the heart to function properly, especially as a cause of death: "her mother had died of heart failure"
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noun
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Heart failure (HF), also known as congestive heart failure (CHF), is a syndrome caused by an impairment in the heart's ability to fill with and pump blood. Although symptoms vary based on which side of the heart is affected, HF typically presents with shortness of breath, excessive fatigue, and bilateral leg swelling. The severity of the heart failure is mainly decided based on ejection fraction a... Wikipedia