Assertion: heart failure | /r/Causes | degree
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Source sentences:
text: Heart failure is just a very very general term to denote impairment of the heart the beginning of the heart not functioning properly not pushing enough blood around the body, brain everywhere, causing breathlessness, causing a degree of swelling very often in the peripheries, that's what heart failure is, a heart attack is a sudden severe event - one off, heart failure is a gradually progressive condition.