ischemic heart failure means the heart is not pumping blood right and is weak because not enough oxygen can get to the heart muscles, ischemia means lack of oxygen.
congestive heart failure means the heart is again not pumping blood through it strongly enough and the fliuds in the blood "backup" into the lungs or stays in the heart chambers which causes the heart to pump weakly because there's "congestion' Both are a result of lack of oxygen causing problems Hope this helps
I don’t know
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