Any disease of the heart if severe enough, can cause heart failure. It could be a disease of the heart muscle or heart valve. Heart valves can be leaky or obstructed. Heart muscle can be damaged due to lack of blood supply, inflammation or infections. Heart muscles can be infiltrated by disease processes like storage diseases or amyloid.
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My dad Is 74 years old. Two months ago he was hospitalised with heart failure. Then we discovered he has 20% heart function. He also has emphysema and his kidneys are now in failure. Urea count is currently 70. And he has bleeding in the stomach. And his blood pressure is low. He is cutrently in high care at hospital. What are his chances of getting the kidneys to function again? Should they carry on treating him or should we bring my dad home and let nature take its course?