Heart Failure Heart Failure What's The Difference Between Heart Disease & Heart Failure In Dogs?

What's the difference between heart disease & heart failure in dogs? - heart failure heart failure

My knight has a heart condition (I think it is MVD). She has been on the shelves for several months for this purpose. The package says they are for the treatment of heart failure in dogs. I used to think that heart failure occurs when the heart is no longer just working and the dog died, but obviously not the case. What is really heart failure? Thank you xx