What is Heart Failure?
When the heart does not circulate blood normally, the kidneys receive less blood and filter less fluid out of the circulation into the urine. The extra fluid in the circulation builds up in the lungs, the liver, around the eyes, and sometimes in the legs. This is called fluid “congestion” and for this reason doctors call this “congestive heart failure”.
Heart failure is caused by damage to the heart muscle such as scar tissues from after a heart attack, years of slow damage from high blood pressure or clogged arteries, damage to a heart valve, diabetes, or a mechanical defect of the heart muscle that can be present from birth or caused by infection.