Heart failure happens when the heart is unable to pump enough blood to meet the body’s needs. It does not mean that the heart has stopped. Heart failure can cause blood and fluid to back up into the lungs and other issues. People with heart failure may experience trouble breathing, fatigue and swelling in the ankles, feet and legs.
Heart failure is commonly caused by coronary artery disease, high blood pressure and diabetes. Your doctor can diagnose heart failure using many tests including electrocardiography, nuclear stress test and echocardiography. Treatment depends on the underlying cause of your heart failure and can include medication or a heart transplant if needed.