Heart Failure is a serious condition in which your heart fails to pump blood sufficient enough to meet your body’s oxygen needs. It is also called as congestive cardiac failure, right side heart failure, left side heart failure or cor pulmonale. Heart Failure occurs when the heart cannot relax properly to fill in enough blood (right-sided heart failure) or cannot contract properly to pump out enough oxygen-rich blood (left-sided heart failure) or due to a combination of both problems (congestive heart failure).
Right-sided heart failure is a result of high blood pressure in pulmonary arteries (arteries taking blood from heart to lung) is called cor pulmonale.