What is the definition or description of: right sided heart failure?

Right heart failure : If the right side of the heart can not keep up with the demand for blood pumping through the lungs, we call that right heart failure. Typical symptoms might include swelling in the feet or ankles, and in more severe cases abdominal discomfort or abdominal swelling. The most common cause of RHF is Left HF. These are serious conditions and require expert management including several meds.