As a result, these patients have ‘Reduced Effort Tolerance’ (RET), which means that they have shortness of breath. In his video, Dr Hoffe explained that this is because the blood vessels in their lungs are now clogged up. This forces the heart to work harder to keep up against a greater resistance to get blood through to the lungs
This is known as pulmonary artery hypertension – high blood pressure in the lungs because blood cannot effectively get through. Those who have this condition often die of heart failure within a few short years.