Pulmonary hypertension is a type of high blood pressure affecting the arteries in the lungs and the right side of the heart. Tiny arteries in the lungs, called pulmonary arteries, and capillaries become narrowed blocked or destroyed. This makes it harder for blood to flow through the lungs. The pressure builds in the lower right chamber of the heart, causing the heart to work harder to pump blood through the lungs. This eventually can cause the heart muscle to weaken and eventually fail.
Symptoms can include shortness of breath during routine activity, tiredness, chest pain, and a racing heartbeat.
Pulmonary hypertension is a serious illness that becomes progressively worse. There is no cure for pulmonary hypertension; however, treatments are available that can help lessen symptoms and improve quality of life.