what is pulmonary hypertension
Pulmonary hypertension is a rare lung disorder in which the arteries that carry blood from the heart to the lungs become narrowed, making it difficult for blood to flow through the vessels.As a result, the blood pressure in these arteries -- called pulmonary arteries -- rises far above normal levels.he first symptom of pulmonary hypertension is usually shortness of breath with everyday activities, such as climbing stairs. Fatigue, dizziness, and fainting spells also can be symptoms. Swelling in the ankles, abdomen or legs, bluish lips and skin, and chest pain may occur as strain on the heart increases.