What is Pulmonary Hypertension?

I particularly like the way the Cleveland Clinic describes what Pulmonary Hypertension is because they explain in detail what is happening in the disease process and why having this disease is so serious.

According to the Cleveland Clinic, "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. This abnormally high pressure strains the right ventricle of the heart, causing it to expand in size. Overworked and enlarged, the right ventricle gradually becomes weaker and loses its ability to pump enough blood to the lungs. This could lead to the development of right heart failure."

Cleveland Clinic, Diseases and Conditions, copyright 2011,
http://my.clevelandclinic.org/disorders/Pulmonary_Hypertension/hic_Pulmonary_Hypertension_Causes_Symptoms_Diagnosis_Treatment.aspx

Jennifer Richardson