
In pulmonary arterial hypertension (PAH), high blood pressure in the pulmonary arteries damages the lungs and heart. If left untreated, PAH quickly becomes life threatening. While no cure yet exists, new treatments are available that have significantly improved prognosis.
The pulmonary arteries carry blood from the right side of the heart to the lungs. In the lungs, the blood picks up oxygen to carry to the rest of the body. Just as high blood pressure in the rest of the body damages blood vessels and organs, the high pressure of PAH damages the pulmonary arteries and the tissues of the heart and lungs.
There are two major types of PAH. Secondary PAH is caused by other diseases. Idiopathic PAH (IPAH), a rare form of PAH, occurs on its own.
Symptoms of PAH include shortness of breath with minimal exertion, fatigue, chest pain, dizzy spells, fainting, swelling of the ankles, feet, and legs, and a racing pulse. If you experience any of these symptoms, see your health care professional immediately for an accurate diagnosis and treatment to relieve your symptoms.
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