7 Common Causes of Pulmonary Arterial Hypertension

7 Common Causes of Pulmonary Arterial Hypertension

Medically reviewed by Christopher Lee, MDPulmonary arterial hypertension (PAH) is a type of pulmonary hypertension that causes high blood pressure in the small arteries of the lungs. It is a serious condition that can impair blood flow, causing symptoms like shortness of breath, chest pain, and light-headedness that affect daily life.In some cases, the cause of PAH is unclear, or it is caused by heart or lung diseases or by certain drugs and inf…