Abstract
Pulmonary arterial hypertension (PAH) is a subtype of pulmonary hypertension, which primarily affects thearteries in the lungs (pulmonary arteries) and the right side of the heart. This vascular disorder is characterizedby increased pulmonary vascular resistance and pulmonary vascular remodeling leading to right ventricular failureand death. In general, the pulmonary vascular resistance i…