Inclusion
Patients with a clinical diagnosis of:
- Idiopathic pulmonary arterial hypertension (IPAH)
- Heritable pulmonary arterial hypertension (HPAH)
- PAH associated with anorexigen exposure
Exclusion
Patients with a known underlying cause of pulmonary arterial hypertension, including:
- chronic thromboembolic disease
- congenital heart disease
- connective tissue disease
- HIV
- liver cirrhosis
- left heart disease
- chronic lung disease