Efficacy and Safety of Triple-targeted Drug Therapy in Treatment-naive Patients With Non-low-risk PAH: A Real-world, Multicenter Study

Inclusion Criteria: * Consent and sign the informed consent form * Non-low-risk PAH treatment-naive patients Exclusion Criteria: * Positive acute vascular response test for idiopathic/hereditary/drug-related arterial pulmonary hypertension * Pulmonary veno-occlusive disease/pulmonary capillary hemangiomatosis (PVOD/PCH) with arterial pulmonary * Pregnant or lactating women * Suffering from mental illness or cognitive impairment * PAH patients with concurrent malignant tumors * Patients with moderate to severe hepatic impairment, renal impairment, and severe anemia * Currently participating in other interventional clinical studies * Key clinical data is incomplete, or the investigator considers that the patient has other factors that make them unsuitable for this study.