How is Pulmonary Hypertension classified?
The current classification scheme divides PH into five distinct clinical groups:
Group 1: Pulmonary Arterial Hypertension
Group 2: Pulmonary Hypertension associated with left heart disease
Group 3: Pulmonary Hypertension associated with chronic hypoxia (e.g., Pulmonary Hypertension associated with ILD)
Group 4: Chronic thromboembolic-associated PH
Group 5: Pulmonary Hypertension with unclear or multifactorial mechanisms (e.g., sarcoidosis)
