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 DCI Home: Lung Diseases: Pulmonary Hypertension: Other Names

      Pulmonary Hypertension
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Other Names for Pulmonary Hypertension

Group 1 pulmonary arterial hypertension (PAH) that occurs without a known cause is often called primary PAH or idiopathic PAH (IPAH).

Group 1 PAH that occurs with a known underlying disease or condition is often called associated PAH. For example, PAH that occurs in a patient who has scleroderma might be called "PAH occurring in association with scleroderma," or simply "scleroderma-associated PAH."

Groups 2–5 PH are sometimes called secondary PH.


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