PAH inherited idiopathic (BMPR2 mutation), toxics (drugs), in association with VIH, maladie de système (portal hypertension, hemolytic anemia, sclerodermia, connective tissue disorders).
PH caused by left-sided heart disease.
PH caused by lung disease : OCPD, interstitial pulmonary disease, sleep apnea syndrome, chronic altitude exposition, hypoventilation, other pulmonary disease and mixed syndrome.
PH caused by chronic blood clots.
PH associated with other conditions that have unclear reasons why the pulmonary hypertension occurs.
