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XLVI.i

XLVI - Pulmonary vasculopathy

Acute pulmonary hypertension

Last update 17/06/2026

De novo or superipmosed on a background of preexisting PAH. Range from mild to catastrophic and fatal. May result from acute pulmonary vasoconstriction, extensive microembolism, or rebound vasoconstriction upon brisk withdrawal of pulmonary vasodilator therapy. See also under acute pulmonary vasoconstriction VIL

Causative drugs

Frequency - Incidence

Incidence of respiratory adverse event(s) due to the specific drug as assessed by number of reported/published cases in the literature. Red digits in stars indicate: 0 = Very rare, questionable signal · 1 = < 10 cases · 2 = 10-50 cases · 3 = 50–100 cases · 4 = 100-200 cases · 5 = >200 cases