diagnostic right heart catheterization (RHC) to identify patients with pulmonary arterial
hypertension (PAH) who respond to calcium channel blockers. Our purpose was to
investigate the prognostic importance of follow-up vasoreactivity test after treatment.
Methods We retrospectively analyzed 36 PAH patients (mean age, 47 years; 61% treatment-
naïve), who underwent diagnostic and follow-up RHC and vasoreactivity tests at our center …