AIRDROP: Can we Improve Adherence to Inhaled Treatment for Pulmonary Arterial Hypertension?

Inclusion Criteria

• •"Adult patients aged ≥ 18 years, treated at the referral center for PH management at the Heart Institute of the University of São Paulo Medical School, with an invasive confirmed diagnosis of PAH (mean pulmonary arterial pressure \[mPAP\] greater than 20 mmHg at rest, pulmonary vascular resistance \[PVR\] equal to or greater than 2 Wood units, and pulmonary capillary wedge pressure \[PCWP\] equal to or less than 15 mmHg), and who have been using Iloprost.