Age

0–18

Sex

ALL

Healthy volunteers

Not accepted

Children and adolescents aged \<18 years at diagnosis
Diagnosed pulmonary hypertension (PH) according to the prevailing diagnostic criteria at the time of enrollment
Enrollment in the registry at participating centers
Provision of informed consent by patients and/or legal guardians
Availability for longitudinal follow-up

Inability to confirm PH diagnosis due to insufficient clinical or hemodynamic data
Refusal or inability to provide informed consent

Insights Into Pediatric Pulmonary Hypertension: A Real-World Registry of Epidemiology and Outcomes