Background: Pulmonary arterial hypertension (PAH) is a severe and rare disease with an important genetic background. The influence of genetic testing in the clinical classification of pediatric PAH is not well known and genetics could influence management and prognosis.
Objectives: The aim of this work was to identify the molecular fingerprint of PH children in the (REHIPED), and to investigate if genetics could have an impact in clinical reclassification and prognosis.