In this prospective study, the investigators will implement a systematic screening program and 3-year follow-up in a cohort of asymptomatic BMPR2 mutation carriers. This study is designed to: * determine predictive factors (biological, functional, radiological and hemodynamic) of development of PAH * monitor these subjects' clinical, functional, biological, echocardiographic and hemodynamic characteristics * assess the risk of occurrence of PAH * screen patients with PAH at an early stage of disease and offer them an early management * constitute a collection of biological samples (0, 12, 24 months follow-up) of asymptomatic BMPR2 mutation carriers.
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predictive factors of the occurrence of PAH
Timeframe: 2 years