In this prospective study, the investigators will implement a systematic assessment of adherence to diuretics in a cohort of patients with precapillary pulmonary hypertension. This study is designed to: * determine the overall adherence rates for diuretic regimen * determine the determinants of non-adherence to diuretics * assess the risk of PH worsening occurrence in the non-adhesion group
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Score of Girerd (French self-administered questionnaire about adherence medication) and level of medication possession ratio (MPR)
Timeframe: 2 weeks previous hospitalization