Acute Decompensation of Pulmonary Hypertension

It is planned to include 150 patients over a two-year period. The primary endpoint is a composite endpoint including death, circulatory assistance or emergency transplantation within 90 days following admission to intensive care unit. Patients will be treated according to the usual practice. A biobank will be created from blood samples taken at admission, days 3 and days 7. Prognostic value of pre-selected biomarkers will be analyzed and a proteomic analysis will be performed in order to identify new biomarkers. The prognostic value of these new biological parameters will be compared to the usual monitoring parameters that will be collected during follow-up (clinical, echocardiographic and haemodynamic parameters). In a second step, it will establish, using a dynamic model, the best combinations of parameters allowing to best assessment of prognosis of patients suffering from PH and hospitalized for acute right ventricular failure.