Assessment of Peripheral Veins Doppler Ultrasound for Diagnosis of Acute Right Heart Failure in Suspicion or Follow-up of Pulmonary Hypertension

Patients undergoing a right heart catheterization for PH diagnosis or annual follow-up in the cardiological unit of the university hospital of Poitiers will be included. A venous Doppler ultrasound will be performed by a vascular physician, with experience in vascular ultrasound imaging, within 4 hours before the right heart catheterization. Morphological parameters of vena cava, and velocimetric parameters of femoral, jugular and supra-hepatic veins will be assessed in order to study their correlation with right auricular pressure value.