Phenotyping of the Out-of-proportion Pulmonary Hypertension

Hemodynamic evaluation was performed in the supine position. RHC was performed using the modified Seldinger technique with an 8F sheath inserted in the jugular, basilic or cephalic vein . The Swan-Ganz catheter was a 7F, two-lumen, fluid filled, and pressure-measuring tipped catheter (Corodyn TD; Braun Medical, Bethlehem, PA, USA). The zero-level reference was determined at midthoracic line.(9)