Ratio between right ventricular longitudinal strain and pulmonary arterial systolic pressure: A novel prognostic parameter in patients with severe tricuspid regurgitation.

Background: In terms of pathophysiology, tricuspid regurgitation (TR), right ventricular function and pulmonary artery pressure are linked to each other. Our aim was to analyze whether the echocardiography-derived right ventricular free wall longitudinal strain/pulmonary artery systolic pressures (RVFWLS/PASP) ratio can improve risk stratification in patients with severe tricuspid regurgitation (TR).

Methods: In this single-center retrospective study, 250 consecutive patients with severe TR were enrolled from December 2015 to December 2018.