Severe Tricuspid Regurgitation Shows Significant Impact in the Relationship Among Peak Systolic Tricuspid Annular Velocity, Tricuspid Annular Plane Systolic Excursion, and Right Ventricular Ejection Fraction

Severe TR has a significant impact on the relationship between RV-Sm and RVEF and between TAPSE and RVEF. TAPSE and RV-Sm in patients with severe TR show poor correlation to RVEF. When applying Doppler tissue method or TAPSE to assess RV function, severe TR is a significantly confounding factor.