Tricuspid Regurgitation

Tricuspid Regurgitation Severity

Assess tricuspid regurgitation severity using ACC/AHA 2020 integrated criteria: qualitative grade, vena contracta width, PISA EROA, regurgitant volume, hepatic vein flow, and CW Doppler contour. TR Vmax is used for PASP estimation only — it is not a TR severity signal.

ACC/AHA VHD 2020

Input

Enter available values — partial input is supported.

TR mechanism

TR severity parameters

Only these 6 parameters drive the primary TR grade. TR Vmax and right-heart data are supporting context only.

Qualitative grade

Severe ≥ 0.70 cm

Severe ≥ 0.40 cm²

Severe ≥ 45 mL/beat

Hepatic vein systolic flow

CW Doppler contour

For PASP estimation only — not a TR severity signal

TR Vmax is used for PASP estimation context only. It does not contribute to TR severity grade.

Severity assessment

Enter qualitative grade, vena contracta, EROA, regurgitant volume, hepatic vein flow, or CW Doppler to receive a TR severity assessment.

Learn the echo reasoning pathway

Review how valve severity, LV function, filling pressures, and intraoperative TEE findings connect in perioperative echo assessment.

Open Echo Education