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Tricuspid Prosthesis:

Stenosis Regurgitation

MILD
MODERATE
SEVERE
Regurgitant Volume
< 30 ml/beat
30 - 44 ml/beat
≥ 45 ml/beat
EROA
< 0.20 cm
0.20 - 0.39 cm
≥ 0.40 cm
Jet Area (Central Jet)
< 5 cm2
5 – 10 cm2
> 10 cm2
Vena Contracta Width
N/A
< 0.7 cm
> 0.7 cm
Jet Contour
Parabolic
Variable
Early-peaking Triangle
Hepatic Vein Flow
Normal or Blunted Systolic-flow
Blunted Systolic-flow
Holo­systolic Reversal
RA / RV / IVC
Normal
Dilated
Markedly Dilated

Calculate EROA

Native Values