Parameter |
Mild |
Moderate |
Severe |
VARC-2 |
|
|
|
Semi-quantitative parameters* |
|
|
|
Diastolic flow reversal in the descending aorta by pulsed wave |
Absent or brief early diastolic |
Intermediate |
Prominent, holodiastolic |
Circumferential extent of PVR (%) |
<10% |
10-29% |
≥30% |
Quantitative parameters* |
|
|
|
Regurgitant volume (ml/beat) |
<30 ml |
30–59 ml |
≥60 ml |
Regurgitant fraction (%) |
<30% |
30–50% |
≥50% |
EROA (cm2) |
<0.10 cm2 |
0.1-0.29 cm2 |
≥0.30 cm2 |
*Adapted from the Valve Academic Research Consortium-2 [16].
EROA: Effective regurgitant orifice area; CW: Continuous wave Doppler; PW:
Pulse wave Doppler. |