Table 1.
Hemodynamic parameters and classification of AR according to AHA (6)
| AR Stent | ROA, cm2 | Mean TVPG, mmHg | Mean AR Fraction, % | AHA Classification |
|---|---|---|---|---|
| Control | 0 | 8.13 ± 0.35 | 2.20 ± 1.64 | None (closing volume) |
| 1 | 0.0121 | 9.98 ± 0.56 | 9.20 ± 1.77 | Trace |
| 2 | 0.0331 | 10.48 ± 0.49 | 15.7 ± 0.25 | Mild |
| 3 | 0.0866 | 11.71 ± 0.12 | 32.0 ± 1.24 | Mild/moderate |
| 4 | 0.1598 | 12.45 ± 1.22 | 43.7 ± 4.58 | Moderate |
The term “mean” refers to an average across all left ventricular models tested. AR, aortic regurgitation; AHA, American Heart Association; ROA, regurgitant orifice area; TVPG, transvalvular pressure gradient.