Table 1.
Summary of in vitro hydrodynamic performance of HCCV and control (Medtronic Freestyle Valve).
| HCCV (n = 4) | Medtronic Freestyle (n = 4) | Significance | P value | |
|---|---|---|---|---|
| Effective orifice area (cm2) | 2.15 (±0.06) | 2.04 (±0.41) | no | 0.5994 |
| Regurgitation fraction (%) | 11.47 (±0.58) | 4.56 (±1.28) | yes | 0.0001 |
| Closing volume (ml) | −7.02 (±1.75) | −0.82 (±0.23) | yes | 0.0004 |
| Leakage Volume (ml) | −4.47 (±2.05) | −3.73 (±1.07) | no | 0.5490 |
| Peak systolic pressure gradient (mmHg) | 23.37 (±1.11) | 23.46 (±3.43) | no | 0.9606 |
| Geometric orifice area (cm2) | 3.13 (±0.14) | 2.21 (±0.14) | yes | 0.0001 |
| Duration of opening (s) | 0.325 (±0.014) | 0.302 (±0.018) | no | 0.0864 |
| Opening rate (cm2/s) | 74.15 (±13.00) | 56.73 (±11.42) | no | 0.0908 |
| Closing rate (cm2/s) | −29.54 (±5.92) | −22.99 (±2.72) | no | 0.0910 |
All data are represented as mean (±SD) with n = 4 independent samples.