Table 3. Echocardiographic data .
| RAAS | Control | P | |
| Preprocedural | |||
| Aortic valve area (VTI) (cm2) | 0.96 (0.34) | 0.91 (0.25) | 0.223 |
| Peak aortic velocity (cm/s) | 412.2 (63.4) | 407.8 (61.8) | 0.660 |
| Peak aortic gradient (mmHg) | 69.5 (20.8) | 67.9 (19.3) | 0.609 |
| Mean aortic gradient (mmHg) | 44.2 (13.3) | 43.5 (12.1_ | 0.720 |
| Ejection fraction (%) | 55.6 (14.1) | 58.6 (11.6) | 0.131 |
| Stroke volume (mL) | 93.1 (25.9) | 86.9 (17.5) | 0.089 |
| Moderate aortic regurgitation (%) | 25 (18) | 22 (21) | 0.584 |
| Severe aortic regurgitation (%) | 4 | 4 | 1.000 |
| Moderate mitral regurgitation (%) | 37 | 18 | 0.012 |
| Severe mitral regurgitation (%) | 0 | 6 | 0.040 |
| 24 hour post-TAVR | |||
| Aortic valve area (VTI) (cm2) | 2.31 (0.75) | 2.16 (0.65) | 0.178 |
| Peak aortic velocity (cm/s) | 221.0 (53.1) | 214.0 (54.6) | 0.411 |
| Peak aortic gradient (mmHg) | 20.6 (10.1) | 19.2 (10.9) | 0.402 |
| Mean aortic gradient (mmHg) | 12.1 (5.9) | 11.6 (7.0) | 0.684 |
| Ejection fraction (%) | 61.0 (13.5) | 61.3 (12.5) | 0.886 |
| Stroke volume (mL) | 100.7 (28.6) | 92.8 (28.9) | 0.082 |
| Moderate aortic regurgitation (%) | 6 | 10 | 0.399 |
| Moderate mitral regurgitation (%) | 10 | 16 | 0.262 |
| Severe mitral regurgitation (%) | 0 | 4 | 0.140 |
| 1 year post-TAVR | |||
| Aortic valve area (VTI) (cm2) | 2.01 (0.62) | 1.98 (0.60) | 0.795 |
| Peak aortic velocity (cm/s) | 223.3 (49.6) | 219.2 (50.8) | 0.641 |
| Peak aortic gradient (mmHg) | 21.1 (9.0) | 20.5 (11.1) | 0.743 |
| Mean aortic gradient (mmHg) | 11.8 (5.0) | 11.8 (6.6) | 0.991 |
| Ejection fraction (%) | 58.0 (13.8) | 58.1 (12.4) | 0.948 |
| Stroke volume (mL) | 96.9 (29.4) | 90.6 (28.1) | 0.229 |
| Moderate aortic regurgitation (%) | 10 | 16 | 0.328 |
| Moderate mitral regurgitation (%) | 8 | 17 | 0.142 |
| Severe mitral regurgitation (%) | 2 (1) | 9 (7) | 0.138 |
Values are mean (standard deviation) or %.