Table III.
Pre-procedural computed tomography measurements, pre- and post-interventional echocardiography and procedural data
| Echocardiographic measurements: | |||
|---|---|---|---|
| All, n = 15 | Pre-TAVI | Post-TAVI | P-value |
| Transaortic gradient [mm Hg], mean ± SD: | |||
| Mean | 45.9 ±13.7 | 7.6 ±3.2 | < 0.001 |
| Max. | 73.9 ±27.1 | 15.2 ±5.7 | < 0.001 |
| AVA [cm2], mean ± SD | 0.65 ±0.21 | – | – |
| AR: | |||
| None-small | – | 14 (93.3) | – |
| Moderate | – | 1 (6.7) | – |
| Significant | – | 0 | – |
| LVEF (%), mean ± SD | 52.5 ±12.6 | – | – |
| LVEF ≤ 35%, n (%) | 3 (20) | – | – |
| LVEDD [mm], mean ± SD | 51.1 ±5.4 | – | – |
| RVSP [mm Hg], mean ± SD | 54.4 ±15.5 | 50.6 ±13.4 | 0.53 |
| Mitral gradient [mm Hg], mean ± SD: | |||
| Mean | 4.4 ±1.4 | 4.5 ±1.8 | 0.85 |
| Max. | 13.7 ±5.1 | 13.9 ±4.3 | 0.97 |
| Bicuspid aortic valve, n (%) | 1 (6.7) | – | – |
| Concomitant PCI, n (%) | 0 | – | – |
| Computed tomography measurements: | |||
| All, n = 15 | Pre-TAVI | ||
| Angle between mitral prosthesis and aortic valve planes [°] mean ± SD | 59.5 ±11.7 | ||
| Distance between mitral prosthesis and aortic annulus [mm], mean ± SD | 8.6 ±2.5 | ||
| Distance between aortic annulus and coronary ostia [mm], mean ± SD: | |||
| LMCA | 14.7 ±3.6 | ||
| RCA | 15.4 ±3.0 | ||
| Perimeter of aortic annulus [mm], mean ± SD | 78.1 ±8.5 | ||
| LVOT diameter [mm], mean ± SD: | |||
| Shorter | 20.7 ±3.8 | ||
| Longer | 27.6 ±2.8 | ||
| TAVI intervention: | |||
| Vascular approach, n (%): | |||
| Femoral | 14 (93.3) | ||
| Apical | 1 (6.7) | ||
| Intraoperative TEE guidance, n (%) | 1 (6.7) | ||
| Aortic prosthesis size, [mm], mean ± SD | 28.5 ±2.7 | ||
| Predilatation, n (%) | 11 (73.3) | ||
| Postdilatation, n (%) | 6 (40) | ||
| Complications: | |||
| Tamponade, n (%) | 1 (6.7) | ||
| Stroke | 0 | ||
| Pacemaker | 0 | ||
| Death: | |||
| Periprocedural | 0 | ||
| In-hospital | 0 | ||
| At follow-up, n (%) | 2 (13.3) | ||
AR – aortic regurgitation, AVA – aortic valve area, AVR – aortic valve replacement, IQR – interquartile range, LMCA – left main coronary artery, LVEDD – left ventricle end diastolic diameter, LVEF – left ventricle ejection fraction, LVOT – left ventricle outflow tract, MR – mitral regurgitation, PASP – pulmonary artery systolic pressure, SD – standard deviation, PCI – percutaneous coronary intervention, RCA – right coronary artery, TTE – transthoracic echocardiography, TAVI – transcatheter aortic valve implantation, TEE – transesophageal echocardiography.