Table 3. TAVR procedural characteristics stratified by STS risk score (low, intermediate, and high-risk).
Categorical variables are presented by count (%); continuous variables are presented by median (IQR).
TAVR: transcatheter aortic valve replacement; SAVR: surgical aortic valve replacement; STS: Society of Thoracic Surgeons
| Variables | Patients’ STS score | P value | |||
| All (n=399) | Low risk (n=200) | Intermediate risk (n=136) | High risk (n=63) | ||
| Approach | |||||
| Trans-femoral | 388 (97.2) | 196 (98) | 131 (96.3) | 61 (96.8) | 0.5 |
| Trans-axillary | 5 (1.3) | 1 (0.5) | 3 (2.2) | 1 (1.6) | 0.3 |
| Trans-carotid | 1 (0.3) | 0 | 0 | 1 (1.6) | 0.42 |
| Left subclavian artery | 1 (0.3) | 0 | 1 (0.7) | 0 | 0.56 |
| Trans-aortic | 2 (0.5) | 2 (1) | 0 | 0 | 0.3 |
| Trans-caval | 2 (0.5) | 1 (0.5) | 1 (0.7) | 0 | 0.326 |
| Anesthesia | |||||
| General | 10 (2.5) | 4 (2) | 4 (2.9) | 2 (3.2) | 0.748 |
| Conscious sedation | 389 (97.5) | 196 (98) | 132 (97.1) | 61 (96.8) | |
| Valve-in-Valve Procedure | |||||
| TAVR-in-SAVR | 30 (7.5) | 11 (5.5) | 11 (8.1) | 8 (12.7) | 0.15 |
| TAVR-in-TAVR | 2 (0.5) | 0 | 2 (1.5) | 0 | 0.3 |
| Dilation | |||||
| Pre-dilation | 191 (48.7) | 93 (47) | 65 (48.5) | 33 (55) | 0.56 |
| Post-dilation | 109 (27.8) | 58 (29.4) | 31 (23.1) | 20 (32.8) | 0.2 |
| Total Procedural Time (min) | 89 (60-120) | 89 (61-118) | 82 (60-120) | 90 (60-125) | 1 |