Table 2:
Aortic calcification characteristics
| Label | Before matching |
After matching |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SAVR, N = 105 |
TAVR, N = 59 |
SAVR, N = 29 |
TAVR, N = 29 |
|||||||
| Na | Count (%), mean (SD) | Na | Count (%), mean (SD) | SMD (%) |
Na | Count (%), mean (SD) | Na | Count (%), mean (SD) | SMD (%) | |
| Calcium volume (ml, SD) | ||||||||||
| Aortic root | 62 | 2.4 (1.6) | 39 | 3.1 (1.7) | 46 | 18 | 2.4 (1.3) | 19 | 2.5 (1.4) | 13 |
| Ascending aorta | 62 | 6.2 (3.5) | 39 | 6.8 (5.2) | 14 | 18 | 6.5 (3.4) | 19 | 7.2 (4.8) | 19 |
| Aortic arch | 62 | 5.8 (4.5) | 39 | 8.2 (5.7) | 47 | 18 | 7.7 (5.3) | 19 | 7.9 (5.1) | 4.3 |
| Total | 62 | 14.4 (6.9) | 39 | 18.1 (9.3) | 45 | 18 | 17 (7.7) | 19 | 18 (8.0) | 14 |
| Calcium classification (%) | ||||||||||
| Unclampable (IA) | 83 | 38 (46) | 53 | 24 (45) | –1.0 | 23 | 11 (48) | 26 | 14 (54) | 12 |
| Clampable (IB) | 83 | 45 (54) | 53 | 29 (55) | 1.0 | 23 | 12 (52) | 26 | 12 (46) | –12 |
| Calcium characteristics (%) | ||||||||||
| Regions of continuous calcification | 83 | 44 (53) | 53 | 29 (55) | 3.4 | 23 | 13 (57) | 26 | 16 (62) | 10 |
| Regions of diffuse calcification | 83 | 72 (87) | 53 | 44 (83) | –10 | 23 | 17 (74) | 26 | 21 (81) | 16 |
| Calcification involving arch-branch vessels | 83 | 76 (92) | 53 | 47 (89) | −9.7 | 23 | 20 (87) | 26 | 24 (92) | 18 |
Additional preoperative valvular characteristics are presented in Supplementary Material, Table S9.
a
Patients with data available.
SAVR: surgical aortic valve replacement; SD: standard deviation; SMD: standardized mean difference; TAVR: transcatheter aortic valve replacement.