Table 2 .
Procedural details and complications.
| Parameter | Conventional (n = 57)* | ASTRID-AS (n = 25) | P value | |
|---|---|---|---|---|
| Prosthesis type | Navitor | 4 (7.0%) | 2 (8.0%) | 0.904 |
| Portico | 18 (31.6%) | 6 (24.0%) | ||
| Sapien 3 | 26 (45.6%) | 11 (44.0%) | ||
| Sapien S3 ultra | 9 (15.8%) | 6 (24.0%) | ||
| Pre-dilatation | 26 (45.6%) | 8 (32.0%) | 0.249 | |
| Further valve intervention | 2 (3.5%) | 2 (8.0%) | 0.582 | |
| General anaesthesia | 2 (3.5%) | 0 (0.0%) | 1.000 | |
| Vasopressor/inotrope use | 4 (7.0%) | 1 (4.0%) | 1.000 | |
| Contrast administered (ml) | 213 (191–242) | 199 (167–221) | 0.058 | |
| Pacemaker | 4 (7.0%) | 3 (12.0%) | 0.670 | |
| Stroke | 0 | 0 | n/a | |
| Major vascular complication | 1 (1.8%) | 0 (0.0%) | 1.000 | |
| Minor vascular complication | 4 (7.0%) | 2 (8.0%) | 1.000 | |
| Major bleeding | 1 (1.8%) | 2 (8.0%) | 0.219 | |
| Minor bleeding | 4 (7.0%) | 2 (8.0%) | 1.000 | |
| Decrease in haemoglobin (g/dL) | 1.5 ± 1.3 | 1.3 ± 1.1 | 0.579 | |
| Red Cell transfusion | 5 (8.6%) | 2 (8.0%) | 1.000 | |
*One patient in the conventional cohort died in hospital before TAVI. Contrast administered is the total volume of contrast used from CT angiography and TAVI.