CT and procedural characteristics and their association with permanent pacemaker insertion following TAVI in patients (Lotus valve excluded)
| Q1/reference | Q3/risk | OR (95% CI) | p-value | |
| Preprocedural QRS duration* (ms) | 92 | 126 | 1.72 (1.02 to 2.90) | 0.04 |
| Preprocedural RBBB | No | Yes | 7.43 (2.97 to 18.58) | <0.001 |
| Aortic root rotation (°) | 2.30 | 18.60 | 0.92 (0.58 to 1.46) | 0.71 |
| Aortic root qualification | Central/counterclockwise | Clockwise | 0.75 (0.31 to 1.81) | 0.52 |
| Aortic root wedging (mm) | 37.50 | 47.30 | 0.97 (0.57 to 1.65) | 0.90 |
| Frontal aortic root tilt angle (°) | 41.85 | 54.40 | 0.91 (0.55 to 1.51) | 0.73 |
| Left ventricle to aortic root angle: three-chamber plane* (°) | 122.55 | 134.30 | 1.2 (0.7 to 2.06) | 0.51 |
| Membranous septum height (mm) | 3.10 | 5.10 | 0.94 (0.58 to 1.51) | 0.79 |
| Membranous septum width (mm) | 4.75 | 8.60 | 1.01 (0.57 to 1.77) | 0.98 |
| Membranous septum area (mm) | 10.83 | 34.27 | 0.92 (0.5 to 1.7) | 0.79 |
| Inferior distance (mm) | 1.40 | 4.20 | 0.88 (0.5 to 1.53) | 0.64 |
| Valve implantation depth (mm) | 4.03 | 7.36 | 1.46 (0.85 to 2.52) | 0.17 |
| Δ Inferior distance to implantation depth (mm) | −5.14 | −0.67 | 0.69 (0.39 to 1.2) | 0.18 |
| Valve oversizing (%) | 4.65 | 21.25 | 1.68 (0.93 to 3.04) | 0.09 |
| Self-expandable versus balloon-expandable valves | Balloon | Self | 1.73 (0.78 to 3.87) | 0.18 |
Inferior distance, virtual basal ring to muscular ventricular septum height; Δ inferior distance to implantation depth, difference between inferior distance and valve implantation depth.
OR and 95% CI estimated from logistic regression. OR for a comparison of the IQR (Q3 vs Q1). P value for the Wald test.
*Model includes restricted cubic spline term with three knots placed at the 10th, 50th and 90th percentiles.
Q1, quartile 1 (25th percentile);Q3, quartile 3 (75th percentile);RBBB, right bundle branch block;TAVI, transcatheter aortic valve implantation.