CT and procedural characteristics and their association with permanent pacemaker insertion following TAVI
| Q1/reference | Q3/risk | OR (95% CI) | P value | |
| Aortic root rotation (°) | 2.05 | 19.25 | 0.92 (0.61 to 1.39) | 0.69 |
| Aortic root qualification | central/counterclockwise | clockwise | 0.80 (0.38 to 1.70) | 0.57 |
| Aortic root wedging (mm) | 37.78 | 47.19 | 0.92 (0.58 to 1.46) | 0.72 |
| Frontal aortic root tilt angle (°) | 42.20 | 53.73 | 1.01 (0.67 to 1.51) | 0.97 |
| Left ventricle to aortic root angle: three-chamber plane (°) | 122.45 | 133.70 | 0.85 (0.54 to 1.34) | 0.48 |
| Membranous septum height (mm) | 3.18 | 5.20 | 0.91 (0.60 to 1.38) | 0.66 |
| Membranous septum width (mm) | 4.70 | 8.60 | 0.92 (0.56 to 1.51) | 0.76 |
| Membranous septum area (mm) | 11.50 | 34.71 | 0.86 (0.51 to 1.45) | 0.57 |
| Inferior distance (mm) | 1.50 | 4.40 | 0.84 (0.51 to 1.38) | 0.50 |
| Valve implantation depth (mm) | 3.83 | 7.40 | 1.62 (1.01 to 2.61) | 0.05 |
| Δ Inferior distance to implantation depth (mm) | −5.06 | −0.59 | 0.61 (0.38 to 0.99) | 0.05 |
| Valve oversizing (%) | 4.23 | 19.55 | 1.19 (0.73 to 1.94) | 0.48 |
| Self/mechanical-expandable versus balloon-expandable valves | Balloon | Self/mechanical | 2.35 (1.13 to 4.87) | 0.02 |
| Valve type | ||||
| Boston | Edwards | Boston | 4.51 (1.75 to 11.56) | 0.01 |
| Medtronic | Edwards | Medtronic | 1.73 (0.78 to 3.87) |
OR and 95% CI estimated from logistic regression. OR for a comparison of the IQR (Q3 vs Q1). P value for the Wald test.
Q1, quartile 1 (25th percentile);Q3, quartile 3 (75th percentile);TAVI, transcatheter aortic valve implantation; Inferior distance, virtual basal ring to muscular ventricular septum height; Δ inferior distance to implantation depth, difference between inferior distance and valve implantation depth.