Table 5

CT and procedural characteristics and their association with permanent pacemaker insertion following TAVI in patients (Lotus valve excluded)

Q1/referenceQ3/riskOR (95% CI)p-value
Preprocedural QRS duration* (ms)921261.72 (1.02 to 2.90)0.04
Preprocedural RBBBNoYes7.43 (2.97 to 18.58)<0.001
Aortic root rotation (°)2.3018.600.92 (0.58 to 1.46)0.71
Aortic root qualificationCentral/counterclockwiseClockwise0.75 (0.31 to 1.81)0.52
Aortic root wedging (mm)37.5047.300.97 (0.57 to 1.65)0.90
Frontal aortic root tilt angle (°)41.8554.400.91 (0.55 to 1.51)0.73
Left ventricle to aortic root angle: three-chamber plane* (°)122.55134.301.2 (0.7 to 2.06)0.51
Membranous septum height (mm) (0.58 to 1.51)0.79
Membranous septum width (mm)4.758.601.01 (0.57 to 1.77)0.98
Membranous septum area (mm)10.8334.270.92 (0.5 to 1.7)0.79
Inferior distance (mm)1.404.200.88 (0.5 to 1.53)0.64
Valve implantation depth (mm)4.037.361.46 (0.85 to 2.52)0.17
Δ Inferior distance to implantation depth (mm)−5.14−0.670.69 (0.39 to 1.2)0.18
Valve oversizing (%)4.6521.251.68 (0.93 to 3.04)0.09
Self-expandable versus balloon-expandable valvesBalloonSelf1.73 (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.