Changes in strain, strain rate, twist and torsion after TAVI and SAVR
| TAVI N = 25 | SAVR N = 25 | |||||
|---|---|---|---|---|---|---|
| Baseline | 6 months | p value | Baseline | 6 months | p value | |
| Peak circumferential strain | ||||||
| Base | -0.18 ± 0.06 | -0.20 ± 0.06 | 0.13 | -0.19 ± 0.05 | -0.19 ± 0.04 | 0.56 |
| Mid | -0.19 ± 0.06 | -0.22 ± 0.06 | 0.02 | -0.21 ± 0.06 | -0.20 ± 0.04 | 0.46 |
| Apex | -0.20 ± 0.06 | -0.20 ± 0.07 | 0.81 | -0.19 ± 0.06 | -0.18 ± 0.07 | 0.20 |
| Peak mid-ventricular strain rate | ||||||
| Systolic (S-1) | -0.91 ± 0.23 | -1.11 ± 0.22 | 0.001 | -1.06 ± 0.37 | -1.17 ± 0.34 | 0.16 |
| Diastolic (S-1) | 0.91 ± 0.55 | 0.88 ± 0.43 | 0.98 | 1.13 ± 0.57 | 1.22 ± 0.63 | 0.48 |
| LV Twist (0) | 16.6 ± 5.2 | 13.9 ± 5.2 | 0.03 | 14.8 ± 7.8 | 13.75 ± 4.9 | 0.48 |
| LV Torsion | 13.8 ± 4.1 | 11.9 ± 4.6 | 0.05 | 11.5 ± 9.3 | 5.16 ± 2.0 | 0.01 |