Table 1.
Mapping data: data of electrical mapping study during Langendorff perfusion.
| Sham | TAC |
|||
|---|---|---|---|---|
| All | TAC+ | TAC− | ||
| RV θL (cm s−1) | 68.6 ± 2.4 | 67.1 ± 3.4 | 65.2 ± 4.6 | 70.1 ± 5.3 |
| RV θT (cm s−1) | 43.4 ± 2.3 | 39.0 ± 1.9 | 41.1 ± 2.5 | 35.6 ± 2.7 |
| RV anisotropic ratio | 1.64 ± 0.10 | 1.75 ± 0.09 | 1.60 ± 0.11 | 1.98 ± 0.09 |
| RV ERP (ms) | 45.4 ± 2.7 | 54.6 ± 3.9 | 60.0 ± 5.3 | 46.0 ± 2.4 |
| RV DoC (cm s−1) | 1.21 ± 0.088 | 1.32 ± 0.13 | 1.40 ± 0.20 | 1.20 ± 0.12 |
| LV θL (cm s−1) | 62.8 ± 5.7 | 68.9 ± 3.3 | 64.3 ± 4.9 | 74.5 ± 3.5 |
| LV θT (cm s−1) | 27.5 ± 2.5 | 27.9 ± 2.7 | 26.8 ± 3.2 | 29.2 ± 5.1 |
| LV anisotropic ratio | 2.29 ± 0.13 | 2.63 ± 0.20 | 2.48 ± 0.22 | 2.80 ± 0.38 |
| LV ERP (ms) | 59.1 ± 4.1 | 67.5 ± 3.3 | 65.7 ± 4.8 | 70.0 ± 4.5 |
| LV DoC (cm s−1) | 1.23 ± 0.075 | 1.90 ± 0.087* | 2.10 ± 0.060† | 1.64 ± 0.12 |
| LV θTM (cm s−1) | 58.5 ± 3.9 | 37.6 ± 2.9* | 35.0 ± 4.8 | 40.7 ± 2.9 |
RV/LV, right and left ventricle, respectively; θL/θT/θTM, conduction velocity longitudinal, transversal, or perpendicular to epicardial fiber direction, respectively, at pacing cycle length of 150 ms; ERP, effective refractory period; DoC, dispersion of conduction.
*P < 0.01 vs. sham; †P < 0.01 vs. TAC−.
Significant comparisons are highlighted in bold.