Table 2.
Activation times and wave front angles (WFA) for intrinsic left bundle branch block (LBBB) and right ventricular pacing (RVP). Results further broken down into right ventricular apical pacing group (apical group) and right ventricular septal pacing group (septal group)
| • All patients LBBB | RVP | p value | Apical group LBBB | RVP | p value | Septal group LBBB | RVP | p value | |
|---|---|---|---|---|---|---|---|---|---|
| VVsync (ms) | 45.14 ± 20.2 | 35.9 ± 17.1 | 0.010 | 38.2 ± 14.5 | 27.8 ± 11.3 | 0.035 | 57.6 ± 24.6 | 50.4 ± 16.8 | 0.210 |
| VVtat (ms) | 100.7 ± 24.6 | 111.4 ± 20.4 | 0.141 | 89.9 ± 20.6 | 107.4 ± 24.0 | 0.091 | 120.2 ± 8.7 | 118.4 ± 10.5 | 0.827 |
| LVtat (ms) | 87.4 ± 21.1 | 102.8 ± 19.6 | 0.046 | 82.0 ± 20.0 | 103.3 ± 23.8 | 0.066 | 97.0 ± 21.5 | 101.8 ± 10.6 | 0.478 |
| LVdisp (ms) | 27.6 ± 6.9 | 33.4 ± 5.9 | 0.025 | 25.7 ± 6.0 | 33.3 ± 6.9 | 0.046 | 31.2 ± 7.6 | 33.4 ± 4.2 | 0.319 |
| WFA (°) | 82.5 ± 25.2 | 62.1 ± 31.7 | 0.026 | 76.7 ± 28.9 | 50.0 ± 27.6 | 0.049 | 93.0 ± 13.5 | 84.0 ± 28.4 | 0.548 |
VVsync right/left ventricular electrical synchrony, VVtat biventricular total activation time, LVtat left ventricular total activation time, LVdisp left ventricular dispersion of activation, WFA wave front angle