Table 2.
Baseline ventricular activation times.
| LVOT VTI (cm) | VaT10-90 (ms) | TVaT (ms) | |
|---|---|---|---|
| Aetiology | |||
| Ischaemic | 13 ± 6 | 82.6 ± 5 | 145 ± 6 |
| Nonischaemic | 18 ± 6 | 77.6 ± 10 | 141 ± 9 |
|
| |||
| QRS morphology | |||
| LBBB | 14 ± 6 | 84 ± 22 | 146 ± 26 |
| Non-LBBB | 17 ± 5 | 71 ± 10 | 137 ± 9 |
|
| |||
| QRS duration | |||
| 120 to 150 ms | 14 ± 7 | 67 ± 19 | 129 ± 30 |
| >150 ms | 16 ± 6 | 87 ± 19 | 150 ± 5 |
Values represent means ± SD. LBBB, left bundle branch block; LV, left ventricle; LVOT VTI, left ventricular outflow tract velocity time integral; non-LBBB, non-left bundle branch block; RV, right ventricle; TVaT, Total ventricular activation time; VaT10-90, ventricular activation time10-90. Values were compared by Mann–Whitney U test.