Table 1 Differences in baseline patient characteristics and VAs electrocardiographic morphologies
Characteristic | GCV group (n = 15) | LCC group (n = 15) | Subvalvular region group (n = 9) | P value* | P value# |
|---|---|---|---|---|---|
Male, n (%) | 14(93%) | 13(87%) | 8(89%) | ||
Age (years) | 51 ± 23 | 48 ± 21 | 50 ± 14 | 0.71 | 0.81 |
VAs burden (%) | 23 ± 6 | 20 ± 6 | 23 ± 5 | 0.13 | 0.85 |
LVEF (%) | 64.8 ± 4.3 | 63.2 ± 4.8 | 62.0 ± 5.1 | 0.34 | 0.17 |
Structural heart disease (%) | 0 | 0 | 0 | ||
Limb leads | |||||
R-wave amplitude in lead II (mV) | 1.45 ± 0.46 | 2.04 ± 0.36 | 2.28 ± 0.20 | < 0.05 | < 0.05 |
R-wave amplitude in lead III(mV) | 1.74 ± 0.53 | 2.22 ± 0.29 | 2.72 ± 0.30 | < 0.05 | < 0.05 |
III/II R-wave amplitude ratio | 1.21 ± 0.12 | 1.11 ± 0.09 | 1.19 ± 0.07 | 0.06 | 0.65 |
Q-wave amplitude in lead aVR(mV) | 0.65 ± 0.22 | 1.26 ± 0.23 | 0.97 ± 0.10 | < 0.05 | < 0.05 |
Q-wave amplitude in lead aVL(mV) | 1.05 ± 0.31 | 1.32 ± 0.12 | 1.58 ± 0.19 | < 0.05 | < 0.05 |
aVL/aVR Q-wave amplitude ratio | 1.72 ± 0.39 | 1.51 ± 0.2 | 1.67 ± 0.43 | 0.07 | 0.77 |
Duration (ms) | |||||
QRS duration | 172 ± 19 | 148 ± 5 | 152 ± 6 | < 0.05 | < 0.05 |
IDT | 110 ± 16 | 96 ± 9 | 93 ± 8 | < 0.05 | < 0.05 |
Delta wave (ms) | 52 ± 11 | 46 ± 7 | 48 ± 8 | 0.86 | 0.16 |
MDI | 0.64 ± 0.05 | 0.60 ± 0.04 | 0.61 ± 0.02 | < 0.05 | < 0.05 |