Table 6 Comparison of ECG feature values from selected leads, stratified by LV Scar percentage.
Feature | Lead | Unit | Value in patients with ≥ 15% LV scar | Value in patients with < 15% LV scar | p value |
|---|---|---|---|---|---|
Q amplitude | aVR | mV | − 0.6 ± 0.5 | − 0.43 ± 0.51 | 0.002 |
QRS terminal duration | aVR | second | 0.039 ± 0.022 | 0.038 ± 0.019 | 0.85 |
QRS non-terminal duration | aVR | second | 0.091 ± 0.024 | 0.091 ± 0.024 | 0.95 |
QRS area under curve | V4 | \(\:mV.second\) | 1.8 ± 9.7 | 1.1 ± 8.6 | 0.2 |
QRS energy | V5 | \(\:{mV}^{2}.second\) | 18.6 ± 20.3 | 14.4 ± 16.5 | 0.001 |
