Table 3 ECG variables in 77 patients, in whom a baseline and follow-up 12-lead surface ECG was available
ECG variable | Baseline ECG | Follow-up ECG | p-value |
|---|---|---|---|
Epsilon waves in V1, V2, or V3 | 11 (14%) | 24 (31%) | 0.01 |
Late potentials in inferior leads | 6 (8%) | 9 (12%) | 0.45 |
Minor ECG depolarization criterion | 21 (27%) | 19 (25%) | 0.56 |
Terminal activation duration (ms) | 50 (44–64) | 50 (45–60) | 0.47 |
Major ECG repolarization criterion | 29 (38%) | 28 (36%) | 0.58 |
Minor ECG repolarization criterion | 14 (18%) | 18 (23%) | 0.55 |
T wave inversions in inferior leads | 28 (36%) | 31 (40%) | 0.65 |
T wave inversions in V4, V5, or V6 | 33 (43%) | 40 (52%) | 0.25 |
Number of leads with T wave inversions | 4 (2-6) | 5 (2–7) | 0.18 |
Number of precordial leads with T wave inversions | 2 (1–4) | 3 (1–5) | 0.1 |
QRS duration (ms) | 111 (100–125) | 114 (100–128) | 0.04 |
QT duration (ms) | 431 (399–435) | 420 (400–441) | 0.57 |