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Table 3 ECG variables in 77 patients, in whom a baseline and follow-up 12-lead surface ECG was available

From: Electrocardiographic features of disease progression in arrhythmogenic right ventricular cardiomyopathy/dysplasia

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
  1. Values are means ± standard deviation, medians with interquartile ranges and numbers (percentages).