An Epsilon wave is the characteristic ECG finding in arrhythmogenic right ventricular dysplasia (ARVD). The Epsilon wave occurs just after the QRS in lead V1 representing early afterdepolarizations.

3 6 New additions to the ‘red’ box or list of abnormal ECG findings include epsilon waves, and TWI ≥1 mm in V5 or V6 alone. Findings that warrant evaluation for coronary artery disease in athletes ≥30 ...

The classic ECG findings in arrhythmogenic right ventricular dysplasia are inverted T waves in the right precordial leads (V1-V3) with an epsilon wave after the QRS in lead V1, representing early ...