Table 2: Main electrocardiographic features of

the epicardiac ventricular arrhythmias.

Epicardiac ventricular arrhythmia features

Pseudo-delta wave > 34 ms

Intrinsecoid deflexion in V2 > 85 ms

Shorter RS complex > 121 ms

Maximum deflexion index in precordial leads > 0.55

(onset to QRS peak/total QRS duration)

Q wave in DI (antero-lateral epicardiac ventricular arrhythmia)

Q wave in inferior leads

(inferior epicardiac ventricular arrhythmia)

Modified from: Boas R et al.14