The 12-lead ECG during ventricular tachycardia: Still an important tool for ventricular tachycardia localization in structural heart disease

Use of the 12-lead ECG recorded during ventricular tachycardia (VT) to regionalize its origin was first described by Josephson et  al1 in 1981. Their paper had 11 figures, unheard of by then-current publication standards. Each showed one to five 12-lead ECG patterns during VT corresponding to a region of origin on the cardiac silhouette. Specific but relatively simple rules based on the 12-lead ECG pattern were described. Bas al left ventricular (LV) VTs have large R waves across most precordial leads, whereas apical VTs have no or poor R-wave progression or early regression.
Source: Heart Rhythm - Category: Cardiology Authors: Tags: Editorial Commentary Source Type: research