ECG Criteria Points
Voltage Criteria (any of):
R or S in limb leads ≥20 mm
S in V1 or V2 ≥30 mm
R in V5 or V6 ≥30 mm
3
ST-T Abnormalities:
ST-T vector opposite to QRS without digitalis
ST-T vector opposite to QRS with digitalis
3
1

Negative terminal P mode in V1 1 mm in depth and 0.04 sec in duration (indicates left atrial enlargement) 3
Left axis deviation (QRS of -30° or more) 2
QRS duration ≥0.09 sec 1
Delayed intrinsicoid deflection in V5 or V6 (>0.05 sec)