QRS duration greater than 120 milliseconds Absence of Q wave in leads I, V5 and V6 Monomorphic R wave in I, V5 and V6 ST and T wave displacement opposite to the major deflection of the QRS complex ...

Monomorphic R wave in I, V5 and V6. ST and T wave displacement opposite to the major deflection of the QRS complex. Note: Incomplete LBBB is present if the QRS duration is between 100 ms and 119 ...