Here is an example: A “rate-dependent” right bundle branch block can also occur during times of fast heart rate. When the heart rate slows, the narrow QRS complex returns. A rate-dependent ...
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 ...