Aberrant cardiac conduction can occur in any of the specialized cardiac conduction tissues. Rate dependent aberrancy is the most common cause of aberrant conduction.
Generally it is thought only supra ventricular impulses can undergo aberrant conduction. But it is not always true.
Many of the ventricular tachycardia which have inherently wide QRS complex can further widen their QRS width when it conducts fast down stream.This is especially true in many of the septal VTs and fascicular VT which are falsely diagnosed as myocardial VT. These proximal VTs which other wise would have been a narrow QRS VT are converted into wide QRS VT by functional aberration .
Message :
Don’t always think SVT only has a potential to undergo with aberrancy
The VTs also can behave similarly.
Dr.S.Venkatesan MD 