ASHMAN’S PHENOMENON:

 

 

Aberrancy of a supraventricular impulse into the ventricle, through the bundles, because of a change in the QRS cycle length. Typically, there is a normal QRS complex, a relatively long RR interval, another normal QRS complex, a relatively short RR interval and then aberrant QRS complex.

(QRS…….QRS…….QRS……..QRS………………………QRS……Aber…….QRS…….QRS…….QRS)

Long RR              Short RR

interval                interval

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