Supernormal Conduction in RBBB
Report:
Sinus rhythm 72/min
SVEBs, one couplet
Right bundle branch block
Supernormal conduction
Comment:
The SVEBs are all preceded by P’, resetting the sinus pacemaker. What is unusual and unexpected is their normal intraventricular conduction despite prematurity, pre-existing RBBB in sinus beats and the long-short sequencing. This better-than-expected conduction is known as supernormal. It does not mean better or faster than normal.
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