Advanced AV Block Following VEBs

Report:

Sinus rhythm

VEBs

Triplet of ventricular tachycardia

Advanced second degree AV block

Comment:

The episodes of ventricular standstill all follow the VEBs. The VEBs appear to have retrograde conduction, which may account for sinus rates being slowest immediately following the VEBs (other possibilities include an unrelated original vagal surge and subsequent progressive tachycardia due to falling BP).

This is a rare but recognised85 form of advanced AV block. Like in many interesting tracings, the recording leaves much to be desired.

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