QRs VEBs in V1

Report:

Sinus rhythm

VEBs, late-diastolic, in bigeminy

Comment:

The VEBs have an Rs morphology; the Q wave is in fact a superimposed, dissociated sinus P wave. The dissociation is incomplete in the case of the 6th and the 10th complex, where ‘a tad of fusion’ is present. In the bottom strip the P waves merge more with the ectopic complexes and there is no fusion.

The R-on-P VEBs are no more (or less) benign than their R-on-T counterparts.

200. Rhythm recorded following defibrillation of a 62 year old man with unstable angina.

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