Pacer Malfunction?

A patient with a pacemaker was admitted with CVA.

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From time to time, but not always, telemetry systems pick-up these things  (pacer artifacts). There were no spikes noted in aVL. So, these are just artifacts. This Pt was just on bed doing nothing/asymptomatic (in relation  to this event). No stimulators and no manipulations done on the machine  either.No interference noted. We just changed wires, stickers and  last resort was to change the box. After those changes, pacer artifacts are gone.I have no answer for these  artifacts. 

#67

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