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. Author manuscript; available in PMC: 2014 Dec 9.
Published in final edited form as: Heart Rhythm. 2008 Mar 4;5(4):545–550. doi: 10.1016/j.hrthm.2008.02.033

Figure 4.

Figure 4

A. Baseline rhythm strip showing surface electrocardiogram, atrial intracardiac electrogram, and ventricular intracardiac (top, middle, bottom), with atrial pacing (Ap) and ventricular sensing (Vs) noted in the marker channel, and intervals noted in milliseconds. B. Rhythm strip with placement of DMP causing electromagnetic interference (ER) with the atrial intracardiac channel and the marker channel, but no change in the ventricular channel and no change in intervals on the surface ECG. There is no effect of the digital music player on the actual rhythm.