Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastrointest Endosc. Mar 16, 2012; 4(3): 87-93
Published online Mar 16, 2012. doi: 10.4253/wjge.v4.i3.87
Figure 1
Figure 1 Electrocardiographic telemetry tracings from 2 patients with inappropriate pacer spikes (denoted by arrows). A: Undersensing of atrial fibrillatory waves is evident by the atrial pacer spikes preceding the 6th and 9th R waves; B: The atrial pacer spike preceding the 3rd R wave represents undersensing of a fibrillatory wave.