In cardiology, a wandering pacemaker is an atrial arrhythmia that occurs when the natural cardiac pacemaker site shifts between the sinoatrial node (SA node), the atria, and/or the atrioventricular node (AV node). This shifting of the pacemaker from the SA node to adjacent tissues is identifiable on ECG Lead II by morphological changes in the P-wave; sinus beats have smooth upright P waves, while atrial beats have flattened, notched, or diphasic P-waves.
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Famous quotes containing the word wandering:
Do our black faces search the empty sky?
Is there something we have forgotten? some precious thing
We have lost, wandering in strange lands?”
—Arna Bontemps (19021973)