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Uptodate Reference Title
Wandering atrial pacemaker
Wandering atrial pacemaker
Wandering atrial pacemaker. Lead V1 and lead II rhythm strips show an irregularly irregular rhythm. On close examination there are more than 3 different P wave morphologies preceding each QRS complex. As the rate is <100 beats per minute, the rhythm is wandering atrial pacemaker (rather than multifocal atrial tachycardia).