Wandering atrial pacemaker

A wandering atrial pacemaker causes an arrhythmia that originates from several sites within the atria. This causes a rhythm that is slightly irregular with multiple different P wave shapes.

This rhythm is also known as Multifocal Atrial Tachycardia if the rate is fast (>100 bpm).

See also: Atrial Rhythms

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Featured Example

References

    ECG Library (3)

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    In the ECGquest archives, this ECG has been tagged with: - Chest pain 12-Lead Variable P waves Wandering atrial pacemaker ECG Interpretation CC-BY-NC-SA
    ECG Blog #155 (Arrhythmia – PACs – Wandering – MAT )

    This ECG is from a woman in her 50s who presented with intermittent chest discomfort in recent weeks.

    In the ECGquest archives, this ECG has been tagged with: - 12-Lead Incorrect Machine Interpretation Variable P waves Sinus arrhythmia Wandering atrial pacemaker Dr Smith's ECG Blog CC BY-NC
    Beware Automated Interpretations of Atrial Fibrillation!

    This ECG is from a patient of unknown age. The computer interpretation was Atrial Fibrillation.