Multifocal atrial tachycardia is a tachycardic version of wandering atrial pacemaker in which the atrial rate is greater than 100 beats per minute.
Multifocal atrial tachycardia — or MAT — is a rhythm that frequently occurs in the setting of severe lung disease.
Atrial tachycardia is a form of supraventricular tachycardia that occurs when one focus in the atria begins to fire rapidly, overwhelming the sinoatrial node.
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