Atrial tachycardia is a form of supraventricular tachycardia that occurs when one focus in the atria begins to fire rapidly, overwhelming the sinoatrial node. This results in rapid conduction of ...

Multifocal atrial tachycardia — or MAT — is a rhythm that frequently occurs in the setting of severe lung disease. MAT is characterized by three different P-wave morphologies within one 10 ...

[1] A large proportion of SND patients also have atrial fibrillation (AF) and prolonged sinus pauses after AF termination, which is also known as tachycardia-bradycardia syndrome. When ...