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Non-Reentrant Atrial Tachycardia

In this article, we will discuss the Non-Reentrant Atrial Tachycardia. So, let’s get started.

Non-Reentrant Atrial Tachycardia

Nonparoxysmal atrial tachycardia or Non-Reentrant Atrial Tachycardia is commonly digitalis-induced or may be associated with severe pulmonary or cardiac disease, with hypokalemia or with administration of theophylline or adrenergic drugs. Multifocal atrial tachycardia (MAT) is not digitalis induced, occurs commonly following theophylline administration.

It is diagnosed by narrow QRS complex tachycardia with irregular heart rate. The P-waves have three or more different morphology in more than two contiguous heads. Treatment is withdraw digoxin, theophylline if found to be the cause, otherwise:

  • Treat underlying cause, i.e. pulmonary disease
  • One can use metoprolol or verapamil I.V. or oral as desired.
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