None of the patients with AVNRT had a history of regular palpitations or regular narrow complex tachycardia. Patients with AVNRT tended to be younger than those without. In 13 patients ...

The atrial rate during atrial tachycardia is usually between 100 and 200 beats per minute. A narrow complex tachycardia results with P wave morphologies that are different than normal sinus P waves.

The term “SVT” can be confusing at times. In general, this term is used to describe a narrow complex tachycardia not including atrial fibrillation or atrial flutter. The term SVT frequently ...