Note that you can march out the narrow ... of the wide complex on the right. The wide complex is simply artifact from patient movement, however may be mistaken for ventricular tachycardia.

Findings on ECG include the following: a narrow complex tachycardia; and variable findings, depending on the direction of the circuit and location of the accessory conduction pathway.

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 ...