alexa Differentiating atrioventricular nodal reentrant tachycardia from tachycardia via concealed accessory pathway.


Arrhythmia: Open Access

Author(s): Arya A, Kottkamp H, Piorkowski C, Schirdewahn P, Tanner H

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Studies analyzing the diagnostic value of 12-lead electrocardiographic criteria differentiating slow-fast atrioventricular nodal reentrant tachycardia (AVNRT) from atrioventricular reentrant tachycardia (AVRT) due to concealed accessory pathway have shown inconsistent results. In 97 patients (50 with AVNRT, 47 with AVRT) 12-lead electrocardiograms (ECGs) were recorded during sinus rhythm and tachycardia (QRS <120 ms). The ECGs were blinded for diagnosis and patient and analyzed independently by 2 electrophysiologists. The studied criteria differentiating AVNRT from AVRT included pseudo-r'/S, the presence of a retrograde P wave, RP interval, ST-segment depression >/=2 mm with the number and location of the affected leads, QRS amplitude, and cycle length alternans.

This article was published in Am J Cardiol. and referenced in Arrhythmia: Open Access

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