Differentiating atrioventricular nodal reentrant tachycardia from tachycardia via concealed accessory pathway |
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Authors: | Arya Arash Kottkamp Hans Piorkowski Christopher Schirdewahn Petra Tanner Hildegard Kobza Richard Dorszewski Anja Gerds-Li Jing-Hong Hindricks Gerhard |
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Affiliation: | Heart Center, Department of Electrophysiology, University of Leipzig, Leipzig, Germany. |
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Abstract: | 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. |
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