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  • 1 Department of Cardiology, University of Debrecen, Debrecen, Hungary
  • 2 Department of Cardiology, University of Debrecen, Móricz Zs. krt. 22, H-4032, Debrecen, Hungary
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Abstract

We are exposing a differential diagnostic problem in the case report of a young female with the diagnosis of atrial fibrillation who was referred to our Institute for pulmonary vein isolation. Based on the 12-lead ECG we found an unusal mechanism resulting in irregular, narrow QRS tachycardia, which was also confirmed by an electrophysiological study.

  • 1. J. Germano 2005 Concealed and manifest 1:2 tachycardia and atrioventricular nodal reentrant tachycardia: Manifestations of dual atrioventricular nodal physiology Heart Rhythm 2 536 539.

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  • 2. M. Mansour 2003 Incessant nonreentrant tachycardia due to simultaneous conduction over dual atrioventricular nodal pathways mimicking atrial fibrillation in patients referred for pulmonary vein isolation J Cardiovasc Electrophysiol 14 752 755.

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