BACKGROUND: The dual atrioventricular nodal nonreentry tachycardia (DAVNNT) is a rare form of tachycardia which occurs due to a time delayed double antegrade conduction via the slow and fast atrioventricular nodal pathways. Its epidemiology is not known so far. The aim of this article is to present the clinical findings in a series of patients with DAVNNT. MATERIALS AND METHODS: We retrospectively analyzed our database of patients who successfully underwent radiofrequency catheter ablation between January 2012 and March 2013 due to diagnosed supraventricular tachycardia. RESULTS: In 3 out of 231 patients DAVNNT could be successfully treated by slow pathway modulation/ablation. Patients presented with widely varying symptoms including syncope, palpitations which had been mistaken as atrial fibrillation, and inappropriate defibrillator shocks due to suspected ventricular tachycardia. CONCLUSIONS: The DAVNNT seems to be more common than previously thought. This important differential diagnosis needs to be taken into consideration as slow pathway modulation can be curative while a misdiagnosis, such as atrial fibrillation or ventricular tachycardia might result in over-treatment in patients with this arrhythmia.
BACKGROUND: The dual atrioventricular nodal nonreentry tachycardia (DAVNNT) is a rare form of tachycardia which occurs due to a time delayed double antegrade conduction via the slow and fast atrioventricular nodal pathways. Its epidemiology is not known so far. The aim of this article is to present the clinical findings in a series of patients with DAVNNT. MATERIALS AND METHODS: We retrospectively analyzed our database of patients who successfully underwent radiofrequency catheter ablation between January 2012 and March 2013 due to diagnosed supraventricular tachycardia. RESULTS: In 3 out of 231 patientsDAVNNT could be successfully treated by slow pathway modulation/ablation. Patients presented with widely varying symptoms including syncope, palpitations which had been mistaken as atrial fibrillation, and inappropriate defibrillator shocks due to suspected ventricular tachycardia. CONCLUSIONS: The DAVNNT seems to be more common than previously thought. This important differential diagnosis needs to be taken into consideration as slow pathway modulation can be curative while a misdiagnosis, such as atrial fibrillation or ventricular tachycardia might result in over-treatment in patients with this arrhythmia.
Authors: Boris A Hoffmann; Johannes Brachmann; Dietrich Andresen; Lars Eckardt; Ellen Hoffmann; Karl-Heinz Kuck; Burghard Schumacher; Stefan G Spitzer; Petra Schirdewahn; Jürgen Tebbenjohanns; Martin Horack; Jochen Senges; Tushar V Salukhe; Thomas Rostock; Stephan Willems Journal: Heart Rhythm Date: 2011-02-10 Impact factor: 6.343
Authors: Jens Hartmann; Christiane Jungen; Sebastian Stec; Niklas Klatt; Stephan Willems; Hisaki Makimoto; Daniel Steven; Helmut Pürerfellner; Martin Martinek; Christian Meyer Journal: Clin Res Cardiol Date: 2020-01-30 Impact factor: 5.460