Key result
A novel type of dual atrioventricular nodal nonreentrant tachycardia with a repetitive sequence of double-fire phenomenon, 1:1 AV conduction, and nonconducted sinus beats was successfully treated with propafenone.
Case Report (n=1)
This case report describes a novel variant of dual atrioventricular nodal nonreentrant tachycardia characterized by a repetitive sequence of double-fire phenomenon, 1:1 AV conduction, and nonconducted sinus beats, successfully diagnosed using pacemaker modalities and treated with propafenone.
Answers are grounded in this paper and cite their sources.
May expand options for rare dual AV nodal tachycardias; hypothesis-generating and should not change practice.
Dual atrioventricular nodal nonreentrant tachycardia (DAVNNT) is very rarely observed clinically. The first review of this arrhythmia was published in 2011 by Wang, where four types of DAVNNT were described. Our case report presents a phenomenon that has never been published before. We revealed a very specific sequence of double fire phenomenon, 1:1 atrioventricular (AV) conduction and AV block.
No takes yet. Share an insight, caveat, or question.
Kaczmarek et al. (2014) conducted a case report in Dual atrioventricular nodal nonreentrant tachycardia (DAVNNT) (n=1). Propafenone was evaluated on Arrhythmia suppression. A novel type of dual atrioventricular nodal nonreentrant tachycardia with a repetitive sequence of double-fire phenomenon, 1:1 AV conduction, and nonconducted sinus beats was successfully treated with propafenone.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: