Why the study?
Concealed nodoventricular fiber is a very rare retrograde accessory pathway in SVT with AV dissociation, with only a few cases of successful ablation reported.
Population
32-year-old woman with a rare narrow QRS tachycardia with AV dissociation
Design
Case report
Key result
Radiofrequency ablation of the slow pathway of the AV node successfully eliminated the inducibility of a rare narrow QRS tachycardia with atrioventricular dissociation.
Authors
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May support slow pathway ablation for rare tachycardias with AV dissociation; hypothesis-generating and requires validation in larger series.
Case Report (n=1)
No
Narrow QRS tachycardia with AV dissociation can be induced by a rare concealed nodoventricular fiber and successfully treated with RF ablation by targeting the earliest retrograde atrial potential.
Zhu et al. (2020) conducted a case report in Narrow QRS tachycardia with atrioventricular dissociation (n=1). Radiofrequency ablation was evaluated on Tachycardia inducibility. Radiofrequency ablation of the slow pathway of the AV node successfully eliminated the inducibility of a rare narrow QRS tachycardia with atrioventricular dissociation.
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