Fast–slow atrioventricular nodal re‐entrant tachycardia incorporating superior and inferolateral left atrial slow pathways

Abstract

BackgroundA 70‐year‐old man revealed a rare type of atrioventricular nodal re‐entrant tachycardia (AVNRT) involving distinct retrograde pathways, superior slow pathway, and inferolateral left atrial slow pathway.ResultRadiofrequency ablation was successfully performed on the noncoronary cusp and in the left atrium, respectively, to eliminate the tachycardias.Discussion and ConclusionDue to the anomalous electrical conduction patterns, careful diagnosis and ablation strategies were necessary to avoid the risk of atrioventricular block. These findings underscore the diversity and complexity of AVNRT and highlight the importance of tailored therapeutic approaches.