Selective slow pathway radiofrequency catheter ablation successfully eliminated eccentric retrograde left-sided activation and prevented the reinduction of AVNRT.
Case Report (n=1)
No
Eccentric retrograde left-sided atrial inputs in AVNRT consist partially of a slow pathway and can be successfully eliminated with slow pathway ablation.
We describe a patient with supraventricular tachycardia with triple atrioventricular (AV) node pathway physiology. A discontinuous curve was present in the antegrade AV nodal function curves. During right ventricular pacing, the earliest retrograde atrial activation was recorded at the left-sided coronary sinus electrode. The retrograde ventricular-atrial interval was long and had decremental conduction. We induced a slow-slow AV node reentrant tachycardia (AVNRT) with eccentric retrograde left-sided activation. After slow pathway ablation, dual AV nodal pathway physiology was present. AVNRT with eccentric retrograde left-sided activation is relatively rare, and our findings suggest that eccentric retrograde left-sided atrial inputs consist partially of a slow pathway and disappear with slow pathway ablation.
Sakabe et al. (Sat,) conducted a case report in Atrioventricular node reentrant tachycardia (AVNRT) (n=1). Radiofrequency catheter ablation was evaluated on Elimination of eccentric retrograde left-sided activation and prevention of AVNRT reinduction. Selective slow pathway radiofrequency catheter ablation successfully eliminated eccentric retrograde left-sided activation and prevented the reinduction of AVNRT.