The noncoronary sinus of Valsalva: At the cusp of correlating anatomy, physiology, and ablation success

Precordial double transition pattern with inferior lead discordance in the accessory pathway and ventricular arrhythmias: Do all roads lead to Rome?

“…One of the most distinctive ECG findings is that the QRS morphology on the 12-lead ECG during PVCs is very similar to that during spontaneous supraventricular rhythm with a perfect 12 out of 12 lead QRS similarities and axis direction, suggesting the origin of the para-Hisian region. 12 Many arrhythmias are ablated in the vicinity of the NCC and membranous septum including automatic atrial tachycardias, automatic septal annular right ventricular inflow, left ventricular inflow, outflow ventricular tachycardias, para-Hisian APs, and unusual variants of AV node reentry [12][13][14][15] ; and the presence of ILD seems associated with the para-Hisian region irrespective of the AP or PVC/VAs. 16 However, it should be kept in mind that the existing ECG algorithms currently do not take into account cardiac…”