Figure 1
A: Twelve-lead electrocardiograms during a ventricular arrhythmia and sinus rhythm. Note that the qrS pattern in V1 and abrupt R-wave transition in V3. B: Activation map of the ASC (upper panel). Local electrogram at the successful ablation site (lower panel). The tiny dull ventricular signal preceded the QRS onset by 28ms. C: A single RF application could eliminate the VA (upper panel). Ablation catheter position at the success site in LAO 55 ˚ and RAO 30 ˚ view (lower panel).
ABL = ablation catheter, LAO = left anterior oblique, RAO = right anterior oblique