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Figure 1 Surface electrocardiogram and intracardiac electrograms depicting atrial fibrillation and pulmonary vein-left atrium (PV-LA) reconnection. Note the pulmonary vein electrograms with high frequency potentials on the circular mapping catheter reflecting recurrence of conduction at the PV-LA junction. ABL = ablation catheter electrograms; aVF = atrioventricular; CS = coronary sinus catheter electrograms; c/w = consistent with; hRA = high right atrium catheter electrograms; Ls = circular mapping catheter electrograms.
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