PMC10347413_01
A pulsed field ablation catheter was positioned within the superior vena cava, revealing the disorganized electrical activity. The intracardiac electrocardiogram was recorded at a speed of 100 mm/s.
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F1
The circular pulsed field ablation catheter was then placed within the superior vena cava, revealing some brief fractionated potentials and a local atrial fibrillation cycle length shorter than that in the coronary sinus (Figure 1).
The atrial fibrillation terminated after the pulsed field ablation catheter discharged at the superior vena cava. The electrocardiogram was recorded at a speed of 100 mm/s.
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F2
The atrial fibrillation terminated after a pulsed field ablation catheter discharge at the superior vena cava (biphasic, 1,400 V) (Figure 2).
The left atrial voltage map pre- (A) and post- (B) pulsed field ablation.
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F3
The left atrial voltage map pre- and post-pulsed field ablation is shown in Figure 3.