PMC9702059_01
(A) Electrocardiogram at admission with visible atrial fibrillation with a ventricular rate of 150 bpm. (B) Electrocardiogram after atrioventricular node ablation and His bundle pacing. (C) Position of pacing leads and ablation catheter during fluoroscopy with visible intra-aortic balloon pump in the background. HBP, His bundle pacing; RV, right ventricle.
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F1
A 12-lead ECG revealed AF with a ventricular rate of around 150 bpm (Figure 1). Non-selective HBP was achieved with a stable pacing threshold of 2.25 V at 1 ms (Figure 1).
PMC9702059_02
(A) Electrocardiogram at admission with visible atrial fibrillation with a ventricular rate of 175 bpm. (B) Electrocardiogram after atrioventricular node ablation and His bundle pacing. (C) Position of pacing leads during fluoroscopy with visible ECMO cannula in the background. HBP, His bundle pacing; RV, right ventricle; ECMO, extracorporeal membrane oxygenation.
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F2
The electrocardiogram showed AF with a rapid ventricular rate of 175 bpm (Figure 2). A return to sinus rhythm and significant improvement of cardiac function was expected, atrial and RV backup leads were also inserted and connected to the atrio-biventricular device (Figure 2).