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Electrocardiogram and left ventricular (LV) function change post atrioventricular node ablation: QRS duration and LV ejection fraction at baseline and during various modalities of pacing are shown. BVP = biventricular pacing; CP = conventional pacing; CSP = conduction system pacing; HBP = His bundle pacing; LBBAP = left bundle branch area pacing; RVP = right ventricular pacing.
