(a) Subgroup analysis of pacing dependence (Vp > 10%) in RBBB patients with prophylactic PPM. (b) Subgroup analysis of RBBB patients with no prophylactic PPM who required urgent PPM after TAVR. ECG data were available for 38 out of 43 TAVR patients with baseline RBBB and no prophylactic PPM who required PPM within 30 days after TAVR.
Abbreviations: ECG, electrocardiogram; PPM, permanent pacemaker; RBBB, right bundle branch block; TAVR, transcatheter aortic valve replacement; Vp, ventricular pacing.