* Systemic ventricle systolic function was assessed by biplane Simpson’s method in patients with a systemic LV and using fractional area change in patients with a systemic right ventricle.
+ Final sheath with which the lead was implanted.
CHD: congenital heart disease; EF: ejection fraction; HBP: his bundle pacing; CSP: conduction system pacing; LBBAP: left bundle branch area pacing; ToF: tetralogy of Fallot; D-TGA: D-transposition of the great arteries; VSD: ventricular septal defect; RV: right ventricle; cc-TGA: congenitally corrected transposition of the great arteries; ASD: Atrial septal defect; NA: not assessed; PM: pacemaker; Endo: endocardial; Epi: epicardial.