“…Novel three‐dimensional (3D) mapping systems, such as Ensite NavX (St. Jude Medical, St. Paul, MN, USA), CARTO (Biosense Webster, Diamond Bar, CA, USA), and LocaLisa (Medtronic, Minneapolis, MN, USA), have been developed and implemented in electrophysiological procedure to guide the navigation of catheters inside the heart and to reduce radiation exposure . However, to date there have been few reports on the use of 3D mapping systems for the implantation of cardiac pacemakers, only described in single case reports or in case series for reducing radiation exposure . Recently, Colella et al.…”