1. Emergency Department, ASST Papa Giovanni XXIII, Piazza OMS, 1- 24127- Bergamo, Italy
2. Arrhythmia and Electrophysiology Center, IRCCS Multimedica Group, Via Milanese, 300, 20099 - Sesto San Giovanni, Italy
3. ACHD Unit—Pediatric and Adult Congenital Heart centre, IRCCS-Policlinico San Donato, Via Morandi, 30, 20097 - San Donato Milanese, Italy