P1549The adherence to 2016 ESC guidelines for CRT is associated with an improved outcome, when compared with 2013 guidelines. (20th June 2017) - Mazza, A.; Caico, SI.; D'onofrio, A.; Pepi, P.; De Simone, A.; Botto, GL.; Pecora, D.; Pieragnoli, P.; Ferraro, A.; Giovannini, T.; Magnano, V.; Mazzuero, A.; et al.