274Is Adaptive Cardiac Resynchronization Therapy impactful in patient activity? Insights from multicenter observational project. (19th March 2018) - Iacopino, S; Tomaselli, C; Rebellato, L; Capucci, A; Infusino, T; Ziacchi, M; Pisano', E; Zanotto, G; Tarricone, D; Vado, A; Padeletti, L; Boriani, G