P6647Ventricular pacing percentage and atrial fibrillation risk in dual chamber cardiac implantable devices. (28th August 2018) - Landolina, M; Gasparini, M; Capucci, A; Pieragnoli, P; Botto, G L; Biffi, M; Ziacchi, M; Lunati, M; Rordorf, R; Proclemer, A; Grammatico, A; Boriani, G