ablationaccuracyadventafanticoagulationaprilatrialcareclosurecrtdetectiondurabilityeditionehrafebruaryfibrillationfieldicdissuelaaclbbapleadlessmarchnovemberoutcomespacemakerpacingpfapulsedpvirecurrencerisksafetyshockssignalsspecialstatementsvttavrtherapytrialsvtyear