Atrial FibrillationCatheter AblationHeart AtriaVentricular FibrillationAnti-Arrhythmia AgentsPulmonary VeinsElectric CountershockWarfarinAtrial FlutterAnticoagulantsIncidenceElectrocardiographyElectrophysiologic Techniques, CardiacAtrial AppendageAmiodaroneCardiac Pacing, ArtificialHeart Conduction SystemTreatment OutcomeThromboembolismStrokeRefractory Period, ElectrophysiologicalFollow-Up StudiesTachycardia, ParoxysmalAtrial FunctionAtrial Function, LeftRecurrenceRisk FactorsAtrial Premature ComplexesPropafenoneElectrocardiography, AmbulatoryProspective StudiesTime FactorsBody Surface Potential Mappingbeta-AlanineSotalolFlecainidePacemaker, ArtificialAtrioventricular NodeSick Sinus SyndromeInternational Normalized RatioEmbolismEchocardiography, TransesophagealHeart RateCryosurgeryArrhythmias, CardiacRetrospective StudiesWolff-Parkinson-White SyndromeRisk AssessmentBepridilTachycardiaHemorrhageTachycardia, Ectopic AtrialChronic DiseaseCardiac Surgical ProceduresDigoxinDogsAtrial Function, RightPostoperative ComplicationsArrhythmia, SinusTachycardia, SupraventricularEchocardiographyHeart FailurePredictive Value of TestsAtrial SeptumSinoatrial NodeHeart Valve DiseasesHeart DiseasesBradycardiaDefibrillators, ImplantableMitral ValveAspirinCohort StudiesPericardiumCerebrovascular DisordersProcainamideFibrinolytic AgentsChi-Square DistributionComorbidityAtrial RemodelingMultivariate AnalysisPrognosisElectrophysiologyHeart BlockTachycardia, VentricularPyridonesBenzimidazolesPrevalenceRegistriesDisopyramideAdrenergic beta-AntagonistsModels, CardiovascularProportional Hazards ModelsAction PotentialsCoronary Artery BypassAdministration, OralAprindineMitral Valve StenosisLogistic ModelsVitamin KAutonomic Denervation