Atrial FibrillationCatheter AblationHeart AtriaVentricular FibrillationAnti-Arrhythmia AgentsPulmonary VeinsElectric CountershockWarfarinAtrial FlutterAnticoagulantsElectrocardiographyElectrophysiologic Techniques, CardiacAtrial AppendageAmiodaroneCardiac Pacing, ArtificialHeart Conduction SystemTreatment OutcomeThromboembolismStrokeRefractory Period, ElectrophysiologicalTachycardia, ParoxysmalAtrial FunctionAtrial Function, LeftRecurrenceAtrial Premature ComplexesFollow-Up StudiesPropafenoneElectrocardiography, AmbulatoryBody Surface Potential Mappingbeta-AlanineSotalolFlecainideRisk FactorsPacemaker, ArtificialProspective StudiesAtrioventricular NodeSick Sinus SyndromeTime FactorsInternational Normalized RatioEmbolismEchocardiography, TransesophagealHeart RateCryosurgeryWolff-Parkinson-White SyndromeArrhythmias, CardiacBepridilTachycardiaTachycardia, Ectopic AtrialDigoxinHemorrhageCardiac Surgical ProceduresChronic DiseaseAtrial Function, RightDogsRisk AssessmentArrhythmia, SinusTachycardia, SupraventricularIncidenceEchocardiographyRetrospective StudiesAtrial SeptumHeart FailureSinoatrial NodePredictive Value of TestsPostoperative ComplicationsHeart Valve DiseasesBradycardiaDefibrillators, ImplantableHeart DiseasesMitral ValveAspirinPericardiumProcainamideFibrinolytic AgentsAtrial RemodelingCerebrovascular DisordersElectrophysiologyPyridonesBenzimidazolesHeart BlockTachycardia, VentricularDisopyramideModels, CardiovascularChi-Square DistributionAdrenergic beta-AntagonistsComorbidityAction PotentialsMultivariate AnalysisAprindineMitral Valve StenosisCoronary Artery BypassPrognosisAutonomic DenervationCohort StudiesVitamin KAge FactorsCardiac Complexes, PrematureAdministration, OralRheumatic Heart DiseasePulmonary Veno-Occlusive Disease