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-AlanineSotalolRisk FactorsFlecainidePacemaker, ArtificialTime FactorsProspective StudiesAtrioventricular NodeSick Sinus SyndromeInternational Normalized RatioEmbolismHeart RateEchocardiography, TransesophagealCryosurgeryArrhythmias, CardiacWolff-Parkinson-White SyndromeBepridilTachycardiaTachycardia, Ectopic AtrialDogsDigoxinHemorrhageChronic DiseaseCardiac Surgical ProceduresAtrial Function, RightRisk AssessmentArrhythmia, SinusRetrospective StudiesIncidenceTachycardia, SupraventricularEchocardiographyAtrial SeptumSinoatrial NodeHeart FailurePredictive Value of TestsPostoperative ComplicationsHeart Valve DiseasesBradycardiaDefibrillators, ImplantableHeart DiseasesMitral ValveAspirinPericardiumProcainamideAction PotentialsElectrophysiologyFibrinolytic AgentsAtrial RemodelingCerebrovascular DisordersModels, CardiovascularPyridonesBenzimidazolesHeart BlockChi-Square DistributionTachycardia, VentricularDisopyramideAdrenergic beta-AntagonistsComorbidityMultivariate AnalysisAge FactorsAprindineCardiac Complexes, PrematurePrognosisCohort StudiesMitral Valve StenosisCoronary Artery BypassAutonomic DenervationAdministration, OralVitamin KRheumatic Heart DiseaseSignal Processing, Computer-Assisted