Atrial FibrillationHeart Conduction SystemCatheter AblationHeart AtriaNeural ConductionCore Binding Factor Alpha 2 SubunitVentricular FibrillationPulmonary VeinsElectric CountershockElectrocardiographyAtrial FlutterWarfarinElectrophysiologic Techniques, CardiacAnticoagulantsCardiac Pacing, ArtificialAtrial AppendageAmiodaroneAtrioventricular NodeRefractory Period, ElectrophysiologicalAtrial FunctionTreatment OutcomeTachycardia, ParoxysmalThromboembolismAtrial Function, LeftStrokeBody Surface Potential MappingRecurrenceAtrial Premature ComplexesPropafenoneFlecainideElectrocardiography, AmbulatoryArrhythmias, CardiacTime FactorsSotalolWolff-Parkinson-White SyndromeSick Sinus SyndromeHeart Blockbeta-AlanineRisk FactorsPacemaker, ArtificialProspective StudiesHeart RateOphiostomatalesTachycardiaEmbolismDogsCryosurgeryAction PotentialsEchocardiography, TransesophagealSinoatrial NodeTachycardia, SupraventricularAtrial Function, RightTachycardia, Ectopic AtrialBepridilElectrophysiologyArrhythmia, SinusDigoxinChronic DiseaseCardiac Surgical ProceduresBradycardiaHemorrhageRisk AssessmentEchocardiographyIncidenceRetrospective StudiesAtrial SeptumHeart FailurePericardiumProcainamideHeart DiseasesModels, CardiovascularAtrioventricular BlockPredictive Value of TestsPostoperative ComplicationsHeart Valve DiseasesMitral ValveDefibrillators, ImplantableTachycardia, VentricularDisopyramideHeart VentriclesAspirinCardiac Complexes, PrematureAtrial RemodelingHeartCerebrovascular DisordersFibrinolytic AgentsChi-Square DistributionPyridonesEndocardiumBenzimidazolesAdrenergic beta-AntagonistsCoronary SinusComorbidityCardiac ElectrophysiologyTachycardia, Atrioventricular Nodal ReentryAprindineMultivariate AnalysisSignal Processing, Computer-AssistedMitral Valve StenosisPrognosis