Atrial FibrillationStrokeRisk FactorsCatheter AblationHeart AtriaVentricular FibrillationAnti-Arrhythmia AgentsPulmonary VeinsElectric CountershockWarfarinAnticoagulantsAtrial FlutterElectrocardiographyElectrophysiologic Techniques, CardiacAtrial AppendageAmiodaroneCardiac Pacing, ArtificialTreatment OutcomeHeart Conduction SystemFollow-Up StudiesProspective StudiesThromboembolismRecurrenceTime FactorsRefractory Period, ElectrophysiologicalAtrial Function, LeftTachycardia, ParoxysmalAtrial FunctionAtrial Premature ComplexesCerebrovascular DisordersElectrocardiography, AmbulatoryIncidencePropafenoneBrain Ischemiabeta-AlanineBody Surface Potential MappingRisk AssessmentSotalolRetrospective StudiesPacemaker, ArtificialEmbolismFlecainideInternational Normalized RatioAtrioventricular NodeSick Sinus SyndromeEchocardiography, TransesophagealHeart RatePredictive Value of TestsCohort StudiesCryosurgeryChronic DiseaseArrhythmias, CardiacWolff-Parkinson-White SyndromeHemorrhagePrevalenceAge FactorsMultivariate AnalysisFibrinolytic AgentsBepridilCardiac Surgical ProceduresPostoperative ComplicationsTachycardiaTachycardia, Ectopic AtrialCase-Control StudiesLogistic ModelsDogsDigoxinComorbidityEchocardiographyHeart DiseasesAspirinAtrial Function, RightArrhythmia, SinusHeart FailureTachycardia, SupraventricularPrognosisStroke VolumeHeart Valve DiseasesAtrial SeptumIschemic Attack, TransientProportional Hazards ModelsChi-Square DistributionSinoatrial NodeMitral ValveCerebral InfarctionBradycardiaDefibrillators, ImplantableHypertensionOdds RatioCerebral HemorrhagePericardiumCardiovascular DiseasesRegistriesSeverity of Illness IndexProcainamideIntracranial HemorrhagesSex FactorsRiskBenzimidazolesPyridones