Atrial FibrillationStrokeWarfarinAnticoagulantsCatheter AblationHeart AtriaVentricular FibrillationAnti-Arrhythmia AgentsPulmonary VeinsElectric CountershockAtrial Appendagebeta-AlanineAtrial FlutterElectrocardiographyRisk FactorsTreatment OutcomeCerebrovascular DisordersElectrophysiologic Techniques, CardiacThromboembolismSecondary PreventionAmiodaroneRecurrenceCardiac Pacing, ArtificialHeart Conduction SystemBrain IschemiaFollow-Up StudiesAspirinProspective StudiesPyridonesInternational Normalized RatioTime FactorsIschemic Attack, TransientFibrinolytic AgentsPlatelet Aggregation InhibitorsRefractory Period, ElectrophysiologicalTachycardia, ParoxysmalAtrial Function, LeftAtrial FunctionHemorrhageEmbolismBenzimidazolesAtrial Premature ComplexesIncidenceRisk AssessmentPropafenoneElectrocardiography, AmbulatoryRandomized Controlled Trials as TopicBody Surface Potential MappingSotalolFlecainidePacemaker, ArtificialPrimary PreventionRetrospective StudiesAtrioventricular NodeSick Sinus SyndromeEchocardiography, TransesophagealHeart RateHeart DiseasesCerebral InfarctionThiophenesCohort StudiesCerebral HemorrhageCryosurgeryComorbidityArrhythmias, CardiacWolff-Parkinson-White SyndromeChronic DiseaseVitamin KBepridilPredictive Value of TestsAge FactorsAdministration, OralTachycardiaBenzylaminesEndarterectomy, CarotidCardiac Surgical ProceduresTachycardia, Ectopic AtrialDogsDigoxinAustriaAtrial Function, RightEchocardiographyMultivariate AnalysisArrhythmia, SinusTachycardia, SupraventricularIntracranial EmbolismPostoperative ComplicationsPrevalenceAzetidinesHeart FailureUnited StatesHypertensionClinical Trials as TopicAtrial SeptumCost-Benefit AnalysisStroke VolumeRegistriesDefibrillators, ImplantableHeart Valve DiseasesSinoatrial Node