Atrial FlutterAtrial FibrillationCatheter AblationHeart AtriaAnti-Arrhythmia AgentsElectric CountershockElectrocardiographyElectrophysiologic Techniques, CardiacPulmonary VeinsCardiac Pacing, ArtificialHeart Conduction SystemVentricular FibrillationPropafenoneAmiodaroneTricuspid ValveAnticoagulantsBody Surface Potential MappingWarfarinAtrial AppendageAtrial FunctionTreatment OutcomeProcainamideHeart BlockRefractory Period, ElectrophysiologicalPericarditisFlecainideTachycardia, ParoxysmalAtrial Premature ComplexesAtrial Function, RightTachycardia, SupraventricularRecurrenceFollow-Up StudiesAtrial Function, LeftTachycardiaThromboembolismElectrocardiography, AmbulatoryCryosurgeryDisopyramideTachycardia, Ectopic AtrialAtrioventricular NodeProspective StudiesSotalolSick Sinus SyndromeArrhythmias, CardiacTime FactorsEchocardiography, TransesophagealPacemaker, ArtificialStrokeRisk FactorsVena Cava, InferiorDogsHeart RateElectrophysiologyDigoxinRetrospective StudiesWolff-Parkinson-White SyndromeEmbolismArrhythmia, SinusPostoperative ComplicationsHeart DiseasesCoronary SinusEchocardiographybeta-AlanineAtrial SeptumCardiac Surgical ProceduresFluoroscopyCardiac CathetersInternational Normalized RatioChronic DiseaseIncidenceRisk AssessmentHydrops FetalisSinoatrial NodeBundle of HisPredictive Value of TestsBepridilCardiac CatheterizationHemorrhageDefibrillators, ImplantableSurgery, Computer-AssistedMitral ValveTachycardia, Sinoatrial Nodal ReentryEquipment DesignTachycardia, VentricularHeart FailureEndocardiumChi-Square DistributionDisease ManagementBradycardiaTachycardia, Atrioventricular Nodal ReentryAtrioventricular BlockAction PotentialsSulfonamidesHeart Valve DiseasesPericardiumButylscopolammonium BromidePrognosisAspirinFetal DiseasesMultivariate Analysis