Atrial FlutterAtrial FibrillationCatheter AblationHeart AtriaAnti-Arrhythmia AgentsElectric CountershockElectrocardiographyElectrophysiologic Techniques, CardiacPulmonary VeinsCardiac Pacing, ArtificialHeart Conduction SystemVentricular FibrillationPropafenoneAmiodaroneTricuspid ValveBody Surface Potential MappingAnticoagulantsAtrial AppendageWarfarinAtrial FunctionProcainamideHeart BlockRefractory Period, ElectrophysiologicalPericarditisFlecainideTachycardia, ParoxysmalAtrial Premature ComplexesTreatment OutcomeAtrial Function, RightTachycardia, SupraventricularAtrial Function, LeftRecurrenceFollow-Up StudiesTachycardiaElectrocardiography, AmbulatoryThromboembolismCryosurgeryDisopyramideTachycardia, Ectopic AtrialAtrioventricular NodeSotalolSick Sinus SyndromeArrhythmias, CardiacProspective StudiesEchocardiography, TransesophagealPacemaker, ArtificialTime FactorsStrokeVena Cava, InferiorRisk FactorsElectrophysiologyDogsHeart RateDigoxinWolff-Parkinson-White SyndromeArrhythmia, SinusEmbolismCoronary SinusHeart DiseasesAtrial Septumbeta-AlanineEchocardiographyFluoroscopyCardiac Surgical ProceduresRetrospective StudiesPostoperative ComplicationsCardiac CathetersInternational Normalized RatioIncidenceChronic DiseaseSinoatrial NodeHydrops FetalisBundle of HisRisk AssessmentBepridilPredictive Value of TestsCardiac CatheterizationDefibrillators, ImplantableSurgery, Computer-AssistedMitral ValveHemorrhageTachycardia, Sinoatrial Nodal ReentryTachycardia, VentricularEquipment DesignEndocardiumTachycardia, Atrioventricular Nodal ReentryBradycardiaHeart FailureChi-Square DistributionAction PotentialsAtrioventricular BlockSulfonamidesButylscopolammonium BromidePericardiumHeart Valve DiseasesAspirinElectrodesFetal DiseasesVenae CavaeMultivariate Analysis