Atrial FlutterFlecainideCatheter AblationHeart Conduction SystemAnti-Arrhythmia AgentsNeural ConductionAtrial FibrillationElectrocardiographyPropafenoneTricuspid ValveDisopyramideHeart BlockHeart AtriaElectrophysiologic Techniques, CardiacCardiac Pacing, ArtificialTachycardia, SupraventricularPericarditisProcainamideElectric CountershockBody Surface Potential MappingAtrioventricular NodeRefractory Period, ElectrophysiologicalArrhythmias, CardiacTachycardiaAtrial FunctionAtrial Function, RightAmiodaroneElectrophysiologyVena Cava, InferiorSotalolHydrops FetalisTachycardia, ParoxysmalAtrial Premature ComplexesTachycardia, Ectopic AtrialDogsCryosurgeryTreatment OutcomePulmonary VeinsTachycardia, Atrioventricular Nodal ReentryEncainideRecurrenceNAV1.5 Voltage-Gated Sodium ChannelDigoxinQuinidineAction PotentialsFollow-Up StudiesCoronary SinusWolff-Parkinson-White SyndromeTachycardia, VentricularSick Sinus SyndromeSodium ChannelsFetal DiseasesSodium Channel BlockersFluoroscopyTime FactorsElectrocardiography, AmbulatoryTachycardia, Sinoatrial Nodal ReentryAtrial Function, LeftCardiac CathetersButylscopolammonium BromideProspective StudiesLidocaineAtrioventricular BlockHeart RateVenae CavaeCardiac Complexes, PrematureEchocardiography, TransesophagealHeart DiseasesAtrial AppendageCardiac CatheterizationEdrophoniumBundle of HisHeartMexiletineArrhythmia, SinusAtrial SeptumEndocardiumSinoatrial NodeElectric StimulationHeart Defects, CongenitalPostoperative ComplicationsAjmalineEchocardiographyBone ConductionVoltage-Gated Sodium Channel BlockersRetrospective StudiesSulfonamidesDysgeusiaBrugada SyndromeHeart VentriclesMedian NerveCross CirculationSurgery, Computer-AssistedAzygos VeinPacemaker, ArtificialPhenothiazinesElectrodesEquipment DesignInfusions, IntravenousHeart Septal Defects, Atrial