Arrhythmias, CardiacAtrial FlutterAtrial FibrillationHeart AtriaArrhythmia, SinusTachycardia, Ectopic AtrialElectrocardiographyCatheter AblationAnti-Arrhythmia AgentsHeart Conduction SystemTachycardia, SupraventricularElectrophysiologic Techniques, CardiacTachycardia, SinusTachycardiaPropafenoneAtrial FunctionCardiac Pacing, ArtificialSick Sinus SyndromePulmonary VeinsBody Surface Potential MappingPacemaker, ArtificialElectrocardiography, AmbulatoryTachycardia, VentricularElectric CountershockAtrial RemodelingSinoatrial NodeAtrial Premature ComplexesCardiac ElectrophysiologyBradycardiaMagnetocardiographyFlecainideSinoatrial BlockStellate GanglionDogsAtrial AppendageHeart Septal Defects, AtrialDisopyramideHeart RateHeart BlockVentricular FibrillationSotalolRefractory Period, ElectrophysiologicalQuinidineHeartFollow-Up StudiesAction PotentialsVentricular Premature ComplexesAtrioventricular NodeTreatment OutcomeTime FactorsPericardiumElectrophysiologyRecurrenceMyocardiumAutonomic Nervous SystemModels, CardiovascularMyocytes, CardiacHeart Defects, CongenitalCardiac Complexes, PrematurePostoperative ComplicationsDeath, Sudden, CardiacEchocardiographyLong QT SyndromeCardiac Surgical ProceduresRetrospective StudiesHeart DiseasesCardiac CatheterizationDefibrillators, ImplantableProspective StudiesHeart VentriclesHeart TransplantationRisk FactorsChi-Square DistributionEchocardiography, TransesophagealDisease Models, AnimalIncidenceVentricular DysfunctionTorsades de PointesNAV1.5 Voltage-Gated Sodium ChannelReoperationEquipment DesignAmiodaroneDigitalis GlycosidesMyocardial IschemiaMice, TransgenicClinical ProtocolsAconitineMyocardial InfarctionDeath, SuddenMyocardial Reperfusion InjuryEther-A-Go-Go Potassium ChannelsAge FactorsEncainideVoltage-Sensitive Dye ImagingTelemetrySyncopeCardiomyopathiesTetralogy of FallotSodium ChannelsProcainamide