Atrioventricular NodeHeart Conduction SystemBundle of HisTachycardia, Atrioventricular Nodal ReentryCatheter AblationHeart BlockSinoatrial NodeElectrocardiographyCardiac Pacing, ArtificialArrhythmias, CardiacNeural ConductionElectrophysiologic Techniques, CardiacNAV1.5 Voltage-Gated Sodium ChannelTachycardia, ParoxysmalHeart AtriaPurkinje FibersWolff-Parkinson-White SyndromeTachycardia, SupraventricularTachycardiaLymph NodesHeartAtrioventricular BlockMyocytes, CardiacCardiac ElectrophysiologyConnexinsAtrial FibrillationHeart VentriclesAction PotentialsMyocardiumAnti-Arrhythmia AgentsElectrophysiologyPacemaker, ArtificialModels, CardiovascularTachycardia, Ectopic JunctionalAtrial FunctionSinus Arrest, CardiacSodium ChannelsElectrocoagulationAblation TechniquesRefractory Period, ElectrophysiologicalDogsHeart RateAtrial FlutterSick Sinus SyndromeHeart SeptumTachycardia, Ectopic AtrialConnexin 43Death, Sudden, CardiacBrugada SyndromeTime FactorsBody Surface Potential MappingKearns-Sayre SyndromeMyotonic DystrophyRabbitsBradycardiaVagus NerveRadio WavesSp4 Transcription FactorUltimobranchial BodyFollow-Up StudiesTreatment OutcomeBundle-Branch BlockHeart DiseasesCardiac OutputTricuspid ValveGap JunctionsT-Box Domain ProteinsHeart NeoplasmsMice, TransgenicVentricular FunctionCardiomyopathy, DilatedElectric StimulationMicroelectrodesCardiac Surgical ProceduresMuscle ProteinsMuscular Dystrophy, Emery-DreifussMutationLymph Node ExcisionGene Expression Regulation, DevelopmentalPhenotypePulmonary VeinsDisease Models, AnimalLamin Type ALong QT SyndromeRetrospective StudiesMice, KnockoutLac OperonAdenosineRanvier's NodesSentinel Lymph Node BiopsyMembrane PotentialsPedigreeAtropine