Atrioventricular NodeHeart Conduction SystemBundle of HisTachycardia, Atrioventricular Nodal ReentryHeart BlockSinoatrial NodeElectrocardiographyCardiac Pacing, ArtificialNeural ConductionArrhythmias, CardiacCatheter AblationElectrophysiologic Techniques, CardiacNAV1.5 Voltage-Gated Sodium ChannelTachycardia, ParoxysmalPurkinje FibersHeart AtriaTachycardiaLymph NodesWolff-Parkinson-White SyndromeHeartMyocytes, CardiacAtrioventricular BlockConnexinsTachycardia, SupraventricularCardiac ElectrophysiologyHeart VentriclesAction PotentialsMyocardiumAnti-Arrhythmia AgentsElectrophysiologyModels, CardiovascularPacemaker, ArtificialAtrial FibrillationAtrial FunctionTachycardia, Ectopic JunctionalSodium ChannelsSinus Arrest, CardiacRefractory Period, ElectrophysiologicalDogsHeart RateAtrial FlutterSick Sinus SyndromeElectrocoagulationConnexin 43Death, Sudden, CardiacBrugada SyndromeHeart SeptumKearns-Sayre SyndromeMyotonic DystrophyRabbitsBradycardiaTachycardia, Ectopic AtrialTime FactorsVagus NerveSp4 Transcription FactorUltimobranchial BodyBody Surface Potential MappingRadio WavesBundle-Branch BlockHeart DiseasesCardiac OutputGap JunctionsFollow-Up StudiesHeart NeoplasmsT-Box Domain ProteinsVentricular FunctionTricuspid ValveMicroelectrodesCardiomyopathy, DilatedElectric StimulationMice, TransgenicTreatment OutcomeMuscular Dystrophy, Emery-DreifussMuscle ProteinsLymph Node ExcisionCardiac Surgical ProceduresMutationGene Expression Regulation, DevelopmentalLamin Type APhenotypeLong QT SyndromeLac OperonRanvier's NodesSentinel Lymph Node BiopsyDisease Models, AnimalAdenosineMembrane PotentialsPedigreeAtropine