Heart Conduction SystemAtrioventricular NodeNeural ConductionHeartBundle of HisPurkinje FibersHeart BlockHeart FailureHeart RateSinoatrial NodeConnexinsElectrocardiographyMyocardiumAtrioventricular BlockArrhythmias, CardiacHeart AtriaHeart VentriclesT-Box Domain ProteinsHeterotaxy SyndromeHeart DiseasesVentricular FunctionHeart Defects, CongenitalWolff-Parkinson-White SyndromeSp4 Transcription FactorMyocytes, CardiacCardiac Pacing, ArtificialConnexin 43Action PotentialsCardiac ElectrophysiologyAcetylthiocholineElectrophysiologyGene Expression Regulation, DevelopmentalRefractory Period, ElectrophysiologicalTreatment FailureModels, CardiovascularGATA6 Transcription FactorDextrocardiaBundle-Branch BlockMyocardial ContractionThiolester HydrolasesCardiomyopathiesNAV1.5 Voltage-Gated Sodium ChannelTime FactorsHeart TransplantationLac OperonAnti-Arrhythmia AgentsCnidariaHeart SeptumAntigens, CD57Cardiomyopathy, DilatedLamin Type ADogsTachycardia, Atrioventricular Nodal ReentrySitus InversusTachycardiaElectrophysiological ProcessesUbiquitin ThiolesteraseDeath, Sudden, CardiacVectorcardiographyAporphinesBone ConductionMice, TransgenicTelemetrySodium ChannelsPacemaker, ArtificialFetal HeartPericardiumMedian NerveBradycardiaChick EmbryoHomeodomain ProteinsRabbitsDesminHeart ValvesElectrophysiologic Techniques, CardiacUlnar NerveCell LineageHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsDisease Models, AnimalBiological ClocksPeripheral NervesOrganogenesisNeurofilament ProteinsTranscription FactorsImmunohistochemistryCardiac Output, LowPhenotypeMice, KnockoutKidney Failure, ChronicTreatment OutcomeImage Processing, Computer-AssistedMutationAtrial FibrillationTibial NerveCatheter AblationHemodynamicsElectric StimulationGenetic Diseases, X-LinkedAxonsAtrial Flutter