Heart Conduction SystemNeural ConductionHeartHeart RateHeart BlockAtrioventricular NodeHeart FailureHeart AtriaHeart DiseasesHeart Defects, CongenitalHeart TransplantationAction PotentialsCardiac Pacing, ArtificialElectrocardiographyBone ConductionMedian NerveFetal HeartArrhythmias, CardiacTime FactorsMyocardiumRefractory Period, ElectrophysiologicalSleep DisordersElectrophysiologic Techniques, CardiacAtrioventricular BlockHeart ValvesUlnar NerveDogsPeripheral NervesSinoatrial NodeElectrophysiologyMyocytes, CardiacModels, CardiovascularMyocardial ContractionPurkinje FibersTibial NerveElectric StimulationAxonsAtrial FunctionAphasia, ConductionAtrial FlutterElectrodiagnosisCatheter AblationSural NervePeripheral Nervous System DiseasesAtrial FibrillationAnti-Arrhythmia AgentsConnexin 43NAV1.5 Voltage-Gated Sodium ChannelWolff-Parkinson-White SyndromeTachycardiaDiabetic NeuropathiesMotor NeuronsSciatic NerveSodium ChannelsHeart Function TestsElectromyographyHeart SeptumPeroneal NerveMyocardial IschemiaTachycardia, Atrioventricular Nodal ReentryRanvier's NodesHemodynamicsBundle-Branch BlockHeart Arrest, InducedCardiomyopathy, DilatedConnexinsHeart VentriclesCarpal Tunnel SyndromeEndocardiumDisease Models, AnimalCardiomyopathiesBody Surface Potential MappingFollow-Up StudiesTachycardia, SupraventricularNerve Fibers, MyelinatedPerfusionTreatment OutcomeVentricular Function, LeftGap JunctionsRats, Sprague-DawleyCoronary DiseasePolyneuropathiesRisk FactorsProspective StudiesEchocardiographyNerve FibersRabbitsElectric ConductivityNeurons, AfferentMyocardial InfarctionRats, WistarTachycardia, VentricularEvoked Potentials, SomatosensoryCardiac Complexes, PrematureCardiomegalyTachycardia, ParoxysmalLidocaineVoltage-Sensitive Dye ImagingMyelin SheathReaction Time