Atrioventricular NodeHeart Conduction SystemNeural ConductionBundle of HisMyocardiumHeart BlockRefractory Period, ElectrophysiologicalAtrial FunctionCardiac Pacing, ArtificialElectrocardiographyHeart AtriaTachycardia, Atrioventricular Nodal ReentrySinoatrial NodeVentricular FunctionDogsAnti-Arrhythmia AgentsElectrophysiologyHeart RateCatheter AblationGuinea PigsHeartAction PotentialsAdenosineBone ConductionRabbitsMedian NerveArrhythmias, CardiacHeart VentriclesUlnar NerveMyocardial ContractionElectrophysiologic Techniques, CardiacMyocardial StunningPeripheral NervesAtrioventricular BlockTibial NerveAphasia, ConductionAtrial FlutterElectrodiagnosisAxonsMyocytes, CardiacElectric StimulationSural NervePurkinje FibersConnexin 43Wolff-Parkinson-White SyndromeModels, CardiovascularPeripheral Nervous System DiseasesTime FactorsNAV1.5 Voltage-Gated Sodium ChannelSciatic NerveMotor NeuronsPericardiumBody Surface Potential MappingMyocardial IschemiaDiabetic NeuropathiesAtrial FibrillationRanvier's NodesMyocardial InfarctionSodium ChannelsPeroneal NerveBundle-Branch BlockCarpal Tunnel SyndromeConnexinsGap JunctionsTachycardiaElectromyographyElectric ConductivityCoronary CirculationNerve Fibers, MyelinatedTachycardia, SupraventricularPolyneuropathiesNerve FibersCardiomyopathiesMyocardial Reperfusion InjuryNeurons, AfferentEvoked Potentials, SomatosensoryMyelin SheathFlecainideTachycardia, ParoxysmalVoltage-Sensitive Dye ImagingCardiac Complexes, PrematureLidocaineSpinal Nerve RootsCardiomyopathy, DilatedDisease Models, AnimalTachycardia, VentricularVentricular Function, LeftProcainamideDemyelinating DiseasesBradycardiaReaction TimeEchocardiographySick Sinus SyndromeCardiac ElectrophysiologyRats, Sprague-DawleyCatsElectrophysiological PhenomenaCardiotonic AgentsVentricular FibrillationMyocardial Reperfusion