Sympathectomy3-IodobenzylguanidineGanglionectomyAutonomic Nervous System DiseasesSympathetic Nervous SystemIodobenzenesArrhythmias, CardiacDenervationHeartTachycardia, VentricularIodine RadioisotopesMuscle DenervationAutonomic DenervationVentricular FibrillationElectrocardiographyStellate GanglionVentricular Premature ComplexesSympathectomy, ChemicalEphedrineDeath, Sudden, CardiacAnti-Arrhythmia AgentsShy-Drager SyndromeHeart RateDefibrillators, ImplantableElectrocardiography, AmbulatoryLong QT SyndromeCatheter AblationSympatholyticsMyocytes, CardiacAtrial RemodelingVentricular DysfunctionCatecholaminesHeart VentriclesCardiac Complexes, PrematureNorepinephrineBlood PressureDogsAdrenergic FibersTachycardiaHeart Conduction SystemMyocardiumArrhythmia, SinusHyperhidrosisTime FactorsRenal ArteryCardiac Pacing, ArtificialElectrophysiologic Techniques, CardiacTyramineAutonomic Nervous SystemMyocardial InfarctionHypertensionHemodynamicsParasympathetic Nervous SystemKidneyTreatment OutcomeOxidopamineRadiopharmaceuticalsDigitalis GlycosidesMyocardial IschemiaCardiomyopathiesAmiodaroneFlecainideCardiac OutputTetralogy of FallotElectric CountershockArrhythmogenic Right Ventricular DysplasiaAction PotentialsRats, Sprague-DawleyHeart ArrestFollow-Up StudiesHeart FailureCardiac Surgical ProceduresEchocardiographyRats, Inbred StrainsCardiomyopathy, DilatedEncainideDeath, SuddenRegional Blood FlowCerebral ArteriesSyncopeMexiletineTorsades de PointesThallium RadioisotopesStroke VolumeElectrophysiologyMyocardial ContractionHeart DiseasesParkinson DiseaseMyocardial Reperfusion InjuryNAV1.5 Voltage-Gated Sodium ChannelAtrial FibrillationVentricular Function, LeftAdrenergic beta-AntagonistsTachycardia, SupraventricularPropafenonePericardiumDisease Models, AnimalAconitineModels, CardiovascularHeart Block