Sympathectomy3-IodobenzylguanidineGanglionectomyTarsiidaeAnatomic VariationAutonomic PathwaysAutonomic Nervous System DiseasesSympathetic Nervous SystemHeartIodobenzenesDenervationStellate GanglionTachycardia, VentricularIodine RadioisotopesMuscle DenervationAutonomic DenervationSympathectomy, ChemicalEphedrineMyocytes, CardiacHeart RateShy-Drager SyndromeProcaineBlood PressureDogsVagus NerveGAP-43 ProteinSympatholyticsAutonomic Nervous SystemAtrial RemodelingAdrenergic FibersCardiac OutputNorepinephrineCatecholaminesEndocrine GlandsHyperhidrosisSciatic NerveRenal ArteryPericardiumReflexArrhythmias, CardiacCardiac Surgical ProceduresTyramineHeart Rate, FetalMyocardiumKidneyDeath, Sudden, CardiacCatsPeripheral NervesHypertensionCatheter AblationParasympathetic Nervous SystemOxidopamineTime FactorsNerve FibersRadiopharmaceuticalsHemodynamicsPhenylephrineNerve RegenerationOptic NerveRats, Sprague-DawleyLong QT SyndromeDisease Models, AnimalRegional Blood FlowRats, Inbred StrainsCardiac Pacing, ArtificialCerebral ArteriesCardiomegalyThallium RadioisotopesCardiac TamponadeTreatment OutcomeHeart DiseasesParkinson DiseaseCardiac CatheterizationMyocardial ContractionNerve EndingsHeart VentriclesNerve BlockNerve CrushHeart ArrestTibial NerveFacial NerveCarbon RadioisotopesPeripheral Nerve InjuriesMedian Nerve