SympathectomyAtrial RemodelingDenervationRenal ArteryHypertensionKidneyCatheter AblationBlood PressureCatheters, IndwellingSympathetic Nervous SystemGanglionectomyMuscle Denervation3-IodobenzylguanidineAutonomic DenervationAutonomic Nervous System DiseasesCathetersSympathectomy, ChemicalStellate GanglionEphedrineHypertension, PulmonaryIodobenzenesShy-Drager SyndromeHeartSympatholyticsNorepinephrineAdrenergic FibersCatecholaminesHyperhidrosisHypertension, RenalTyramineHypertension, PortalHeart RateOxidopamineCatheterizationTime FactorsRadiopharmaceuticalsTachycardia, VentricularCatheterization, Central VenousAntihypertensive AgentsIodine RadioisotopesHypertension, RenovascularParasympathetic Nervous SystemDogs