SympathectomyAtrial RemodelingCatheterization, Swan-GanzRenal ArteryDenervationHypertensionKidneyBlood PressureCatheter AblationCatheters, IndwellingSympathetic Nervous SystemGanglionectomyMuscle Denervation3-IodobenzylguanidineAutonomic DenervationThermodilutionPulmonary ArteryAutonomic Nervous System DiseasesCathetersCatheterization, PeripheralSympathectomy, ChemicalArteriesStellate GanglionEphedrineHypertension, PulmonaryIodobenzenesShy-Drager SyndromeHeartMonitoring, PhysiologicCardiac OutputHemodynamicsSympatholyticsCatheterizationNorepinephrineCerebral ArteriesAdrenergic FibersCatecholaminesPulmonary Wedge PressureHyperhidrosisHeart RateCatheterization, Central VenousMonitoring, IntraoperativeRegional Blood FlowDogsTime FactorsEmbolism, AirHypertension, RenalTyramineTreatment OutcomeHypertension, PortalCarotid ArteriesOxidopamineFemoral ArteryRadiopharmaceuticalsHypertension, RenovascularMesenteric ArteriesTachycardia, VentricularAntihypertensive AgentsProspective StudiesUmbilical ArteriesIodine RadioisotopesParasympathetic Nervous SystemIntensive CareVascular ResistanceInfusions, Intra-Arterial