Catheterization, Swan-GanzDenervationCatheters, IndwellingMuscle DenervationThermodilutionCathetersCatheterization, PeripheralPulmonary ArteryArteriesMonitoring, PhysiologicAutonomic DenervationCardiac OutputCatheterizationCatheterization, Central VenousSympathectomyMonitoring, IntraoperativePulmonary Wedge PressureEmbolism, AirHemodynamicsRenal ArteryCarotid ArteriesBlood PressureFemoral ArteryCerebral ArteriesUmbilical ArteriesMesenteric ArteriesIntensive CareInfusions, Intra-ArterialJugular VeinsCritical IllnessBasilar ArteryDogsCardiac Surgical ProceduresCritical CareProspective StudiesPostoperative CareTime FactorsIliac ArteryCardiac CatheterizationRadial ArteryRegional Blood FlowCoronary Artery BypassVertebral ArteryTreatment OutcomeCentral Venous CathetersCardiac CathetersMammary ArteriesVascular ResistanceHeart RateCarotid Artery, InternalSubclavian ArterySuctionUrinary CatheterizationEchocardiography, TransesophagealPulmonary CirculationOximetryBlood Gas AnalysisCarotid Artery DiseasesCoronary VesselsBrachial ArteryForearmHepatic ArteryParasympathectomySplenic ArteryEquipment FailureUrinary CathetersCarotid Artery, CommonSympathetic Nervous SystemAnesthesia, GeneralBlood Pressure DeterminationRespiration, ArtificialFluid TherapyIntensive Care UnitsCeliac ArteryEquipment DesignOxygenCatheter-Related InfectionsMesenteric Artery, SuperiorOphthalmic ArteryReproducibility of ResultsStroke VolumeSympathectomy, ChemicalRenal Artery ObstructionMiddle Cerebral ArteryBronchial ArteriesThoracic ArteriesMuscular AtrophyCoronary AngiographyCarbon DioxideTemporal ArteriesPopliteal ArteryGanglionectomyNorepinephrineHeart FailureUlnar ArteryAngiographyVasodilationRats, Sprague-DawleyBlood Flow VelocityVasoconstriction