PressureBlood PressureHydrostatic PressureBlood Pressure DeterminationQuality Indicators, Health CareHypertensionTransducers, PressureIntracranial PressureIntraocular PressureBlood Pressure Monitoring, AmbulatoryAir PressureAtmospheric PressureVenous PressureArterial PressureHeart RateVentricular PressureHemodynamicsCentral Venous PressurePulmonary Wedge PressureAntihypertensive AgentsTime FactorsOsmotic PressureSystoleVascular ResistanceHealth Status IndicatorsIndicators and ReagentsDogsPulseDiastoleManometryCerebrospinal Fluid PressureProspective StudiesPositive-Pressure RespirationCardiac OutputContinuous Positive Airway PressureRegional Blood FlowPortal PressureHypotensionBlood Flow VelocitySympathetic Nervous SystemAnalysis of VarianceFollow-Up StudiesKidneyReninRats, Inbred SHRPressoreceptorsRegression AnalysisTreatment OutcomeRats, Sprague-DawleyCross-Sectional StudiesOxygenReproducibility of ResultsReference ValuesLower Body Negative PressureMonitoring, PhysiologicHeartPostureCarbon DioxideArteriesRespirationBaroreflexBody WeightComplianceRespiratory MechanicsCircadian RhythmHydrocephalus, Normal PressureAge FactorsPredictive Value of TestsLinear ModelsAortaDose-Response Relationship, DrugModels, CardiovascularCardiovascular DiseasesDisease Models, AnimalPrognosisRetrospective StudiesNorepinephrineCardiovascular SystemCohort StudiesPerfusionPulsatile FlowTonometry, OcularBody Mass IndexReflexSphygmomanometersVentricular Function, LeftRats, WistarPulmonary ArteryBiological MarkersAngiotensin IIEquipment DesignBlood VolumeRats, Inbred WKYSex FactorsHypertension, RenalAnesthesiaTidal VolumeRespiration, ArtificialInfant, NewbornVasoconstriction