Pulmonary ArteryHypertension, PulmonaryPulmonary Wedge PressureLypressinEchocardiography, DopplerMitral Valve StenosisBlood PressureEchocardiographyPulmonary CirculationPressureHemodynamicsArteriesVascular ResistanceCardiac CatheterizationVentricular Function, RightCatheterization, Swan-GanzCardiac OutputArterial PressureAnoxiaTricuspid Valve InsufficiencyBlood Pressure DeterminationPulmonary EdemaVentricular Dysfunction, RightLungAltitude SicknessVasodilator AgentsPulmonary EmbolismHypertrophy, Right VentricularVasoconstrictionMonocrotalineDogsEpoprostenolAntihypertensive AgentsRenal ArteryFemoral ArteryIloprostDuctus Arteriosus, PatentCarotid ArteriesAdministration, InhalationDuctus ArteriosusMonitoring, PhysiologicOxygenTreatment OutcomeNitric OxidePulmonary Gas ExchangeTime FactorsExercise TestMesenteric ArteriesHeart Septal Defects, VentricularAltitudeHeart RateRadial ArteryCentral Venous PressureHydrostatic PressureSulfonesEmbolism, AirHeart Defects, CongenitalCerebral ArteriesVasodilationBlood Gas AnalysisSystolePulmonary Heart DiseasePulmonary VeinsMuscle, Smooth, VascularProspective StudiesHeart Septal Defects, AtrialVentricular PressureCatheterizationRespiratory Function TestsLung TransplantationHeart VentriclesChronic DiseaseHeart FailureScleroderma, SystemicBasilar ArteryFontan ProcedureBlood Flow VelocitySheepPurinesFollow-Up StudiesRetrospective StudiesDye Dilution TechniqueBrachial ArteryLung Diseases, ObstructiveCoronary Artery BypassSeverity of Illness IndexEndothelin-1SwineEndothelium, VascularNitroglycerinAngiographyStroke VolumeHypertensionThermodilutionMountaineeringVasoconstrictor AgentsHypertension, PortalVentricular Function, LeftRegional Blood FlowEisenmenger Complex