CapillariesPulmonary Wedge PressurePulmonary CirculationHemangioma, CapillaryElectrophoresis, CapillaryPulmonary Diffusing CapacityPulmonary EdemaCapillary ResistanceHemodynamicsCapillary PermeabilityBlood-Air BarrierLungCapillary FragilityCardiac OutputExtravascular Lung WaterVascular ResistanceCapillary ActionHeart FailurePulmonary Gas ExchangeCatheterization, Swan-GanzBlood VolumeHypertension, PulmonaryPulmonary AlveoliBlood PressurePulmonary ArteryDogsCardiac CatheterizationStroke VolumeShock, SurgicalCentral Venous PressureRespiratory Distress Syndrome, AdultMicrocirculationVentricular Function, LeftBlood Gas AnalysisVentricular PressureTransfer FactorCarbon MonoxideTotal Lung CapacityCapillary ElectrochromatographyIndicator Dilution TechniquesEchocardiography, Doppler, PulsedEchocardiography, DopplerAtrial Natriuretic FactorLung Volume MeasurementsOxygenDiastoleCapillary Leak SyndromeNatriuretic Peptide, BrainPlasma SubstitutesBlood Flow VelocityOxygen ConsumptionThermodilutionWeightlessnessLung ComplianceAtrial FunctionHeart RateEchocardiographyTime FactorsPerfusionPhysical ExertionHeart-Assist DevicesHydrostatic PressureIsotonic SolutionsArterial PressureExercise TestRespiration, ArtificialHeart Function TestsMitral ValveEndothelium, VascularPressureVentilation-Perfusion RatioRespiratory Function TestsVentricular Dysfunction, LeftCarbon DioxideAnoxiaRegional Blood FlowVasodilator AgentsEchocardiography, Doppler, ColorMicroscopy, ElectronHematocritRespirationRestReproducibility of ResultsRetinal VesselsHydroxyethyl Starch DerivativesSystoleCardiac Pacing, ArtificialLung DiseasesAcute DiseaseMitral Valve InsufficiencyAnalysis of VarianceComplianceInfusions, IntravenousCardiomyopathy, DilatedVentricular Dysfunction, RightHeart VentriclesVentricular Function, RightFluid TherapyPulmonary VeinsNitroglycerin