Pulmonary CirculationAortaPulmonary ArteryHypertension, PulmonaryAorta, ThoracicBlood CirculationLungVascular ResistanceAnoxiaDuctus ArteriosusAorta, AbdominalPulmonary Heart DiseaseVasoconstrictionHemodynamicsPulmonary VeinsHypertrophy, Right VentricularAtrial PressureBlood PressureNitric OxideVasodilationCardiac OutputCapillary ResistanceSheepVentricular Function, RightPersistent Fetal Circulation SyndromeAnatomy, RegionalVasodilator AgentsPulmonary Gas ExchangeDogsPerfusionModels, CardiovascularExtracorporeal CirculationPulmonary Wedge PressureBlood Flow Velocity15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidCardiac CatheterizationBronchial ArteriesPulmonary EdemaMuscle, Smooth, VascularEndothelium, VascularRegional Blood FlowPhysiologyFetusOsteoarthropathy, Secondary HypertrophicVasoconstrictor AgentsVentricular Dysfunction, RightEndothelin-1Administration, InhalationPulsatile FlowVenous PressureOxygenSynchrotronsCardiography, ImpedanceRespirationPulmonary Valve StenosisNitric Oxide SynthaseCapillariesMonocrotalineHeart Defects, CongenitalAnimals, NewbornDuctus Arteriosus, PatentNitroarginineRats, Sprague-DawleyTime FactorsPulmonary AlveoliNitric Oxide Synthase Type IIIPulmonary EmbolismRabbitsAdrenomedullinBlood VesselsProstaglandin Endoperoxides, SyntheticEpoprostenolCollateral CirculationAngiographyChronic DiseaseHeart VentriclesCyclic GMPNitroprussideArteriovenous FistulaEndothelinsMicrocirculationSwineInfant, NewbornReceptors, EndothelinHeartBlood Gas AnalysisBlood VolumeLung DiseasesPregnancyAortic DiseasesDose-Response Relationship, DrugRats, WistarHeart RateEnterohepatic CirculationPressureNG-Nitroarginine Methyl EsterAortic CoarctationAcetylcholineCoronary CirculationDisease Models, Animal