Hypertension, PulmonaryHypertensionPulmonary ArteryHypertrophy, Right VentricularMonocrotalineBlood PressurePersistent Fetal Circulation SyndromeHypertension, PortalAntihypertensive AgentsHypertension, RenalChest PainPulmonary CirculationAnoxiaHypertension, RenovascularHemodynamicsVascular ResistanceHypertension, MalignantLungPulmonary EmbolismPulmonary Wedge PressureVentricular Function, RightIdiopathic Pulmonary FibrosisVasodilator AgentsIloprostSulfonesBone Morphogenetic Protein Receptors, Type IIVentricular Dysfunction, RightRisk FactorsEpoprostenolChronic DiseaseHypertension, Pregnancy-InducedEndarterectomyPurinesCardiac CatheterizationNitric OxideTreatment OutcomeDisease Models, AnimalEndothelin-1Ocular HypertensionPhosphodiesterase 5 InhibitorsRetrospective StudiesAdministration, InhalationTime FactorsFollow-Up StudiesProspective StudiesChest TubesRadiography, ThoracicIntracranial HypertensionBlood Pressure DeterminationPregnancy Complications, CardiovascularEchocardiographyRats, Inbred SHRReninPoisonsRats, Sprague-DawleyPrevalenceArterial PressureSeverity of Illness IndexEchocardiography, DopplerKidneyVasoconstrictionMuscle, Smooth, VascularPseudotumor CerebriRats, Inbred WKYPulmonary FibrosisReceptors, EndothelinScleroderma, SystemicPulmonary Veno-Occlusive DiseaseCyclic Nucleotide Phosphodiesterases, Type 5SystolePulmonary Heart DiseaseCardiac OutputScoliosisDesoxycorticosteronePiperazinesCase-Control StudiesPhosphodiesterase InhibitorsTomography, X-Ray ComputedAngiotensin IIRenin-Angiotensin SystemEndothelium, VascularHeart RateSodium Chloride, DietaryVasodilationBlood Pressure Monitoring, AmbulatoryNitric Oxide Synthase Type IIICohort StudiesHeart VentriclesArthritis, JuvenileThromboembolismThoracic WallDiureticsProstaglandins IPurpura, Thrombocytopenic, IdiopathicPrognosisTricuspid Valve Insufficiency