Ductus Arteriosus, PatentDuctus ArteriosusTruncus Arteriosus, PersistentBlood VesselsInfant, NewbornInfant, PrematureIndomethacinTruncus ArteriosusInfant, Premature, DiseasesPulmonary ArterySeptal Occluder DeviceCardiac CatheterizationIbuprofenHeart MurmursHeart Defects, CongenitalEndarteritisLigationGestational AgeEchocardiography, Doppler, ColorFetusProstheses and ImplantsHeart Septal Defects, VentricularPregnancyPulmonary CirculationInfant, Very Low Birth WeightFetal HeartBlood Flow VelocityEchocardiography, DopplerAorta, ThoracicBalloon OcclusionAortographyAortic CoarctationSheepEmbolization, TherapeuticEchocardiographyBlood PressurePapio papioUltrasonography, PrenatalAbnormalities, MultipleCardiovascular Surgical ProceduresInfant, Extremely Low Birth WeightCardiovascular AgentsFetal DiseasesTreatment OutcomeAneurysmAortaRespiratory Distress Syndrome, NewbornPersistent Fetal Circulation SyndromeCyclooxygenase InhibitorsOxygenAnimals, NewbornBronchopulmonary DysplasiaAlprostadilHypertension, PulmonaryLower Extremity Deformities, CongenitalLymphatic VesselsCardiac Surgical ProceduresEisenmenger ComplexVasoconstrictionOliguriaIntensive Care Units, NeonatalRetinal VesselsHemodynamicsRetrospective StudiesEnterocolitis, NecrotizingMuscle, Smooth, VascularAngiocardiographyAlloysRecurrent Laryngeal Nerve InjuriesFollow-Up StudiesPulmonary Valve StenosisTime FactorsAngiographyTocolysisRegional Blood FlowHeart SeptumPhysiognomyPulmonary AtresiaAortic Arch SyndromesHeart Septal DefectsHeart Septal Defects, AtrialAnti-Inflammatory Agents, Non-SteroidalInfant, Low Birth WeightTetralogy of FallotEquipment DesignHypertensionVascular MalformationsTranscription Factor AP-2Endothelium, VascularPregnancy Trimester, ThirdProspective StudiesPulmonary ValveCatheterizationPapioVasodilationNeovascularization, PhysiologicUltrasonography, DopplerVascular ResistanceTocolytic AgentsSubclavian Artery