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 HeartEchocardiography, DopplerAorta, ThoracicBalloon OcclusionAortographyAortic CoarctationSheepEmbolization, TherapeuticEchocardiographyPapio papioUltrasonography, PrenatalAbnormalities, MultipleBlood Flow VelocityCardiovascular Surgical ProceduresInfant, Extremely Low Birth WeightCardiovascular AgentsFetal DiseasesAneurysmRespiratory Distress Syndrome, NewbornPersistent Fetal Circulation SyndromeCyclooxygenase InhibitorsTreatment OutcomeAnimals, NewbornBronchopulmonary DysplasiaAlprostadilHypertension, PulmonaryAortaLower Extremity Deformities, CongenitalLymphatic VesselsCardiac Surgical ProceduresOxygenEisenmenger ComplexVasoconstrictionOliguriaIntensive Care Units, NeonatalRetinal VesselsEnterocolitis, NecrotizingMuscle, Smooth, VascularAngiocardiographyAlloysRecurrent Laryngeal Nerve InjuriesPulmonary Valve StenosisAngiographyTocolysisHeart SeptumPhysiognomyPulmonary AtresiaAortic Arch SyndromesHeart Septal DefectsHeart Septal Defects, AtrialRetrospective StudiesAnti-Inflammatory Agents, Non-SteroidalInfant, Low Birth WeightTetralogy of FallotEquipment DesignHemodynamicsVascular MalformationsTranscription Factor AP-2Follow-Up StudiesPregnancy Trimester, ThirdPulmonary ValveCatheterizationPapioVasodilationNeovascularization, PhysiologicUltrasonography, DopplerVascular ResistanceTocolytic AgentsSubclavian ArteryThoracotomyUpper Extremity Deformities, CongenitalHyaline Membrane DiseaseNeovascularization, PathologicRegional Blood FlowTime Factors