Hypoplastic Left Heart SyndromeAortic ValveHeart Septal Defects, AtrialHeart Septal DefectsHeart Septal Defects, VentricularNorwood ProceduresHeart Defects, CongenitalHeartFetal HeartPalliative CareFontan ProcedureCardiac Surgical ProceduresInfant, NewbornHeart Bypass, RightPulmonary ArteryFetal TherapiesAortic CoarctationHeart SeptumHeart VentriclesUltrasonography, PrenatalHeart RateHeart Bypass, LeftCardiac CatheterizationEchocardiographyCardiovascular Surgical ProceduresEndocardial FibroelastosisPulmonary CirculationVentricular Function, RightBlalock-Taussig ProcedureHeart TransplantationAnastomosis, SurgicalTransposition of Great VesselsEchocardiography, Doppler, ColorAortic Valve StenosisAbnormalities, MultiplePulmonary VeinsTreatment OutcomeCatheterizationSeptal Occluder DeviceHeart FailureAorta, ThoracicPrenatal DiagnosisPregnancyHeart AtriaGestational AgeHemodynamicsVascular FistulaRetrospective StudiesDuctus Arteriosus, PatentDuctus ArteriosusCoronary Vessel AnomaliesHeart DiseasesFetal DiseasesEchocardiography, DopplerCardiopulmonary BypassMitral ValveSyndromeTime FactorsFollow-Up StudiesPostoperative PeriodPostoperative ComplicationsAortaFatal OutcomeVentricular Function, LeftAtrial SeptumPregnancy OutcomeEchocardiography, TransesophagealHeart ValvesBlood Flow VelocityProspective StudiesVentricular Dysfunction, LeftAortopulmonary Septal DefectBalloon OcclusionRisk FactorsSurvival RateHeart InjuriesHeart BlockVentricular Outflow ObstructionTetralogy of FallotProstheses and ImplantsTricuspid Valve