Heart Septal DefectsHeart Septal Defects, VentricularDiscrete Subaortic StenosisHeart Septal Defects, AtrialHeart ValvesTricuspid ValveAortic Stenosis, SubvalvularMitral ValveHeart Defects, CongenitalAortic ValveEndocardial Cushion DefectsHeart Valve DiseasesEchocardiographyHeartTricuspid Valve InsufficiencyHeart SeptumAortic Valve StenosisFetal HeartTransposition of Great VesselsEndocardial CushionsAortic Valve InsufficiencyAortopulmonary Septal DefectHeart VentriclesFontan ProcedureMitral Valve InsufficiencyEbstein AnomalyCardiac Surgical ProceduresHeart AtriaPulmonary Subvalvular StenosisVentricular Outflow ObstructionEchocardiography, Doppler, ColorSeptal Occluder DeviceCardiac CatheterizationPulmonary ValveCardiomyopathy, HypertrophicInfant, NewbornUltrasonography, PrenatalEchocardiography, TransesophagealAngiocardiographyHeart RateEchocardiography, Four-DimensionalPulmonary Valve StenosisHypoplastic Left Heart SyndromeAortic CoarctationEndomyocardial FibrosisFollow-Up StudiesHemodynamicsTetralogy of FallotFetal DiseasesTime FactorsRetrospective StudiesMitral Valve ProlapseTreatment OutcomePregnancyMitral Valve StenosisHeart AneurysmAortic Arch SyndromesGestational AgeCardiac Valve AnnuloplastyBalloon OcclusionAtrial SeptumProstheses and ImplantsVenous ValvesHeart FailureEchocardiography, DopplerHeart InjuriesBioprosthesisHeart DiseasesPulmonary AtresiaReoperationSinus of ValsalvaPostoperative ComplicationsAortic Stenosis, SupravalvularKinetocardiographyAbnormalities, MultipleProsthesis ImplantationBlood Flow VelocityPulmonary ArteryBrachiocephalic VeinsHeart BlockCardiovascular Surgical ProceduresAmyl NitriteEchocardiography, Three-DimensionalProsthesis DesignVentricular Septal RuptureEndocarditis, BacterialHeart TransplantationTruncus Arteriosus, PersistentDouble Outlet Right VentricleCardiopulmonary BypassHeart MurmursEndocarditisMitral Valve AnnuloplastyAortaHeart Arrest, InducedDuctus Arteriosus, PatentElectrocardiographyAortic Valve ProlapseCyanosisCardiovascular Abnormalities