Pulmonary ValvePulmonary Valve StenosisPulmonary Valve InsufficiencyAortic ValveTetralogy of FallotHeart Valve DiseasesMitral ValveCatheterizationPulmonary AtresiaTricuspid ValveAortic Valve StenosisAngioplasty, BalloonAnimals, Inbred StrainsVentricular Outflow ObstructionHeart Valve Prosthesis ImplantationBalloon ValvuloplastyBioprosthesisAortic Valve InsufficiencyHeart Valve ProsthesisCardiac CatheterizationCarcinoid Heart DiseaseHeart Septal Defects, VentricularBalloon OcclusionCardiac Valve AnnuloplastyHeart Defects, CongenitalEchocardiographyPulmonary ArteryPulmonary Subvalvular StenosisTricuspid Valve InsufficiencyMitral Valve StenosisMitral Valve InsufficiencyVentricular Function, RightCardiac Surgical ProceduresEndocarditisIntra-Aortic Balloon PumpingTreatment OutcomeHeart ValvesMitral Valve ProlapseProsthesis DesignTricuspid Valve StenosisGastric BalloonEndocarditis, BacterialEchocardiography, DopplerVenous ValvesNoonan SyndromeAngioplasty, Balloon, CoronaryFollow-Up StudiesFetal HeartReoperationVentricular Dysfunction, RightHeart VentriclesTricuspid AtresiaOligohydramniosProlapseInfant, NewbornHemodynamicsStentsEchocardiography, TransesophagealUltrasonography, PrenatalDilatationEchocardiography, Doppler, ColorHeart SeptumRetrospective StudiesTime FactorsHeart Septal DefectsFibromaVentricular SeptumAortic CoarctationHeart Septal Defects, AtrialPostoperative ComplicationsEndocarditis, Subacute BacterialFetal DiseasesTransposition of Great VesselsAbnormalities, MultipleDuctus ArteriosusHypertrophy, Right VentricularHeart NeoplasmsAngiographyMitral Valve AnnuloplastyEchocardiography, Three-DimensionalFeasibility StudiesFetoscopyPericardiumProspective StudiesBlood Flow VelocityAngioplasty, Balloon, Laser-AssistedSinus of ValsalvaElectrocardiographyJugular VeinsRecurrenceStroke Volume