Pulmonary Valve StenosisPulmonary ValveMitral ValveAortic Valve StenosisBalloon ValvuloplastyPulmonary Valve InsufficiencyAortic ValveCatheterizationPulmonary Subvalvular StenosisMitral Valve StenosisNoonan SyndromeMitral Valve ProlapseMitral Valve InsufficiencyHeart Valve DiseasesHeart Defects, CongenitalHeart Valve Prosthesis ImplantationTricuspid Valve StenosisHeart Valve ProsthesisTricuspid ValveMitral Valve AnnuloplastyAortic Valve InsufficiencyBioprosthesisTetralogy of FallotInfant, NewbornEchocardiographyCardiac CatheterizationVentricular Outflow ObstructionChordae TendineaePulmonary AtresiaEchocardiography, DopplerEchocardiography, TransesophagealCardiac Valve AnnuloplastyTreatment OutcomeCarotid StenosisCardiac Surgical ProceduresCalcinosisTricuspid Valve InsufficiencyHeart Septal Defects, VentricularRheumatic Heart DiseaseEchocardiography, Three-DimensionalEchocardiography, Doppler, ColorAnimals, Inbred StrainsEndocarditisProsthesis DesignFollow-Up StudiesEndocarditis, BacterialHemodynamicsVenous ValvesPhonocardiographyHeart VentriclesCoronary StenosisCarcinoid Heart DiseaseSpinal StenosisReoperationSeverity of Illness IndexHeart ValvesPulmonary ArteryRetrospective StudiesProlapseTracheal Stenosis