Pulmonary ValveTetralogy of FallotPulmonary Valve StenosisPulmonary AtresiaPulmonary Valve InsufficiencyTricuspid AtresiaUltrasonography, PrenatalAbnormalities, MultipleAortic ValveFetal DiseasesHeart Valve DiseasesMitral ValveTricuspid ValvePregnancyAnimals, Inbred StrainsAortic Valve StenosisVentricular Outflow ObstructionBioprosthesisHeart Valve Prosthesis ImplantationAortic Valve InsufficiencyCatheterizationHeart Valve ProsthesisCarcinoid Heart DiseaseCardiac CatheterizationHeart Septal Defects, VentricularCardiac Valve AnnuloplastyBalloon ValvuloplastyHeart Defects, CongenitalEchocardiographyPulmonary Subvalvular StenosisTricuspid Valve InsufficiencyPulmonary ArteryMitral Valve InsufficiencyVentricular Function, RightCardiac Surgical ProceduresEndocarditisHeart ValvesMitral Valve ProlapseEndocarditis, BacterialVenous ValvesMitral Valve StenosisProsthesis DesignEchocardiography, DopplerNoonan SyndromeTricuspid Valve StenosisFetal HeartTreatment OutcomeVentricular Dysfunction, RightOligohydramniosHeart VentriclesProlapseReoperationFollow-Up StudiesInfant, NewbornEchocardiography, Doppler, ColorFibromaEchocardiography, Transesophageal