Pulmonary ValvePulmonary Valve StenosisPulmonary Valve InsufficiencyAortic ValveAortic Valve StenosisTetralogy of FallotHeart Valve DiseasesMitral ValvePulmonary AtresiaTricuspid ValveCarotid StenosisHeart Valve Prosthesis ImplantationVentricular Outflow ObstructionAnimals, Inbred StrainsBioprosthesisMitral Valve StenosisCatheterizationAortic Valve InsufficiencyHeart Valve ProsthesisCardiac CatheterizationCoronary StenosisCarcinoid Heart DiseaseSpinal StenosisHeart Septal Defects, VentricularEchocardiographyHeart Defects, CongenitalPulmonary Subvalvular StenosisTracheal StenosisCardiac Valve AnnuloplastyBalloon ValvuloplastyPulmonary ArteryTricuspid Valve InsufficiencyMitral Valve InsufficiencyTricuspid Valve StenosisVentricular Function, RightCardiac Surgical ProceduresTreatment OutcomePyloric StenosisEndocarditisConstriction, PathologicEchocardiography, DopplerHeart ValvesMitral Valve ProlapseProsthesis DesignFollow-Up StudiesEndocarditis, BacterialNoonan SyndromeVenous ValvesReoperationHemodynamicsHeart VentriclesFetal HeartVentricular Dysfunction, RightStentsRetrospective StudiesTricuspid AtresiaProlapseInfant, NewbornOligohydramniosEchocardiography, Doppler, ColorAngiographyBlood Flow VelocityPostoperative ComplicationsEchocardiography, TransesophagealUltrasonography, PrenatalAngioplasty, BalloonTime FactorsHeart Septal DefectsHeart SeptumFibromaProspective StudiesAbnormalities, MultipleAortic Stenosis, SubvalvularRenal Artery ObstructionVentricular SeptumFetal DiseasesEndocarditis, Subacute BacterialHeart NeoplasmsHeart Septal Defects, AtrialDuctus ArteriosusHypertrophy, Right VentricularMitral Valve AnnuloplastyDilatationEchocardiography, Three-DimensionalTransposition of Great VesselsPericardiumAortic Stenosis, SupravalvularCalcinosisCoronary AngiographyAortic CoarctationFeasibility StudiesUltrasonography, Doppler, DuplexElectrocardiographySeverity of Illness IndexSinus of ValsalvaCarotid Artery, InternalJugular VeinsStroke VolumeFetoscopyEndarterectomy, Carotid