Aortic Valve StenosisAortic ValveAortic Valve InsufficiencyPulmonary Valve StenosisHeart Valve Prosthesis ImplantationHeart Valve DiseasesMitral ValveHeart Valve ProsthesisMitral Valve StenosisBioprosthesisCalcinosisCardiac CatheterizationTricuspid Valve StenosisPulmonary ValveCatheterizationEchocardiographyTricuspid ValveEchocardiography, DopplerTreatment OutcomeProsthesis DesignSeverity of Illness IndexMitral Valve InsufficiencyEchocardiography, TransesophagealBloodless Medical and Surgical ProceduresCarotid StenosisBalloon ValvuloplastyHypoplastic Left Heart SyndromeHemodynamicsAngiodysplasiaMitral Valve ProlapseEchocardiography, Doppler, ColorFollow-Up StudiesVenous ValvesCoronary StenosisBlood Flow VelocityVentricular Function, LeftVentricular Outflow ObstructionProspective StudiesSpinal StenosisHeart VentriclesTime FactorsEndocarditis, BacterialAortic Valve ProlapseRetrospective StudiesTracheal StenosisAortaHeart Defects, CongenitalVentricular Dysfunction, LeftCardiac Valve AnnuloplastyStroke VolumeRisk FactorsTricuspid Valve InsufficiencyEndocarditisPulmonary Subvalvular StenosisPredictive Value of TestsObserver VariationRisk AssessmentPhonocardiographyMitral Valve AnnuloplastyConstriction, PathologicDisease ProgressionPyloric StenosisRheumatic Heart DiseaseEchocardiography, Three-DimensionalDiscrete Subaortic StenosisDiastoleInfant, NewbornHypertrophy, Left VentricularAortic AneurysmAortic CoarctationBlood PressureReproducibility of ResultsReoperationPostoperative ComplicationsHeart Septal Defects, VentricularNoonan SyndromeAortic Stenosis, SubvalvularCardiac Surgical ProceduresProsthesis FailureThoracotomyTomography, X-Ray ComputedFeasibility StudiesChordae TendineaeDilatation, PathologicMultidetector Computed Tomography