Aortic Valve StenosisHeart Valve Prosthesis ImplantationAortic ValveCardiac CatheterizationHeart Valve ProsthesisAortic Stenosis, SupravalvularSeverity of Illness IndexBioprosthesisAortic Stenosis, SubvalvularEchocardiography, DopplerAortic Valve InsufficiencyCatheterizationEchocardiographyCarotid StenosisTreatment OutcomeBalloon ValvuloplastyStroke VolumeHemodynamicsAngiodysplasiaEunuchismCalcinosisFollow-Up StudiesProsthesis DesignCoronary StenosisPhonocardiographyAsymptomatic DiseasesVentricular Function, LeftSpinal StenosisVentricular Dysfunction, LeftMultidetector Computed TomographyPulmonary Valve StenosisProspective StudiesTracheal StenosisMitral Valve StenosisHypertrophy, Left VentricularPredictive Value of TestsConstriction, PathologicBlood Flow VelocityPyloric StenosisHeart VentriclesRetrospective StudiesRisk AssessmentRisk FactorsPostoperative ComplicationsKaplan-Meier EstimateTime FactorsMitral Valve InsufficiencyPatient SelectionVentricular RemodelingEchocardiography, TransesophagealPrognosisExercise TestWilliams SyndromeTomography, X-Ray ComputedElectrocardiographyChi-Square DistributionDiscrete Subaortic StenosisFeasibility StudiesBlood PressureSurvival AnalysisTricuspid Valve StenosisHeart Valve DiseasesFemoral ArteryMultivariate AnalysisProsthesis FailureCoronary AngiographyStrokeRenal Artery ObstructionStentsHeart MurmursAge FactorsEndocardial FibroelastosisAngiographyAngioplasty, BalloonRegistriesMitral Valve