Aortic Valve StenosisAortic ValveHeart ValvesHeart Valve ProsthesisHeart Valve Prosthesis ImplantationHeart Valve DiseasesCardiac CatheterizationBioprosthesisAortic Stenosis, SupravalvularMitral ValveAortic Valve InsufficiencySeverity of Illness IndexHeartEchocardiography, DopplerEchocardiographyCatheterizationAortic Stenosis, SubvalvularTreatment OutcomeBalloon ValvuloplastyProsthesis DesignMitral Valve StenosisCalcinosisStroke VolumeCarotid StenosisHemodynamicsMitral Valve InsufficiencyPulmonary ValveFollow-Up StudiesTricuspid ValveAngiodysplasiaPhonocardiographyVentricular Function, LeftMultidetector Computed TomographyPulmonary Valve StenosisVentricular Dysfunction, LeftEunuchismProspective StudiesCoronary StenosisHeart RateAsymptomatic DiseasesSpinal StenosisTime FactorsTracheal StenosisPredictive Value of TestsPostoperative ComplicationsRisk FactorsRetrospective StudiesEchocardiography, TransesophagealHypertrophy, Left VentricularBlood Flow VelocityRisk AssessmentHeart VentriclesConstriction, PathologicHeart Defects, CongenitalProsthesis FailurePyloric StenosisKaplan-Meier EstimateEndocarditis, BacterialVentricular RemodelingHeart FailurePatient SelectionMitral Valve ProlapseEndocarditisPrognosisHeart DiseasesExercise TestModels, CardiovascularTomography, X-Ray ComputedFeasibility StudiesVenous ValvesElectrocardiographyChi-Square DistributionTricuspid Valve InsufficiencyWilliams SyndromeDiscrete Subaortic StenosisHeart SoundsThromboembolismEchocardiography, Doppler, ColorSurvival AnalysisCardiac Surgical ProceduresBlood PressureAge FactorsTissue EngineeringRheumatic Heart DiseaseCardiac Valve AnnuloplastyFetal HeartFemoral ArteryStentsReoperationTricuspid Valve StenosisMyocardiumHeart MurmursMultivariate AnalysisStrokeCohort StudiesHeart TransplantationCoronary AngiographyEndocardial FibroelastosisEndocardiumAnticoagulants