Aortic ValveMitral ValveHeartHeart Valve DiseasesAortic Valve StenosisHeart RatePulmonary ValveTricuspid ValveAortic Valve InsufficiencyMitral Valve InsufficiencyMitral Valve ProlapseMitral Valve StenosisVenous ValvesBioprosthesisHeart FailureHeart Defects, CongenitalHeart DiseasesTricuspid Valve InsufficiencyHeart TransplantationFetal HeartMitral Valve AnnuloplastyHeart AtriaEchocardiographyCardiac Valve AnnuloplastyEndocarditis, BacterialPulmonary Valve StenosisEndocarditisHeart ValvesCardiac CatheterizationTreatment OutcomeTime FactorsProsthesis DesignHeart BlockHemodynamicsEchocardiography, TransesophagealChordae TendineaeHeart Arrest, InducedMyocardiumCardiac Surgical ProceduresFollow-Up StudiesCalcinosisMyocardial ContractionEchocardiography, DopplerHeart Function TestsRisk FactorsIleocecal ValveVentricular Function, LeftProspective StudiesMyocardial IschemiaStroke VolumeCatheterizationHeart InjuriesRetrospective StudiesEchocardiography, Doppler, ColorHeart NeoplasmsPostoperative ComplicationsModels, CardiovascularProsthesis FailureMyocytes, CardiacReoperationCoronary DiseaseEchocardiography, Three-DimensionalAortic Valve ProlapsePhonocardiographyCardiomyopathiesHeart Septal Defects, VentricularHeart Septal DefectsHeart, ArtificialVentricular Dysfunction, LeftSeverity of Illness IndexCardiac Output, LowCardiomyopathy, DilatedMyocardial InfarctionCardiomegalyEndocardiumRisk AssessmentHeart Failure, SystolicCardiotonic AgentsPerfusionVentricular RemodelingHeart Rate, FetalDogsHeart ArrestPredictive Value of TestsChronic DiseaseHeart SeptumMyocardial Reperfusion InjuryHypoplastic Left Heart SyndromeCardiopulmonary BypassRheumatic Heart DiseaseSuture TechniquesDisease Models, AnimalAdrenergic beta-AntagonistsEndocardial CushionsSystoleCardiac Pacing, ArtificialHeart Septal Defects, AtrialHeart Valve ProsthesisDiastoleExercise Test