Atrial Function, LeftAtrial FunctionEchocardiographyAtrial Function, RightHeart AtriaHypertrophy, Left VentricularEchocardiography, DopplerVentricular Function, LeftHeart VentriclesCardiac VolumeStroke VolumeAtrial FibrillationVentricular Dysfunction, LeftEchocardiography, Doppler, PulsedElectrocardiographyEchocardiography, TransesophagealElectric CountershockMyocardial ContractionPericardiectomyHypertensionHeart Function TestsBlood PressurePredictive Value of TestsProspective StudiesObserver VariationHemodynamicsVentricular FunctionBlood Flow VelocityEchocardiography, Doppler, ColorMitral ValveMultivariate AnalysisVentricular Function, RightCohort StudiesRisk FactorsEchocardiography, Three-DimensionalDiastoleVentricular Dysfunction, RightSystoleMitral Valve InsufficiencyMitral Valve ProlapseMitral Valve StenosisCardiac CatheterizationHeart SeptumAortic ValveHeart DiseasesHeart FailureHeart Valve DiseasesVentricular RemodelingHeart Defects, CongenitalAortic Valve InsufficiencyTricuspid Valve InsufficiencyHeart Septal Defects, VentricularCardiomyopathiesTricuspid ValveAortic Valve StenosisCardiomyopathy, HypertrophicFollow-Up StudiesTreatment OutcomeHeartCardiomyopathy, DilatedHeart Valve ProsthesisHeart Septal Defects, AtrialCardiac Pacing, ArtificialReproducibility of ResultsTime FactorsHeart NeoplasmsRheumatic Heart DiseaseFetal HeartPulmonary ArteryHuman RightsMyocardiumHypertension, PulmonaryNatriuretic Peptide, BrainHeart Valve Prosthesis ImplantationPericardial EffusionMyocardial InfarctionRetrospective StudiesPulmonary ValveMyxomaSensitivity and SpecificityHeart ValvesPrognosisSeverity of Illness IndexCardiac Surgical ProceduresVentricular SeptumDobutamineHypertrophy, Right VentricularCardiac Resynchronization TherapyEchocardiography, StressFeasibility StudiesAngiocardiographyExercise TestVentricular PressureEndocardiumCatheterizationEbstein AnomalyVentricular Outflow ObstructionHeart AneurysmAortic CoarctationTetralogy of Fallot