Echocardiography, TransesophagealEchocardiographyEchocardiography, DopplerEchocardiography, Three-DimensionalEchocardiography, Doppler, ColorMitral ValveEchocardiography, Doppler, PulsedEchocardiography, StressHeart Septal Defects, AtrialMitral Valve InsufficiencyHeart AtriaBlood Flow VelocityHeart DiseasesVentricular Function, LeftAtrial AppendageHeart Valve DiseasesCardiac CatheterizationHeart Valve ProsthesisAortic ValveDobutamineDiastoleVentricular Dysfunction, LeftEmbolismHeart VentriclesStroke VolumeAtrial Function, LeftHeart NeoplasmsAortic DiseasesAortic Valve InsufficiencyObserver VariationIntraoperative CareEsophagusPredictive Value of TestsSensitivity and SpecificityProspective StudiesThrombosisTricuspid Valve InsufficiencyMonitoring, IntraoperativeCardiac Surgical ProceduresSystoleHemodynamicsMitral Valve ProlapseTricuspid ValveAortic Valve StenosisCoronary CirculationHeart Valve Prosthesis ImplantationHeart SeptumChordae TendineaeForamen Ovale, PatentMitral Valve StenosisFeasibility StudiesMyocardial ContractionHeart Defects, CongenitalDoppler EffectElectrocardiographyAtrial FibrillationReproducibility of ResultsUltrasonography, DopplerPulmonary VeinsEndocarditisHeart Septal Defects, VentricularAorta, ThoracicIntraoperative PeriodHeart AneurysmVentricular Function, RightMyxomaSeptal Occluder DeviceEmbolism, ParadoxicalContrast MediaUltrasonography, Doppler, ColorEndocarditis, BacterialFollow-Up StudiesPulmonary ArteryExercise TestThermodilutionPulmonary Wedge PressureHeartCardiac OutputFetal HeartElectric CountershockTreatment OutcomeIntracranial EmbolismCoronary AngiographyVentricular DysfunctionThoraxAortic AneurysmCardiomyopathy, HypertrophicCatheterization, Swan-GanzHeart MurmursTime FactorsEvaluation Studies as TopicCardiotonic AgentsCoronary DiseaseHeart RuptureHeart FailureUltrasonography, Doppler, TranscranialThromboembolismUltrasonography, InterventionalCardiac VolumeMyocardial Ischemia