Echocardiography, TransesophagealEchocardiographyHeart AtriaThrombosisHeart DiseasesMitral Valve StenosisEchocardiography, Three-DimensionalEchocardiography, DopplerAtrial FibrillationAtrial AppendageElectric CountershockEchocardiography, Doppler, ColorAtrial Function, LeftThromboembolismMitral ValveEmbolismAnticoagulantsOxyquinolineEchocardiography, StressCoronary ThrombosisWarfarinThrombectomyMyxomaHeart Septal Defects, AtrialAtrial FlutterEsophagusMitral Valve InsufficiencyEchocardiography, Doppler, PulsedPulmonary EmbolismCardiac CatheterizationCardiac Surgical ProceduresDobutamineHeart VentriclesPredictive Value of TestsProspective StudiesVentricular Function, LeftHeart NeoplasmsHeart Valve DiseasesCatheterizationHeart Valve ProsthesisVentricular Dysfunction, LeftMyocytes, CardiacHeartCardiac OutputAortic ValveTreatment OutcomeCatheter AblationAortic DiseasesStroke VolumeElectrocardiographyIntraoperative CareObserver VariationSensitivity and SpecificityMyocardial ContractionHeart Defects, CongenitalHemodynamicsRisk FactorsAortic Valve InsufficiencyMonitoring, IntraoperativeMitral Valve ProlapseFeasibility StudiesHeart Valve Prosthesis ImplantationBlood Flow VelocityHeart SeptumForamen Ovale, PatentDiastoleCardiac TamponadeMyocardial InfarctionHeart AneurysmChordae TendineaeEndocarditisCoronary CirculationAorta, ThoracicTime FactorsContrast MediaCardiotonic AgentsSystoleArrhythmias, CardiacCoronary AngiographyCardiomyopathiesCardiac Pacing, ArtificialCardiac VolumeTricuspid ValveFollow-Up StudiesPulmonary VeinsIntraoperative PeriodExercise TestReproducibility of ResultsMyocardiumFetal HeartHeart FailureAortic Valve StenosisEndocarditis, BacterialHeart Septal Defects, VentricularSeptal Occluder DeviceEmbolism, ParadoxicalTricuspid Valve InsufficiencyCoronary DiseaseMyocardial IschemiaUltrasonography, Interventional