Echocardiography, Three-DimensionalEchocardiography, TransesophagealEchocardiographyEchocardiography, StressMitral ValveDobutamineEchocardiography, DopplerSeptal Occluder DeviceMitral Valve InsufficiencyHeart Valve ProsthesisEchocardiography, Doppler, ColorCardiotonic AgentsHeart Septal Defects, AtrialEchocardiography, Doppler, PulsedExercise TestHeart DiseasesHeart AtriaVentricular Function, LeftDipyridamoleVentricular Dysfunction, LeftSensitivity and SpecificityAtrial AppendagePredictive Value of TestsHeart Valve DiseasesObserver VariationFeasibility StudiesStroke VolumeEmbolismCardiac CatheterizationHeart NeoplasmsAortic ValveHeart VentriclesMyocardial IschemiaElectrocardiographyAortic DiseasesProspective StudiesCoronary DiseaseCoronary AngiographyIntraoperative CareMyocardial ContractionThrombosisMitral Valve ProlapseEsophagusMonitoring, IntraoperativeCardiac Surgical ProceduresAtrial Function, LeftAortic Valve InsufficiencyHemodynamicsContrast MediaSystoleForamen Ovale, PatentDiastoleMitral Valve StenosisHeart Valve Prosthesis ImplantationReproducibility of ResultsEndocarditisFollow-Up StudiesHeart SeptumChordae TendineaeHeart Defects, CongenitalHeart AneurysmAortic Valve StenosisBlood Flow VelocityCoronary CirculationMyxomaAorta, ThoracicAtrial FibrillationMyocardial StunningIntraoperative PeriodAtropineMyocardial InfarctionHeartTricuspid ValveTricuspid Valve InsufficiencyEmbolism, ParadoxicalPrognosisEndocarditis, BacterialTissue SurvivalHeart Septal Defects, VentricularPulmonary VeinsTreatment OutcomeTomography, Emission-Computed, Single-PhotonTime FactorsElectric CountershockIntracranial EmbolismCoronary Artery DiseaseEvaluation Studies as TopicHypertrophy, Left VentricularAortic AneurysmThoraxRisk AssessmentChest PainSeverity of Illness IndexFetal HeartHeart RuptureVentricular Function, RightThromboembolismHeart FailureUltrasonography, InterventionalVasodilator Agents