Echocardiography, TransesophagealStrokeForamen Ovale, PatentEchocardiographyHeart Septal Defects, AtrialEmbolism, ParadoxicalEchocardiography, Three-DimensionalEchocardiography, DopplerIntracranial EmbolismEchocardiography, Doppler, ColorSeptal Occluder DeviceBrain IschemiaIschemic Attack, TransientHeart AneurysmEchocardiography, StressAtrial AppendageStroke, LacunarCerebrovascular DisordersCardiac CatheterizationMitral ValveProspective StudiesRisk FactorsHeart DiseasesHeart AtriaEchocardiography, Doppler, PulsedMitral Valve InsufficiencyStroke VolumeCardiac Surgical ProceduresDobutamineFollow-Up StudiesTreatment OutcomeEmbolismRecurrenceProstheses and ImplantsHeart Valve DiseasesPredictive Value of TestsAnticoagulantsHeart Valve ProsthesisSecondary PreventionVentricular Function, LeftWarfarinEsophagusHeart NeoplasmsAortic ValveElectrocardiographyAortic DiseasesVentricular Dysfunction, LeftHeart VentriclesObserver VariationIntraoperative CareRetrospective StudiesAtrial FibrillationSensitivity and SpecificityNeuroimagingThrombosisAtrial Function, LeftMonitoring, IntraoperativeCerebral Arterial DiseasesMagnetic Resonance ImagingMitral Valve ProlapseAortic Valve InsufficiencyFeasibility StudiesTime FactorsBlood Flow VelocityCerebral InfarctionHeart Valve Prosthesis ImplantationHemodynamicsMigraine DisordersElectrocardiography, AmbulatoryHeart Defects, CongenitalReproducibility of ResultsChordae TendineaeHeart SeptumDiastoleCerebral HemorrhageAspirinSystoleAorta, ThoracicEndocarditisTomography, X-Ray ComputedCase-Control StudiesAge FactorsMyocardial ContractionSeverity of Illness IndexMitral Valve StenosisMyxomaAcute DiseaseIntraoperative PeriodPulmonary VeinsContrast MediaAortic Valve StenosisExercise TestPrevalenceTricuspid ValveEndocarditis, BacterialHeart Septal Defects, VentricularCoronary CirculationCoronary DiseaseThromboembolismCardiotonic Agents