Heart Defects, CongenitalHeart SeptumHeartHeart RateSeptum of BrainFetal HeartHeart FailureHeart DiseasesVentricular SeptumAtrial SeptumCyanosisSeptum PellucidumHeart TransplantationHeart BlockNasal SeptumHeart Septal DefectsHeart ValvesInfant, NewbornHeart Septal Defects, VentricularHeart AtriaCardiac Surgical ProceduresTetralogy of FallotHeart Septal Defects, AtrialEchocardiographyMyocardiumHeart Arrest, InducedTransposition of Great VesselsHeterotaxy SyndromeAbnormalities, MultipleHeart Function TestsHemodynamicsMyocardial ContractionPulmonary AtresiaUltrasonography, PrenatalHypoplastic Left Heart SyndromeTime FactorsMyocytes, CardiacRetrospective StudiesRisk FactorsPulmonary ArteryEisenmenger ComplexCardiac CatheterizationProspective StudiesCardiomyopathiesTreatment OutcomeFollow-Up StudiesFetal DiseasesEndocardial Cushion DefectsPregnancyMyocardial IschemiaPulmonary Valve StenosisVentricular Function, LeftDuctus Arteriosus, PatentCardiomyopathy, DilatedCardiovascular AbnormalitiesStroke VolumeRheumatic Heart DiseaseHeart Rate, FetalCoronary DiseasePulmonary CirculationCardiac Pacing, ArtificialCardiomegalyGestational AgeDown SyndromeNeonatal ScreeningDouble Outlet Right VentricleHypertension, PulmonaryCardiologyDextrocardiaHeart VentriclesCardiac Output, LowEndocardiumCardiopulmonary BypassTruncus Arteriosus, PersistentEchocardiography, Four-DimensionalPrenatal DiagnosisPerfusionVentricular Dysfunction, LeftMyocardial InfarctionAortic CoarctationHeart, ArtificialHeart InjuriesHeart Valve ProsthesisHeart Failure, SystolicEbstein AnomalyCardiac Care FacilitiesPostoperative ComplicationsEchocardiography, DopplerPregnancy Complications, CardiovascularCardiotonic AgentsExercise TestPredictive Value of TestsCohort StudiesOxygen ConsumptionSyndromeDogsOximetryPulmonary ValveNatriuretic Peptide, BrainEchocardiography, Three-Dimensional