Heart Defects, CongenitalHeart Septal DefectsHeart Septal Defects, VentricularHeart Septal Defects, AtrialHeartCyanosisHeart DiseasesHeart RateTetralogy of FallotInfant, NewbornFetal HeartCardiac Surgical ProceduresTransposition of Great VesselsCardiac CatheterizationSeptal Occluder DeviceEchocardiographyHeart FailureHeterotaxy SyndromeAbnormalities, MultipleEisenmenger ComplexPulmonary AtresiaHeart BlockHeart SeptumPulmonary Valve StenosisHeart ValvesPulmonary ArteryRisk FactorsHeart TransplantationRetrospective StudiesCoronary DiseaseFollow-Up StudiesDuctus Arteriosus, PatentHeart AtriaTreatment OutcomeDouble Outlet Right VentricleDextrocardiaRheumatic Heart DiseaseProspective StudiesUltrasonography, PrenatalEndocardial Cushion DefectsAortic CoarctationEchocardiography, TransesophagealAtrial SeptumHypertension, PulmonaryCardiovascular AbnormalitiesCardiovascular Surgical ProceduresPulmonary CirculationEbstein AnomalyFetal DiseasesTime FactorsPregnancyEchocardiography, Doppler, ColorTruncus Arteriosus, PersistentHemodynamicsHeart VentriclesPregnancy Complications, CardiovascularMyocardiumAortopulmonary Septal DefectDown SyndromeEchocardiography, Three-DimensionalCardiopulmonary BypassMyocardial IschemiaHeart Valve DiseasesEchocardiography, Four-DimensionalTricuspid ValvePulmonary ValvePostoperative ComplicationsHypoplastic Left Heart SyndromeNeonatal ScreeningCardiologyHeart MurmursSitus InversusBalloon OcclusionPrenatal DiagnosisDiGeorge SyndromeFontan ProcedureCardiac Care FacilitiesCohort StudiesProstheses and ImplantsSyndromeHeart InjuriesGestational AgeAge FactorsPulmonary Subvalvular StenosisCardiomyopathiesPrevalenceAngiocardiographyVentricular Outflow ObstructionPredictive Value of TestsSeverity of Illness IndexElectrocardiographyRisk AssessmentEchocardiography, DopplerHeart Function TestsOximetryArrhythmias, CardiacIncidenceCase-Control StudiesHeart Arrest, InducedHeart Aneurysm