IsomerismHeterotaxy SyndromeHeart Defects, CongenitalHeart AtriaHeart Septal DefectsSitus InversusAbnormalities, MultipleVenae CavaeDextrocardiaLevocardiaHeart Bypass, RightPulmonary VeinsErythrocruorinsPulmonary Veno-Occlusive DiseaseFetal HeartMyocytes, CardiacGrowth Differentiation Factor 1CyanosisAbortion, EugenicAtrioventricular NodeNodal ProteinFetal DiseasesCardiac OutputVena Cava, InferiorSinoatrial NodeFontan ProcedureHeart BlockHeart ValvesAzygos VeinTachycardia, SupraventricularHeartUltrasonography, PrenatalEchocardiographyMagnetic Resonance SpectroscopyAtrial AppendageHeart Septal Defects, AtrialArrhythmias, CardiacCardiac Surgical ProceduresInfant, NewbornProlineSyndromeDeath, Sudden, CardiacPrenatal DiagnosisStereoisomerismPregnancyBody PatterningModels, MolecularTime FactorsGestational AgeSupine PositionRetrospective StudiesTreatment OutcomeMolecular StructureAsiaCardiac Pacing, ArtificialCardiomegalyCardiac TamponadeProne PositionHeart DiseasesMyocardiumProtein ConformationCardiac CatheterizationMolecular Sequence DataFollow-Up StudiesMyocardial ContractionSpleenHeart VentriclesHeart ArrestStomachHeart FailureMyoblasts, CardiacCardiomyopathiesAmino Acid SequenceElectrocardiographyBase SequenceCardiac Imaging TechniquesCardiac MyosinsHeart RateCardiac GlycosidesHemodynamicsCardiac Output, LowOut-of-Hospital Cardiac ArrestMyocardial InfarctionCardiac VolumeVentricular RemodelingHeart TransplantationTroponin IVentricular Function, LeftPostureMutationBlood PressureStroke VolumeDogsCardiac Resynchronization TherapyHeart Function TestsTroponin THeart Conduction SystemCardiopulmonary ResuscitationHeart NeoplasmsCardiac Care Facilities