Heart Defects, CongenitalHeart VentriclesBlalock-Taussig ProcedureFontan ProcedureNorwood ProceduresHeart Bypass, RightHeterotaxy SyndromeTricuspid AtresiaHypoplastic Left Heart SyndromePhysiologyVentricular FunctionInfant, NewbornPulmonary ArteryPulmonary CirculationCerebral VentriclesAbnormalities, MultipleCardiac CatheterizationVena Cava, SuperiorThird VentricleFourth VentricleHemodynamicsNorth AmericaCardiac Surgical ProceduresPalliative CareTreatment OutcomeLateral VentriclesPostoperative ComplicationsCerebral Ventricle NeoplasmsRetrospective StudiesTime FactorsFollow-Up StudiesProspective Studies