Heart VentriclesMyocardiumHeartHeart RatePostoperative ComplicationsCerebral VentriclesThird VentricleFourth VentricleHeart FailureLateral VentriclesHeart Defects, CongenitalHeart DiseasesCerebral Ventricle NeoplasmsTreatment OutcomeHeart TransplantationFetal HeartHeart AtriaRetrospective StudiesTime FactorsIntraoperative ComplicationsMyocardial ContractionHeart ValvesFollow-Up StudiesVentricular FunctionProspective StudiesRisk FactorsEchocardiographyVentricular Function, LeftHeart BlockHemodynamicsDogsDiabetes ComplicationsHeart SeptumHeart Function TestsMyocytes, CardiacMyocardial IschemiaMyocardial InfarctionEndocardiumCardiomegalyStroke VolumeHeart InjuriesVentricular Function, RightCardiomyopathiesHydrocephalusVentricular Dysfunction, Left