Heart VentriclesCerebral VentriclesThird VentricleFourth VentricleLateral VentriclesCerebral Ventricle NeoplasmsNerve BlockHeart BlockVentricular FunctionMyocardiumHeartMyocardial ContractionVentricular Function, RightDouble Outlet Right VentricleHydrocephalusBundle-Branch BlockDogsHeart AtriaHeart Defects, CongenitalEchocardiographyVentricular Function, LeftEndocardiumInjections, IntraventricularCerebral VentriculographyElectrocardiographyVentricular Dysfunction, RightPericardiumEpendymaTransposition of Great VesselsHeart SeptumTime FactorsHemodynamicsHypertrophy, Right VentricularHeart Septal Defects, VentricularCardiomegalyFetal HeartModels, CardiovascularStroke VolumeVentricular Dysfunction, LeftMagnetic Resonance ImagingVentricular RemodelingDiastoleAngiocardiographyHeart Conduction SystemSystoleBlood PressureAction PotentialsRats, Sprague-DawleyCardiac VolumeHeart FailureRats, WistarVentricular PressureAutonomic Nerve BlockCardiomyopathiesMyocytes, CardiacCardiomyopathy, DilatedHeart RatePapillary MusclesHypertrophy, Left VentricularVentriculostomyChoroid PlexusPulmonary ArteryCardiac Pacing, ArtificialAtrial FunctionFontan ProcedureHeart AneurysmCardiac CatheterizationFistulaPacemaker, ArtificialArrhythmias, CardiacHypoplastic Left Heart SyndromeBrainEchocardiography, DopplerCoronary CirculationVentricular SeptumCardiac Surgical ProceduresMyocardial InfarctionVentriculoperitoneal ShuntRNA, MessengerDisease Models, AnimalTricuspid ValveAnesthetics, LocalCerebral AqueductOrgan SizeVentricular FibrillationTetralogy of FallotBundle of HisTricuspid AtresiaDose-Response Relationship, DrugCerebrospinal FluidVentricular DysfunctionHeart InjuriesRabbitsHeart NeoplasmsAtrioventricular NodeMitral ValvePulmonary Valve StenosisCalciumCells, CulturedCisterna Magna