CardiomegalyProton-Translocating ATPasesHeart FailureHeartHydrops FetalisCardiomegaly, Exercise-InducedCattleHeart RateCardiomyopathiesJamaicaHeart Defects, CongenitalRadiography, ThoracicArteriovenous FistulaMyocardiumEchocardiographyPericardial EffusionChagas CardiomyopathyFetal DiseasesHeart NeoplasmsElectrocardiographyHeart DiseasesUltrasonography, PrenatalFatal OutcomeHeart TransplantationRetrospective StudiesHemodynamicsPrognosisCardiomyopathy, DilatedRats, Inbred F344Ventricular Function, LeftPregnancyHeart AtriaVentricular Dysfunction, LeftStroke VolumeNatriuretic Peptide, BrainInfant, NewbornHypertensionFetal HeartHeart ValvesMyocardial InfarctionTime FactorsHeart Function TestsMyocardial ContractionCardiotonic AgentsCardiac Pacing, ArtificialFollow-Up StudiesRisk FactorsTreatment OutcomeDiureticsHeart BlockMyocardial IschemiaF FactorAdrenergic beta-AntagonistsF2-IsoprostanesCheyne-Stokes RespirationProspective StudiesAtrial Natriuretic FactorDogsChronic DiseaseAngiotensin-Converting Enzyme InhibitorsMyocytes, CardiacCoronary DiseaseVentricular RemodelingSympathetic Nervous SystemAtrial FibrillationDigoxinExercise TestNorepinephrinePulmonary Wedge PressurePropanolaminesHeart Arrest, InducedHospitalizationPredictive Value of TestsHeart VentriclesRheumatic Heart DiseaseDiastoleSeverity of Illness IndexFurosemideSpironolactoneBiological MarkersAnti-Arrhythmia AgentsCardiac Output, LowSystoleSurvival AnalysisOxygen ConsumptionCaptoprilRisk AssessmentDisease Models, AnimalMyocarditisDouble-Blind MethodHeart Valve ProsthesisMilrinoneBlood PressureCohort StudiesCarbazolesHypertrophy, Left VentricularSurvival RateEchocardiography, DopplerVentricular DysfunctionProportional Hazards Models