Heart FailureDiastoleHeart Failure, DiastolicVentricular Dysfunction, LeftHeartEchocardiography, DopplerVentricular DysfunctionStroke VolumeVentricular Function, LeftHeart RateEchocardiographySystoleHeart Failure, SystolicNatriuretic Peptide, BrainCardiac Output, LowMyocardiumCardiomyopathiesMyocardial ContractionHemodynamicsVentricular RemodelingEchocardiography, Doppler, PulsedHeart DiseasesHypertrophy, Left VentricularHeart VentriclesCardiomyopathy, DilatedHeart Function TestsCardiomegalyProspective StudiesMyocytes, CardiacVentricular PressureVentricular Dysfunction, RightTime FactorsFibrosisHeart TransplantationDisease Models, AnimalChronic DiseaseCardiomyopathy, RestrictiveCardiotonic AgentsBiological MarkersBlood PressureHeart AtriaSarcoplasmic Reticulum Calcium-Transporting ATPasesRisk FactorsTreatment OutcomeHypertensionAdrenergic beta-AntagonistsFollow-Up StudiesPrognosisSeverity of Illness IndexPredictive Value of TestsCardiomyopathy, HypertrophicTreatment FailureEndomyocardial FibrosisMyocardial InfarctionExercise TestEchocardiography, Doppler, ColorMyocardial IschemiaCardiac Pacing, ArtificialErectile DysfunctionAngiotensin-Converting Enzyme InhibitorsElectrocardiographyHeart Defects, CongenitalAtrial Function, LeftMitral ValveCase-Control StudiesAtrial Natriuretic FactorExercise ToleranceDogsRetrospective StudiesBlood Flow VelocityRisk AssessmentPulmonary Wedge PressureSpironolactoneMineralocorticoid Receptor AntagonistsHospitalizationDisease ProgressionCohort StudiesVentricular FunctionDiureticsAtrial FibrillationDiabetic CardiomyopathiesKidney Failure, ChronicCardiac CatheterizationHeart-Assist DevicesCardiovascular AgentsOxidative StressOxygen ConsumptionCalciumRats, Sprague-DawleyAnalysis of VarianceRats, WistarRats, Inbred DahlCoronary DiseasePropanolaminesChi-Square DistributionROC CurveDyspneaFetal HeartPrevalencePeptide Fragments