Patient ReadmissionHeart FailureHeartHeart RateCardiac Output, LowHeart Failure, SystolicHeart Failure, DiastolicPatient DischargeLength of StayStroke VolumeTreatment OutcomeMyocardiumNatriuretic Peptide, BrainHeart DiseasesHeart TransplantationCardiomyopathy, DilatedTime FactorsHospitalizationRetrospective StudiesVentricular Function, LeftChronic DiseaseRisk FactorsVentricular Dysfunction, LeftHemodynamicsTreatment FailureFollow-Up StudiesAdrenergic beta-AntagonistsProspective StudiesMyocardial InfarctionVentricular RemodelingHeart Defects, CongenitalEchocardiographyPrognosisCardiotonic AgentsMyocardial ContractionMedicareCardiac Pacing, ArtificialDiureticsUnited StatesHeart Function TestsCohort StudiesCardiomyopathiesCardiomegalyAngiotensin-Converting Enzyme InhibitorsMyocytes, CardiacSeverity of Illness IndexPredictive Value of TestsRisk AssessmentHeart AtriaHospital MortalityProportional Hazards ModelsHeart-Assist DevicesBiological MarkersFetal HeartPropanolaminesMyocardial IschemiaExercise TestAcute DiseaseSystoleComorbidityDisease Models, AnimalMultivariate AnalysisSurvival AnalysisHospital CostsHeart ValvesHeart VentriclesDiastoleOutcome Assessment (Health Care)DogsExercise ToleranceKaplan-Meier EstimatePostoperative ComplicationsDigoxinKidney Failure, ChronicQuality of Health CareLogistic ModelsHospitalsSurvival RateAtrial Natriuretic FactorVentricular DysfunctionDiagnosis-Related GroupsCarbazolesSympathetic Nervous SystemAftercareHospitalistsOxygen ConsumptionOutcome and Process Assessment (Health Care)Echocardiography, DopplerHeart BlockQuality Indicators, Health CareVentricular PressureAge FactorsPatient AcuityCardiovascular AgentsChi-Square DistributionPulmonary Wedge PressureDouble-Blind MethodIncidenceCoronary DiseaseMineralocorticoid Receptor Antagonists