Heart FailureCardiomyopathy, DilatedCardiomyopathy, HypertrophicHeartCardiomyopathiesCardiomyopathy, RestrictiveHeart RateTakotsubo CardiomyopathyMyocardiumCardiomyopathy, Hypertrophic, FamilialCardiac Output, LowEchocardiographyVentricular Function, LeftHeart Failure, SystolicChagas CardiomyopathyVentricular Dysfunction, LeftStroke VolumeHeart DiseasesHeart TransplantationHeart Failure, DiastolicMyocardial ContractionHemodynamicsNatriuretic Peptide, BrainVentricular RemodelingCardiomyopathy, AlcoholicMyocytes, CardiacHeart VentriclesAdrenergic beta-AntagonistsElectrocardiographyCardiac Pacing, ArtificialTreatment OutcomeChronic DiseaseCardiotonic AgentsMyocarditisCardiomegalyFollow-Up StudiesTreatment FailureMyocardial IschemiaTime FactorsHeart Function TestsArrhythmogenic Right Ventricular DysplasiaHeart Defects, CongenitalPrognosisProspective StudiesEchocardiography, DopplerHeart SeptumDeath, Sudden, CardiacDiastoleDiabetic CardiomyopathiesSystoleDisease Models, AnimalHeart-Assist DevicesRisk FactorsFibrosisPropanolaminesMyocardial InfarctionHeart AtriaExercise TestVentricular DysfunctionHypertrophy, Left VentricularArrhythmias, CardiacDiureticsAngiotensin-Converting Enzyme InhibitorsPredictive Value of TestsSeverity of Illness IndexRetrospective StudiesBiological MarkersHeart BlockCardiac MyosinsEndomyocardial FibrosisCarbazolesFetal HeartTachycardia, VentricularAtrial Natriuretic FactorHospitalizationExercise ToleranceVentricular PressureDogsDefibrillators, ImplantableVentricular Outflow ObstructionDigoxinCardiovascular AgentsMyosin Heavy ChainsPacemaker, ArtificialMetoprololEndocardiumCardiac CatheterizationHeart ValvesRisk AssessmentSurvival AnalysisVentricular MyosinsSympathetic Nervous SystemOxygen ConsumptionTroponin TSarcomeresMitral Valve InsufficiencySurvival RatePeripartum PeriodKidney Failure, ChronicDisease Progression