CaptoprilHeart FailureHeartHeart RateAngiotensin-Converting Enzyme InhibitorsCardiac Output, LowHeart Failure, SystolicHeart Failure, DiastolicHemodynamicsMyocardiumStroke VolumeProlineCardiomyopathy, DilatedHeart DiseasesVentricular Function, LeftHeart TransplantationVentricular Dysfunction, LeftNatriuretic Peptide, BrainChronic DiseaseTreatment FailureAdrenergic beta-AntagonistsBlood PressureVentricular RemodelingTime FactorsEchocardiographyReninTreatment OutcomeMyocardial ContractionMyocardial InfarctionHeart Defects, CongenitalCardiomegalyDiureticsCardiotonic AgentsHeart Function TestsCardiomyopathiesRenin-Angiotensin SystemCardiac Pacing, ArtificialFollow-Up StudiesProspective StudiesRadioisotope RenographyMyocytes, CardiacHypertensionAngiotensin IIPrognosisEnalaprilAntihypertensive AgentsPeptidyl-Dipeptidase ARisk FactorsDisease Models, AnimalHeart AtriaDouble-Blind MethodHydralazineHeart-Assist DevicesHospitalizationExercise TestMyocardial IschemiaSystoleDogsFetal HeartAngiotensin IPropanolaminesHypertension, RenovascularHeart VentriclesIsosorbide DinitrateSympathetic Nervous SystemDigoxinBiological MarkersKidneyAtrial Natriuretic FactorKidney Failure, ChronicRetrospective StudiesTetrazolesHeart ValvesSeverity of Illness IndexPredictive Value of TestsDiastoleFurosemideNorepinephrineAldosteroneAngiotensin Receptor AntagonistsExercise ToleranceOxygen ConsumptionVascular ResistanceHydrochlorothiazideRats, WistarVentricular DysfunctionHypertrophy, Left VentricularTechnetium Tc 99m MertiatideCarbazolesTechnetium Tc 99m PentetateRats, Inbred SHRMetoprololPatient ReadmissionPulmonary Wedge PressureRats, Sprague-DawleyDose-Response Relationship, DrugEchocardiography, DopplerHeart BlockVentricular PressureRisk Assessment