Heart FailureAcute DiseaseHeartNatriuretic Peptide, BrainNatriuretic AgentsDyspneaCardiac Output, LowPatient ReadmissionCardiotonic AgentsDiureticsHydrazonesHeart RateCardio-Renal SyndromePrognosisProspective StudiesEtiocholanoloneBiological MarkersTreatment OutcomeShock, CardiogenicSodium Potassium Chloride Symporter InhibitorsHospitalizationFurosemideVentricular Dysfunction, LeftRelaxinStroke VolumeAdenosine A1 Receptor AntagonistsHeart Failure, SystolicNicorandilHeart-Assist DevicesHemodynamicsVentricular Function, LeftPyridazinesAdrenergic beta-AntagonistsEmergency Service, HospitalEchocardiographyTime FactorsSyndromeHeart TransplantationHospital MortalityCystatin CHeart Failure, DiastolicPulmonary EdemaAtrial Natriuretic FactorFollow-Up StudiesMyocardiumPredictive Value of TestsRisk AssessmentVasodilator AgentsRisk FactorsPeptide FragmentsHeart DiseasesAdrenomedullinLength of StayMyocarditisCardiomyopathy, DilatedKaplan-Meier EstimateRetrospective StudiesIntra-Aortic Balloon PumpingSeverity of Illness IndexDisease ManagementDouble-Blind MethodLipocalinsTreatment FailureXanthinesChronic DiseaseBlood PressureFatal OutcomeInfusions, IntravenousPatient DischargeElectrocardiographyVentricular RemodelingProportional Hazards ModelsComorbiditySurvival RateSurvival AnalysisKidneyHeart Defects, CongenitalCreatinineMultivariate AnalysisMyocardial InfarctionMyocardial ContractionGlomerular Filtration RateCardiac Pacing, ArtificialCohort StudiesLogistic ModelsHeart Function TestsCardiomyopathiesCardiomegalyMyocytes, CardiacKidney DiseasesEmergency Medical ServicesEchocardiography, DopplerAngiotensin-Converting Enzyme InhibitorsHeart AtriaOdds RatioRegistriesUnited StatesOutcome Assessment (Health Care)Fetal HeartPropanolamines