Myocardial InfarctionVentricular Dysfunction, LeftElectrocardiographyVentricular Function, LeftAngioplasty, Balloon, CoronaryTime FactorsThrombolytic TherapyStroke VolumeCoronary AngiographyEchocardiographyInfarctionMyocardial ReperfusionVentricular RemodelingTreatment OutcomeHeart FailureMyocardiumProspective StudiesRisk FactorsStreptokinaseVentricular DysfunctionCreatine KinaseFollow-Up StudiesVentricular Dysfunction, RightPrognosisCerebral InfarctionMyocardial IschemiaAnterior Wall Myocardial InfarctionPredictive Value of TestsCoronary DiseaseCoronary CirculationHeartHeart VentriclesMyocardial RevascularizationCoronary Care UnitsHemodynamicsFibrinolytic AgentsShock, CardiogenicMyocardial ContractionAcute DiseaseCoronary VesselsRetrospective StudiesCoronary Artery BypassAngina PectorisHospital MortalityBiological MarkersArrhythmias, CardiacCardiotonic AgentsCoronary Artery DiseaseAngina, UnstableRisk AssessmentNatriuretic Peptide, BrainDobutamineCardiac CatheterizationChest PainStentsRecurrenceTomography, Emission-Computed, Single-PhotonAngiotensin-Converting Enzyme InhibitorsCardiomyopathiesSystolePlatelet Aggregation InhibitorsCoronary ThrombosisTissue SurvivalMyocardial StunningSurvival AnalysisRadionuclide VentriculographyAdrenergic beta-AntagonistsProportional Hazards ModelsHospitalizationThallium RadioisotopesExercise TestMultivariate AnalysisDogsPercutaneous Coronary InterventionDeath, Sudden, CardiacSurvival RateDisease Models, AnimalHeart DiseasesEchocardiography, DopplerRegistriesTroponin TIncidenceTroponin ICase-Control StudiesTissue Plasminogen ActivatorCohort StudiesSeverity of Illness IndexHeart RateHeart Function TestsDiastoleSensitivity and SpecificityIntra-Aortic Balloon PumpingChi-Square DistributionBlood PressureCardiovascular AgentsHypertrophy, Left VentricularDouble-Blind MethodMyocardial Reperfusion InjuryCardiomyopathy, DilatedClinical Enzyme Tests