Shock, CardiogenicIntra-Aortic Balloon PumpingMyocardial InfarctionInfarctionHeart-Assist DevicesAssisted CirculationShockCerebral InfarctionAngioplasty, Balloon, CoronaryHospital MortalityTreatment OutcomeThrombolytic TherapyShock, SepticExtracorporeal Membrane OxygenationPulmonary EdemaMyocardial RevascularizationTime FactorsElectrocardiographyCoronary AngiographyCounterpulsationHemodynamicsProspective StudiesEmergency TreatmentAcute DiseaseRetrospective StudiesHeart Rupture, Post-InfarctionCoronary Care UnitsRisk FactorsShock, HemorrhagicMyocardial ReperfusionCoronary Artery BypassEmergenciesMyocarditisRegistriesAnterior Wall Myocardial InfarctionTakotsubo CardiomyopathyPrognosisStentsHeart FailureHeart RuptureCardiopulmonary BypassFatal OutcomeScorpion StingsStreptokinaseCardiac CatheterizationHospitals, CommunityPercutaneous Coronary InterventionSurvival RateVentricular Septal RuptureSurvival AnalysisFibrinolytic AgentsMyocardiumCardiotonic AgentsExtracorporeal CirculationMultivariate AnalysisRisk AssessmentVentricular Dysfunction, LeftVentricular Function, LeftLogistic ModelsHeartMultiple Organ FailureEchocardiographyCoronary DiseaseCreatine KinaseRecurrenceAcute Coronary SyndromeEmergency Medical ServicesHeart Valve Prosthesis ImplantationPredictive Value of TestsCoronary StenosisCoronary VesselsStroke VolumeCardiomyopathiesHeart DiseasesSeverity of Illness IndexKaplan-Meier EstimatePlatelet Aggregation InhibitorsResuscitationHeart VentriclesCoronary ThrombosisPatient TransferCardiac TamponadeBiological MarkersHeat-Shock ProteinsAir AmbulancesDevice RemovalMassachusettsTissue Plasminogen ActivatorCoronary CirculationFeasibility StudiesCoronary OcclusionCoronary Artery DiseaseSplenic InfarctionThrombectomyCardiac Surgical ProceduresFollow-Up StudiesIncidenceCardiopulmonary ResuscitationThrombosisPulmonary Embolism