Cardiac CatheterizationHeart ArrestEmergency Medical ServicesCardiopulmonary ResuscitationEmergency Medical TechniciansOut-of-Hospital Cardiac ArrestAmbulancesResuscitationUrinary CatheterizationElectric CountershockCatheterizationTime FactorsRetrospective StudiesProspective StudiesTreatment OutcomeHeart Defects, CongenitalCardiac OutputSurvival AnalysisMyocytes, CardiacCatheterization, PeripheralEchocardiographyCardiac Surgical ProceduresHeartHemodynamicsCoronary AngiographyMyocardial InfarctionCardiology Service, HospitalCatheterization, Central VenousHeart DiseasesElectrocardiographyPulmonary ArteryCardiac Care FacilitiesHospitals, TeachingAngiocardiographyEchocardiography, DopplerHypertension, PulmonaryPulmonary Wedge PressureHeart VentriclesHospitals, GeneralHemostatic TechniquesHospitals, UniversityCineangiographyAngioplasty, Balloon, CoronaryHeart Septal Defects, VentricularRadial ArteryFollow-Up StudiesArrhythmias, CardiacFemoral ArteryHospital CostsCoronary Artery DiseaseVentricular Function, LeftCoronary DiseaseIntermittent Urethral CatheterizationPericarditis, ConstrictiveHospitals, DistrictPulmonary Valve StenosisCatheterization, Swan-GanzInfant, NewbornRisk FactorsHeart FailureCardiologyStroke VolumeHeart Septal Defects, AtrialEmbolism, CholesterolAortic Valve StenosisCoronary Artery BypassHospitalizationFluoroscopyBlood PressureHospitals, UrbanNursing Staff, HospitalDeath, Sudden, CardiacLength of StayMyocardial ContractionEconomics, HospitalRisk AssessmentAngiographyEmergency Service, HospitalHeart Bypass, RightCardiac Pacing, ArtificialPredictive Value of TestsMyocardiumCoronary CirculationHospitals, PediatricVentricular Dysfunction, LeftPulmonary CirculationPostoperative ComplicationsVentricular PressureCyanosisHeart AtriaCardiomegalyHospital Bed CapacityExercise TestCoronary Vessel AnomaliesHospitals, SpecialCardiomyopathy, RestrictiveCoronary VesselsVascular ResistanceCardiomyopathiesHeart Septum