Myocytes, CardiacCardiac OutputHeartCardiac Surgical ProceduresArrhythmias, CardiacDeath, Sudden, CardiacComprehensive Health CareHeart DiseasesCardiac Pacing, ArtificialCardiomegalyCardiac TamponadeMyocardiumCardiac CatheterizationTime FactorsMyocardial ContractionHeart ArrestHeart VentriclesTreatment OutcomeGerminal CenterHeart FailureCardiomyopathiesElectrocardiographyMyoblasts, CardiacRetrospective StudiesCardiac Imaging TechniquesCardiac MyosinsChild Day Care CentersEchocardiographyProspective StudiesHeart RateCardiac GlycosidesRisk FactorsHemodynamicsCardiac Output, LowOut-of-Hospital Cardiac ArrestMyocardial InfarctionHeart TransplantationVentricular RemodelingCardiac VolumeVentricular Function, LeftFollow-Up StudiesHeart Defects, CongenitalTroponin IReproducibility of ResultsUnited StatesCommunity Health CentersBlood PressureCardiac Care FacilitiesTertiary Care CentersStroke VolumeTrauma CentersComprehensive Dental CareDogsMolecular Sequence DataCardiopulmonary ResuscitationCardiac Resynchronization TherapyHeart Function TestsRisk AssessmentHeart Conduction SystemTroponin TVentricular Dysfunction, LeftHeart NeoplasmsCardiomyopathy, DilatedMyocardial IschemiaPredictive Value of TestsCardiotonic AgentsDisease Models, AnimalModels, CardiovascularRats, Sprague-DawleyGene Expression ProfilingAlgorithmsCells, CulturedCardiac ElectrophysiologyFetal HeartFibrosisCalciumPrognosisCenters for Disease Control and Prevention (U.S.)Biological MarkersMutationHeart AtriaInternetVentricular FunctionSignal TransductionSensitivity and SpecificitySoftwareCohort StudiesHeart InjuriesMice, Inbred C57BLPhenotypeMice, TransgenicRNA, MessengerDatabases, FactualAmino Acid SequenceModels, BiologicalCardiopulmonary BypassSeverity of Illness IndexInfant, NewbornAge FactorsBase Sequence