2023
Opportunities and Achievement of Medication Initiation Among Inpatients With Heart Failure With Reduced Ejection Fraction
Swat S, Xu H, Allen L, Greene S, DeVore A, Matsouaka R, Goyal P, Peterson P, Hernandez A, Krumholz H, Yancy C, Fonarow G, Hess P, Program A. Opportunities and Achievement of Medication Initiation Among Inpatients With Heart Failure With Reduced Ejection Fraction. JACC Heart Failure 2023, 11: 918-929. PMID: 37318420, DOI: 10.1016/j.jchf.2023.04.015.Peer-Reviewed Original ResearchConceptsEvidence-based medicationsMedication initiationReduced ejection fractionNumber of medicationsMultivariable logistic regressionNumber of patientsPre-existing conditionsReduced ejectionEjection fractionHeart failureMultivariable analysisFemale sexLower oddsMedicationsMean net gainPatientsRural hospitalsAdmissionOlder ageLogistic regressionStudy periodMean numberOddsInitiationRural locations
2019
Usefulness of Social Support in Older Adults After Hospitalization for Acute Myocardial Infarction (from the SILVER-AMI Study)
Green YS, Hajduk AM, Song X, Krumholz HM, Sinha SK, Chaudhry SI. Usefulness of Social Support in Older Adults After Hospitalization for Acute Myocardial Infarction (from the SILVER-AMI Study). The American Journal Of Cardiology 2019, 125: 313-319. PMID: 31787249, PMCID: PMC7003680, DOI: 10.1016/j.amjcard.2019.10.038.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionPost-AMI outcomesMyocardial infarctionIndependent associationMedical Outcomes Study Social Support SurveySocial supportOlder AMI patientsSocial Support SurveyParticipants 75 yearsLow emotional supportLow social supportImportant social determinantInitial hospitalizationOlder patientsDevelopment of interventionsAMI patientsMultivariable analysisMean ageMultivariable regressionHealth outcomesSupport SurveyInformational supportReadmissionSocial determinantsOlder adultsAssociation Between Hospital Recognition for Resuscitation Guideline Adherence and Rates of Survival for In-Hospital Cardiac Arrest
Khera R, Tang Y, Link MS, Krumholz HM, Girotra S, Chan PS. Association Between Hospital Recognition for Resuscitation Guideline Adherence and Rates of Survival for In-Hospital Cardiac Arrest. Circulation Cardiovascular Quality And Outcomes 2019, 12: e005429. PMID: 30871337, PMCID: PMC6592630, DOI: 10.1161/circoutcomes.118.005429.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overAwards and PrizesFemaleGuideline AdherenceHeart ArrestHospital MortalityHospitalsHumansInpatientsMaleMiddle AgedOutcome and Process Assessment, Health CarePatient DischargePractice Guidelines as TopicPractice Patterns, Physicians'Quality Indicators, Health CareRegistriesResuscitationTime FactorsTime-to-TreatmentTreatment OutcomeUnited StatesYoung AdultConceptsHospital cardiac arrestCardiac arrestRate of survivalSpontaneous circulationIn-Hospital Cardiac ArrestGuidelines-Resuscitation registryCardiac arrest survivalEndotracheal tube placementHigh rateHospital performanceBest tertileGuidelines-ResuscitationNational GetGuideline adherenceOverall survivalBackground HospitalTube placementNational registryChest compressionsResuscitation qualityHospitalHospital recognitionAward statusSurvivalWeak association
2017
Adherence to Methodological Standards in Research Using the National Inpatient Sample
Khera R, Angraal S, Couch T, Welsh JW, Nallamothu BK, Girotra S, Chan PS, Krumholz HM. Adherence to Methodological Standards in Research Using the National Inpatient Sample. JAMA 2017, 318: 2011-2018. PMID: 29183077, PMCID: PMC5742631, DOI: 10.1001/jama.2017.17653.Peer-Reviewed Original ResearchWith Great Power Comes Great Responsibility
Khera R, Krumholz HM. With Great Power Comes Great Responsibility. Circulation Cardiovascular Quality And Outcomes 2017, 10: e003846. PMID: 28705865, PMCID: PMC5728376, DOI: 10.1161/circoutcomes.117.003846.Peer-Reviewed Original Research
2015
Standardized Data Collection Practices and the Racial/Ethnic Distribution of Hospitalized Patients
Chakkalakal RJ, Green JC, Krumholz HM, Nallamothu BK. Standardized Data Collection Practices and the Racial/Ethnic Distribution of Hospitalized Patients. Medical Care 2015, 53: 666-672. PMID: 26147864, PMCID: PMC4503513, DOI: 10.1097/mlr.0000000000000392.Peer-Reviewed Original Research
2014
Trends in Aortic Dissection Hospitalizations, Interventions, and Outcomes Among Medicare Beneficiaries in the United States, 2000–2011
Mody PS, Wang Y, Geirsson A, Kim N, Desai MM, Gupta A, Dodson JA, Krumholz HM. Trends in Aortic Dissection Hospitalizations, Interventions, and Outcomes Among Medicare Beneficiaries in the United States, 2000–2011. Circulation Cardiovascular Quality And Outcomes 2014, 7: 920-928. PMID: 25336626, PMCID: PMC4380171, DOI: 10.1161/circoutcomes.114.001140.Peer-Reviewed Original ResearchHospital Variation in Intravenous Inotrope Use for Patients Hospitalized With Heart Failure
Allen LA, Fonarow GC, Grau-Sepulveda MV, Hernandez AF, Peterson PN, Partovian C, Li SX, Heidenreich PA, Bhatt DL, Peterson ED, Krumholz HM. Hospital Variation in Intravenous Inotrope Use for Patients Hospitalized With Heart Failure. Circulation Heart Failure 2014, 7: 251-260. PMID: 24488983, PMCID: PMC5459367, DOI: 10.1161/circheartfailure.113.000761.Peer-Reviewed Original ResearchMeSH KeywordsAgedCardiotonic AgentsCross-Sectional StudiesDose-Response Relationship, DrugFemaleFollow-Up StudiesGuideline AdherenceHeart FailureHospital MortalityHospitalsHumansInfusions, IntravenousInpatientsLength of StayMaleOutcome Assessment, Health CarePractice Patterns, Physicians'RegistriesRetrospective StudiesSurvival RateUnited StatesConceptsInotrope useHeart failureInotropic therapyInotropic agentsGuidelines-Heart Failure registryIntravenous inotropic agentsIntravenous inotropic therapyRisk-standardized ratesUse of inotropesHeart failure hospitalizationHospital-level ratesRandom hospital effectsFailure hospitalizationClinical characteristicsHospital factorsInpatient mortalityClinical factorsClinical outcomesHospital variationHospital characteristicsHospital effectsPatientsUS hospitalsHospitalStudy period
2013
Post-Hospital Syndrome — An Acquired, Transient Condition of Generalized Risk
Krumholz HM. Post-Hospital Syndrome — An Acquired, Transient Condition of Generalized Risk. New England Journal Of Medicine 2013, 368: 100-102. PMID: 23301730, PMCID: PMC3688067, DOI: 10.1056/nejmp1212324.Peer-Reviewed Original Research
2010
Automated External Defibrillators and Survival After In-Hospital Cardiac Arrest
Chan PS, Krumholz HM, Spertus JA, Jones PG, Cram P, Berg RA, Peberdy MA, Nadkarni V, Mancini ME, Nallamothu BK, Investigators F. Automated External Defibrillators and Survival After In-Hospital Cardiac Arrest. JAMA 2010, 304: 2129-2136. PMID: 21078809, PMCID: PMC3587791, DOI: 10.1001/jama.2010.1576.Peer-Reviewed Original ResearchConceptsHospital cardiac arrestCardiac arrestAED useHospital dischargeHospitalized patientsShockable rhythmNonshockable rhythmsIn-Hospital Cardiac ArrestMultivariable hierarchical regressionGeneral hospital wardsEntire study populationExternal defibrillatorsPropensity score analysisUse of AEDsCohort studyImproved survivalPatient factorsStudy populationMAIN OUTCOMEPatientsHospital wardsUS hospitalsHospital sitesHospital unitsAEDs
2009
Elevated Admission Glucose and Mortality in Elderly Patients Hospitalized With Heart Failure
Kosiborod M, Inzucchi SE, Spertus JA, Wang Y, Masoudi FA, Havranek EP, Krumholz HM. Elevated Admission Glucose and Mortality in Elderly Patients Hospitalized With Heart Failure. Circulation 2009, 119: 1899-1907. PMID: 19332465, DOI: 10.1161/circulationaha.108.821843.Peer-Reviewed Original ResearchConceptsHeart failureAdmission glucoseElderly patientsDiabetes mellitusAdverse outcomesMultivariable Cox regression modelsAdmission glucose levelsElevated admission glucoseAcute myocardial infarctionCox regression modelCause mortalityMultivariable adjustmentEntire cohortGlucose controlMyocardial infarctionCardiovascular conditionsGlucose levelsLarge cohortElevated glucoseRepresentative cohortPatientsSignificant associationMortalityCohortMellitus
2008
An early invasive strategy versus ischemia-guided management after fibrinolytic therapy for ST-segment elevation myocardial infarction: A meta-analysis of contemporary randomized controlled trials
Wijeysundera HC, You JJ, Nallamothu BK, Krumholz HM, Cantor WJ, Ko DT. An early invasive strategy versus ischemia-guided management after fibrinolytic therapy for ST-segment elevation myocardial infarction: A meta-analysis of contemporary randomized controlled trials. American Heart Journal 2008, 156: 564-572.e2. PMID: 18760142, DOI: 10.1016/j.ahj.2008.04.024.Peer-Reviewed Original ResearchMeSH KeywordsAngioplasty, Balloon, CoronaryCardiac CatheterizationElectrocardiographyFemaleFibrinolytic AgentsHemorrhageHumansInjections, IntravenousInpatientsMaleMiddle AgedMyocardial InfarctionMyocardial IschemiaMyocardial ReperfusionRandomized Controlled Trials as TopicRecurrenceStentsStrokeThrombolytic TherapyConceptsST-segment elevation myocardial infarctionEarly invasive strategyPercutaneous coronary interventionElevation myocardial infarctionFibrinolytic therapyInvasive strategyMajor bleedingSTEMI patientsMyocardial infarctionHospital major bleedingIntravenous fibrinolytic therapyLarge randomized trialsRisk of strokeSignificant reductionCause mortalityEligible trialsCoronary interventionRandomized trialsContemporary trialsStent useInclusion criteriaPatientsReinfarctionTherapyTrialsA Campaign to Improve the Timeliness of Primary Percutaneous Coronary Intervention Door-to-Balloon: An Alliance for Quality
Krumholz HM, Bradley EH, Nallamothu BK, Ting HH, Batchelor WB, Kline-Rogers E, Stern AF, Byrd JR, Brush JE. A Campaign to Improve the Timeliness of Primary Percutaneous Coronary Intervention Door-to-Balloon: An Alliance for Quality. JACC Cardiovascular Interventions 2008, 1: 97-104. PMID: 19393152, DOI: 10.1016/j.jcin.2007.10.006.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionD2B timeD2B AllianceCatheterization laboratoryPrimary percutaneous coronary interventionEmergency medical services personnelElevation myocardial infarctionMajority of patientsPercutaneous coronary interventionNon-transferred patientsAmerican Heart AssociationMedical services personnelEmergency medicine physiciansPre-hospital electrocardiogramTeam-based approachCoronary interventionHospital arrivalHeart AssociationMyocardial infarctionAmerican CollegeMedicine physiciansLikelihood of survivalPatientsUnderused strategyBalloon
2007
Changes in outcomes for internal medicine inpatients after work-hour regulations.
Horwitz LI, Kosiborod M, Lin Z, Krumholz HM. Changes in outcomes for internal medicine inpatients after work-hour regulations. Annals Of Internal Medicine 2007, 147: 97-103. PMID: 17548401, DOI: 10.7326/0003-4819-147-2-200707170-00163.Peer-Reviewed Original ResearchConceptsIntensive care unit utilizationLength of stayDrug-drug interactionsWork-hour regulationsNonteaching servicesHospital deathPharmacist interventionsReadmission ratesConsecutive patientsRetrospective cohort studyInternal medicine patientsInternal medicine inpatientsUnit utilizationAdverse drug-drug interactionsTeaching serviceAcademic medical centerCohort studyDischarge dispositionMedicine inpatientsMedicine patientsFatigue-related errorsMedical CenterRehabilitation facilityRate of dischargePatients
2005
Quality of Care and Outcomes of Older Patients With Heart Failure Hospitalized in the United States and Canada
Ko DT, Tu JV, Masoudi FA, Wang Y, Havranek EP, Rathore SS, Newman AM, Donovan LR, Lee DS, Foody JM, Krumholz HM. Quality of Care and Outcomes of Older Patients With Heart Failure Hospitalized in the United States and Canada. JAMA Internal Medicine 2005, 165: 2486-2492. PMID: 16314545, DOI: 10.1001/archinte.165.21.2486.Peer-Reviewed Original ResearchConceptsHeart failureProcess of careRisk-standardized mortalityQuality of careUS patientsMortality rateEnzyme inhibitorsLower crude mortality rateLower short-term mortalityAngiotensin-converting enzyme inhibitorRisk-standardized mortality ratesVentricular ejection fraction assessmentOutcomes of patientsShort-term mortalityUS Medicare beneficiariesIndividuals 65 yearsCrude mortality rateEjection fraction assessmentLow-risk characteristicsHealth care expendituresOlder patientsCanadian patientsCommon causeMedicare beneficiariesPatientsRace and Renal Impairment in Heart Failure
Smith GL, Shlipak MG, Havranek EP, Masoudi FA, McClellan WM, Foody JM, Rathore SS, Krumholz HM. Race and Renal Impairment in Heart Failure. Circulation 2005, 111: 1270-1277. PMID: 15769768, DOI: 10.1161/01.cir.0000158131.78881.d5.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBiomarkersBlack or African AmericanCohort StudiesComorbidityCreatinineDiabetes MellitusFemaleGlomerular Filtration RateHeart FailureHumansHypertensionInpatientsKidney DiseasesMaleMedicareMortalityMyocardial InfarctionPrognosisRetrospective StudiesRisk FactorsTreatment OutcomeWhite PeopleConceptsRenal impairmentHF patientsWhite patientsMortality riskRacial differencesElderly HF patientsSimilar racial differencesGlomerular filtration rateHeart failure patientsStriking racial disparitiesMagnitude of riskDistinct morbidityElevated creatinineFailure patientsRenal functionHeart failureHigher creatinineRenal diseaseBlack patientsOptimal therapyPrognostic indicatorFiltration rateMedicare patientsMortality burdenRepresentative cohort
2004
Regional variations in racial differences in the treatment of elderly patients hospitalized with acute myocardial infarction
Rathore SS, Masoudi FA, Havranek EP, Krumholz HM. Regional variations in racial differences in the treatment of elderly patients hospitalized with acute myocardial infarction. The American Journal Of Medicine 2004, 117: 811-822. PMID: 15589484, PMCID: PMC2790535, DOI: 10.1016/j.amjmed.2004.06.034.Peer-Reviewed Original ResearchConceptsBeta-blocker useMyocardial infarctionWhite patientsCoronary revascularizationBlack patientsRacial differencesCardiac catheterization useLower crude ratesUse of aspirinDay of admissionHealth care useTreatment of patientsAcute myocardial infarctionService Medicare beneficiariesMedical record dataQuality of careElderly feeRevascularization useAspirin useMultivariable adjustmentElderly patientsCardiac catheterizationCardiac proceduresCare useCrude rate
2003
Validity of a Simple ST-Elevation Acute Myocardial Infarction Risk Index
Rathore SS, Weinfurt KP, Gross CP, Krumholz HM. Validity of a Simple ST-Elevation Acute Myocardial Infarction Risk Index. Circulation 2003, 107: 811-816. PMID: 12591749, DOI: 10.1161/01.cir.0000049743.45748.02.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCalibrationCohort StudiesElectrocardiographyFemaleHumansInpatientsMaleMyocardial InfarctionMyocardial ReperfusionPredictive Value of TestsPrognosisRandomized Controlled Trials as TopicReproducibility of ResultsRetrospective StudiesRiskRisk AssessmentSurvival AnalysisConceptsSimple risk indexCommunity-based cohortRCT populationMyocardial infarctionST-segment elevation myocardial infarctionST-elevation myocardial infarctionMyocardial Infarction (TIMI) risk indexRandomized clinical trial dataAcute reperfusion therapyPatients 65 yearsRisk stratification scoresElevation myocardial infarctionCommunity-based populationDistribution of patientsHigh-risk groupLow-risk groupRisk stratification indexClinical trial dataYears of ageRisk indexReperfusion therapyRisk score distributionPrognostic scoreMortality estimatesGeneral population