2023
Association of neighbourhood‐level material deprivation with adverse outcomes and processes of care among patients with heart failure in a single‐payer healthcare system: A population‐based cohort study
Bobrowski D, Dorovenis A, Abdel‐Qadir H, McNaughton C, Alonzo R, Fang J, Austin P, Udell J, Jackevicius C, Alter D, Atzema C, Bhatia R, Booth G, Ha A, Johnston S, Dhalla I, Kapral M, Krumholz H, Roifman I, Wijeysundera H, Ko D, Tu K, Ross H, Schull M, Lee D. Association of neighbourhood‐level material deprivation with adverse outcomes and processes of care among patients with heart failure in a single‐payer healthcare system: A population‐based cohort study. European Journal Of Heart Failure 2023, 25: 2274-2286. PMID: 37953731, DOI: 10.1002/ejhf.3090.Peer-Reviewed Original ResearchProcess of careCardiovascular hospitalizationHeart failureIncident heart failure patientsNeighbourhood-level material deprivationPopulation-based cohort studyAge groupsPopulation-based retrospective studyCause-specific hazards regressionCause-specific hospitalizationsHeart failure patientsAdvanced cardiac imagingNeighborhood material deprivationHealthcare systemSingle-payer healthcare systemMultiple covariate adjustmentOlder age groupsHigher hazardUniversal healthcare systemCardiology visitsDeprived neighbourhoodsCause deathCause mortalityCohort studyFailure patients
2022
Cardiac Status Among Heart Failure Patients With Implantable Cardioverter Defibrillators Before, During, and After COVID-19 Lockdown
Lu Y, Jones PW, Murugiah K, Caraballo C, Mahajan S, Massey D, Ahmed R, Bader E, Krumholz H. Cardiac Status Among Heart Failure Patients With Implantable Cardioverter Defibrillators Before, During, and After COVID-19 Lockdown. Journal Of Cardiac Failure 2022, 28: 1372-1374. PMID: 35690314, PMCID: PMC9187866, DOI: 10.1016/j.cardfail.2022.05.012.Peer-Reviewed Original ResearchConceptsImplantable cardioverter defibrillatorHeart failure patientsCRT-D devicesCardiac statusFailure patientsHeart failureCardioverter defibrillatorCardiac resynchronization therapy defibrillatorAcute cardiac conditionsMedical care deliveryInpatient careCardiac conditionsPhysiologic markersInpatient servicesPatientsCardiac healthCare deliveryMarked restrictionImplanted ICDsMinneapolis/Saint PaulSex subgroupsDefibrillatorCOVID-19Telemedicine servicesCOVID-19 lockdown
2012
Hospital Patterns of Use of Positive Inotropic Agents in Patients With Heart Failure
Partovian C, Gleim SR, Mody PS, Li SX, Wang H, Strait KM, Allen LA, Lagu T, Normand SL, Krumholz HM. Hospital Patterns of Use of Positive Inotropic Agents in Patients With Heart Failure. Journal Of The American College Of Cardiology 2012, 60: 1402-1409. PMID: 22981548, PMCID: PMC3636773, DOI: 10.1016/j.jacc.2012.07.011.Peer-Reviewed Original ResearchConceptsPositive inotropic agentsRisk-standardized ratesInotropic agentsHeart failureInotrope useHospital patternsMortality rateRisk-standardized mortality ratesHospital mortality rateHeart failure patientsLittle clinical evidenceLength of stayPatient case mixHierarchical logistic regression modelsLogistic regression modelsIntraclass correlation coefficientFailure patientsHospital variationClinical evidenceInterhospital variationClinical guidelinesIndividual hospital effectsHospital ratesHospital effectsPatterns of use
2010
Racial Disparities in Health Literacy and Access to Care Among Patients With Heart Failure
Chaudhry SI, Herrin J, Phillips C, Butler J, Mukerjhee S, Murillo J, Onwuanyi A, Seto TB, Spertus J, Krumholz HM. Racial Disparities in Health Literacy and Access to Care Among Patients With Heart Failure. Journal Of Cardiac Failure 2010, 17: 122-127. PMID: 21300301, PMCID: PMC3053061, DOI: 10.1016/j.cardfail.2010.09.016.Peer-Reviewed Original ResearchConceptsHeart failure patientsHealth literacyFailure patientsHeart failureInsurance statusWorse health literacyOutpatient medical careRacial differencesImportant racial differencesNoncardiac comorbiditiesUnadjusted analysesBlack raceCare existMedical homePatientsMedical careRacial disparitiesSocioeconomic statusStrong associationPotential mediatorsHealth carePoor accessCareSocial supportStatus
2008
An Administrative Claims Measure Suitable for Profiling Hospital Performance on the Basis of 30-Day All-Cause Readmission Rates Among Patients With Heart Failure
Keenan PS, Normand SL, Lin Z, Drye EE, Bhat KR, Ross JS, Schuur JD, Stauffer BD, Bernheim SM, Epstein AJ, Wang Y, Herrin J, Chen J, Federer JJ, Mattera JA, Wang Y, Krumholz HM. An Administrative Claims Measure Suitable for Profiling Hospital Performance on the Basis of 30-Day All-Cause Readmission Rates Among Patients With Heart Failure. Circulation Cardiovascular Quality And Outcomes 2008, 1: 29-37. PMID: 20031785, DOI: 10.1161/circoutcomes.108.802686.Peer-Reviewed Original ResearchConceptsRisk-standardized readmission ratesCause readmission rateReadmission ratesHeart failureHospital-level readmission ratesAdjusted readmission ratesAdministrative Claims MeasureUnadjusted readmission ratesHeart failure patientsHospital risk-standardized readmission ratesMedical record dataProfiling Hospital PerformanceHierarchical logistic regression modelsUse of MedicareMedical record modelNational Quality ForumLogistic regression modelsCause readmissionClaims-based modelsHospital dischargeFailure patientsC-statisticPreventable eventsPatientsQuality ForumSystolic Function as a Predictor of Mortality and Quality of Life in Long‐term Survivors with Heart Failure
McNamara R, Austin B, Wang Y, Smith G, Vaccarine V, Krumholz H. Systolic Function as a Predictor of Mortality and Quality of Life in Long‐term Survivors with Heart Failure. Clinical Cardiology 2008, 31: 119-124. PMID: 18383045, PMCID: PMC6653267, DOI: 10.1002/clc.20118.Peer-Reviewed Original ResearchConceptsQuality of lifeEjection fractionHeart failureLong-term survivorsFunctional declineSystolic functionKansas City Cardiomyopathy Questionnaire scoreModest survival advantageReduced ejection fractionDaily living scoreDisease-related qualityPredictors of mortalityHeart failure patientsClinical summary scoreLong-term survivalHigh mortality rateKCCQ scoresRenal insufficiencyFailure patientsLiving scoreDiabetes mellitusOverall mortalityPrimary outcomeLimitation scoresQOL scores
2007
Identifying Heart Failure Patients at High Risk for Near-Term Cardiovascular Events With Serial Health Status Assessments
Kosiborod M, Soto GE, Jones PG, Krumholz HM, Weintraub WS, Deedwania P, Spertus JA. Identifying Heart Failure Patients at High Risk for Near-Term Cardiovascular Events With Serial Health Status Assessments. Circulation 2007, 115: 1975-1981. PMID: 17420346, DOI: 10.1161/circulationaha.106.670901.Peer-Reviewed Original ResearchConceptsKansas City Cardiomyopathy QuestionnaireHeart failure outpatientsHealth status assessmentCause mortalityCardiovascular mortalityKaplan-Meier survival analysisHigh-risk patientsHeart failure patientsAcute myocardial infarctionProportional hazards modelIntensity of treatmentStatus assessmentKCCQ scoresCardiovascular deathCardiovascular eventsClinical deteriorationMultivariable adjustmentFailure patientsHeart failureOutpatient visitsMyocardial infarctionHigh riskHospitalizationPatientsCombined outcomeTelemonitoring for Patients With Chronic Heart Failure: A Systematic Review
Chaudhry SI, Phillips CO, Stewart SS, Riegel B, Mattera JA, Jerant AF, Krumholz HM. Telemonitoring for Patients With Chronic Heart Failure: A Systematic Review. Journal Of Cardiac Failure 2007, 13: 56-62. PMID: 17339004, PMCID: PMC1910700, DOI: 10.1016/j.cardfail.2006.09.001.BooksConceptsHeart failure patientsFailure patientsHeart failureHigh-risk heart failure patientsHigh-risk Hispanic populationMonitoring of signsChronic heart failureHeart failure hospitalizationLow-risk patientsDisease managementHigh-quality careFailure hospitalizationNegative studiesSymptom monitoringPatientsHealth statusMEDLINE databaseSystematic reviewQuality carePhysiologic monitoringIntervention typeEvidence baseSimilar effectivenessIntervention costsHispanic population
2006
Serum Urea Nitrogen, Creatinine, and Estimators of Renal Function: Mortality in Older Patients With Cardiovascular Disease
Smith GL, Shlipak MG, Havranek EP, Foody JM, Masoudi FA, Rathore SS, Krumholz HM. Serum Urea Nitrogen, Creatinine, and Estimators of Renal Function: Mortality in Older Patients With Cardiovascular Disease. JAMA Internal Medicine 2006, 166: 1134-1142. PMID: 16717177, DOI: 10.1001/archinte.166.10.1134.Peer-Reviewed Original ResearchConceptsCreatinine levelsMyocardial infarctionHeart failureMDRD eGFRCardiovascular patientsSerum urea nitrogen levelsOlder cardiovascular patientsHeart failure patientsModification of DietGlomerular filtration rateUrea nitrogen levelsProportional hazards modelSerum urea nitrogenML/minMagnitude of riskRenal measuresPostdischarge mortalityRenal dysfunctionOlder patientsRenal functionFailure patientsOutcome prognosticationRetrospective cohortFiltration rateCardiovascular diseaseRenal Impairment and Outcomes in Heart Failure Systematic Review and Meta-Analysis
Smith GL, Lichtman JH, Bracken MB, Shlipak MG, Phillips CO, DiCapua P, Krumholz HM. Renal Impairment and Outcomes in Heart Failure Systematic Review and Meta-Analysis. Journal Of The American College Of Cardiology 2006, 47: 1987-1996. PMID: 16697315, DOI: 10.1016/j.jacc.2005.11.084.Peer-Reviewed Original ResearchConceptsRenal impairmentHF patientsSevere impairmentRenal functionExcess mortalityMortality riskSystematic reviewAssociated mortality riskHeart failure patientsCause mortality riskPrecise risk estimatesCause mortalityFailure patientsDL increaseRisk stratificationTherapeutic strategiesPatientsMeta-AnalysisMortalityRisk estimatesImpairmentSystematic searchMin decreaseRiskCreatinineDifficulty Taking Medications, Depression, and Health Status in Heart Failure Patients
Morgan AL, Masoudi FA, Havranek EP, Jones PG, Peterson PN, Krumholz HM, Spertus JA, Rumsfeld JS, Consortium F. Difficulty Taking Medications, Depression, and Health Status in Heart Failure Patients. Journal Of Cardiac Failure 2006, 12: 54-60. PMID: 16500581, DOI: 10.1016/j.cardfail.2005.08.004.Peer-Reviewed Original ResearchConceptsKansas City Cardiomyopathy QuestionnaireHeart failure outpatientsWorse health statusHealth statusDepressive symptomsMedication nonadherenceLeft ventricular ejection fractionPatient-reported difficultyHeart failure populationHeart failure patientsVentricular ejection fractionCross-sectional associationsMore depressive symptomsCoexistent depressionTaking MedicationsFailure patientsClinical factorsEjection fractionMedication adherenceDepression treatmentFailure populationMedical historyClinical evaluationMultivariable regressionMedications
2005
Low-to-Moderate Alcohol Intake and Health Status in Heart Failure Patients
Salisbury AC, House JA, Conard MW, Krumholz HM, Spertus JA. Low-to-Moderate Alcohol Intake and Health Status in Heart Failure Patients. Journal Of Cardiac Failure 2005, 11: 323-328. PMID: 15948080, DOI: 10.1016/j.cardfail.2004.11.009.Peer-Reviewed Original ResearchConceptsKansas City Cardiomyopathy QuestionnaireModerate alcohol intakeHealth statusHF hospitalizationAlcohol intakeAlcohol abstinenceBaseline Kansas City Cardiomyopathy QuestionnaireShort Form-12 scoresComplete alcohol abstinenceHeart failure guidelinesMulticenter observational studyHeart failure patientsModerate alcohol consumptionSF-12 scoresKCCQ scoresHF outpatientsHF patientsFailure patientsMultivariable analysisBaseline differencesObservational studyModerate drinkersAlcohol consumptionSimilar outcomesAlcohol useRace 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
Incidence, predictors at admission, and impact of worsening renal function among patients hospitalized with heart failure
Forman DE, Butler J, Wang Y, Abraham WT, O'Connor CM, Gottlieb SS, Loh E, Massie BM, Rich MW, Stevenson LW, Young JB, Krumholz HM. Incidence, predictors at admission, and impact of worsening renal function among patients hospitalized with heart failure. Journal Of The American College Of Cardiology 2004, 43: 61-67. PMID: 14715185, DOI: 10.1016/j.jacc.2003.07.031.Peer-Reviewed Original ResearchConceptsRenal functionHF patientsHospitalized heart failure patientsHistory of HFChronic HF patientsDay of admissionHeart failure patientsLength of hospitalizationSystolic blood pressureRelative risk ratiosAssociation of developmentMajority of casesRegression model analysisAdmission creatinineHospital deathHospital outcomesChart reviewClinical characteristicsFailure patientsSerum creatinineBlood pressureClinical predictorsConsecutive patientsDiabetes mellitusHeart failure
2003
Most hospitalized older persons do not meet the enrollment criteria for clinical trials in heart failure
Masoudi FA, Havranek EP, Wolfe P, Gross CP, Rathore SS, Steiner JF, Ordin DL, Krumholz HM. Most hospitalized older persons do not meet the enrollment criteria for clinical trials in heart failure. American Heart Journal 2003, 146: 250-257. PMID: 12891192, DOI: 10.1016/s0002-8703(03)00189-3.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic beta-AntagonistsAge FactorsAgedAged, 80 and overAngiotensin-Converting Enzyme InhibitorsCross-Sectional StudiesFemaleHeart FailureHospitalizationHumansMaleMineralocorticoid Receptor AntagonistsPatient SelectionRandomized Controlled Trials as TopicSpironolactoneUnited StatesVentricular Dysfunction, LeftConceptsLeft ventricular systolic functionVentricular systolic functionHeart failureEnrollment criteriaClinical trialsOlder personsSystolic functionRandomized Aldactone Evaluation Study (RALES) trialHospitalized older personsRandomized Intervention TrialTrials of agentsLeft ventricular dysfunctionCongestive heart failureHeart failure patientsAcute care hospitalsCross-sectional studySubgroups of ageCommunity-based practiceTrial eligibilityVentricular dysfunctionFailure patientsOlder patientsCare hospitalMERIT-HFTrial populationAligning quality and payment for heart failure care: Defining the challenges
Havranek EP, Krumholz HM, Dudley RA, Adams K, Gregory D, Lampert S, Lindenfeld J, Massie BM, Pina I, Restaino S, Rich MW, Konstam MA. Aligning quality and payment for heart failure care: Defining the challenges. Journal Of Cardiac Failure 2003, 9: 251-254. PMID: 13680543, DOI: 10.1054/jcaf.2003.30.Peer-Reviewed Original ResearchConceptsHigh-quality careQuality careHeart Failure SocietyHeart failure careHeart failure patientsQuality of careFailure patientsHeart failureReadmission ratesRecent roundtable discussionDisease severityInterests of patientsCarePatientsHospitalReimbursement systemReimbursement schemesEmpty bedsPhysiciansOutcomes in heart failure patients with preserved ejection fraction mortality, readmission and functional decline
Smith G, Masoudi F, Vaccarino V, Radford M, Krumholz H. Outcomes in heart failure patients with preserved ejection fraction mortality, readmission and functional decline. ACC Current Journal Review 2003, 12: 61. DOI: 10.1016/s1062-1458(03)00300-3.Peer-Reviewed Original ResearchOutcomes in heart failure patients with preserved ejection fraction Mortality, readmission, and functional decline
Smith GL, Masoudi FA, Vaccarino V, Radford MJ, Krumholz HM. Outcomes in heart failure patients with preserved ejection fraction Mortality, readmission, and functional decline. Journal Of The American College Of Cardiology 2003, 41: 1510-1518. PMID: 12742291, DOI: 10.1016/s0735-1097(03)00185-2.Peer-Reviewed Original ResearchConceptsDepressed ejection fractionRisk of readmissionEjection fractionHeart failureFunctional declineHeart failure patientsHF patientsFailure patientsHospital dischargeHospital readmissionIndependent predictorsClinical outcomesPoor prognosisFunctional statusClinical covariatesClinical trajectoriesReadmissionLower riskPatientsConsiderable burdenCombined outcomeNatural historyMortalityDeathOutcomes
2002
β-Blocker Therapy in Heart Failure: Scientific Review
Foody JM, Farrell MH, Krumholz HM. β-Blocker Therapy in Heart Failure: Scientific Review. JAMA 2002, 287: 883-889. PMID: 11851582, DOI: 10.1001/jama.287.7.883.Peer-Reviewed Original ResearchConceptsHeart failure patientsHeart failureClinical trialsFailure patientsClinical outcomesClass IIDrug Administration indicationsBeta-blocker usePrimary end pointΒ-blocker therapyScientific rationaleTreatment of patientsCare of patientsEnglish-language articlesPotential physiologic roleBasic science studiesClass of agentsSystolic dysfunctionMortality benefitPlacebo treatmentDATA EXTRACTIONClinical guidelinesSTUDY SELECTIONCurrent recommendationsPatientsβ-Blockers in Heart Failure: Clinical Applications
Farrell MH, Foody JM, Krumholz HM. β-Blockers in Heart Failure: Clinical Applications. JAMA 2002, 287: 890-897. PMID: 11851583, DOI: 10.1001/jama.287.7.890.Peer-Reviewed Original ResearchConceptsHeart failureLeft ventricular systolic dysfunctionVentricular systolic dysfunctionHeart failure patientsQuality of careSeries of casesSystolic dysfunctionFailure patientsPatient selectionConsensus guidelinesFluid statusΒ-blockersPatientsScientific evidenceClinical applicationCareGuidelinesSafetyMorbidityFailureDysfunctionTherapyMortality