2016
Editor’s Choice-Sex differences in young patients with acute myocardial infarction: A VIRGO study analysis
Bucholz EM, Strait KM, Dreyer RP, Lindau ST, D’Onofrio G, Geda M, Spatz ES, Beltrame JF, Lichtman JH, Lorenze NP, Bueno H, Krumholz HM. Editor’s Choice-Sex differences in young patients with acute myocardial infarction: A VIRGO study analysis. European Heart Journal Acute Cardiovascular Care 2016, 6: 610-622. PMID: 27485141, PMCID: PMC5459677, DOI: 10.1177/2048872616661847.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionYoung womenTime of AMIST-segment elevation myocardial infarctionHigh clinical risk scoreSegment elevation myocardial infarctionChronic obstructive pulmonary diseaseYoung AMI patientsCardiovascular risk factorsClinical risk scorePre-hospital delayProspective cohort studyCongestive heart failureElevation myocardial infarctionObstructive pulmonary diseaseHigh-risk populationYoung menMental health statusElectrocardiogram findingsMorbid obesityCardiovascular riskCohort studyRenal failureYounger patients
2014
National Trends in Patient Safety for Four Common Conditions, 2005–2011
Wang Y, Eldridge N, Metersky ML, Verzier NR, Meehan TP, Pandolfi MM, Foody JM, Ho SY, Galusha D, Kliman RE, Sonnenfeld N, Krumholz HM, Battles J. National Trends in Patient Safety for Four Common Conditions, 2005–2011. New England Journal Of Medicine 2014, 370: 341-351. PMID: 24450892, PMCID: PMC4042316, DOI: 10.1056/nejmsa1300991.Peer-Reviewed Original ResearchConceptsCongestive heart failureAcute myocardial infarctionMore adverse eventsProportion of patientsAdverse event ratesAdverse eventsHeart failureMyocardial infarctionRate of occurrenceCommon medical conditionsMedical recordsMedicare patientsMedical conditionsPatientsSurgeryInfarctionPneumoniaHospitalizationPatient safetyNational trendsMonitoring System dataSignificant declineFailureProportionRate
2013
Hospital-Based, Acute Care Use Among Patients Within 30 Days of Discharge After Coronary Artery Bypass Surgery
Fox JP, Suter LG, Wang K, Wang Y, Krumholz HM, Ross JS. Hospital-Based, Acute Care Use Among Patients Within 30 Days of Discharge After Coronary Artery Bypass Surgery. The Annals Of Thoracic Surgery 2013, 96: 96-104. PMID: 23702228, PMCID: PMC3758868, DOI: 10.1016/j.athoracsur.2013.03.091.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overCaliforniaCoronary Artery BypassCoronary Artery DiseaseEmergency Service, HospitalFemaleFollow-Up StudiesHumansIntensive Care UnitsLength of StayLinear ModelsMaleMiddle AgedMorbidityPatient DischargePatient ReadmissionPostoperative ComplicationsPostoperative PeriodPrognosisRecurrenceRetrospective StudiesRisk FactorsSurvival RateTime FactorsYoung AdultConceptsDays of dischargeAcute care needsCABG surgeryED visit ratesED visitsHospital readmissionReadmission ratesCare needsCoronary artery bypass graft surgeryVisit ratesArtery bypass graft surgeryCoronary artery bypass surgeryRisk-standardized readmission ratesAcute care ratesHospital 30 daysBypass graft surgeryAcute care useArtery bypass surgeryCongestive heart failureEmergency department visitsEmergency Department DatabasesChest discomfortGraft surgeryBypass surgeryHospital volume
2012
Hospitalist utilization and hospital performance on 6 publicly reported patient outcomes
Goodrich K, Krumholz HM, Conway PH, Lindenauer P, Auerbach AD. Hospitalist utilization and hospital performance on 6 publicly reported patient outcomes. Journal Of Hospital Medicine 2012, 7: 482-488. PMID: 22689448, PMCID: PMC3531241, DOI: 10.1002/jhm.1943.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionPercentage of patientsHeart failurePatient outcomesOutcome measuresPresence of hospitalistsReadmission measuresCongestive heart failureCross-sectional studyMultivariable regression modelsComparison of hospitalQuality outcome measuresReadmission ratesIndependent predictorsMyocardial infarctionInpatient careHospitalist serviceHospitalist useMedical conditionsHospital personnelHospitalist programHospitalistsHospitalExpectation of improvementOutcomes
2011
Factors Associated With 30-Day Readmission Rates After Percutaneous Coronary Intervention
Khawaja FJ, Shah ND, Lennon RJ, Slusser JP, Alkatib AA, Rihal CS, Gersh BJ, Montori VM, Holmes DR, Bell MR, Curtis JP, Krumholz HM, Ting HH. Factors Associated With 30-Day Readmission Rates After Percutaneous Coronary Intervention. JAMA Internal Medicine 2011, 172: 112-117. PMID: 22123752, PMCID: PMC3688066, DOI: 10.1001/archinternmed.2011.569.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAgedAngina, UnstableAngioplasty, Balloon, CoronaryCoronary Artery BypassEducational StatusFemaleFollow-Up StudiesHeart FailureHumansIschemic Attack, TransientKidney DiseasesLength of StayMaleMedicareMultivariate AnalysisMyocardial InfarctionNeoplasm MetastasisPatient ReadmissionPeptic UlcerProportional Hazards ModelsPulmonary Disease, Chronic ObstructiveRegistriesSex FactorsStrokeUnited StatesConceptsPercutaneous coronary interventionThirty-day readmissionReadmission ratesCoronary interventionHigh riskChronic obstructive pulmonary diseaseThirty-day readmission ratesCox proportional hazards modelMultivariate logistic regression modelTransient ischemic attackCongestive heart failureObstructive pulmonary diseasePeptic ulcer diseaseSevere renal diseaseAcute myocardial infarctionLength of stayMain outcome measuresProportional hazards modelSaint Mary's HospitalLogistic regression modelsIschemic attackTime-dependent covariatesUnstable anginaCerebrovascular accidentHeart failure
2007
Acute Myocardial Infarction and Congestive Heart Failure Outcomes at Specialty Cardiac Hospitals
Nallamothu BK, Wang Y, Cram P, Birkmeyer JD, Ross JS, Normand SL, Krumholz HM. Acute Myocardial Infarction and Congestive Heart Failure Outcomes at Specialty Cardiac Hospitals. Circulation 2007, 116: 2280-2287. PMID: 17967975, DOI: 10.1161/circulationaha.107.709220.Peer-Reviewed Original ResearchConceptsCongestive heart failureRisk-standardized mortality ratesAcute myocardial infarctionStandardized mortality ratioSpecialty cardiac hospitalsCardiac hospitalGeneral HospitalMortality ratioMortality rateMyocardial infarctionCongestive heart failure outcomesHeart failure outcomesOutcomes of patientsProportion of facilitiesHeart failureNoncardiovascular diseasesLow prevalencePatient differencesMedicare dataPatientsHospitalFailure outcomesInfarctionOutcomesType of facility
2006
Underrepresentation of Renal Disease in Randomized Controlled Trials of Cardiovascular Disease
Coca SG, Krumholz HM, Garg AX, Parikh CR. Underrepresentation of Renal Disease in Randomized Controlled Trials of Cardiovascular Disease. JAMA 2006, 296: 1377-1384. PMID: 16985230, DOI: 10.1001/jama.296.11.1377.Peer-Reviewed Original ResearchConceptsChronic congestive heart failureCongestive heart failureRenal diseaseRenal functionHeart failureSubgroup analysisCardiovascular diseaseCardiology/American Heart Association guidelinesAmerican Heart Association guidelinesAldosterone system antagonistsBaseline renal functionHeart Association guidelinesCardiovascular disease trialsCurrent American CollegeRandomized Controlled TrialsAcute myocardial infarctionEffects of interventionsRepresentation of patientsOriginal articlesBaseline characteristicsCardiovascular mortalityPatient characteristicsControlled TrialsPrognostic featuresMyocardial infarction
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 populationGender differences in recovery after coronary artery bypass surgery
Vaccarino V, Lin ZQ, Kasl SV, Mattera JA, Roumanis SA, Abramson JL, Krumholz HM. Gender differences in recovery after coronary artery bypass surgery. Journal Of The American College Of Cardiology 2003, 41: 307-314. PMID: 12535827, DOI: 10.1016/s0735-1097(02)02698-0.Peer-Reviewed Original ResearchConceptsPhysical functionCABG surgeryDepressive symptomsHospital readmissionCoronary artery bypass graft surgeryArtery bypass graft surgeryCoronary artery bypass surgeryBypass graft surgeryArtery bypass surgeryCongestive heart failureLow physical functionMore depressive symptomsFirst CABGGraft surgeryBaseline characteristicsBypass surgeryPatient characteristicsHeart failureIllness severityMedical recordsWorse outcomesClinical dataFemale genderHigh riskSide effects
2002
The prognostic importance of different definitions of worsening renal function in congestive heart failure
Gottlieb SS, Abraham W, Butler J, Forman DE, Loh E, Massie BM, O'Connor CM, Rich MW, Stevenson LW, Young J, Krumholz HM. The prognostic importance of different definitions of worsening renal function in congestive heart failure. Journal Of Cardiac Failure 2002, 8: 136-141. PMID: 12140805, DOI: 10.1054/jcaf.2002.125289.Peer-Reviewed Original ResearchConceptsCongestive heart failureRenal functionLength of stayHeart failurePrognostic importanceDepressed ejection fractionProlonged hospital stayFinal creatinineHospital mortalityHospital stayRenal failureSerum creatinineDL increaseEjection fractionACE inhibitorsPoor prognosisPatient populationWorse outcomesPrior historyTherapeutic interventionsCreatinineStayPatientsMortalityDlThe kansas city cardiomyopathy questionnaire is sensitive to clinical change in congestive heart failure
Spertus J, Conard M, Rinaldi J, Tsuyuki R, Krumholz H, Pina I, Havranek E, Tooley J. The kansas city cardiomyopathy questionnaire is sensitive to clinical change in congestive heart failure. Journal Of The American College Of Cardiology 2002, 39: 460. DOI: 10.1016/s0735-1097(02)82069-1.Peer-Reviewed Original ResearchMortality associated with the quality of care of patients hospitalized with congestive heart failure
Luthi J, Mcclellan WM, Fitzgerald D, Krumholz HM, Delaney RJ, Bratzler DW, Elward K, Cangialose C, Ballard D. Mortality associated with the quality of care of patients hospitalized with congestive heart failure. International Journal For Quality In Health Care 2002, 14: 15-24. PMID: 11871625, DOI: 10.1093/intqhc/14.1.15.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAngiotensin-Converting Enzyme InhibitorsCohort StudiesGuideline AdherenceHeart FailureHospital MortalityHospitalizationHumansMedicareOutcome and Process Assessment, Health CarePatient DischargeProportional Hazards ModelsQuality of Health CareRetrospective StudiesRisk AssessmentSurvival AnalysisUnited StatesVentricular Dysfunction, LeftConceptsLeft ventricular systolic dysfunctionCongestive heart failureRisk of deathElderly patientsHazard ratioHeart failurePresence of LVSDAdjusted hazard ratioRetrospective cohort studyUse of angiotensinVentricular systolic dysfunctionClinical practice guidelinesQuality of careACEI doseACEI treatmentSystolic dysfunctionCohort studyDischarge medicationsEjection fractionVentricular functionMean agePractice guidelinesACEIMedicare beneficiariesPatientsThe Burden of Chronic Congestive Heart Failure in Older Persons: Magnitude and Implications for Policy and Research
Masoudi FA, Havranek EP, Krumholz HM. The Burden of Chronic Congestive Heart Failure in Older Persons: Magnitude and Implications for Policy and Research. Heart Failure Reviews 2002, 7: 9-16. PMID: 11790919, DOI: 10.1023/a:1013793621248.Peer-Reviewed Original ResearchConceptsHeart failureOlder populationChronic congestive heart failureOlder personsPoor long-term survivalMore hospital admissionsCongestive heart failureLong-term survivalHospital admissionHigh riskFailureSingle conditionPopulationPersonsHospitalizationAdmissionDearth of researchYearsDiagnosisMonths
2000
Pulse pressure and risk for myocardial infarction and heart failure in the elderly
Vaccarino V, Holford T, Krumholz H. Pulse pressure and risk for myocardial infarction and heart failure in the elderly. Journal Of The American College Of Cardiology 2000, 36: 130-138. PMID: 10898424, DOI: 10.1016/s0735-1097(00)00687-2.Peer-Reviewed Original ResearchConceptsCongestive heart failureCoronary heart diseaseSystolic blood pressureCardiovascular end pointsDiastolic blood pressurePulse pressureBlood pressureEnd pointHeart failureIndependent predictorsOverall mortalityIncidence of CHFIncidence of CHDEffect of PPElevated systolic blood pressureCurrent hypertension guidelinesIncident CHF eventsCHD risk factorsCurrent medication useIncident CHD eventsPowerful independent predictorBlood pressure parametersBlood pressure variablesElevated pulse pressureDiastolic hypertensionVariations among hospitals in the quality of care for heart failure.
Luthi JC, McClellan WM, Fitzgerald D, Herrin J, Delaney RJ, Krumholz HM, Bratzler DW, Elward K, Cangialose CB, Ballard DJ. Variations among hospitals in the quality of care for heart failure. Effective Clinical Practice : ECP 2000, 3: 69-77. PMID: 10915326.Peer-Reviewed Original ResearchConceptsQuality of careCongestive heart failureLeft ventricular functionHeart failureVentricular functionEnzyme inhibitorsLeft ventricular systolic dysfunctionAngiotensin-converting enzyme inhibitorDaily weight monitoringPercent of patientsVentricular systolic dysfunctionProportion of patientsHospital medical recordsLow sodium dietQuality Improvement ProgramSubstantial hospitalSystolic dysfunctionDischarge medicationsHospital variationDischarge instructionsMedical recordsPractice patternsPatientsTarget doseWeight monitoring
1999
Sex differences in the clinical care and outcomes of congestive heart failure in the elderly
Vaccarino V, Chen Y, Wang Y, Radford M, Krumholz H. Sex differences in the clinical care and outcomes of congestive heart failure in the elderly. American Heart Journal 1999, 138: 835-842. PMID: 10539813, DOI: 10.1016/s0002-8703(99)70007-4.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAngiotensin-Converting Enzyme InhibitorsAspirinBlood PressureCardiac CatheterizationConnecticutCoronary AngiographyDiureticsDrug Therapy, CombinationFemaleFollow-Up StudiesHeart FailureHumansMaleMyocardial RevascularizationPatient ReadmissionPlatelet Aggregation InhibitorsRetrospective StudiesSeverity of Illness IndexSex CharacteristicsStroke VolumeSurvival RateTreatment OutcomeConceptsHistory of hypertensionSystolic blood pressureHeart failureMortality rateBlood pressureHeart diseaseHigher systolic blood pressureLeft ventricular systolic functionSex differencesPrevious coronary heart diseaseSimilar hospital coursesVentricular systolic functionCongestive heart failureIschemic heart diseaseCoronary heart diseaseHospital courseElderly patientsReadmission ratesRehospitalization ratesSystolic functionMale patientsVentricular functionACE inhibitorsMultivariable analysisTreatment patternsComparing AMI Mortality Among Hospitals in Patients 65 Years of Age and Older
Krumholz H, Chen J, Wang Y, Radford M, Chen Y, Marciniak T. Comparing AMI Mortality Among Hospitals in Patients 65 Years of Age and Older. Circulation 1999, 99: 2986-2992. PMID: 10368115, DOI: 10.1161/01.cir.99.23.2986.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionWhite blood cell countPatients 65 yearsSystolic blood pressureCongestive heart failureMedical chart reviewReceiver-operating characteristic curveBlood cell countRisk-adjusted outcomesYears of ageAdministrative billing codesRisk-adjustment modelsHospital outcomesSerum creatinineChart reviewDerivation cohortHeart failurePatient characteristicsBlood pressureCardiac arrestValidation cohortCandidate predictor variablesAMI mortalityBilling codesQuality of care for patients hospitalized with heart failure at academic medical centers
Nohria A, Chen Y, Morton D, Walsh R, Vlasses P, Krumholz H. Quality of care for patients hospitalized with heart failure at academic medical centers. American Heart Journal 1999, 137: 1028-1034. PMID: 10347327, DOI: 10.1016/s0002-8703(99)70358-3.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionCongestive heart failureAcademic medical centerTime of dischargeStandard of careMedical CenterHeart failureACE inhibitorsAssessment of LVEFDiagnosis of CHFDaily weightEnzyme inhibitor therapyRetrospective chart reviewVentricular ejection fractionLarge clinical trialsPatient education guidelinesQuality of careHealth care policyChart reviewDietary counselingHospital dischargeEjection fractionInhibitor therapyTreatment guidelinesMedication complianceVariations in and correlates of length of stay in academic hospitals among patients with heart failure resulting from systolic dysfunction.
Krumholz HM, Chen YT, Bradford WD, Cerese J. Variations in and correlates of length of stay in academic hospitals among patients with heart failure resulting from systolic dysfunction. The American Journal Of Managed Care 1999, 5: 715-23. PMID: 10538451.Peer-Reviewed Original ResearchConceptsLength of stayCongestive heart failureHeart failureSystolic dysfunctionPatient characteristicsAcademic hospitalCollaborative quality improvement projectIndividual hospitalsAdmission clinical characteristicsRetrospective cohort studyPrincipal discharge diagnosisNumber of patientsQuality improvement projectUniversity HealthSystem ConsortiumCorrelates of lengthHospital stayPeripheral edemaClinical characteristicsCohort studyRenal failureClinical factorsMajor complicationsHospital eventsRegression modelsAtrial fibrillation
1998
Resuscitation Preferences Among Patients With Severe Congestive Heart Failure
Krumholz H, Phillips R, Hamel M, Teno J, Bellamy P, Broste S, Califf R, Vidaillet H, Davis R, Muhlbaier L, Connors A, Lynn J, Goldman L. Resuscitation Preferences Among Patients With Severe Congestive Heart Failure. Circulation 1998, 98: 648-655. PMID: 9715857, DOI: 10.1161/01.cir.98.7.648.Peer-Reviewed Original ResearchConceptsSevere congestive heart failureCongestive heart failureResuscitation preferencesHeart failurePhysicians' perceptionsPatient preferencesMonths of dischargePoor functional statusQuarter of patientsSevere heart failureDiscussion of preferencesWorse prognosisFunctional statusPatientsOlder agePhysiciansSubstantial proportionSignificant correlatesResuscitationMonthsHigh agreementFailureHigher incomeExacerbationPrognosis