2021
Predictors of increased mortality in untreated moderate aortic stenosis
Gupta A, Liu T, Pounds C, Sharma R, Yong C, Krumholz H, Leon M. Predictors of increased mortality in untreated moderate aortic stenosis. European Heart Journal 2021, 42: ehab724.1573. DOI: 10.1093/eurheartj/ehab724.1573.Peer-Reviewed Original ResearchModerate aortic stenosisLong-term mortalityCoronary artery diseaseSeverity of ASAortic stenosisArtery diseaseAtrial fibrillationHeart failureUntreated severe aortic stenosisWorse long-term mortalityPoor long-term survivalSevere aortic stenosisAortic valve replacementHigh-risk featuresMild aortic stenosisPrognosis of patientsKaplan-Meier analysisLong-term survivalElectronic health recordsValve replacementAS severityMale sexRisk factorsSeverity groupsHigh riskAssociation of Cardiac Care Regionalization With Access, Treatment, and Mortality Among Patients With ST-Segment Elevation Myocardial Infarction
Shen YC, Krumholz H, Hsia RY. Association of Cardiac Care Regionalization With Access, Treatment, and Mortality Among Patients With ST-Segment Elevation Myocardial Infarction. Circulation Cardiovascular Quality And Outcomes 2021, 14: e007195. PMID: 33641339, PMCID: PMC7969448, DOI: 10.1161/circoutcomes.120.007195.Peer-Reviewed Original ResearchConceptsPercutaneous coronary interventionST-segment elevation myocardial infarction (STEMI) systemsSame-day percutaneous coronary interventionST-segment elevation myocardial infarctionSTEMI regionalizationLong-term mortalityOutcomes of patientsElevation myocardial infarctionPCI-capable hospitalsEmergency medical services agenciesMyocardial infarction systemLocal emergency medical services agenciesPoints greater reductionPercentage point decreasePCI capabilityCoronary interventionMyocardial infarctionAdministrative databasesPatientsSTEMIPoint decreaseMortalityTimely accessReadmissionGreater reduction
2016
Life Years Gained From Smoking-Cessation Counseling After Myocardial Infarction
Bucholz EM, Beckman AL, Kiefe CI, Krumholz HM. Life Years Gained From Smoking-Cessation Counseling After Myocardial Infarction. American Journal Of Preventive Medicine 2016, 52: 38-46. PMID: 27692757, PMCID: PMC5459385, DOI: 10.1016/j.amepre.2016.08.013.Peer-Reviewed Original ResearchConceptsSmoking cessation counselingAcute myocardial infarctionLong-term survival benefitLife yearsSurvival benefitMyocardial infarctionLife expectancyLower short-term mortalityHigher crude mortalityLong-term mortalityProspective cohort studyShort-term mortalityCooperative Cardiovascular ProjectProportional hazards modelLonger life expectancyCohort studyElderly patientsElderly smokersOlder smokersCrude mortalitySurvival differencesHospital characteristicsSmokersHazards modelLower mortalityUnderweight, Markers of Cachexia, and Mortality in Acute Myocardial Infarction: A Prospective Cohort Study of Elderly Medicare Beneficiaries
Bucholz EM, Krumholz HA, Krumholz HM. Underweight, Markers of Cachexia, and Mortality in Acute Myocardial Infarction: A Prospective Cohort Study of Elderly Medicare Beneficiaries. PLOS Medicine 2016, 13: e1001998. PMID: 27093615, PMCID: PMC4836735, DOI: 10.1371/journal.pmed.1001998.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedAged, 80 and overBody Mass IndexCachexiaComorbidityFemaleFrail ElderlyGeriatric AssessmentHospital MortalityHumansInsurance BenefitsKaplan-Meier EstimateMaleMedicareMyocardial InfarctionNutrition AssessmentNutritional StatusPrevalencePrognosisProportional Hazards ModelsProspective StudiesRisk AssessmentRisk FactorsThinnessTime FactorsUnited StatesConceptsLower body mass indexNormal weight patientsBody mass indexAcute myocardial infarctionUnderweight patientsWeight patientsSubset of patientsHigh riskFrailty measuresLaboratory markersMyocardial infarctionMedicare beneficiariesNutritional statusCox proportional hazards regressionUnderweight body mass indexMarkers of cachexiaLong-term mortalityProspective cohort studyCohort-based studyMeasures of frailtyProportional hazards regressionCooperative Cardiovascular ProjectElderly Medicare beneficiariesImportant risk factorSignificant chronic illnessNational Assessment of Statin Therapy in Patients Hospitalized with Acute Myocardial Infarction: Insight from China PEACE-Retrospective AMI Study, 2001, 2006, 2011
Zhang L, Li J, Li X, Nasir K, Zhang H, Wu Y, Hu S, Wang Q, Downing NS, Desai NR, Masoudi FA, Spertus JA, Krumholz HM, Jiang L, . National Assessment of Statin Therapy in Patients Hospitalized with Acute Myocardial Infarction: Insight from China PEACE-Retrospective AMI Study, 2001, 2006, 2011. PLOS ONE 2016, 11: e0150806. PMID: 27058862, PMCID: PMC4825974, DOI: 10.1371/journal.pone.0150806.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionIntensive statin therapyLow-density lipoprotein cholesterolAcute myocardial infarction patientsStatin therapyMyocardial infarction patientsMyocardial infarctionStatin useLipoprotein cholesterolInfarction patientsHalf of patientsLong-term mortalityUse of statinsHospitalized patientsIntensive therapyChinese patientsCardiovascular diseaseEffective treatmentPatientsInfarctionStatinsTherapyChinese hospitalsTreatment intensityCholesterol
2015
Smoking status and life expectancy after acute myocardial infarction in the elderly
Bucholz EM, Beckman AL, Kiefe CI, Krumholz HM. Smoking status and life expectancy after acute myocardial infarction in the elderly. Heart 2015, 102: 133. PMID: 26596792, PMCID: PMC5459390, DOI: 10.1136/heartjnl-2015-308263.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionCurrent smokersYears of lifeLife expectancyMyocardial infarctionLower short-term mortalityHigher long-term mortalityLower crude mortalityLong-term mortalityBurden of smokingShort-term mortalityCooperative Cardiovascular ProjectElderly Medicare patientsAge-specific associationsMedical record studyCurrent smokingCrude mortalityPatient characteristicsSmoking statusCessation effortsMedicare patientsLong-term effectsSmokingSmokersLower life expectancyNational assessment of statin therapy for patients with acute myocardial infarction, 2001–11: insight from the China PEACE-Retrospective Acute Myocardial Infarction study
Zhang L, Li J, Li X, Nasir K, Zhang H, Wu Y, Hu S, Wang Q, Downing N, Desai N, Masoudi F, Spertus J, Krumholz H, Jiang L, Group O. National assessment of statin therapy for patients with acute myocardial infarction, 2001–11: insight from the China PEACE-Retrospective Acute Myocardial Infarction study. The Lancet 2015, 386: s42. DOI: 10.1016/s0140-6736(15)00623-6.Peer-Reviewed Original ResearchIntensive statin therapyAcute myocardial infarctionAcute Myocardial Infarction StudyStatin therapyMyocardial Infarction StudyMyocardial infarctionStatin useCardiovascular diseaseLow-density lipoprotein cholesterolStatin therapy useLong-term mortalityUse of statinsNumber of patientsTwo-stage random sampling designMultilevel logistic regression modelsCochran-Armitage testLogistic regression modelsWestern rural regionStatin regimensEligible patientsHospital mortalityLipoprotein cholesterolFamily Planning CommissionIntensive therapyTherapy useEffectiveness of implantable cardioverter-defibrillators in survivors of inhospital cardiac arrest
Chan PS, Krumholz HM, Spertus JA, Curtis LH, Li Y, Hammill BG, Nallamothu BK, investigators A. Effectiveness of implantable cardioverter-defibrillators in survivors of inhospital cardiac arrest. American Heart Journal 2015, 169: 870-878.e1. PMID: 26027626, PMCID: PMC4451609, DOI: 10.1016/j.ahj.2015.02.016.Peer-Reviewed Original ResearchConceptsInhospital cardiac arrestLong-term mortalityHospital cardiac arrestCardiac arrestICD treatmentLower long-term mortalityImplantable cardioverter-defibrillator therapyHigh illness acuityHigher unadjusted mortalityICD-treated patientsCardiac Arrest RegistryCardioverter-defibrillator therapyPulseless ventricular tachycardiaHigh-risk populationComparative effectiveness studiesLong-term survivalPropensity score analysisLower mortality rateArrest etiologyEligible survivorsICD trialsHospital deathICD therapyIndex hospitalizationUntreated patients
2014
Sex Differences in Long-Term Mortality After Myocardial Infarction
Bucholz EM, Butala NM, Rathore SS, Dreyer RP, Lansky AJ, Krumholz HM. Sex Differences in Long-Term Mortality After Myocardial Infarction. Circulation 2014, 130: 757-767. PMID: 25052403, PMCID: PMC4415526, DOI: 10.1161/circulationaha.114.009480.Peer-Reviewed Original Research
2013
Urinary Biomarkers of AKI and Mortality 3 Years after Cardiac Surgery
Coca SG, Garg AX, Thiessen-Philbrook H, Koyner JL, Patel UD, Krumholz HM, Shlipak MG, Parikh CR. Urinary Biomarkers of AKI and Mortality 3 Years after Cardiac Surgery. Journal Of The American Society Of Nephrology 2013, 25: 1063-1071. PMID: 24357673, PMCID: PMC4005309, DOI: 10.1681/asn.2013070742.Peer-Reviewed Original ResearchConceptsKidney injury molecule-1Long-term mortalityIL-18Urinary biomarkersClinical AKICardiac surgeryHighest tertileUrinary neutrophil gelatinase-associated lipocalinProspective long-term followNeutrophil gelatinase-associated lipocalinContinuous net reclassification improvementInjury molecule-1Kidney injury biomarkersPostoperative day 1Gelatinase-associated lipocalinImmediate postoperative periodAdditional prognostic informationLong-term followNet reclassification improvementMortality 3 yearsLiver fatty acidAKI cohortCause mortalityHospital outcomesKidney injury
2010
Geriatric Conditions and Subsequent Mortality in Older Patients With Heart Failure
Chaudhry SI, Wang Y, Gill TM, Krumholz HM. Geriatric Conditions and Subsequent Mortality in Older Patients With Heart Failure. Journal Of The American College Of Cardiology 2010, 55: 309-316. PMID: 20117435, PMCID: PMC2832791, DOI: 10.1016/j.jacc.2009.07.066.Peer-Reviewed Original ResearchConceptsLong-term mortalityGeriatric conditionsNet reclassification improvementMobility disabilityOlder patientsReclassification improvementRisk factorsMultivariable logistic regression modelHeart failure hospitalizationIndependent risk factorTraditional risk factorsMedical record dataFinal multivariable modelYears of ageLogistic regression modelsFailure hospitalizationTerm mortalityHeart failureIndependent predictorsPrognostic importanceMean ageMultivariable modelMedicare beneficiariesMortality rateSubsequent mortality
2008
Long-term Prognosis of Acute Kidney Injury After Acute Myocardial Infarction
Parikh CR, Coca SG, Wang Y, Masoudi FA, Krumholz HM. Long-term Prognosis of Acute Kidney Injury After Acute Myocardial Infarction. JAMA Internal Medicine 2008, 168: 987-995. PMID: 18474763, DOI: 10.1001/archinte.168.9.987.Peer-Reviewed Original ResearchConceptsSevere acute kidney injuryAcute kidney injuryAcute myocardial infarctionMild acute kidney injuryModerate acute kidney injuryKidney injuryLong-term riskMyocardial infarctionSeverity of AKIAdjusted hazard ratioLong-term mortalitySerum creatinine levelsLong-term prognosisCooperative Cardiovascular ProjectElderly Medicare patientsHigh-risk groupAssociation of severityHospital mortalityHospital survivorsCause mortalityCardiovascular mortalityCreatinine levelsHazard ratioInpatient mortalityCommon complication
2006
Prediction of medical morbidity and mortality after acute myocardial infarction in patients at increased psychosocial risk in the Enhancing Recovery in Coronary Heart Disease Patients (ENRICHD) study
Jaffe AS, Krumholz HM, Catellier DJ, Freedland KE, Bittner V, Blumenthal JA, Calvin JE, Norman J, Sequeira R, O'Connor C, Rich MW, Sheps D, Wu C, Investigators F. Prediction of medical morbidity and mortality after acute myocardial infarction in patients at increased psychosocial risk in the Enhancing Recovery in Coronary Heart Disease Patients (ENRICHD) study. American Heart Journal 2006, 152: 126-135. PMID: 16824842, DOI: 10.1016/j.ahj.2005.10.004.Peer-Reviewed Original ResearchConceptsPost-MI patientsAcute myocardial infarctionMyocardial infarctionLow social supportCardiovascular mortalityEnd pointNonfatal myocardial infarctionPrimary end pointSecondary end pointsLong-term mortalityPrior myocardial infarctionSignificant multivariable predictorsProportional hazards modelSocial supportKillip classCause mortalityElevated creatinineRecurrent infarctionAdverse eventsBaseline characteristicsBypass surgeryEjection fractionHeart failureMedical morbidityMedical predictorsStatins and Mortality Among Elderly Patients Hospitalized With Heart Failure
Foody JM, Shah R, Galusha D, Masoudi FA, Havranek EP, Krumholz HM. Statins and Mortality Among Elderly Patients Hospitalized With Heart Failure. Circulation 2006, 113: 1086-1092. PMID: 16490817, DOI: 10.1161/circulationaha.105.591446.Peer-Reviewed Original ResearchConceptsHeart failureStatin therapyElderly patientsOlder patientsCoronary artery disease statusCox proportional hazards modelCurrent HF therapiesLong-term mortalityPrimary discharge diagnosisGroup of patientsTotal cholesterol levelsRandomized clinical trialsEligible Medicare beneficiariesProportional hazards modelYears of ageHF therapyStatin useClinical characteristicsDischarge diagnosisCholesterol levelsHospital characteristicsClinical trialsPhysician specialtyTeaching hospitalStatins
2003
Patterns of Secondary Prevention in Older Patients Undergoing Coronary Artery Bypass Grafting During Hospitalization for Acute Myocardial Infarction
Foody JM, Ferdinand FD, Galusha D, Rathore SS, Masoudi FA, Havranek EP, Nilasena D, Radford MJ, Krumholz HM. Patterns of Secondary Prevention in Older Patients Undergoing Coronary Artery Bypass Grafting During Hospitalization for Acute Myocardial Infarction. Circulation 2003, 108: 24ii--28. PMID: 12970203, DOI: 10.1161/01.cir.0000087654.26917.00.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionCoronary artery bypassOlder patientsArtery bypassSecondary preventionMyocardial infarctionAggressive risk factor modificationUtilization of therapyRisk factor modificationLong-term mortalityYears of ageCABG patientsDischarge aspirinDischarge therapyEligible patientsCardiovascular eventsSurgical mortalityLipid loweringACE inhibitorsFactor modificationMedical recordsCABGPatientsEnzyme inhibitorsDisease severity
2001
The association between white blood cell count and acute myocardial infarction mortality in patients ≥65 years of age: findings from the cooperative cardiovascular project
Barron H, Harr S, Radford M, Wang Y, Krumholz H. The association between white blood cell count and acute myocardial infarction mortality in patients ≥65 years of age: findings from the cooperative cardiovascular project. Journal Of The American College Of Cardiology 2001, 38: 1654-1661. PMID: 11704377, DOI: 10.1016/s0735-1097(01)01613-8.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionWhite blood cell countBlood cell countWBC countWhite blood cellsYears of ageIndependent predictorsCell countDevelopment of AMIAcute myocardial infarction mortalityHospital clinical eventsLong-term mortalityRisk-stratify patientsCoronary artery diseaseCooperative Cardiovascular Project databaseStrong independent predictorCooperative Cardiovascular ProjectMyocardial infarction mortalityImportant clinical implicationsHospital mortalityArtery diseaseHospital eventsClinical eventsHighest quintileLowest quintile
2000
Long-term Outcome of Myocardial Infarction in Women and Men: A Population Perspective
Vaccarino V, Berkman LF, Krumholz HM. Long-term Outcome of Myocardial Infarction in Women and Men: A Population Perspective. American Journal Of Epidemiology 2000, 152: 965-973. PMID: 11092438, DOI: 10.1093/aje/152.10.965.Peer-Reviewed Original ResearchConceptsMyocardial infarctionSurvival advantageImpact of MIMultivariable-adjusted hazard ratiosWomen's survival advantageLong-term mortalityLong-term outcomesPresence of MIAbsence of MISurvival of personsProportional hazards modelPopulation perspectiveTime-dependent covariablesFatal infarctionHazard ratioSame followElderly cohortMI hospitalizationMI casesHazards modelGreater riskInfarctionWomenMenSurvival
1998
Admission to Hospitals With On-Site Cardiac Catheterization Facilities
Krumholz H, Chen J, Murillo J, Cohen D, Radford M. Admission to Hospitals With On-Site Cardiac Catheterization Facilities. Circulation 1998, 98: 2010-2016. PMID: 9808598, DOI: 10.1161/01.cir.98.19.2010.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAngioplasty, Balloon, CoronaryCardiac Care FacilitiesCardiac CatheterizationCohort StudiesCoronary Artery BypassFemaleHealth Care CostsHospital MortalityHospitalizationHumansLength of StayMaleMedical RecordsPilot ProjectsRetrospective StudiesTime FactorsTreatment OutcomeConceptsSite cardiac catheterization facilitiesCardiac catheterization facilitiesAcute myocardial infarctionCatheterization facilitiesType of hospitalReadmission ratesCardiac proceduresMyocardial infarctionHospital costsMortality rateGood short-term clinical outcomesShort-term clinical outcomesLong-term mortality ratesAdjusted readmission ratesCardiac catheterization ratesBaseline patient characteristicsLong-term mortalityRetrospective cohort studyLower readmission ratesElderly Medicare patientsSignificant differencesCatheterization ratesRevascularization ratesCardiac catheterizationCohort study