2021
Ticagrelor vs Clopidogrel for Patients With Acute Coronary Syndrome Undergoing Percutaneous Intervention—Reply
You SC, Gupta A, Krumholz HM. Ticagrelor vs Clopidogrel for Patients With Acute Coronary Syndrome Undergoing Percutaneous Intervention—Reply. JAMA 2021, 325: 890-891. PMID: 33651089, DOI: 10.1001/jama.2020.26023.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeClopidogrelHumansPlatelet Aggregation InhibitorsTicagrelorTiclopidine
2020
Antiplatelet strategies in acute coronary syndromes: design and methodology of an international collaborative network meta-analysis of randomized controlled trials
Madhavan MV, Bikdeli B, Redfors B, Biondi-Zoccai G, Varunok NJ, Burton JR, Crowley A, Francese DP, Gupta A, Der Nigoghossian C, Chatterjee S, Palmerini T, Benedetto U, You S, Ohman M, Kastrati A, Steg PG, Gibson C, Angiolillo DJ, Krumholz HM, Stone GW. Antiplatelet strategies in acute coronary syndromes: design and methodology of an international collaborative network meta-analysis of randomized controlled trials. Minerva Cardioangiologica 2020 DOI: 10.23736/s0026-4725.20.05353-0.Peer-Reviewed Original ResearchAntiplatelet strategies in acute coronary syndromes: design and methodology of an international collaborative network meta-analysis of randomized controlled trials.
Madhavan M, Bikdeli B, Redfors B, Biondi-Zoccai G, Varunok N, Burton J, Crowley A, Francese D, Gupta A, DER Nigoghossian C, Chatterjee S, Palmerini T, Benedetto U, You S, Ohman E, Kastrati A, Steg P, Gibson C, Angiolillo D, Krumholz H, Stone G. Antiplatelet strategies in acute coronary syndromes: design and methodology of an international collaborative network meta-analysis of randomized controlled trials. Minerva Cardioangiologica 2020, 69: 398-407. PMID: 33258563, DOI: 10.23736/s2724-5683.20.05353-0.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeHumansNetwork Meta-AnalysisPlatelet Aggregation InhibitorsPurinergic P2Y Receptor AntagonistsRandomized Controlled Trials as TopicConceptsAcute coronary syndromeNetwork meta-analysisIncidence rate ratiosReceptor inhibitorsRandom-effects methodMeta-analysisCoronary syndromeMonths of follow-up timePatients of advanced ageControlled trialsBackground of aspirinEfficacy of prasugrelST-elevation myocardial infarctionCochrane Central Register of Controlled TrialsCentral Register of Controlled TrialsFollow-up timeFrequentist network meta-analysisManagement of patientsRegister of Controlled TrialsShort-term outcomesLong-term outcomesCochrane Central RegisterRandomized controlled trialsHemorrhagic outcomesAntiplatelet strategiesAssociation of Ticagrelor vs Clopidogrel With Net Adverse Clinical Events in Patients With Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention
You SC, Rho Y, Bikdeli B, Kim J, Siapos A, Weaver J, Londhe A, Cho J, Park J, Schuemie M, Suchard MA, Madigan D, Hripcsak G, Gupta A, Reich CG, Ryan PB, Park RW, Krumholz HM. Association of Ticagrelor vs Clopidogrel With Net Adverse Clinical Events in Patients With Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention. JAMA 2020, 324: 1640-1650. PMID: 33107944, PMCID: PMC7592033, DOI: 10.1001/jama.2020.16167.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAdultAgedAged, 80 and overAlgorithmsAspirinCase-Control StudiesCause of DeathClopidogrelDatabases, FactualDyspneaFemaleHemorrhageHumansIschemiaMaleMiddle AgedMyocardial InfarctionNetwork Meta-AnalysisPercutaneous Coronary InterventionPropensity ScorePurinergic P2Y Receptor AntagonistsRecurrenceRepublic of KoreaRetrospective StudiesStrokeTicagrelorUnited StatesConceptsNet adverse clinical eventsAcute coronary syndromePercutaneous coronary interventionAdverse clinical eventsHemorrhagic eventsIschemic eventsHazard ratioCause mortalityCoronary syndromeCoronary interventionClinical eventsRisk of NACEClinical practiceLarge randomized clinical trialsPrimary end pointRetrospective cohort studyPropensity-matched pairsSummary hazard ratioRandomized clinical trialsRoutine clinical practiceSignificant differencesP2Y12 platelet inhibitorsTicagrelor groupCohort studySecondary outcomes
2018
Emergency Department Volume and Outcomes for Patients After Chest Pain Assessment
Ko DT, Dattani ND, Austin PC, Schull MJ, Ross JS, Wijeysundera HC, Tu JV, Eberg M, Koh M, Krumholz HM. Emergency Department Volume and Outcomes for Patients After Chest Pain Assessment. Circulation Cardiovascular Quality And Outcomes 2018, 11: e004683. PMID: 30354285, DOI: 10.1161/circoutcomes.118.004683.Peer-Reviewed Original ResearchConceptsAcute coronary syndromeChest painHigh-volume EDsCoronary syndromeED volumeVolume thresholdCardiac medication useChest pain assessmentLower adverse outcomesEmergency department visitsAdjusted odds ratioPopulation-based dataProcess of carePotential confounding variablesHigher ED volumesHierarchical logistic regression modelsLogistic regression modelsEmergency department volumeCause deathCardiac testingComposite outcomeDepartment visitsDiabetes mellitusMedication usePrimary outcomeClinical Outcomes of Plavix and Generic Clopidogrel for Patients Hospitalized With an Acute Coronary Syndrome
Ko DT, Krumholz HM, Tu JV, Austin PC, Stukel TA, Koh M, Chong A, de Melo JF, Jackevicius CA. Clinical Outcomes of Plavix and Generic Clopidogrel for Patients Hospitalized With an Acute Coronary Syndrome. Circulation Cardiovascular Quality And Outcomes 2018, 11: e004194. PMID: 29535091, DOI: 10.1161/circoutcomes.117.004194.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAgedAged, 80 and overClopidogrelCost SavingsCost-Benefit AnalysisDatabases, FactualDrug CostsDrug SubstitutionDrugs, GenericFemaleHemorrhageHumansMaleOntarioPatient AdmissionPatient ReadmissionPlatelet Aggregation InhibitorsPurinergic P2Y Receptor AntagonistsRecurrenceRisk AssessmentRisk FactorsTime FactorsTreatment OutcomeConceptsAcute coronary syndromeGeneric clopidogrelClinical outcomesCoronary syndromePrimary outcomeRecurrent acute coronary syndromeSubstantial healthcare cost savingsPopulation-based observational studyPropensity-weighted cohortsComposite of deathTransient ischemic attackComposite end pointEffect of clopidogrelElevation myocardial infarctionHealthcare cost savingsCox proportional hazardsRate of deathIschemic attackACS hospitalizationCause readmissionBaseline characteristicsHospital dischargeRecurrent hospitalizationsMean ageMyocardial infarction
2016
Troponin Testing for Clinicians
Brush JE, Kaul S, Krumholz HM. Troponin Testing for Clinicians. Journal Of The American College Of Cardiology 2016, 68: 2365-2375. PMID: 27884254, DOI: 10.1016/j.jacc.2016.08.066.Peer-Reviewed Original ResearchComparative Effectiveness of Generic Atorvastatin and Lipitor® in Patients Hospitalized with an Acute Coronary Syndrome
Jackevicius CA, Tu JV, Krumholz HM, Austin PC, Ross JS, Stukel TA, Koh M, Chong A, Ko DT. Comparative Effectiveness of Generic Atorvastatin and Lipitor® in Patients Hospitalized with an Acute Coronary Syndrome. Journal Of The American Heart Association 2016, 5: e003350. PMID: 27098970, PMCID: PMC4859299, DOI: 10.1161/jaha.116.003350.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAgedAtorvastatinComparative Effectiveness ResearchDrugs, GenericFemaleHospitalizationHumansMalePropensity ScoreTreatment OutcomeConceptsGeneric atorvastatinACS hospitalizationSecondary outcomesClinical effectivenessAcute coronary syndrome hospitalizationPopulation-based cohort studyNew-onset diabetesAcute coronary syndromeDays of dischargePrespecified subgroup analysisPropensity-matched pairsInfrequent side effectsBrand-name medicationsSignificant differencesHealth care plansRecurrent ACSAdmission diagnosisAtorvastatin doseCardiovascular outcomesCoronary syndromeCohort studyRenal failureHeart failurePrimary outcomeMean age
2015
The predicament of comparative effectiveness research using observational data.
Curtis JP, Krumholz HM. The predicament of comparative effectiveness research using observational data. Annals Of Internal Medicine 2015, 163: 799-800. PMID: 26501410, PMCID: PMC6467208, DOI: 10.7326/m15-2490.Commentaries, Editorials and LettersAcute Coronary SyndromeComparative Effectiveness ResearchCoronary AngiographyHumansObservational Studies as Topic
2013
2013 ACCF/AHA Key Data Elements and Definitions for Measuring the Clinical Management and Outcomes of Patients With Acute Coronary Syndromes and Coronary Artery Disease
Cannon CP, Brindis RG, Chaitman BR, Cohen DJ, Cross JT, Drozda JP, Fesmire FM, Fintel DJ, Fonarow GC, Fox KA, Gray DT, Harrington RA, Hicks KA, Hollander JE, Krumholz H, Labarthe DR, Long JB, Mascette AM, Meyer C, Peterson ED, Radford MJ, Roe MT, Richmann JB, Selker HP, Shahian DM, Shaw RE, Sprenger S, Swor R, Underberg JA, Van de Werf F, Weiner BH, Weintraub WS. 2013 ACCF/AHA Key Data Elements and Definitions for Measuring the Clinical Management and Outcomes of Patients With Acute Coronary Syndromes and Coronary Artery Disease. Critical Pathways In Cardiology A Journal Of Evidence-Based Medicine 2013, 12: 65-105. PMID: 23680811, DOI: 10.1097/hpc.0b013e3182846e16.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAmerican Heart AssociationCardiologyCoronary Artery DiseaseDisease ManagementHumansPatient CareSocieties, MedicalUnited States2013 ACCF/AHA Key Data Elements and Definitions for Measuring the Clinical Management and Outcomes of Patients With Acute Coronary Syndromes and Coronary Artery Disease A Report of the American College of Cardiology Foundation/American Heart Association Task Force on Clinical Data Standards (Writing Committee to Develop Acute Coronary Syndromes and Coronary Artery Disease Clinical Data Standards)
Cannon CP, Brindis RG, Chaitman BR, Cohen DJ, Cross JT, Drozda JP, Fesmire FM, Fintel DJ, Fonarow GC, Fox KA, Gray DT, Harrington RA, Hicks KA, Hollander JE, Krumholz H, Labarthe DR, Long JB, Mascette AM, Meyer C, Peterson ED, Radford MJ, Roe MT, Richmann JB, Selker HP, Shahian DM, Shaw RE, Sprenger S, Swor R, Underberg JA, Van de Werf F, Weiner BH, Weintraub WS. 2013 ACCF/AHA Key Data Elements and Definitions for Measuring the Clinical Management and Outcomes of Patients With Acute Coronary Syndromes and Coronary Artery Disease A Report of the American College of Cardiology Foundation/American Heart Association Task Force on Clinical Data Standards (Writing Committee to Develop Acute Coronary Syndromes and Coronary Artery Disease Clinical Data Standards). Journal Of The American College Of Cardiology 2013, 61: 992-1025. PMID: 23369353, PMCID: PMC5681220, DOI: 10.1016/j.jacc.2012.10.005.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAmerican Heart AssociationCardiologyCoronary Artery DiseaseFemaleHumansMaleSocieties, MedicalUnited States2013 ACCF/AHA Key Data Elements and Definitions for Measuring the Clinical Management and Outcomes of Patients With Acute Coronary Syndromes and Coronary Artery Disease
Cannon CP, Brindis RG, Chaitman BR, Cohen DJ, Cross JT, Drozda JP, Fesmire FM, Fintel DJ, Fonarow GC, Fox KA, Gray DT, Harrington RA, Hicks KA, Hollander JE, Krumholz H, Labarthe DR, Long JB, Mascette AM, Meyer C, Peterson ED, Radford MJ, Roe MT, Richmann JB, Selker HP, Shahian DM, Shaw RE, Sprenger S, Swor R, Underberg JA, Van de Werf F, Weiner BH, Weintraub WS. 2013 ACCF/AHA Key Data Elements and Definitions for Measuring the Clinical Management and Outcomes of Patients With Acute Coronary Syndromes and Coronary Artery Disease. Circulation 2013, 127: 1052-1089. PMID: 23357718, DOI: 10.1161/cir.0b013e3182831a11.Peer-Reviewed Original Research
2012
2012 ACCF/AHA/ACP/AATS/PCNA/SCAI/STS Guideline for the Diagnosis and Management of Patients With Stable Ischemic Heart Disease A Report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines, and the American College of Physicians, American Association for Thoracic Surgery, Preventive Cardiovascular Nurses Association, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons
Fihn SD, Gardin JM, Abrams J, Berra K, Blankenship JC, Dallas AP, Douglas PS, Foody JM, Gerber TC, Hinderliter AL, King SB, Kligfield PD, Krumholz HM, Kwong RY, Lim MJ, Linderbaum JA, Mack MJ, Munger MA, Prager RL, Sabik JF, Shaw LJ, Sikkema JD, Smith CR, Smith SC, Spertus JA, Williams SV. 2012 ACCF/AHA/ACP/AATS/PCNA/SCAI/STS Guideline for the Diagnosis and Management of Patients With Stable Ischemic Heart Disease A Report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines, and the American College of Physicians, American Association for Thoracic Surgery, Preventive Cardiovascular Nurses Association, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons. Journal Of The American College Of Cardiology 2012, 60: e44-e164. PMID: 23182125, DOI: 10.1016/j.jacc.2012.07.013.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAdrenergic beta-AntagonistsAlcohol DrinkingAngina PectorisBody WeightCholesterol, LDLClopidogrelComorbidityCost of IllnessDepressionDiabetes ComplicationsDisease ManagementElectrocardiographyExerciseExercise TestGlycated HemoglobinHealth BehaviorHumansHypertensionLife StyleMyocardial InfarctionMyocardial IschemiaMyocardial RevascularizationPhysical ExaminationPlatelet Aggregation InhibitorsPractice Guidelines as TopicQuality of LifeRisk AssessmentRisk FactorsRisk Reduction BehaviorSmoking CessationTiclopidineConceptsAmerican CollegeAmerican Heart Association Task ForcePreventive Cardiovascular Nurses AssociationCardiology Foundation/American Heart Association Task ForceManagement of patientsThoracic surgeryPractice guidelinesCardiovascular AngiographyThoracic surgeonsSTS guidelinesA ReportNurses AssociationAmerican AssociationTask ForceAssociationGuidelinesPatientsSurgeryAngiographyPhysiciansDiagnosisSurgeonsDevelopment of 2 Registry-Based Risk Models Suitable for Characterizing Hospital Performance on 30-Day All-Cause Mortality Rates Among Patients Undergoing Percutaneous Coronary Intervention
Curtis JP, Geary LL, Wang Y, Chen J, Drye EE, Grosso LM, Spertus JA, Rumsfeld JS, Weintraub WS, Masoudi FA, Brindis RG, Krumholz HM. Development of 2 Registry-Based Risk Models Suitable for Characterizing Hospital Performance on 30-Day All-Cause Mortality Rates Among Patients Undergoing Percutaneous Coronary Intervention. Circulation Cardiovascular Quality And Outcomes 2012, 5: 628-637. PMID: 22949491, DOI: 10.1161/circoutcomes.111.964569.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAgedAged, 80 and overAngina PectorisChi-Square DistributionComorbidityFemaleHeart DiseasesHospital MortalityHospitalsHumansLogistic ModelsMaleMyocardial InfarctionOdds RatioOutcome and Process Assessment, Health CarePercutaneous Coronary InterventionQuality Indicators, Health CareRegistriesRisk AssessmentRisk FactorsShock, CardiogenicTime FactorsTreatment OutcomeUnited StatesConceptsST-segment elevation myocardial infarctionPercutaneous coronary interventionRisk-standardized mortality ratesElevation myocardial infarctionPatient mortality ratesMyocardial infarctionMortality rateCardiogenic shockCoronary interventionDerivation cohortHospital risk-standardized mortality ratesCause mortality ratesAdministrative claims dataQuality of careHierarchical logistic regression modelsNational Quality ForumLogistic regression modelsObserved mortality rateCathPCI RegistryNational HospitalClaims dataInfarctionPatientsQuality ForumFinal model
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 failureInvestigation of 95 variants identified in a genome-wide study for association with mortality after acute coronary syndrome
Morgan TM, House JA, Cresci S, Jones P, Allayee H, Hazen SL, Patel Y, Patel RS, Eapen DJ, Waddy SP, Quyyumi AA, Kleber ME, März W, Winkelmann BR, Boehm BO, Krumholz HM, Spertus JA. Investigation of 95 variants identified in a genome-wide study for association with mortality after acute coronary syndrome. BMC Medical Genomics 2011, 12: 127. PMID: 21957892, PMCID: PMC3190329, DOI: 10.1186/1471-2350-12-127.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAgedAged, 80 and overAminohydrolasesCohort StudiesFemaleFormate-Tetrahydrofolate LigaseGenetic VariationGenome-Wide Association StudyGenotypeHumansKaplan-Meier EstimateMaleMethylenetetrahydrofolate Dehydrogenase (NADP)Middle AgedMultienzyme ComplexesMyocardial InfarctionPolymorphism, Single NucleotideProportional Hazards ModelsRisk FactorsWhite PeopleConceptsAcute coronary syndromeCoronary syndromeCoronary artery disease patientsKaplan-Meier survival analysisACS risk factorsCoronary artery diseaseUniversity-affiliated hospitalMyocardial infarction patientsPremature myocardial infarctionRace-adjusted analysesACS mortalityArtery diseaseCox regressionBorderline significanceDisease patientsInfarction patientsMyocardial infarctionRisk factorsMortality hazardIndependent cohortSurvival analysisDiverse cohortPatientsRelevant covariatesBackgroundGenome-wide association studies
2010
Implementation of a Registry for Acute Coronary Syndrome in Resource-Limited Settings: Barriers and Opportunities
Safavi K, Linnander EL, Allam AA, Bradley EH, Krumholz HM. Implementation of a Registry for Acute Coronary Syndrome in Resource-Limited Settings: Barriers and Opportunities. Asia Pacific Journal Of Public Health 2010, 22: 90s-95s. PMID: 20566539, DOI: 10.1177/1010539510373017.Peer-Reviewed Original ResearchConceptsAcute coronary syndromeCardiovascular diseaseCoronary syndromeHealth systemClinical Outcomes RegistryEvidence-based careCause of deathResource limited settingsResource-limited settingsWorld health systemsQuality improvement activitiesMiddle-income countriesOutcomes RegistryHigh-quality treatmentBlame-free cultureClinical registryRegistrySyndromeImprovement activitiesHospitalDiseaseSetting
2008
Implementation and Integration of Prehospital ECGs Into Systems of Care for Acute Coronary Syndrome
Ting HH, Krumholz HM, Bradley EH, Cone DC, Curtis JP, Drew BJ, Field JM, French WJ, Gibler WB, Goff DC, Jacobs AK, Nallamothu BK, O'Connor RE, Schuur JD. Implementation and Integration of Prehospital ECGs Into Systems of Care for Acute Coronary Syndrome. Circulation 2008, 118: 1066-1079. PMID: 18703464, DOI: 10.1161/circulationaha.108.190402.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsInvestigation of 89 candidate gene variants for effects on all-cause mortality following acute coronary syndrome
Morgan TM, Xiao L, Lyons P, Kassebaum B, Krumholz HM, Spertus JA. Investigation of 89 candidate gene variants for effects on all-cause mortality following acute coronary syndrome. BMC Medical Genomics 2008, 9: 66. PMID: 18620593, PMCID: PMC2483267, DOI: 10.1186/1471-2350-9-66.Peer-Reviewed Original ResearchConceptsAcute coronary syndromeRisk factorsACS mortalityCoronary syndromeTraditional cardiac risk factorsKaplan-Meier survival analysisMultivariate risk prediction modelCardiac risk factorsPutative genetic risk factorsGene variantsUniversity-affiliated hospitalBorderline statistical significanceGenetic risk factorsSystematic literature searchRisk prediction modelGenetic variantsCandidate gene variantsACS survivorsCause mortalityACS casesCox regressionPatient cohortClinical prognosisPotential confoundingSurvival analysis