2023
Sex Difference in Outcomes of Acute Myocardial Infarction in Young Patients
Sawano M, Lu Y, Caraballo C, Mahajan S, Dreyer R, Lichtman J, D'Onofrio G, Spatz E, Khera R, Onuma O, Murugiah K, Spertus J, Krumholz H. Sex Difference in Outcomes of Acute Myocardial Infarction in Young Patients. Journal Of The American College Of Cardiology 2023, 81: 1797-1806. PMID: 37137590, DOI: 10.1016/j.jacc.2023.03.383.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionNoncardiac hospitalizationsSubdistribution HRYounger patientsMyocardial infarctionSex differencesYoung womenCause-specific hospitalizationsCause of hospitalizationWorse health statusSignificant sex disparityNoncardiovascular hospitalizationsVIRGO StudyIndex episodeAdverse outcomesIncidence rateHospitalizationHigh riskSex disparitiesHealth statusPatientsU.S. hospitalsWomenInfarctionOutcomes
2022
Temporal trends in postoperative and ventilator-associated pneumonia in the United States
Metersky M, Wang Y, Klompas M, Eckenrode S, Mathew J, Krumholz H. Temporal trends in postoperative and ventilator-associated pneumonia in the United States. Infection Control And Hospital Epidemiology 2022, 44: 1247-1254. PMID: 36326283, DOI: 10.1017/ice.2022.264.Peer-Reviewed Original ResearchConceptsVentilator-associated pneumoniaMajor surgical proceduresPostoperative pneumoniaAcute myocardial infarctionSurgical proceduresHeart failureMyocardial infarctionMedicare Patient Safety Monitoring SystemAnnual riskRetrospective cohort studyPrior yearRisk-adjusted ratesAdverse event measuresCohort studyRetrospective reviewPneumoniaPatientsInfarctionUnited StatesRiskSignificant changesYearsTemporal trendsFailureSex Differences in Characteristics, Treatments, and Outcomes Among Patients Hospitalized for Non–ST-Segment–Elevation Myocardial Infarction in China: 2006 to 2015
Guo W, Du X, Gao Y, Hu S, Lu Y, Dreyer RP, Li X, Spatz ES, Masoudi FA, Krumholz HM, Zheng X. Sex Differences in Characteristics, Treatments, and Outcomes Among Patients Hospitalized for Non–ST-Segment–Elevation Myocardial Infarction in China: 2006 to 2015. Circulation Cardiovascular Quality And Outcomes 2022, 15: e008535. PMID: 35607994, PMCID: PMC9208815, DOI: 10.1161/circoutcomes.121.008535.Peer-Reviewed Original ResearchConceptsSegment elevation myocardial infarctionInvasive strategyMyocardial infarctionHospital mortalityHospital outcomesMultivariable logistic regression modelCardiovascular risk factorsElevation myocardial infarctionSex-related disparitiesQuality of careProportion of womenLogistic regression modelsSex differencesClinical characteristicsClinical profileRisk factorsClinical covariatesSex-specific differencesPatientsInfarctionST segmentSex gapChinese hospitalsMortalityWomenHealth status outcomes after spontaneous coronary artery dissection and comparison with other acute myocardial infarction: The VIRGO experience
Murugiah K, Chen L, Dreyer RP, Bouras G, Safdar B, Khera R, Lu Y, Spatz ES, Ng VG, Gupta A, Bueno H, Tweet MS, Spertus JA, Hayes SN, Lansky A, Krumholz HM. Health status outcomes after spontaneous coronary artery dissection and comparison with other acute myocardial infarction: The VIRGO experience. PLOS ONE 2022, 17: e0265624. PMID: 35320296, PMCID: PMC8942215, DOI: 10.1371/journal.pone.0265624.Peer-Reviewed Original ResearchConceptsSpontaneous coronary artery dissectionAcute myocardial infarctionAMI patientsCoronary artery dissectionYoung AMI patientsHealth status outcomesHealth status instrumentsSCAD patientsArtery dissectionMyocardial infarctionStatus outcomesPatientsOutcomesHousehold incomeCollege educationInfarction
2021
Sex Differences in Symptom Phenotypes Among Older Patients with Acute Myocardial Infarction
Brush JE, Hajduk AM, Greene EJ, Dreyer RP, Krumholz HM, Chaudhry SI. Sex Differences in Symptom Phenotypes Among Older Patients with Acute Myocardial Infarction. The American Journal Of Medicine 2021, 135: 342-349. PMID: 34715061, PMCID: PMC8901454, DOI: 10.1016/j.amjmed.2021.09.022.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionSymptom combinationsOlder patientsAcute myocardial infarction subgroupsAcute myocardial infarction admissionsMyocardial infarction subgroupsPatients 75 yearsMyocardial infarction admissionsSILVER-AMI StudySymptom phenotypeClinical studiesIndividual patientsMore symptomsPatientsInfarctionDiagnostic possibilitiesSymptomsWomenPerson interviewsMenCommon phenotypeSex differencesCliniciansPhenotypeAssociation of STEMI regionalization of care with de facto NSTEMI regionalization
Montoy JCC, Shen YC, Krumholz HM, Hsia RY. Association of STEMI regionalization of care with de facto NSTEMI regionalization. American Heart Journal 2021, 242: 1-5. PMID: 34274313, PMCID: PMC8568654, DOI: 10.1016/j.ahj.2021.07.002.Peer-Reviewed Original ResearchConceptsNon-ST elevation myocardial infarctionST-elevation myocardial infarctionElevation myocardial infarctionMyocardial infarctionPercutaneous coronary intervention-capable hospitalsPCI-capable hospitalsRegionalization of careCapable hospitalsSTEMI regionalizationPatient volumeHospitalInfarctionPatientsCareRegionalization programImpact of ST‐Segment–Elevation Myocardial Infarction Regionalization Programs on the Treatment and Outcomes of Patients Diagnosed With Non–ST‐Segment–Elevation Myocardial Infarction
Montoy JCC, Shen Y, Brindis RG, Krumholz HM, Hsia RY. Impact of ST‐Segment–Elevation Myocardial Infarction Regionalization Programs on the Treatment and Outcomes of Patients Diagnosed With Non–ST‐Segment–Elevation Myocardial Infarction. Journal Of The American Heart Association 2021, 10: e016932. PMID: 33470136, PMCID: PMC7955417, DOI: 10.1161/jaha.120.016932.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCaliforniaCoronary AngiographyEarly DiagnosisElectrocardiographyFemaleFollow-Up StudiesHospitalizationHumansMaleMiddle AgedNon-ST Elevated Myocardial InfarctionPercutaneous Coronary InterventionPrognosisProgram EvaluationRegistriesRetrospective StudiesRisk FactorsST Elevation Myocardial InfarctionSurvival RateTreatment OutcomeConceptsOutcomes of patientsEarly angiographyMyocardial infarctionST segmentST-segment elevation myocardial infarctionSegment elevation myocardial infarctionProportion of patientsElevation myocardial infarctionRisk of deathRisk of mortalityRegionalization programIndex admissionEmergency departmentRegionalized careNonfederal hospitalsMAIN OUTCOMETimely carePatientsAngiographyOverall populationNSTEMIInfarctionStudy periodMortalityCare
2020
The impact of sex, gender and healthcare system on quality of care among young adults with acute myocardial infarction
Raparelli V, Pilote L, Behlouli H, Dziura J, Bueno H, D'Onofrio G, Krumholz H, Dreyer R. The impact of sex, gender and healthcare system on quality of care among young adults with acute myocardial infarction. European Heart Journal 2020, 41: ehaa946.3175. DOI: 10.1093/ehjci/ehaa946.3175.Peer-Reviewed Original ResearchAcute myocardial infarctionQuality of careYoung adultsMyocardial infarctionHealthcare systemHigher risk factor burdenRisk factor burdenPost-discharge carePhases of careMultipayer systemImpact of sexSystem-level factorsHospital phaseAMI careCare scoresSingle-payer systemCareWomenCanadian InstituteSexAdultsMenInfarctionHospitalLinear regression modelsNewly diagnosed diabetes and outcomes after acute myocardial infarction in young adults
Ding Q, Spatz ES, Lipska KJ, Lin H, Spertus JA, Dreyer RP, Whittemore R, Funk M, Bueno H, Krumholz HM. Newly diagnosed diabetes and outcomes after acute myocardial infarction in young adults. Heart 2020, 107: 657-666. PMID: 33082173, PMCID: PMC8005796, DOI: 10.1136/heartjnl-2020-317101.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionHealth statusDischarge diagnosisPharmacological treatmentMyocardial infarctionShort-term health statusYoung AMI Patients (VIRGO) studyDisease-specific health statusYoung adultsQuality of lifeHospital complicationsHospital mortalityMedication initiationBaseline characteristicsClinical outcomesDiabetesPatientsDiagnosisPatient studiesMonthsComplicationsInfarctionSignificant differencesOutcomesMortalityTimely estimation of National Admission, readmission, and observation-stay rates in medicare patients with acute myocardial infarction, heart failure, or pneumonia using near real-time claims data
Li SX, Wang Y, Lama SD, Schwartz J, Herrin J, Mei H, Lin Z, Bernheim SM, Spivack S, Krumholz HM, Suter LG. Timely estimation of National Admission, readmission, and observation-stay rates in medicare patients with acute myocardial infarction, heart failure, or pneumonia using near real-time claims data. BMC Health Services Research 2020, 20: 733. PMID: 32778098, PMCID: PMC7416804, DOI: 10.1186/s12913-020-05611-w.Peer-Reviewed Original ResearchRates and Predictors of Patient Underreporting of Hospitalizations During Follow-Up After Acute Myocardial Infarction
Caraballo C, Khera R, Jones PG, Decker C, Schulz W, Spertus JA, Krumholz HM. Rates and Predictors of Patient Underreporting of Hospitalizations During Follow-Up After Acute Myocardial Infarction. Circulation Cardiovascular Quality And Outcomes 2020, 13: e006231. PMID: 32552061, PMCID: PMC9465954, DOI: 10.1161/circoutcomes.119.006231.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionHospitalization eventsMedical recordsLongitudinal multicenter cohort studyMulticenter cohort studyMedical record abstractionDifferent patient characteristicsHealth care eventsPatients' underreportingTRIUMPH registryAccuracy of reportingCohort studyPatient characteristicsRecord abstractionProspective studyClinical studiesClinical investigationHospitalizationPatientsCare eventsInfarctionEvent ratesParticipantsPredictorsUse of intravenous magnesium sulfate among patients with acute myocardial infarction in China from 2001 to 2015: China PEACE—Retrospective AMI Study
Wang X, Du X, Yang H, Bucholz E, Downing N, Spertus JA, Masoudi FA, Li J, Guan W, Gao Y, Hu S, Bai X, Krumholz HM, Li X. Use of intravenous magnesium sulfate among patients with acute myocardial infarction in China from 2001 to 2015: China PEACE—Retrospective AMI Study. BMJ Open 2020, 10: e033269. PMID: 32220910, PMCID: PMC7170603, DOI: 10.1136/bmjopen-2019-033269.Peer-Reviewed Original ResearchConceptsIntravenous magnesium sulfateAcute myocardial infarctionMagnesium sulfate useMyocardial infarctionMagnesium sulfateChina PEACE-Retrospective AMI StudyHospital-level variationProportion of hospitalsHospital-specific characteristicsMedian ORsSignificant initial decreaseReperfusion therapyCardiac arrestAMI careIneffective therapyPatient outcomesRepresentative sampleObservational studyMAIN OUTCOMEChinese guidelinesPatientsChinese hospitalsRoutine useAMI studyInfarctionSex Differences in Symptom Phenotypes Among Patients With Acute Myocardial Infarction
Brush JE, Krumholz HM, Greene EJ, Dreyer RP. Sex Differences in Symptom Phenotypes Among Patients With Acute Myocardial Infarction. Circulation Cardiovascular Quality And Outcomes 2020, 13: e005948. PMID: 32063049, PMCID: PMC7041412, DOI: 10.1161/circoutcomes.119.005948.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultBiological Variation, IndividualFemaleHealth Status DisparitiesHumansInterviews as TopicMaleMiddle AgedMyocardial InfarctionPatient AdmissionPhenotypePredictive Value of TestsProspective StudiesRisk AssessmentRisk FactorsSex FactorsSpainSymptom AssessmentUnited StatesYoung AdultConceptsAcute myocardial infarctionMyocardial infarctionMedical recordsYoung womenDiagnosis of AMIObservational cohort studyMedical record abstractionSymptom phenotypeDiagnostic processAnalysis of symptomsVIRGO StudyCohort studyRecord abstractionIndividual patientsClinician's abilityDiagnosis rateStandardized interviewPhenotype subgroupsSymptomsSimilar findingsYoung adultsWomenMenInfarctionPatients
2018
Factors Associated With Return to Work After Acute Myocardial Infarction in China
Jiang Z, Dreyer RP, Spertus JA, Masoudi FA, Li J, Zheng X, Li X, Wu C, Bai X, Hu S, Wang Y, Krumholz HM, Chen H. Factors Associated With Return to Work After Acute Myocardial Infarction in China. JAMA Network Open 2018, 1: e184831. PMID: 30646375, PMCID: PMC6324382, DOI: 10.1001/jamanetworkopen.2018.4831.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionIndex acute myocardial infarctionHistory of smokingMyocardial infarctionHospital complicationsBaseline characteristicsFemale sexPatient baseline characteristicsProspective cohort studyLower likelihoodAcute myocardial infarction hospitalizationsLogistic regression modelsMyocardial infarction hospitalizationsCohort studyPatient factorsChina PatientProspective studyChinese patientsMAIN OUTCOMEInfarctionPatientsMonthsHospitalizationComplicationsSmokingTrends in 30-Day Readmission Rates for Medicare and Non-Medicare Patients in the Era of the Affordable Care Act
Angraal S, Khera R, Zhou S, Wang Y, Lin Z, Dharmarajan K, Desai NR, Bernheim SM, Drye EE, Nasir K, Horwitz LI, Krumholz HM. Trends in 30-Day Readmission Rates for Medicare and Non-Medicare Patients in the Era of the Affordable Care Act. The American Journal Of Medicine 2018, 131: 1324-1331.e14. PMID: 30016636, PMCID: PMC6380174, DOI: 10.1016/j.amjmed.2018.06.013.Peer-Reviewed Original ResearchConceptsHospital Readmissions Reduction ProgramReadmission ratesAcute myocardial infarctionHeart failurePatient groupMyocardial infarctionCause readmission rateNationwide Readmissions DatabaseReadmissions Reduction ProgramNon-Medicare patientsNon-target conditionsLower readmissionAffordable Care ActMedicare beneficiariesAge groupsPrivate insuranceCare ActPneumoniaInfarctionPatientsReduction programsMedicareGroupReadmissionFailureTime to hospital arrival among patients with acute myocardial infarction in China: a report from China PEACE prospective study
Guan W, Venkatesh AK, Bai X, Xuan S, Li J, Li X, Zhang H, Zheng X, Masoudi FA, Spertus JA, Krumholz HM, Jiang L. Time to hospital arrival among patients with acute myocardial infarction in China: a report from China PEACE prospective study. European Heart Journal - Quality Of Care And Clinical Outcomes 2018, 5: 63-71. PMID: 29878087, PMCID: PMC6307335, DOI: 10.1093/ehjqcco/qcy022.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionHospital arrivalSymptom onsetMyocardial infarctionMedical insuranceLower household incomeRural medical insuranceChest discomfortChest painIndex hospitalizationMedian timeMultivariable analysisAMI symptomsProspective studyAssociated FactorsPatients' perceptionsCare seekingAMI hospitalizationPatientsSymptomsHousehold incomeAMI studyHospitalizationInfarctionAverage timeVentricular septal rupture complicating acute myocardial infarction: Incidence, treatment, and outcomes among medicare beneficiaries 1999–2014
Goldsweig AM, Wang Y, Forrest JK, Cleman MW, Minges KE, Mangi AA, Aronow HD, Krumholz HM, Curtis JP. Ventricular septal rupture complicating acute myocardial infarction: Incidence, treatment, and outcomes among medicare beneficiaries 1999–2014. Catheterization And Cardiovascular Interventions 2018, 92: 1104-1115. PMID: 29513365, DOI: 10.1002/ccd.27576.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionVentricular septal ruptureTimely primary PCIMortality ratePrimary PCIPercutaneous repairSeptal ruptureMyocardial infarctionRetrospective cohort studyUnadjusted mortality ratesUnrepaired patientsVSR repairFatal complicationCohort studyAnnual incidenceMedicare feeService beneficiariesPatientsIncidenceStudy periodMortalityHospitalizationInfarctionRepairPCI
2017
Burden of Catastrophic Health Expenditures for Acute Myocardial Infarction and Stroke Among Uninsured in the United States
Khera R, Hong JC, Saxena A, Arrieta A, Virani SS, Blankstein R, de Lemos JA, Krumholz HM, Nasir K. Burden of Catastrophic Health Expenditures for Acute Myocardial Infarction and Stroke Among Uninsured in the United States. Circulation 2017, 137: 408-410. PMID: 29133601, PMCID: PMC5780190, DOI: 10.1161/circulationaha.117.030128.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultFemaleHealth Care CostsHealth ExpendituresHealth Services AccessibilityHospital ChargesHospital CostsHumansIncomeMaleMedically UninsuredMiddle AgedMyocardial InfarctionPatient Protection and Affordable Care ActProcess Assessment, Health CareStrokeTime FactorsUnited StatesYoung AdultQuality of Care in Chinese Hospitals: Processes and Outcomes After ST‐segment Elevation Myocardial Infarction
Downing NS, Wang Y, Dharmarajan K, Nuti SV, Murugiah K, Du X, Zheng X, Li X, Li J, Masoudi FA, Spertus JA, Jiang L, Krumholz HM. Quality of Care in Chinese Hospitals: Processes and Outcomes After ST‐segment Elevation Myocardial Infarction. Journal Of The American Heart Association 2017, 6: e005040. PMID: 28645937, PMCID: PMC5669155, DOI: 10.1161/jaha.116.005040.Peer-Reviewed Original ResearchConceptsST-elevation myocardial infarctionRisk-standardized mortality ratesQuality of careGuideline-recommended careGuideline-recommended treatmentMyocardial infarctionMortality rateST-segment elevation myocardial infarctionChina PEACE-Retrospective AMI StudyComposite rateMedian risk-standardized mortality rateProportion of patientsElevation myocardial infarctionQuality improvement initiativesProportion of opportunitiesDefect-free rateHospital levelInfarctionHospitalChinese hospitalsPatientsCareAMI studyImprovement initiativesHigh rateSexual Activity and Function in the Year After an Acute Myocardial Infarction Among Younger Women and Men in the United States and Spain
Lindau S, Abramsohn E, Bueno H, D’Onofrio G, Lichtman J, Lorenze N, Sanghani R, Spatz E, Spertus J, Strait K, Wroblewski K, Zhou S, Krumholz H. Sexual Activity and Function in the Year After an Acute Myocardial Infarction Among Younger Women and Men in the United States and Spain. Obstetrical & Gynecological Survey 2017, 72: 334-335. DOI: 10.1097/01.ogx.0000516136.75506.a3.Peer-Reviewed Original Research