2023
Impact of Sex‐ and Gender‐Related Factors on Length of Stay Following Non–ST‐Segment–Elevation Myocardial Infarction: A Multicountry Analysis
Bender U, Norris C, Dreyer R, Krumholz H, Raparelli V, Pilote L. Impact of Sex‐ and Gender‐Related Factors on Length of Stay Following Non–ST‐Segment–Elevation Myocardial Infarction: A Multicountry Analysis. Journal Of The American Heart Association 2023, 12: e028553. PMID: 37489737, PMCID: PMC10492965, DOI: 10.1161/jaha.122.028553.Peer-Reviewed Original ResearchConceptsSegment elevation myocardial infarctionMyocardial infarctionGender-related factorsLonger LOSSegment elevation myocardial infarction diagnosisConclusions Older ageObservational cohort studyAdverse clinical outcomesAdjusted multivariable modelAcute myocardial infarctionLength of stayImpact of sexHealth care expendituresGENESIS-PRAXYHospital lengthNon–STCause mortalityCohort studyIndependent predictorsMyocardial infarction diagnosisClinical outcomesShorter LOSMedical historyMultivariable modelUnivariate associations
2021
Trajectories of Pain After Cardiac Surgery: Implications for Measurement, Reporting, and Individualized Treatment
Mori M, Brooks C, Dhruva SS, Lu Y, Spatz ES, Dey P, Zhang Y, Chaudhry SI, Geirsson A, Allore HG, Krumholz HM. Trajectories of Pain After Cardiac Surgery: Implications for Measurement, Reporting, and Individualized Treatment. Circulation Cardiovascular Quality And Outcomes 2021, 14: e007781. PMID: 34304586, PMCID: PMC8366534, DOI: 10.1161/circoutcomes.120.007781.Peer-Reviewed Original ResearchMeSH KeywordsCardiac Surgical ProceduresCohort StudiesHumansLength of StayPain, PostoperativeSurveys and QuestionnairesConceptsPain trajectoriesPain levelsCardiac surgeryHigher painPostoperative painMean pain levelTertiary care centerPostoperative pain experienceTrajectories of painPostoperative day 10Lower median ageGroup-based trajectory modelsModerate decliningHospital stayPain valuesMedian ageStudy cohortMedian lengthCare centerIndividual-level trajectoriesIndividualized treatmentTrajectory classesPainPain experiencePatient experienceEffect of Intermediate-Dose vs Standard-Dose Prophylactic Anticoagulation on Thrombotic Events, Extracorporeal Membrane Oxygenation Treatment, or Mortality Among Patients With COVID-19 Admitted to the Intensive Care Unit
Mazloomzadeh S, Khaleghparast S, Ghadrdoost B, Mousavizadeh M, Baay M, Noohi F, Sharifnia H, Ahmadi A, Tavan S, Malekpour Alamdari N, Fathi M, Soleimanzadeh M, Mostafa M, Davoody N, Zarinsadaf M, Tayyebi S, Farrokhzadeh F, Nezamabadi F, Soomari E, Sadeghipour P, Talasaz A, Rashidi F, Sharif-Kashani B, Beigmohammadi M, Farrokhpour M, Sezavar S, Payandemehr P, Dabbagh A, Moghadam K, Jamalkhani S, Khalili H, Yadollahzadeh M, Riahi T, Rezaeifar P, Tahamtan O, Matin S, Abedini A, Lookzadeh S, Rahmani H, Zoghi E, Mohammadi K, Sadeghipour P, Abri H, Tabrizi S, Mousavian S, Shahmirzaei S, Bakhshandeh H, Amin A, Rafiee F, Baghizadeh E, Mohebbi B, Parhizgar S, Aliannejad R, Eslami V, Kashefizadeh A, Kakavand H, Hosseini S, Shafaghi S, Ghazi S, Najafi A, Jimenez D, Gupta A, Madhavan M, Sethi S, Parikh S, Monreal M, Hadavand N, Hajighasemi A, Maleki M, Sadeghian S, Piazza G, Kirtane A, Van Tassell B, Dobesh P, Stone G, Lip G, Krumholz H, Goldhaber S, Bikdeli B. Effect of Intermediate-Dose vs Standard-Dose Prophylactic Anticoagulation on Thrombotic Events, Extracorporeal Membrane Oxygenation Treatment, or Mortality Among Patients With COVID-19 Admitted to the Intensive Care Unit. JAMA 2021, 325: 1620-1630. PMID: 33734299, PMCID: PMC7974835, DOI: 10.1001/jama.2021.4152.Peer-Reviewed Original ResearchMeSH KeywordsAgedAnticoagulantsCOVID-19Drug Administration ScheduleEnoxaparinExtracorporeal Membrane OxygenationFemaleHemorrhageHospitalizationHumansIntensive Care UnitsIranLength of StayMaleMiddle AgedOdds RatioOutcome Assessment, Health CareOxygen Inhalation TherapyPulmonary EmbolismThrombocytopeniaThrombosisTreatment OutcomeVenous ThrombosisConceptsStandard-dose prophylactic anticoagulationIntensive care unitIntermediate-dose groupProphylactic anticoagulationPrimary efficacy outcomeExtracorporeal membrane oxygenationIntermediate doseMajor bleedingProphylaxis groupEfficacy outcomesMembrane oxygenationPrimary outcomeThrombotic eventsArterial thrombosisCare unitSevere thrombocytopeniaCOVID-19Bleeding Academic Research ConsortiumExtracorporeal membrane oxygenation treatmentPrespecified safety outcomesRoutine empirical useStandard prophylactic anticoagulationAcademic Research ConsortiumMembrane oxygenation treatmentAntithrombotic prophylaxis
2020
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
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 Research
2019
Characteristics, Management, and Outcomes of Patients Hospitalized for Heart Failure in China: The China PEACE Retrospective Heart Failure Study
Yu Y, Gupta A, Wu C, Masoudi FA, Du X, Zhang J, Krumholz HM, Li J, Group T. Characteristics, Management, and Outcomes of Patients Hospitalized for Heart Failure in China: The China PEACE Retrospective Heart Failure Study. Journal Of The American Heart Association 2019, 8: e012884. PMID: 31431117, PMCID: PMC6755852, DOI: 10.1161/jaha.119.012884.Peer-Reviewed Original ResearchConceptsHeart failureHF careSignificant healthcare resource utilizationBackground Heart failureGuideline-recommended medicationsLower inpatient mortalityAcute heart failureOutcomes of patientsHealthcare resource utilizationLower prescription ratesMedical record abstractionHeart Failure StudyTraditional Chinese medicineHospital mortalityConclusions PatientsInpatient mortalityPatient characteristicsTreatment withdrawalEjection fractionMedian agePrescription ratesRecord abstractionMedian lengthBiomarker testingInpatient settingPulmonary Embolism Hospitalization, Readmission, and Mortality Rates in US Older Adults, 1999-2015
Bikdeli B, Wang Y, Jimenez D, Parikh SA, Monreal M, Goldhaber SZ, Krumholz HM. Pulmonary Embolism Hospitalization, Readmission, and Mortality Rates in US Older Adults, 1999-2015. JAMA 2019, 322: 574-576. PMID: 31408124, PMCID: PMC6692667, DOI: 10.1001/jama.2019.8594.Peer-Reviewed Original ResearchMeSH KeywordsAgedFemaleHospitalizationHumansLength of StayMaleModels, StatisticalPatient ReadmissionPulmonary EmbolismUnited States
2017
National Trends in Use and Outcomes of Pulmonary Artery Catheters Among Medicare Beneficiaries, 1999-2013
Ikuta K, Wang Y, Robinson A, Ahmad T, Krumholz HM, Desai NR. National Trends in Use and Outcomes of Pulmonary Artery Catheters Among Medicare Beneficiaries, 1999-2013. JAMA Cardiology 2017, 2: 908-913. PMID: 28593267, PMCID: PMC5815078, DOI: 10.1001/jamacardio.2017.1670.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCatheterization, Swan-GanzCohort StudiesCross-Sectional StudiesDisease ManagementFemaleHeart FailureHospital MortalityHospitalizationHumansLength of StayMaleMedicareMortalityMyocardial InfarctionPulmonary ArteryRespiratory InsufficiencyUnited StatesVascular Access DevicesConceptsAcute myocardial infarctionLength of stayPAC usePAC placementRespiratory failureHeart failureMyocardial infarctionClinical conditionsPulmonary artery catheter useNational trendsCross-sectional cohort studyStudy periodKey clinical conditionsMedicaid Services inpatientHeart failure admissionsPulmonary artery catheterClinical Modification codesSociodemographic groupsUnique Medicare beneficiariesLack of benefitRace/ethnicityService inpatientsHospital mortalityCatheter useArtery catheterComparing Outcomes of Coronary Artery Bypass Grafting Among Large Teaching and Urban Hospitals in China and the United States
Zheng Z, Zhang H, Yuan X, Rao C, Zhao Y, Wang Y, Normand SL, Krumholz HM, Hu S. Comparing Outcomes of Coronary Artery Bypass Grafting Among Large Teaching and Urban Hospitals in China and the United States. Circulation Cardiovascular Quality And Outcomes 2017, 10: e003327. PMID: 28611187, PMCID: PMC5482563, DOI: 10.1161/circoutcomes.116.003327.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedChinaCoronary Artery BypassCoronary Artery DiseaseFemaleHealthcare DisparitiesHospital Bed CapacityHospital MortalityHospitals, High-VolumeHospitals, TeachingHospitals, UrbanHumansLength of StayMaleMiddle AgedOdds RatioPrevalenceProcess Assessment, Health CarePropensity ScoreQuality Indicators, Health CareRegistriesRisk AssessmentRisk FactorsTime FactorsTreatment OutcomeUnited StatesYoung AdultConceptsIsolated CABG surgeryCoronary artery bypassUrban hospitalHospital mortalityArtery bypassCABG surgeryChinese Cardiac Surgery RegistryTotal hospital stayCardiac Surgery RegistryCoronary artery diseaseNational Inpatient SampleLarge teachingLength of staySignificant mortality differenceHospital staySecondary outcomesArtery diseasePrimary outcomeMedian lengthComparing outcomesInpatient SampleMortality differencesHigher ageHigh mortalityHospitalPatient–Provider Communication and Health Outcomes Among Individuals With Atherosclerotic Cardiovascular Disease in the United States
Okunrintemi V, Spatz ES, Di Capua P, Salami JA, Valero-Elizondo J, Warraich H, Virani SS, Blaha MJ, Blankstein R, Butt AA, Borden WB, Dharmarajan K, Ting H, Krumholz HM, Nasir K. Patient–Provider Communication and Health Outcomes Among Individuals With Atherosclerotic Cardiovascular Disease in the United States. Circulation Cardiovascular Quality And Outcomes 2017, 10: e003635. PMID: 28373270, DOI: 10.1161/circoutcomes.117.003635.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAspirinAtherosclerosisCommunicationEmergency Service, HospitalFemaleHealth Care CostsHealth Care SurveysHealth ExpendituresHealth StatusHumansHydroxymethylglutaryl-CoA Reductase InhibitorsLength of StayMaleMental HealthMiddle AgedOdds RatioPatient Reported Outcome MeasuresPatient-Centered CarePhysician-Patient RelationsPlatelet Aggregation InhibitorsQuality Indicators, Health CareRisk FactorsUnited StatesYoung AdultConceptsAtherosclerotic cardiovascular diseasePatient-provider communicationHealthcare resource utilizationPatient-reported outcomesCardiovascular diseaseHealth Plans SurveyMedical Expenditure Panel Survey cohortHigher annual healthcare expendituresRepresentative US adult populationHealthcare expendituresAtherosclerotic cardiovascular disease (ASCVD) patientsConsumer AssessmentEmergency room visitsEvidence-based therapiesAnnual healthcare expendituresCardiovascular disease patientsUS adult populationPlans SurveyMental health statusPatient-centered careOutcomes of interestASA useHospital stayRoom visitsPoor outcome
2016
Readmission Rates: The Authors Reply
Bernheim SM, Krumholz HM, Lin Z. Readmission Rates: The Authors Reply. Health Affairs 2016, 35: 2152-2152. PMID: 27834261, DOI: 10.1377/hlthaff.2016.1243.Peer-Reviewed Original ResearchDeclining Admission Rates And Thirty-Day Readmission Rates Positively Associated Even Though Patients Grew Sicker Over Time
Dharmarajan K, Qin L, Lin Z, Horwitz LI, Ross JS, Drye EE, Keshawarz A, Altaf F, Normand SL, Krumholz HM, Bernheim SM. Declining Admission Rates And Thirty-Day Readmission Rates Positively Associated Even Though Patients Grew Sicker Over Time. Health Affairs 2016, 35: 1294-1302. PMID: 27385247, DOI: 10.1377/hlthaff.2015.1614.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCenters for Medicare and Medicaid Services, U.S.Chronic DiseaseDatabases, FactualDisease ProgressionFemaleGeriatric AssessmentHospital MortalityHumansIncidenceLength of StayMaleOutcome Assessment, Health CarePatient AdmissionPatient ReadmissionRetrospective StudiesRisk AssessmentSeverity of Illness IndexTime FactorsUnited StatesCoronary Catheterization and Percutaneous Coronary Intervention in China: 10-Year Results From the China PEACE-Retrospective CathPCI Study
Zheng X, Curtis JP, Hu S, Wang Y, Yang Y, Masoudi FA, Spertus JA, Li X, Li J, Dharmarajan K, Downing NS, Krumholz HM, Jiang L. Coronary Catheterization and Percutaneous Coronary Intervention in China: 10-Year Results From the China PEACE-Retrospective CathPCI Study. JAMA Internal Medicine 2016, 176: 512. PMID: 26974883, PMCID: PMC5459379, DOI: 10.1001/jamainternmed.2016.0166.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAngina, UnstableCardiac CatheterizationChinaCoronary Artery DiseaseDrug-Eluting StentsFemaleHospital MortalityHospitals, UrbanHumansLength of StayMaleMedical RecordsMiddle AgedMyocardial InfarctionOdds RatioOutcome Assessment, Health CarePercutaneous Coronary InterventionPostoperative ComplicationsPostoperative HemorrhageQuality of Health CareRetrospective StudiesStentsTime-to-TreatmentConceptsPercutaneous coronary interventionDrug-eluting stentsQuality of careCoronary catheterizationCoronary interventionNonobstructive coronary artery diseasePrimary percutaneous coronary interventionFuture quality improvement initiativesEvidence-based medicationsOutcomes of patientsCoronary artery diseaseClinical observational studyUse of catheterizationQuality improvement initiativesCalendar year 2001Hospital mortalityArtery diseasePatient characteristicsStable patientsTreatment patternsMedian lengthMean agePCI proceduresMedical recordsObservational study
2015
Hospital variation in admission to intensive care units for patients with acute myocardial infarction
Chen R, Strait KM, Dharmarajan K, Li SX, Ranasinghe I, Martin J, Fazel R, Masoudi FA, Cooke CR, Nallamothu BK, Krumholz HM. Hospital variation in admission to intensive care units for patients with acute myocardial infarction. American Heart Journal 2015, 170: 1161-1169. PMID: 26678638, PMCID: PMC5459386, DOI: 10.1016/j.ahj.2015.09.003.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAnterior Wall Myocardial InfarctionCoronary Care UnitsHealth Care RationingHospital MortalityHumansLength of StayMaleMiddle AgedOutcome and Process Assessment, Health CarePatient AdmissionQuality ImprovementRetrospective StudiesRisk AssessmentTriageUnited StatesConceptsAcute myocardial infarctionIntensive care unitCritical care therapiesRisk-standardized mortality ratesHospital risk-standardized mortality ratesICU admissionResource-intensive settingsCare therapyAMI patientsCare unitMyocardial infarctionMortality rateAdult hospitalizationsHospital variationNinth RevisionClinical ModificationICU triageInternational ClassificationBetter outcomesPatientsHospitalAdmissionPremier databaseTherapyAppropriate useNational Trends in Pulmonary Embolism Hospitalization Rates and Outcomes for Adults Aged ≥65 Years in the United States (1999 to 2010)
Minges KE, Bikdeli B, Wang Y, Kim N, Curtis JP, Desai MM, Krumholz HM. National Trends in Pulmonary Embolism Hospitalization Rates and Outcomes for Adults Aged ≥65 Years in the United States (1999 to 2010). The American Journal Of Cardiology 2015, 116: 1436-1442. PMID: 26409636, PMCID: PMC4841688, DOI: 10.1016/j.amjcard.2015.07.068.Peer-Reviewed Original ResearchConceptsHospitalization ratesMortality rateReadmission ratesBlack patientsPrincipal discharge diagnosis codeOlder adultsCause readmission rateHospital mortality rateProportion of patientsRetrospective cohort studyDischarge diagnosis codesSkilled nursing facilitiesNational trendsSignificant racial differencesHigh rateHome health careHospital stayAdults AgedCohort studyMore patientsTherapeutic advancesDiagnosis codesMedicare feeNursing facilitiesSignificant burdenHospital Variability in Use of Anticoagulant Strategies During Acute Myocardial Infarction Treated With an Early Invasive Strategy
Arnold SV, Li SX, Alexander KP, Spertus JA, Nallamothu BK, Curtis JP, Kosiborod M, Gupta A, Wang TY, Lin H, Dharmarajan K, Strait KM, Lowe TJ, Krumholz HM. Hospital Variability in Use of Anticoagulant Strategies During Acute Myocardial Infarction Treated With an Early Invasive Strategy. Journal Of The American Heart Association 2015, 4: e002009. PMID: 26077589, PMCID: PMC4599539, DOI: 10.1161/jaha.115.002009.Peer-Reviewed Original ResearchConceptsEarly invasive strategyAnticoagulant strategiesMyocardial infarctionBleeding rateInvasive strategyAcute myocardial infarction patientsOptimal anticoagulant strategyHalf of patientsPercutaneous coronary interventionAcute myocardial infarctionMyocardial infarction patientsHospital use patternsComparative effectiveness studiesRisk-standardized mortalityChoice of anticoagulantsMedian odds ratioCoronary interventionPatient factorsSystemic anticoagulationHospital variabilityInfarction patientsPrincipal diagnosisOdds ratioMultivariate regression modelPatterns of useNational trends in hospital length of stay for acute myocardial infarction in China
Li Q, Lin Z, Masoudi FA, Li J, Li X, Hernández-Díaz S, Nuti SV, Li L, Wang Q, Spertus JA, Hu FB, Krumholz HM, Jiang L. National trends in hospital length of stay for acute myocardial infarction in China. BMC Cardiovascular Disorders 2015, 15: 9. PMID: 25603877, PMCID: PMC4360951, DOI: 10.1186/1471-2261-15-9.Peer-Reviewed Original Research
2014
Hospital Strategy Uptake and Reductions in Unplanned Readmission Rates for Patients with Heart Failure: A Prospective Study
Bradley EH, Sipsma H, Horwitz LI, Ndumele CD, Brewster AL, Curry LA, Krumholz HM. Hospital Strategy Uptake and Reductions in Unplanned Readmission Rates for Patients with Heart Failure: A Prospective Study. Journal Of General Internal Medicine 2014, 30: 605-611. PMID: 25523470, PMCID: PMC4395590, DOI: 10.1007/s11606-014-3105-5.Peer-Reviewed Original ResearchConceptsRisk-standardized readmission ratesUnplanned readmission rateUptake of strategiesReadmission ratesHeart failureProspective studyGreater reductionAvoidable Rehospitalizations (STAAR) initiativeSame time pointsFinal analytic sampleParticipantsThe studyMain MeasuresWeHospitalPatientsWeb-based surveyAnalytic sampleTime pointsBaselineHospital strategiesSignificant reductionOne-quarterMonthsMore strategiesNational sampleAssociationTrends in Aortic Dissection Hospitalizations, Interventions, and Outcomes Among Medicare Beneficiaries in the United States, 2000–2011
Mody PS, Wang Y, Geirsson A, Kim N, Desai MM, Gupta A, Dodson JA, Krumholz HM. Trends in Aortic Dissection Hospitalizations, Interventions, and Outcomes Among Medicare Beneficiaries in the United States, 2000–2011. Circulation Cardiovascular Quality And Outcomes 2014, 7: 920-928. PMID: 25336626, PMCID: PMC4380171, DOI: 10.1161/circoutcomes.114.001140.Peer-Reviewed Original ResearchTrends in Acute Myocardial Infarction in Young Patients and Differences by Sex and Race, 2001 to 2010
Gupta A, Wang Y, Spertus JA, Geda M, Lorenze N, Nkonde-Price C, D'Onofrio G, Lichtman JH, Krumholz HM. Trends in Acute Myocardial Infarction in Young Patients and Differences by Sex and Race, 2001 to 2010. Journal Of The American College Of Cardiology 2014, 64: 337-345. PMID: 25060366, PMCID: PMC4415523, DOI: 10.1016/j.jacc.2014.04.054.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionLength of stayHospital mortalityHospitalization ratesClinical characteristicsAge groupsAMI hospitalization ratesYounger patientsMyocardial infarctionLonger LOSNationwide Inpatient Sample dataYoung womenU.S. hospital dischargesPrevalence of comorbiditiesPrincipal discharge diagnosisNational Inpatient SampleSex differencesContemporary longitudinal dataLarge national datasetMore comorbiditiesHospital dischargeDischarge diagnosisInpatient SampleMortality rateAge 30Hospital Variation in Intravenous Inotrope Use for Patients Hospitalized With Heart Failure
Allen LA, Fonarow GC, Grau-Sepulveda MV, Hernandez AF, Peterson PN, Partovian C, Li SX, Heidenreich PA, Bhatt DL, Peterson ED, Krumholz HM. Hospital Variation in Intravenous Inotrope Use for Patients Hospitalized With Heart Failure. Circulation Heart Failure 2014, 7: 251-260. PMID: 24488983, PMCID: PMC5459367, DOI: 10.1161/circheartfailure.113.000761.Peer-Reviewed Original ResearchMeSH KeywordsAgedCardiotonic AgentsCross-Sectional StudiesDose-Response Relationship, DrugFemaleFollow-Up StudiesGuideline AdherenceHeart FailureHospital MortalityHospitalsHumansInfusions, IntravenousInpatientsLength of StayMaleOutcome Assessment, Health CarePractice Patterns, Physicians'RegistriesRetrospective StudiesSurvival RateUnited StatesConceptsInotrope useHeart failureInotropic therapyInotropic agentsGuidelines-Heart Failure registryIntravenous inotropic agentsIntravenous inotropic therapyRisk-standardized ratesUse of inotropesHeart failure hospitalizationHospital-level ratesRandom hospital effectsFailure hospitalizationClinical characteristicsHospital factorsInpatient mortalityClinical factorsClinical outcomesHospital variationHospital characteristicsHospital effectsPatientsUS hospitalsHospitalStudy period