2024
Hospital COVID-19 Burden and Adverse Event Rates
Metersky M, Rodrick D, Ho S, Galusha D, Timashenka A, Grace E, Marshall D, Eckenrode S, Krumholz H. Hospital COVID-19 Burden and Adverse Event Rates. JAMA Network Open 2024, 7: e2442936. PMID: 39495512, DOI: 10.1001/jamanetworkopen.2024.42936.Peer-Reviewed Original ResearchConceptsCOVID-19 burdenHospital admissionPatient safetyRelative riskCohort studyStudy of hospital admissionsAcute care hospitalsRisk-adjustment variablesRisk-adjusted ratesMedicare hospital admissionsCOVID-19 pandemicStaffing shortagesHospital characteristicsMain OutcomesHospital resilienceSurge capacityMedicare patientsCare hospitalHighest burdenPrevent declinesPatient admissionsStudy sampleElixhauser comorbiditiesCOVID-19Low burdenIncorporating Medicare Advantage Admissions Into the CMS Hospital-Wide Readmission Measure
Kyanko K, Sahay K, Wang Y, Li S, Schreiber M, Hager M, Myers R, Johnson W, Zhang J, Krumholz H, Suter L, Triche E. Incorporating Medicare Advantage Admissions Into the CMS Hospital-Wide Readmission Measure. JAMA Network Open 2024, 7: e2414431. PMID: 38829614, PMCID: PMC11148674, DOI: 10.1001/jamanetworkopen.2024.14431.Peer-Reviewed Original ResearchConceptsCenters for Medicare & Medicaid ServicesSpecialty subgroupsPerformance quintileMedicare AdvantageReadmission ratesRisk-standardized readmission ratesHospital-wide readmission measureHospital outcome measuresTest-retest reliabilityRisk-adjustment variablesMeasurement reliabilityAdministrative claims dataReadmission measuresImprove measurement reliabilityIntegrated data repositoryMA beneficiariesQuintile rankingsMedicare beneficiariesMedicaid ServicesAll-causePublic reportingStudy assessed differencesClaims dataOutcome measuresMA cohort
2023
Association of Neighborhood-Level Marginalization With Health Care Use and Clinical Outcomes Following Hospital Discharge in Patients Who Underwent Coronary Catheterization for Acute Myocardial Infarction in a Single-Payer Health Care System
Akioyamen L, Abdel-Qadir H, Han L, Sud M, Mistry N, Alter D, Atzema C, Austin P, Bhatia R, Booth G, Dhalla I, Ha A, Jackevicius C, Kapral M, Krumholz H, Lee D, McNaughton C, Roifman I, Schull M, Sivaswamy A, Tu K, Udell J, Wijeysundera H, Ko D. Association of Neighborhood-Level Marginalization With Health Care Use and Clinical Outcomes Following Hospital Discharge in Patients Who Underwent Coronary Catheterization for Acute Myocardial Infarction in a Single-Payer Health Care System. Circulation Cardiovascular Quality And Outcomes 2023, 16: e010063. PMID: 38050754, DOI: 10.1161/circoutcomes.123.010063.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionHealth care systemHospital dischargeClinical outcomesSocioeconomic statusFirst acute myocardial infarctionProportional hazards regression modelsCare systemSecondary prevention medicationsWorse clinical outcomesHealth service usePopulation-based studyPrimary care physiciansHealth care useHazards regression modelsGreater long-term riskPrescription medication useSingle-payer health care systemUniversal health care systemLong-term riskLow socioeconomic statusCause mortalityDays postdischargePrevention medicationsRelationship Between In-Hospital Adverse Events and Hospital Performance on 30-Day All-cause Mortality and Readmission for Patients With Heart Failure
Wang Y, Eldridge N, Metersky M, Rodrick D, Eckenrode S, Mathew J, Galusha D, Peterson A, Hunt D, Normand S, Krumholz H. Relationship Between In-Hospital Adverse Events and Hospital Performance on 30-Day All-cause Mortality and Readmission for Patients With Heart Failure. Circulation Cardiovascular Quality And Outcomes 2023, 16: e009573. PMID: 37463255, PMCID: PMC10351904, DOI: 10.1161/circoutcomes.122.009573.Peer-Reviewed Original ResearchConceptsMore adverse eventsAdverse eventsHeart failureCause mortalityReadmission ratesHigh riskMedicare Patient Safety Monitoring SystemHospital-acquired adverse eventsIn-Hospital Adverse EventsHospital adverse eventsRate of patientsPatient Safety DatabasePerformance categoriesAdverse event dataCross-sectional studyUnited States CentersHospital performanceHospital characteristicsReadmission dataPatient riskMAIN OUTCOMEPatientsWorst hospitalsHospitalHigh mortalityIn-Hospital Observation on Oral Diuretics After Treatment for Acute Decompensated Heart Failure: Evaluating the Utility
Ivey-Miranda J, Rao V, Cox Z, Moreno-Villagomez J, Mahoney D, Maulion C, Bellumkonda L, Turner J, Collins S, Wilson F, Krumholz H, Testani J. In-Hospital Observation on Oral Diuretics After Treatment for Acute Decompensated Heart Failure: Evaluating the Utility. Circulation Heart Failure 2023, 16: e010206. PMID: 36896716, PMCID: PMC10186250, DOI: 10.1161/circheartfailure.122.010206.Peer-Reviewed Original ResearchConceptsAcute decompensated heart failureDecompensated heart failureDiuretic responseDiuretic dosingOral diureticsHeart failureMulticenter cohortHospital observationLower readmission ratesNet fluid balanceDays postdischargeReadmission ratesHospital readmissionUrine outputReadmission riskFluid statusFluid balanceHospital measuresDose selectionCohortProvider decisionsWeight changeReadmissionDiureticsPatients
2022
Hospital Variation of Spironolactone Use in Patients Hospitalized for Heart Failure in China—The China PEACE Retrospective Heart Failure Study
Yu Y, Guan W, Masoudi FA, Wang B, He G, Spertus JA, Lu Y, Krumholz HM, Li J. Hospital Variation of Spironolactone Use in Patients Hospitalized for Heart Failure in China—The China PEACE Retrospective Heart Failure Study. Journal Of The American Heart Association 2022, 11: e026300. PMID: 36172964, PMCID: PMC9673705, DOI: 10.1161/jaha.122.026300.Peer-Reviewed Original ResearchConceptsSpironolactone prescriptionSpironolactone useHeart failureMedian odds ratioIdeal patientAldosterone antagonistsHospital variationMedian rateReduced ejection fractionUse of spironolactoneMultivariable linear regression modelsHeart Failure StudyEjection fractionHospital characteristicsOdds ratioRepresentative cohortPatientsHospitalChinese hospitalsInappropriate usePrescriptionSpironolactoneSelect individualsAntagonistHigh rateAnalysis of Hospital-Level Readmission Rates and Variation in Adverse Events Among Patients With Pneumonia in the United States
Wang Y, Eldridge N, Metersky ML, Rodrick D, Faniel C, Eckenrode S, Mathew J, Galusha DH, Tasimi A, Ho SY, Jaser L, Peterson A, Normand ST, Krumholz HM. Analysis of Hospital-Level Readmission Rates and Variation in Adverse Events Among Patients With Pneumonia in the United States. JAMA Network Open 2022, 5: e2214586. PMID: 35639379, PMCID: PMC9157270, DOI: 10.1001/jamanetworkopen.2022.14586.Peer-Reviewed Original ResearchConceptsRisk-standardized readmission ratesMedicare Patient Safety Monitoring SystemCause readmission rateAdverse eventsReadmission ratesHigh riskHospital-level readmission ratesHigher patient riskHospital adverse eventsAdverse event dataCross-sectional studyHospital performanceIndex hospitalizationMedian ageHospital characteristicsMedical recordsReadmission dataPatient riskHospital careMAIN OUTCOMEPneumoniaHospital levelPatientsReadmissionGreater risk12th Korea Healthcare Congress 2021; 김치국부터 마시지 말라; The Time for Digital Health is Almost Here
Krumholz HM. 12th Korea Healthcare Congress 2021; 김치국부터 마시지 말라; The Time for Digital Health is Almost Here. Yonsei Medical Journal 2022, 63: 493-498. PMID: 35512753, PMCID: PMC9086693, DOI: 10.3349/ymj.2022.63.5.493.Peer-Reviewed Original ResearchAssociation between Residential Segregation and Long-Term Acute Care Hospital Performance on Improvement in Function among Ventilated Patients.
Jain S, Walkey AJ, Law AC, Ferrante LE, Lindenauer PK, Krumholz HM. Association between Residential Segregation and Long-Term Acute Care Hospital Performance on Improvement in Function among Ventilated Patients. Annals Of The American Thoracic Society 2022, 19: 147-150. PMID: 34644244, PMCID: PMC8787797, DOI: 10.1513/annalsats.202107-796rl.Peer-Reviewed Original Research
2021
Changes in ST segment elevation myocardial infarction hospitalisations in China from 2011 to 2015
Zhou T, Li X, Lu Y, Murugiah K, Bai X, Hu S, Gao Y, Masoudi FA, Krumholz HM, Li J, . Changes in ST segment elevation myocardial infarction hospitalisations in China from 2011 to 2015. Open Heart 2021, 8: e001666. PMID: 34599073, PMCID: PMC8488733, DOI: 10.1136/openhrt-2021-001666.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionPrehospital delayMyocardial infarctionSegment elevation myocardial infarctionProportion of patientsElevation myocardial infarctionAcute cardiovascular careAcute myocardial infarctionWeighted national estimateHealth service capacityRisk-adjusted ratesAcute reperfusionEligible patientsHospital deathReperfusion therapyMedical chartsPatient characteristicsHospital treatmentPatient outcomesRandom cohortCardiovascular diseaseCardiovascular carePatientsNational estimatesStandardised definitionsMulticentre methodological study to create a publicly available score of hospital financial standing in the USA
Zinoviev R, Krumholz HM, Ciccarone R, Antle R, Forman HP. Multicentre methodological study to create a publicly available score of hospital financial standing in the USA. BMJ Open 2021, 11: e046500. PMID: 34301654, PMCID: PMC8311305, DOI: 10.1136/bmjopen-2020-046500.Peer-Reviewed Original ResearchConceptsCredit ratingsFinancial dataBond ratingsMoody’s credit ratingsHospital's financial standingHospital financial dataFinancial literatureFinancial stabilityFinancial indicatorsFinancial scoresFinancial trendsFinancial healthFinancial standingFinancial metricsGreater shareMedicare dischargesWeighted variablesShareHospital operationsUnique variablesSingle composite scoreVariablesMoodyHealth systemModelIncorporating Present-on-Admission Indicators in Medicare Claims to Inform Hospital Quality Measure Risk Adjustment Models
Triche EW, Xin X, Stackland S, Purvis D, Harris A, Yu H, Grady JN, Li SX, Bernheim SM, Krumholz HM, Poyer J, Dorsey K. Incorporating Present-on-Admission Indicators in Medicare Claims to Inform Hospital Quality Measure Risk Adjustment Models. JAMA Network Open 2021, 4: e218512. PMID: 33978722, PMCID: PMC8116982, DOI: 10.1001/jamanetworkopen.2021.8512.Peer-Reviewed Original ResearchConceptsPOA indicatorRisk factorsOutcome measuresQuality outcome measuresRisk-adjustment modelsClaims dataAdmission indicatorsPatient risk factorsAcute myocardial infarctionPatient-level outcomesAdministrative claims dataQuality improvement studyClaims-based measuresComparative effectiveness studiesPatient claims dataInternational Statistical ClassificationMortality outcome measuresRelated Health ProblemsHospital quality measuresRisk model performanceHospital stayIndex admissionCare algorithmHeart failureMortality outcomesAdministrative Claims Measure for Profiling Hospital Performance Based on 90-Day All-Cause Mortality Following Coronary Artery Bypass Graft Surgery
Mori M, Nasir K, Bao H, Jimenez A, Legore SS, Wang Y, Grady J, Lama SD, Brandi N, Lin Z, Kurlansky P, Geirsson A, Bernheim SM, Krumholz HM, Suter LG. Administrative Claims Measure for Profiling Hospital Performance Based on 90-Day All-Cause Mortality Following Coronary Artery Bypass Graft Surgery. Circulation Cardiovascular Quality And Outcomes 2021, 14: e006644. PMID: 33535776, DOI: 10.1161/circoutcomes.120.006644.Peer-Reviewed Original ResearchConceptsRisk-standardized mortality ratesCoronary artery bypass graft surgeryArtery bypass graft surgeryBypass graft surgeryMortality rateGraft surgeryC-statisticMedicaid ServicesAdministrative Claims MeasureCause mortality ratesMortality measuresUnadjusted mortality ratesProfiling Hospital PerformanceHierarchical logistic regression modelsAlternate payment modelsHospital performanceLogistic regression modelsCABG recoveryPayment modelsCABG surgeryCause mortalityCABG proceduresDays postsurgeryHospital levelSurgery
2020
Variation in Risk-standardized Rates and Causes of Unplanned Hospital Visits Within 7 Days of Hospital Outpatient Surgery
Desai MM, Zogg CK, Ranasinghe I, Parzynski CS, Lin Z, Gorbaty M, Merrill A, Krumholz HM, Drye EE. Variation in Risk-standardized Rates and Causes of Unplanned Hospital Visits Within 7 Days of Hospital Outpatient Surgery. Annals Of Surgery 2020, 276: e714-e720. PMID: 33214469, DOI: 10.1097/sla.0000000000004627.Peer-Reviewed Original ResearchConceptsUnplanned hospital visitsHospital outpatient surgeryHospital outpatient departmentsHospital visitsOutpatient surgeryShort-term safety outcomesFacility-level variationHierarchical logistic regression modelingPost-surgical visitSame-day surgeryHalf of proceduresLogistic regression modelingUrinary retentionStudy cohortUnplanned visitsClinical comorbiditiesOutpatient departmentOutpatient settingPreventable conditionPreventable reasonsBACKGROUND DATASafety outcomesMedicare feeSurgeryService beneficiariesEvaluation of Case Volumes of a Heart Transplant Program and Short-term Outcomes After Changes in the United Network for Organ Sharing Donor Heart Allocation System
Mori M, Wilson L, Ali A, Ahmad T, Anwer M, Jacoby D, Geirsson A, Krumholz HM. Evaluation of Case Volumes of a Heart Transplant Program and Short-term Outcomes After Changes in the United Network for Organ Sharing Donor Heart Allocation System. JAMA Network Open 2020, 3: e2017513. PMID: 32945877, PMCID: PMC7501535, DOI: 10.1001/jamanetworkopen.2020.17513.Peer-Reviewed Original ResearchConceptsYale-New Haven HospitalHeart transplant programShort-term outcomesHeart transplantHeart transplant volumeNew Haven HospitalDonor heartsPatient selectionRecipient selectionTransplant programsTransplant volumeWaiting listCase volumeDonor heart allocation systemPre-post cohort studyConservative patient selectionUnused donor heartsHeart allocation systemHigher median numberCirculatory assist devicesCohort studyPatient characteristicsMore patientsSingle centerCenter volumeQuality of informed consent documents among US. hospitals: a cross-sectional study
Spatz ES, Bao H, Herrin J, Desai V, Ramanan S, Lines L, Dendy R, Bernheim SM, Krumholz HM, Lin Z, Suter LG. Quality of informed consent documents among US. hospitals: a cross-sectional study. BMJ Open 2020, 10: e033299. PMID: 32434934, PMCID: PMC7247389, DOI: 10.1136/bmjopen-2019-033299.Peer-Reviewed Original ResearchConceptsInformed consent documentsHOSPITAL scoreUS hospitalsMean hospital scoresRetrospective observational studyConsent documentsCross-sectional studyEight-item instrumentService patientsElective proceduresProcedure typeObservational studySurgical proceduresMedicare feeHospitalHospital qualityMeasure scoresInformed consentMost hospitalsSpearman correlationScoresFace validityIndependent ratersOutcomesStakeholder feedbackAvailability of Telemedicine Services Across Hospitals in the United States in 2018: A Cross-sectional Study
Jain S, Khera R, Lin Z, Ross JS, Krumholz HM. Availability of Telemedicine Services Across Hospitals in the United States in 2018: A Cross-sectional Study. Annals Of Internal Medicine 2020, 173: m20-1201. PMID: 32353106, PMCID: PMC7212823, DOI: 10.7326/m20-1201.Peer-Reviewed Original ResearchAssociation Between Medicare Expenditures and Adverse Events for Patients With Acute Myocardial Infarction, Heart Failure, or Pneumonia in the United States
Wang Y, Eldridge N, Metersky ML, Sonnenfeld N, Rodrick D, Fine JM, Eckenrode S, Galusha DH, Tasimi A, Hunt DR, Bernheim SM, Normand ST, Krumholz HM. Association Between Medicare Expenditures and Adverse Events for Patients With Acute Myocardial Infarction, Heart Failure, or Pneumonia in the United States. JAMA Network Open 2020, 3: e202142. PMID: 32259263, PMCID: PMC7139276, DOI: 10.1001/jamanetworkopen.2020.2142.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMedicare Patient Safety Monitoring SystemAdverse event ratesAdverse eventsHeart failureMedicare expendituresService patientsMyocardial infarctionMedicare feeEvent ratesHigher adverse event ratesCare expendituresRisk-standardized ratesPatients 65 yearsAdverse event dataAcute care hospitalsCross-sectional studyFinal study sampleInpatient care expendituresRate of occurrenceDates of analysisPatient characteristicsCare hospitalMean ageInpatient careQuality of Care for Patients Hospitalized for Heart Failure in China
Gupta A, Yu Y, Tan Q, Liu S, Masoudi FA, Du X, Zhang J, Krumholz HM, Li J. Quality of Care for Patients Hospitalized for Heart Failure in China. JAMA Network Open 2020, 3: e1918619. PMID: 31913489, PMCID: PMC6991250, DOI: 10.1001/jamanetworkopen.2019.18619.Peer-Reviewed Original ResearchConceptsQuality of careHospital levelHF careEligible patientsComposite performance scoreEvidence-based β-blockersAngiotensin-converting enzyme inhibitorRetrospective cross-sectional studyVentricular ejection fraction assessmentMedian rateAngiotensin receptor blockersMedian patient ageHeart failure epidemicCross-sectional studyEjection fraction assessmentMedian odds ratioPerformance scoresHF hospitalizationReceptor blockersPatient ageHeart failureHospital admissionMedical recordsOdds ratioMAIN OUTCOME
2019
Patient-Reported Quality of Hospital Discharge Transitions: Results from the SILVER-AMI Study
Richards BG, Hajduk AM, Perry J, Krumholz HM, Khan AM, Chaudhry SI. Patient-Reported Quality of Hospital Discharge Transitions: Results from the SILVER-AMI Study. Journal Of General Internal Medicine 2019, 35: 808-814. PMID: 31654359, PMCID: PMC7080904, DOI: 10.1007/s11606-019-05414-8.Peer-Reviewed Original ResearchConceptsDays of dischargeEmergency department utilizationAcute myocardial infarctionPatient-reported qualityHospital discharge processOlder patientsAcute Myocardial Infarction StudyMyocardial Infarction StudyProspective cohort studyMedical record reviewEmergency room utilizationAdults age 75Key ResultsA totalHospital Consumer AssessmentSILVER-AMI StudyHospital discharge transitionsHigh-risk periodDesignMulti-centerCohort studyHospital dischargeMedian ageClinical outcomesRecord reviewAdverse outcomesResultsA total