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 ResearchMeSH KeywordsFemaleHealth StatusHospitalizationHumansMaleMyocardial InfarctionRisk FactorsSex CharacteristicsSex FactorsConceptsAcute 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. hospitalsWomenInfarctionOutcomesTiming of Blood Draws Among Patients Hospitalized in a Large Academic Medical Center
Caraballo C, Mahajan S, Murugiah K, Mortazavi B, Lu Y, Khera R, Krumholz H. Timing of Blood Draws Among Patients Hospitalized in a Large Academic Medical Center. JAMA 2023, 329: 255-257. PMID: 36648476, PMCID: PMC9856620, DOI: 10.1001/jama.2022.21509.Commentaries, Editorials and Letters
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 definitions
2020
Trends in Reoperative Coronary Artery Bypass Graft Surgery for Older Adults in the United States, 1998 to 2017
Mori M, Wang Y, Murugiah K, Khera R, Gupta A, Vallabhajosyula P, Masoudi FA, Geirsson A, Krumholz HM. Trends in Reoperative Coronary Artery Bypass Graft Surgery for Older Adults in the United States, 1998 to 2017. Journal Of The American Heart Association 2020, 9: e016980. PMID: 33045889, PMCID: PMC7763387, DOI: 10.1161/jaha.120.016980.Peer-Reviewed Original ResearchConceptsCoronary artery bypass graft surgeryFirst-time coronary artery bypass graft surgeryArtery bypass graft surgeryBypass graft surgeryGraft surgeryMedicare feeOlder adultsPatient baseline characteristicsData of adultsYear of dischargeProportion of womenService inpatientsIndex surgeryBaseline characteristicsHospital dischargeOlder patientsMedian agePrimary outcomeCox regressionService patientsUnique patientsPatientsSurgeryAnnual declineDemographic subgroups
2019
Association of in-hospital resource utilization with post-acute spending in Medicare beneficiaries hospitalized for acute myocardial infarction: a cross-sectional study
Nuti SV, Li SX, Xu X, Ott LS, Lagu T, Desai NR, Murugiah K, Duan M, Martin J, Kim N, Krumholz HM. Association of in-hospital resource utilization with post-acute spending in Medicare beneficiaries hospitalized for acute myocardial infarction: a cross-sectional study. BMC Health Services Research 2019, 19: 190. PMID: 30909904, PMCID: PMC6432744, DOI: 10.1186/s12913-019-4018-0.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionPost-acute care costsPost-acute care utilizationOverall episode costsPremier Healthcare DatabaseHospital resource utilizationStudy of patientsCross-sectional studyGreater resource utilizationPost-acute periodHigh cost tertilesHigh-cost hospitalsHospital meanResultsAmong patientsReadmission ratesCare utilizationHospitalization costsEpisode costsMedicare feeTertileMedicare beneficiariesMortality rateHealthcare databasesService beneficiaries
2017
Urban–Rural Comparisons in Hospital Admission, Treatments, and Outcomes for ST-Segment–Elevation Myocardial Infarction in China From 2001 to 2011
Li X, Murugiah K, Li J, Masoudi FA, Chan PS, Hu S, Spertus JA, Wang Y, Downing NS, Krumholz HM, Jiang L. Urban–Rural Comparisons in Hospital Admission, Treatments, and Outcomes for ST-Segment–Elevation Myocardial Infarction in China From 2001 to 2011. Circulation Cardiovascular Quality And Outcomes 2017, 10: e003905. PMID: 29158421, PMCID: PMC6312853, DOI: 10.1161/circoutcomes.117.003905.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overChinaDisease ManagementFemaleHealthcare DisparitiesHospital MortalityHospitalizationHospitals, RuralHospitals, UrbanHumansMaleMiddle AgedOdds RatioQuality ImprovementRetrospective StudiesRural PopulationST Elevation Myocardial InfarctionSurvival RateTime FactorsUrban PopulationConceptsEvidence-based treatmentsMyocardial infarctionEnzyme inhibitors/angiotensin receptor blockersRural hospitalsST-segment elevation myocardial infarctionUrban-rural disparitiesAngiotensin receptor blockersElevation myocardial infarctionAdjusted odds ratioResource-intensive careRisk-adjusted ratesHospital deathReperfusion therapyReceptor blockersHospital admissionCardiac facilitiesPatient outcomesOdds ratioCare persistUrban hospitalΒ-blockersBetter outcomesRural careHealthcare resourcesST segmentQuality of Care in the United States Territories, 1999–2012
Nuti SV, Wang Y, Masoudi FA, Nunez-Smith M, Normand ST, Murugiah K, Rodríguez-Vilá O, Ross JS, Krumholz HM. Quality of Care in the United States Territories, 1999–2012. Medical Care 2017, 55: 886-892. PMID: 28906314, PMCID: PMC6482857, DOI: 10.1097/mlr.0000000000000797.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionHeart failureHospitalization ratesMedicare beneficiariesMortality rateService Medicare beneficiariesQuality of careRecent study periodPneumonia hospitalizationsMyocardial infarctionPatient outcomesMillions of AmericansMedicare feeHealth outcomesPneumoniaService beneficiariesHospital reimbursementUnique beneficiariesHealth equityStudy periodPatient paymentsInpatient paymentsHealth careMortalityCareAre non-ST-segment elevation myocardial infarctions missing in China?
Murugiah K, Wang Y, Nuti SV, Li X, Li J, Zheng X, Downing NS, Desai NR, Masoudi FA, Spertus JA, Jiang L, Krumholz HM, Group F. Are non-ST-segment elevation myocardial infarctions missing in China? European Heart Journal - Quality Of Care And Clinical Outcomes 2017, 3: 319-327. PMID: 28950309, DOI: 10.1093/ehjqcco/qcx025.Peer-Reviewed Original ResearchAdmission Glucose and In-hospital Mortality after Acute Myocardial Infarction in Patients with or without Diabetes: A Cross-sectional Study
Zhao S, Murugiah K, Li N, Li X, Xu ZH, Li J, Cheng C, Mao H, Downing NS, Krumholz HM, Jiang LX. Admission Glucose and In-hospital Mortality after Acute Myocardial Infarction in Patients with or without Diabetes: A Cross-sectional Study. Chinese Medical Journal 2017, 130: 767-775. PMID: 28345539, PMCID: PMC5381309, DOI: 10.4103/0366-6999.202733.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionAbsence of diabetesAdverse clinical eventsAdmission glucoseNondiabetic patientsClinical eventsPrognostic valueBlood glucoseMyocardial infarctionRepresentative sampleGlucose levelsPatientsAdmissionMortalityGlucosePrior studiesHyperglycemiaInfarctionDiabetesMixed resultsStatistical power
2015
Trends in Short- and Long-Term Outcomes for Takotsubo Cardiomyopathy Among Medicare Fee-for-Service Beneficiaries, 2007 to 2012
Murugiah K, Wang Y, Desai NR, Spatz ES, Nuti SV, Dreyer RP, Krumholz HM. Trends in Short- and Long-Term Outcomes for Takotsubo Cardiomyopathy Among Medicare Fee-for-Service Beneficiaries, 2007 to 2012. JACC Heart Failure 2015, 4: 197-205. PMID: 26746377, PMCID: PMC5323042, DOI: 10.1016/j.jchf.2015.09.013.Peer-Reviewed Original ResearchConceptsLong-term outcomesReadmission ratesNonwhite patientsHospitalization ratesSecondary diagnosisMedicare feeYears of ageTakotsubo cardiomyopathyWorse outcomesWhite racePatientsService beneficiariesHospitalMortalityTime pointsOutcomesHospitalizationCohortDiagnosisRepresentative dataTakotsuboTTCReadmissionCardiomyopathyYearsNational Quality Assessment Evaluating Spironolactone Use During Hospitalization for Acute Myocardial Infarction (AMI) in China: China Patient‐centered Evaluation Assessment of Cardiac Events (PEACE)‐Retrospective AMI Study, 2001, 2006, and 2011
Guan W, Murugiah K, Downing N, Li J, Wang Q, Ross JS, Desai NR, Masoudi FA, Spertus JA, Li X, Krumholz HM, Jiang L, Group T. National Quality Assessment Evaluating Spironolactone Use During Hospitalization for Acute Myocardial Infarction (AMI) in China: China Patient‐centered Evaluation Assessment of Cardiac Events (PEACE)‐Retrospective AMI Study, 2001, 2006, and 2011. Journal Of The American Heart Association 2015, 4: e001718. PMID: 26071031, PMCID: PMC4599529, DOI: 10.1161/jaha.114.001718.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionHeart failureMyocardial infarctionUse of spironolactoneNational practice patternsProportion of patientsAssessment of eligibilitySpironolactone useAldosterone antagonistsSystolic dysfunctionCardiac eventsAMI patientsChina PatientPatient eligibilityPatient groupUnknown indicationPractice patternsIdeal patientPatientsSpironolactoneEligibilityAppropriate useInfarctionDiabetesNational quality assessment
2014
Trends in Hospitalizations Among Medicare Survivors of Aortic Valve Replacement in the United States From 1999 to 2010
Murugiah K, Wang Y, Dodson JA, Nuti SV, Dharmarajan K, Ranasinghe I, Cooper Z, Krumholz HM. Trends in Hospitalizations Among Medicare Survivors of Aortic Valve Replacement in the United States From 1999 to 2010. The Annals Of Thoracic Surgery 2014, 99: 509-517. PMID: 25527425, PMCID: PMC4454375, DOI: 10.1016/j.athoracsur.2014.08.045.Peer-Reviewed Original ResearchConceptsAortic valve replacementValve replacementHospitalization ratesAnnual Medicare paymentsPrincipal diagnosisOne-year hospitalization rateCommon principal diagnosisRisk of hospitalizationMean lengthGeneral Medicare populationMedicare paymentsPostoperative complicationsHeart failureBlack patientsMedicare patientsHospitalizationMedicare populationMedicare beneficiariesMortality ratePatientsStayCumulative daysCumulative lengthCertain subgroupsSurvivors
2012
Seasonal Variation in Hypertensive Emergency Hospitalization
Deshmukh A, Pant S, Kumar G, Murugiah K, Mehta J. Seasonal Variation in Hypertensive Emergency Hospitalization. Journal Of Clinical Hypertension 2012, 14: 269-270. PMID: 22458752, PMCID: PMC8108850, DOI: 10.1111/j.1751-7176.2012.00597.x.Peer-Reviewed Original Research