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. 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.Peer-Reviewed Original Research
2022
Cardiac Status Among Heart Failure Patients With Implantable Cardioverter Defibrillators Before, During, and After COVID-19 Lockdown
Lu Y, Jones PW, Murugiah K, Caraballo C, Mahajan S, Massey D, Ahmed R, Bader E, Krumholz H. Cardiac Status Among Heart Failure Patients With Implantable Cardioverter Defibrillators Before, During, and After COVID-19 Lockdown. Journal Of Cardiac Failure 2022, 28: 1372-1374. PMID: 35690314, PMCID: PMC9187866, DOI: 10.1016/j.cardfail.2022.05.012.Peer-Reviewed Original ResearchConceptsImplantable cardioverter defibrillatorHeart failure patientsCRT-D devicesCardiac statusFailure patientsHeart failureCardioverter defibrillatorCardiac resynchronization therapy defibrillatorAcute cardiac conditionsMedical care deliveryInpatient careCardiac conditionsPhysiologic markersInpatient servicesPatientsCardiac healthCare deliveryMarked restrictionImplanted ICDsMinneapolis/Saint PaulSex subgroupsDefibrillatorCOVID-19Telemedicine servicesCOVID-19 lockdownHealth 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 educationInfarctionPhysical Activity Among Patients With Intracardiac Remote Monitoring Devices Before, During, and After COVID-19–Related Restrictions
Lu Y, Jones PW, Murugiah K, Caraballo C, Massey DS, Mahajan S, Ahmed R, Bader EM, Krumholz HM. Physical Activity Among Patients With Intracardiac Remote Monitoring Devices Before, During, and After COVID-19–Related Restrictions. Journal Of The American College Of Cardiology 2022, 79: 309-310. PMID: 35057917, PMCID: PMC8763290, DOI: 10.1016/j.jacc.2021.11.010.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 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
2017
Admission 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
2016
Availability of Clinical Trial Data From Industry‐Sponsored Cardiovascular Trials
Murugiah K, Ritchie JD, Desai NR, Ross JS, Krumholz HM. Availability of Clinical Trial Data From Industry‐Sponsored Cardiovascular Trials. Journal Of The American Heart Association 2016, 5: e003307. PMID: 27098969, PMCID: PMC4859296, DOI: 10.1161/jaha.116.003307.Peer-Reviewed Original ResearchConceptsIndividual participant-level dataLarge cardiovascular trialsCardiovascular trialsParticipant-level dataClinical trial dataPharmaceutical companiesMajor pharmaceutical companiesIndustry-sponsored clinical trialsInterventional trialsAvailable trialsClinical trialsTrial dataTrialsPatientsSpecific reasons
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
Correlation between spinous process dimensions and ease of spinal anaesthesia
Shankar H, Rajput K, Murugiah K. Correlation between spinous process dimensions and ease of spinal anaesthesia. Indian Journal Of Anaesthesia 2012, 56: 250-254. PMID: 22923823, PMCID: PMC3425284, DOI: 10.4103/0019-5049.98769.Peer-Reviewed Original ResearchSingle independent predictorSpinal anesthesiaIndependent predictorsPost-dural puncture headacheSuccessful needle placementDifficult neuraxial blockConsecutive patientsNeuraxial anesthesiaNeuraxial blockPuncture headacheNeuraxial blockadeSpinal levelNeuraxial spaceSurgical proceduresPatientsAnesthesiaInstitutional approvalMean gapNeedle placementNumber of attemptsNeural structuresSingle attempt