2009
Determinants of Cardiac Catheterization Use in Older Medicare Patients With Acute Myocardial Infarction
Ko DT, Ross JS, Wang Y, Krumholz HM. Determinants of Cardiac Catheterization Use in Older Medicare Patients With Acute Myocardial Infarction. Circulation Cardiovascular Quality And Outcomes 2009, 3: 54-62. PMID: 20123672, PMCID: PMC3024143, DOI: 10.1161/circoutcomes.109.858456.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedAged, 80 and overCardiac CatheterizationChi-Square DistributionComorbidityFemaleHemorrhageHospitalizationHumansLikelihood FunctionsLogistic ModelsMaleMedicareMyocardial InfarctionPatient SelectionPractice Patterns, Physicians'Risk AssessmentRisk FactorsSeverity of Illness IndexSex FactorsTime FactorsTreatment OutcomeUnited StatesConceptsAcute myocardial infarctionCardiac catheterization useCardiac catheterizationInappropriate indicationsAMI patientsAppropriate indicationsMyocardial infarctionRisk scoreCardiology/American Heart Association class IBaseline cardiovascular riskOlder Medicare patientsHigh-risk patientsDemographic factorsMore comorbiditiesCardiovascular riskOlder patientsMale sexProcedure indicationFemale sexMedicare patientsAmerican CollegeAMI admissionsMedicare feePatientsCatheterization
2008
Regional Variation in Cardiac Catheterization Appropriateness and Baseline Risk After Acute Myocardial Infarction
Ko DT, Wang Y, Alter DA, Curtis JP, Rathore SS, Stukel TA, Masoudi FA, Ross JS, Foody JM, Krumholz HM. Regional Variation in Cardiac Catheterization Appropriateness and Baseline Risk After Acute Myocardial Infarction. Journal Of The American College Of Cardiology 2008, 51: 716-723. PMID: 18279735, DOI: 10.1016/j.jacc.2007.10.039.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionCardiac catheterization useBaseline riskCardiac catheterizationMyocardial infarctionCardiology/American Heart Association classificationRisk-standardized mortality ratesAmerican Heart Association classificationCardiac catheterization ratesGRACE risk scoreHigh-risk patientsClass I patientsClass III patientsClass II patientsPatient appropriatenessCatheterization ratesHospital admissionI patientsPrimary outcomeAMI patientsII patientsIII patientsAppropriate indicationsInvasive strategyPhysician characteristics
2006
Regional Differences in Process of Care and Outcomes for Older Acute Myocardial Infarction Patients in the United States and Ontario, Canada
Ko DT, Krumholz HM, Wang Y, Foody JM, Masoudi FA, Havranek EP, You JJ, Alter DA, Stukel TA, Newman AM, Tu JV. Regional Differences in Process of Care and Outcomes for Older Acute Myocardial Infarction Patients in the United States and Ontario, Canada. Circulation 2006, 115: 196-203. PMID: 17190861, DOI: 10.1161/circulationaha.106.657601.Peer-Reviewed Original ResearchConceptsRisk-standardized mortality ratesTreatment patternsAMI patientsMortality rateOlder acute myocardial infarction patientsInvasive cardiac procedure useAcute myocardial infarction treatmentAcute myocardial infarction patientsBeta-blocker useCardiac catheterization useCardiac procedure useEnzyme inhibitor useMyocardial infarction patientsProcess of careService Medicare beneficiariesHealth care delivery systemSimilar treatment patternsMyocardial infarction treatmentCare delivery systemInvasive cardiac therapyBaseline characteristicsInhibitor useMedication useIllness severityRandomized trials
2004
Regional variations in racial differences in the treatment of elderly patients hospitalized with acute myocardial infarction
Rathore SS, Masoudi FA, Havranek EP, Krumholz HM. Regional variations in racial differences in the treatment of elderly patients hospitalized with acute myocardial infarction. The American Journal Of Medicine 2004, 117: 811-822. PMID: 15589484, PMCID: PMC2790535, DOI: 10.1016/j.amjmed.2004.06.034.Peer-Reviewed Original ResearchConceptsBeta-blocker useMyocardial infarctionWhite patientsCoronary revascularizationBlack patientsRacial differencesCardiac catheterization useLower crude ratesUse of aspirinDay of admissionHealth care useTreatment of patientsAcute myocardial infarctionService Medicare beneficiariesMedical record dataQuality of careElderly feeRevascularization useAspirin useMultivariable adjustmentElderly patientsCardiac catheterizationCardiac proceduresCare useCrude rate
2002
Race and sex differences in the refusal of cardiac catheterization among elderly patients hospitalized with acute myocardial infarction
Rathore SS, Ordin DL, Krumholz HM. Race and sex differences in the refusal of cardiac catheterization among elderly patients hospitalized with acute myocardial infarction. American Heart Journal 2002, 144: 1052-1056. PMID: 12486430, DOI: 10.1067/mhj.2002.126122.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionCardiac catheterizationPatient raceElderly patientsMyocardial infarctionSex differencesRefusal rateWhite womenCardiac catheterization useCardiac procedure useRisk-standardized ratesWhite menBlack womenBlack menMultivariate adjustmentOverall cohortHospital characteristicsMedical recordsMedicare beneficiariesCatheterizationPatientsProcedure useSex differences in cardiac catheterization after acute myocardial infarction: the role of procedure appropriateness.
Rathore SS, Wang Y, Radford MJ, Ordin DL, Krumholz HM. Sex differences in cardiac catheterization after acute myocardial infarction: the role of procedure appropriateness. Annals Of Internal Medicine 2002, 137: 487-93. PMID: 12230349, DOI: 10.7326/0003-4819-137-6-200209170-00008.Peer-Reviewed Original ResearchConceptsCardiac catheterization useAcute myocardial infarctionCardiac catheterizationMyocardial infarctionMultivariable adjustmentEquivocal indicationsSex differencesProcedure useChart-abstracted dataLower crude ratesRisk-standardized ratesU.S. acute care hospitalsDays of hospitalizationAcute care hospitalsClinical guidelinesHospital characteristicsMedicare patientsCrude rateInappropriate treatmentRetrospective analysisCatheterizationInfarctionPatientsElderly personsWomen