2011
Do Imaging Studies Performed in Physician Offices Increase Downstream Utilization? An Empiric Analysis of Cardiac Stress Testing With Imaging
Chen J, Fazel R, Ross JS, McNamara RL, Einstein AJ, Al-Mallah M, Krumholz HM, Nallamothu BK. Do Imaging Studies Performed in Physician Offices Increase Downstream Utilization? An Empiric Analysis of Cardiac Stress Testing With Imaging. JACC Cardiovascular Imaging 2011, 4: 630-637. PMID: 21679898, PMCID: PMC3319749, DOI: 10.1016/j.jcmg.2011.04.003.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overCardiac CatheterizationChi-Square DistributionEchocardiography, StressEmpirical ResearchFemaleHealthcare DisparitiesHumansInsurance, HealthLogistic ModelsMaleMiddle AgedMyocardial Perfusion ImagingMyocardial RevascularizationOffice VisitsOutpatient Clinics, HospitalPractice Patterns, Physicians'Predictive Value of TestsResidence CharacteristicsTime FactorsUnited StatesYoung AdultConceptsMyocardial perfusion imagingSubsequent myocardial perfusion imagingProportion of patientsStress echocardiographyCardiac catheterizationHospital outpatient settingPhysician's officeOutpatient settingStress testingSubsequent cardiac testingCardiac stress testingDownstream resource utilizationHospital outpatient facilitiesCardiac testingPrivate health insuranceDownstream testingOffice imagingPerfusion imagingCatheterizationImaging studiesOutpatient imagingPatientsHealth insuranceLower ratesHigh rate
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
2007
Certificate of Need Regulation and Cardiac Catheterization Appropriateness After Acute Myocardial Infarction
Ross JS, Ho V, Wang Y, Cha SS, Epstein AJ, Masoudi FA, Nallamothu BK, Krumholz HM. Certificate of Need Regulation and Cardiac Catheterization Appropriateness After Acute Myocardial Infarction. Circulation 2007, 115: 1012-1019. PMID: 17283258, DOI: 10.1161/circulationaha.106.658377.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionCardiac catheterizationHospital coronary artery bypass graft surgeryCoronary artery bypass graft surgeryArtery bypass graft surgeryLower ratesUS acute care hospitalsCardiac catheterization capabilitiesChart-abstracted dataBypass graft surgeryDay of admissionAcute care hospitalsComplex medical careQuality of careGraft surgeryCatheterization ratesClinical characteristicsCON regulationsHospital characteristicsMedicare patientsRetrospective analysisCatheterizationHealthcare costsFull cohort