2005
Volume-based referral for cardiovascular procedures in the United States: a cross-sectional regression analysis
Epstein AJ, Rathore SS, Krumholz HM, Volpp K. Volume-based referral for cardiovascular procedures in the United States: a cross-sectional regression analysis. BMC Health Services Research 2005, 5: 42. PMID: 15935099, PMCID: PMC1175086, DOI: 10.1186/1472-6963-5-42.Peer-Reviewed Original ResearchConceptsPercutaneous coronary interventionHigh-volume hospitalsVolume hospitalsLow-volume hospitalsNumber of patientsHospital mortalityCoronary artery bypass graft surgeryLeapfrog GroupArtery bypass graft surgeryNational hospital discharge databaseProcedure-associated mortalityVolume-based referralBypass graft surgeryHospital discharge databaseNumber of deathsCABG patientsHospital CABGGraft surgeryPCI patientsCoronary interventionDischarge databaseRetrospective analysisCABGCardiovascular proceduresPatients
2004
Hospital percutaneous coronary intervention volume and patient mortality, 1998 to 2000 Does the evidence support current procedure volume minimums?
Epstein AJ, Rathore SS, Volpp KG, Krumholz HM. Hospital percutaneous coronary intervention volume and patient mortality, 1998 to 2000 Does the evidence support current procedure volume minimums? Journal Of The American College Of Cardiology 2004, 43: 1755-1762. PMID: 15145095, PMCID: PMC2803067, DOI: 10.1016/j.jacc.2003.09.070.Peer-Reviewed Original ResearchConceptsHigh-volume hospitalsMedium-volume hospitalsLow-volume hospitalsHospital mortalityHigh PCI volume hospitalsPercutaneous coronary intervention volumeACC/AHA guidelinesProcedure-associated mortalityHospital mortality rateCurrent American CollegeHospital discharge databaseAnnual PCI volumesVolume hospitalsAHA guidelinesPatient characteristicsPCI volumePatient mortalityDischarge databaseIntervention volumeRetrospective analysisAmerican CollegeComparable riskMortality ratePatientsHospitalHospital Coronary Artery Bypass Graft Surgery Volume and Patient Mortality, 1998–2000
Rathore SS, Epstein AJ, Volpp KG, Krumholz HM. Hospital Coronary Artery Bypass Graft Surgery Volume and Patient Mortality, 1998–2000. Annals Of Surgery 2004, 239: 110-117. PMID: 14685108, PMCID: PMC1356200, DOI: 10.1097/01.sla.0000103066.22732.b8.Peer-Reviewed Original ResearchMeSH KeywordsAge DistributionAgedAnalysis of VarianceCause of DeathCoronary Artery BypassCoronary DiseaseFemaleHospital MortalityHumansIncidenceMaleMiddle AgedOdds RatioOutcome Assessment, Health CareProbabilityRegistriesRetrospective StudiesRisk AssessmentSampling StudiesSex DistributionTotal Quality ManagementUnited StatesConceptsLow-volume hospitalsMedium-volume hospitalsHigh-volume hospitalsSurgery volumeMortality riskMortality rateNational Inpatient Sample databaseRisk-standardized mortality ratesHospital CABG volumeHospital mortality rateRisk of mortalityLower mortality riskHealth care purchasersHospital mortalityMultivariable adjustmentVolume hospitalsBorderline significanceCABG volumeRetrospective analysisVolume groupMortality differencesPatientsHospitalLeapfrog GroupReliable marker