2020
Variation in Risk-standardized Rates and Causes of Unplanned Hospital Visits Within 7 Days of Hospital Outpatient Surgery
Desai MM, Zogg CK, Ranasinghe I, Parzynski CS, Lin Z, Gorbaty M, Merrill A, Krumholz HM, Drye EE. Variation in Risk-standardized Rates and Causes of Unplanned Hospital Visits Within 7 Days of Hospital Outpatient Surgery. Annals Of Surgery 2020, 276: e714-e720. PMID: 33214469, DOI: 10.1097/sla.0000000000004627.Peer-Reviewed Original ResearchConceptsUnplanned hospital visitsHospital outpatient surgeryHospital outpatient departmentsHospital visitsOutpatient surgeryShort-term safety outcomesFacility-level variationHierarchical logistic regression modelingPost-surgical visitSame-day surgeryHalf of proceduresLogistic regression modelingUrinary retentionStudy cohortUnplanned visitsClinical comorbiditiesOutpatient departmentOutpatient settingPreventable conditionPreventable reasonsBACKGROUND DATASafety outcomesMedicare feeSurgeryService beneficiaries
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
Exposure to Low-Dose Ionizing Radiation from Medical Imaging Procedures
Fazel R, Krumholz HM, Wang Y, Ross JS, Chen J, Ting HH, Shah ND, Nasir K, Einstein AJ, Nallamothu BK. Exposure to Low-Dose Ionizing Radiation from Medical Imaging Procedures. New England Journal Of Medicine 2009, 361: 849-857. PMID: 19710483, PMCID: PMC3707303, DOI: 10.1056/nejmoa0901249.Peer-Reviewed Original ResearchConceptsCumulative effective dosesCumulative effective doseEffective dosesEffective doseMean cumulative effective doseImaging proceduresLow-dose ionizing radiationPopulation-based ratesMedian effective doseOutpatient settingGeneral populationHigh dosesUtilization dataDosesEnrolleesStudy periodRadiation exposureNuclear imagingDoseAnnual effective dosesMedical imaging proceduresUnited StatesExposureHealth care marketYears
2006
Impact of Medication Therapy Discontinuation on Mortality After Myocardial Infarction
Ho PM, Spertus JA, Masoudi FA, Reid KJ, Peterson ED, Magid DJ, Krumholz HM, Rumsfeld JS. Impact of Medication Therapy Discontinuation on Mortality After Myocardial Infarction. JAMA Internal Medicine 2006, 166: 1842-1847. PMID: 17000940, DOI: 10.1001/archinte.166.17.1842.Peer-Reviewed Original ResearchConceptsTherapy discontinuationMyocardial infarctionEvidence-based medicationsMulticenter prospective cohortUse of aspirinMultivariable survival analysisTransitions of careDiscontinuation of useProspective registryMortality benefitProspective cohortMultivariable analysisOutpatient settingMI hospitalizationDiscontinuationMortality riskMedicationsPatientsSurvival analysisHigh mortalityMortalityTreatment factorsMonthsInfarctionAspirin
2005
Validity of Using an Electronic Medical Record for Assessing Quality of Care in an Outpatient Setting
Benin AL, Vitkauskas G, Thornquist E, Shapiro ED, Concato J, Aslan M, Krumholz HM. Validity of Using an Electronic Medical Record for Assessing Quality of Care in an Outpatient Setting. Medical Care 2005, 43: 691-698. PMID: 15970784, DOI: 10.1097/01.mlr.0000167185.26058.8e.Peer-Reviewed Original ResearchConceptsElectronic medical recordsManagement of pharyngitisMedical recordsHealth Plan Employer DataDiagnostic testsEpisode of pharyngitisOutpatient electronic medical recordsProportion of episodesDiagnosis of pharyngitisOutpatient settingTotal episodesPharyngitisEmployer DataElectronic databasesDiagnostic testingClinical encountersMeasures of qualityEpisodesComplete evaluationCareAssessing QualityPediatricsYearsProportionDiagnosis
2003
Improving diagnostic testing and reducing overuse of antibiotics for children with pharyngitis: a useful role for the electronic medical record
BENIN AL, VITKAUSKAS G, THORNQUIST E, SHIFFMAN RN, CONCATO J, KRUMHOLZ HM, SHAPIRO ED. Improving diagnostic testing and reducing overuse of antibiotics for children with pharyngitis: a useful role for the electronic medical record. The Pediatric Infectious Disease Journal 2003, 22: 1043-1047. PMID: 14688562, DOI: 10.1097/01.inf.0000100577.76542.af.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAnti-Bacterial AgentsChildChild, PreschoolDiagnostic Tests, RoutineDrug Resistance, MultipleDrug UtilizationElectronic Data ProcessingFemaleHumansLogistic ModelsMalePharyngitisProbabilityRegistriesRetrospective StudiesRisk AssessmentSensitivity and SpecificitySeverity of Illness IndexStatistics, NonparametricConceptsElectronic medical recordsOveruse of antibioticsDiagnostic testingMedical recordsEpisode of pharyngitisPediatric outpatient settingProportion of episodesOutpatient settingAntibiotic useScarlet feverPharyngitisChildren 3Diagnostic testsPatientsAntibioticsAppropriate useCliniciansWeeksEpisodesOveruseUseful rolePrescribingFeverClinicTestingEfficacy and Safety of Low-Carbohydrate Diets: A Systematic Review
Bravata DM, Sanders L, Huang J, Krumholz HM, Olkin I, Gardner CD, Bravata DM. Efficacy and Safety of Low-Carbohydrate Diets: A Systematic Review. JAMA 2003, 289: 1837-1850. PMID: 12684364, DOI: 10.1001/jama.289.14.1837.Peer-Reviewed Original ResearchConceptsLow-carbohydrate dietSerum insulin levelsDiet durationSerum lipidsBlood pressureInsulin levelsSerum glucoseWeight lossAge 50 yearsParticipant weight lossLonger diet durationEnglish-language studiesSignificant adverse effectsObese patientsDietary interventionMean ageOutpatient settingCaloric intakeInclusion criteriaTotal caloriesAbstraction formCalorie intakeInsufficient evidenceSystematic reviewOutpatient recipients