2023
Reclassification of moderate aortic stenosis based on data-driven phenotyping of hemodynamic progression
Cho I, Kim W, Kim S, Ko K, Seong Y, Kim D, Seo J, Shim C, Ha J, Mori M, Gupta A, You S, Hong G, Krumholz H. Reclassification of moderate aortic stenosis based on data-driven phenotyping of hemodynamic progression. Scientific Reports 2023, 13: 6694. PMID: 37095171, PMCID: PMC10125992, DOI: 10.1038/s41598-023-33683-1.Peer-Reviewed Original ResearchMeSH KeywordsAortic ValveAortic Valve StenosisEchocardiographyHeart Valve ProsthesisHeart Valve Prosthesis ImplantationHemodynamicsHumansRetrospective StudiesSeverity of Illness IndexTreatment OutcomeConceptsRapid progression groupModerate aortic stenosisAortic valve replacementSlow progression groupAortic stenosisProgression groupHemodynamic progressionRapid progressionMore rapid progressionLatent class trajectory modelingTransthoracic echocardiography studyBetween-group differencesData-driven phenotypingPressure gradient measurementAVR ratesModerate ASCause mortalityValve replacementEchocardiography studyAtrial fibrillationTTE studiesEchocardiographic dataRisk factorsPredictive valuePatients
2020
Associations Between the Severity of Influenza Seasons and Mortality and Readmission Risks After Elective Surgical Aortic Valve Replacement and Coronary Artery Bypass Graft Surgery in Older Adults
Mori M, Wang Y, Mahajan S, Geirsson A, Krumholz HM. Associations Between the Severity of Influenza Seasons and Mortality and Readmission Risks After Elective Surgical Aortic Valve Replacement and Coronary Artery Bypass Graft Surgery in Older Adults. JAMA Network Open 2020, 3: e2031078. PMID: 33355673, PMCID: PMC7758803, DOI: 10.1001/jamanetworkopen.2020.31078.Peer-Reviewed Original ResearchConceptsSurgical aortic valve replacementElective surgical aortic valve replacementAortic valve replacementValve replacementReadmission riskCoronary artery bypass graft surgeryArtery bypass graft surgeryOlder adultsBypass graft surgeryCoronary artery bypassCross-sectional studyArtery bypassGraft surgeryInfluenza seasonMedicaid ServicesMortalitySeverityAdultsRiskAssociationSurgeryBypass
2015
Hospitalizations for Endocarditis in the United States
Bikdeli B, Wang Y, Krumholz HM. Hospitalizations for Endocarditis in the United States. Journal Of The American College Of Cardiology 2015, 66: 1847. PMID: 26483116, DOI: 10.1016/j.jacc.2015.06.1353.Peer-Reviewed Original ResearchEndocarditisHeart Valve DiseasesHeart Valve Prosthesis ImplantationHumansRisk AssessmentStaphylococcal InfectionsStreptococcal Infections
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 ResearchMeSH KeywordsAgedAortic ValveFemaleHeart Valve Prosthesis ImplantationHospitalizationHumansMaleMedicarePostoperative ComplicationsSurvivorsTime FactorsUnited StatesConceptsAortic 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
2013
Trends in Aortic Valve Replacement for Elderly Patients in the United States, 1999-2011
Barreto-Filho JA, Wang Y, Dodson JA, Desai MM, Sugeng L, Geirsson A, Krumholz HM. Trends in Aortic Valve Replacement for Elderly Patients in the United States, 1999-2011. JAMA 2013, 310: 2078-2084. PMID: 24240935, PMCID: PMC4089974, DOI: 10.1001/jama.2013.282437.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedAged, 80 and overAortic ValveBicuspid Aortic Valve DiseaseBlack PeopleCohort StudiesCoronary Artery BypassCross-Sectional StudiesFee-for-Service PlansFemaleHeart Defects, CongenitalHeart Valve DiseasesHeart Valve ProsthesisHeart Valve Prosthesis ImplantationHumansLength of StayMaleMedicarePatient ReadmissionTreatment OutcomeUnited StatesConceptsSurgical aortic valve replacementAortic valve replacementValve replacementProcedure ratesElderly patientsCoronary artery bypass graft surgeryArtery bypass graft surgeryCross-sectional cohort studyPatients 85 yearsBypass graft surgeryHigh mortality rateCause readmissionCABG surgeryGraft surgeryOlder patientsCohort studyReadmission ratesTranscatheter optionsBlack patientsTranscatheter treatmentMechanical prosthesesThirty-dayContemporary outcomesMAIN OUTCOMEMedicare fee
2012
Outcomes for Mitral Valve Surgery Among Medicare Fee-for-Service Beneficiaries, 1999 to 2008
Dodson JA, Wang Y, Desai MM, Barreto-Filho JA, Sugeng L, Hashim SW, Krumholz HM. Outcomes for Mitral Valve Surgery Among Medicare Fee-for-Service Beneficiaries, 1999 to 2008. Circulation Cardiovascular Quality And Outcomes 2012, 5: 298-307. PMID: 22576847, PMCID: PMC3400109, DOI: 10.1161/circoutcomes.112.966077.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overChi-Square DistributionFee-for-Service PlansFemaleHealthcare DisparitiesHeart Valve DiseasesHeart Valve Prosthesis ImplantationHospital MortalityHospitalizationHumansLinear ModelsMaleMedicareMitral ValveOdds RatioPatient ReadmissionQuality ImprovementRisk AssessmentRisk FactorsTime FactorsTreatment OutcomeUnited StatesConceptsMitral valve surgeryValve surgeryMitral valve repairFFS patientsHospitalization ratesValve repairMedicare feeMedicare Standard Analytic FilesMedicare FFS patientsRisk-standardized ratesProportion of patientsStandard Analytic FilesVital Status filesNational surveillance dataMedicare administrative dataSubstantial morbidityMortality outcomesService patientsAnalytic FilesMortality riskMortality rateSurgeryPatientsDenominator fileReadmission