2020
Mortality and readmission in non-ischemic compared with ischemic cardiomyopathies after implantable cardioverter-defibrillator implantation
Freeman J, Bjerre J, Parzynski C, Minges K, Ahmad T, Desai N, Enriquez A, Spatz E, Friedman D, Curtis J, Hlatky M, Higgins A. Mortality and readmission in non-ischemic compared with ischemic cardiomyopathies after implantable cardioverter-defibrillator implantation. European Heart Journal 2020, 41: ehaa946.0788. DOI: 10.1093/ehjci/ehaa946.0788.Peer-Reviewed Original ResearchNon-ischemic cardiomyopathyImplantable cardioverter defibrillator implantationPrimary prevention ICDsCardioverter-defibrillator implantationIschemic cardiomyopathyICM patientsNational Cardiovascular Data Registry ICD RegistryCox proportional hazards regression modelPrimary prevention ICD implantationLeft ventricular ejection fractionProportional hazards regression modelsOne-year mortalityHeart failure readmissionVentricular ejection fractionKaplan-Meier curvesHazards regression modelsRisk of mortalityMedian followCause readmissionICD implantationEjection fractionHeart failureHospital readmissionICD RegistryPatient subgroups
2018
Association of the US Department of Justice Investigation of Implantable Cardioverter-Defibrillators and Devices Not Meeting the Medicare National Coverage Determination, 2007-2015
Desai NR, Bourdillon PM, Parzynski CS, Brindis RG, Spatz ES, Masters C, Minges KE, Peterson P, Masoudi FA, Oetgen WJ, Buxton A, Zipes DP, Curtis JP. Association of the US Department of Justice Investigation of Implantable Cardioverter-Defibrillators and Devices Not Meeting the Medicare National Coverage Determination, 2007-2015. JAMA 2018, 320: 63-71. PMID: 29971398, PMCID: PMC6583049, DOI: 10.1001/jama.2018.8151.Peer-Reviewed Original ResearchConceptsPrimary prevention ICDsNon-Medicare beneficiariesAbsolute decreaseNational Cardiovascular Data Registry ICD RegistrySerial cross-sectional analysisStudy periodImplantable cardioverter defibrillatorRelative decreaseCross-sectional analysisProportion of devicesInitial ICDICD RegistryPrimary preventionCardioverter defibrillatorMAIN OUTCOMEMedicare beneficiariesUS hospitalsHospital groupHospitalICDMore rapid decreasesModest decreaseDepartmentMedicareUS Department
2016
Association Between a Prolonged PR Interval and Outcomes of Cardiac Resynchronization Therapy
Friedman DJ, Bao H, Spatz ES, Curtis JP, Daubert JP, Al-Khatib SM. Association Between a Prolonged PR Interval and Outcomes of Cardiac Resynchronization Therapy. Circulation 2016, 134: 1617-1628. PMID: 27760795, PMCID: PMC5418126, DOI: 10.1161/circulationaha.116.022913.Peer-Reviewed Original ResearchConceptsHeart failure hospitalizationFailure hospitalizationPR intervalImplantable cardioverter defibrillatorNational Cardiovascular Data Registry ICD RegistryCardiac resynchronization therapy candidatesIncident heart failure hospitalizationReal-world comparative effectivenessCRT-eligible patientsReceipt of CRTChronic kidney diseaseCardiac resynchronization therapyCRT-D patientsCoronary artery diseaseProlonged PR intervalComparative effectiveness analysisMore comorbiditiesArtery diseaseDiabetes mellitusICD recipientsICD RegistryResynchronization therapyAtrial arrhythmiasKidney diseaseCardioverter defibrillator
2015
Geriatric Conditions in Patients Undergoing Defibrillator Implantation for Prevention of Sudden Cardiac Death
Green AR, Leff B, Wang Y, Spatz ES, Masoudi FA, Peterson PN, Daugherty SL, Matlock DD. Geriatric Conditions in Patients Undergoing Defibrillator Implantation for Prevention of Sudden Cardiac Death. Circulation Cardiovascular Quality And Outcomes 2015, 9: 23-30. PMID: 26715650, PMCID: PMC4759659, DOI: 10.1161/circoutcomes.115.002053.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCohort StudiesDeath, Sudden, CardiacDefibrillators, ImplantableDementiaDiabetes MellitusFemaleFrail ElderlyHeart FailureHumansLiver CirrhosisMaleNeoplasmsPrimary PreventionPulmonary Disease, Chronic ObstructiveRegistriesRenal Insufficiency, ChronicStrokeUnited StatesConceptsPrimary prevention ICDsPrevalence of frailtyICD implantationHeart failureGeriatric conditionsChronic conditionsMedicare patientsNational Cardiovascular Data Registry ICD RegistryPrimary prevention ICD implantationChronic obstructive pulmonary diseaseOne-year mortalityObstructive pulmonary diseaseCommon chronic conditionsSudden cardiac deathImpact of multimorbidityClaims-based algorithmLogistic regression modelsFrail patientsDefibrillator implantationOverall cohortPatient characteristicsCardiac deathDiabetes mellitusICD RegistryPulmonary disease