2022
Longitudinal Outcomes of Subcutaneous or Transvenous Implantable Cardioverter-Defibrillators in Older Patients
Friedman DJ, Qin L, Parzynski C, Heist EK, Russo AM, Ranasinghe I, Zeitler EP, Minges KE, Akar JG, Freeman JV, Curtis JP, Al-Khatib SM. Longitudinal Outcomes of Subcutaneous or Transvenous Implantable Cardioverter-Defibrillators in Older Patients. Journal Of The American College Of Cardiology 2022, 79: 1050-1059. PMID: 35300816, DOI: 10.1016/j.jacc.2021.12.033.Peer-Reviewed Original ResearchConceptsOlder patientsCause readmissionS-ICDNational Cardiovascular Data Registry ICD RegistryDevice removalTransvenous implantable cardioverter defibrillatorTV-ICD patientsRisk of deathS-ICD patientsService Medicare beneficiariesAnderson-Gill modelsImplantable cardioverter defibrillatorRepresentative national cohortCompeting-risks modelTV-ICDCardiovascular readmissionCause mortalityICD implantationYounger patientsICD RegistryNonfatal outcomesTransvenous ICDAtrial fibrillationNational cohortCardioverter defibrillator
2018
Ventricular Fibrillation Conversion Testing After Implantation of a Subcutaneous Implantable Cardioverter Defibrillator
Friedman DJ, Parzynski CS, Heist EK, Russo AM, Akar JG, Freeman JV, Curtis JP, Al-Khatib SM. Ventricular Fibrillation Conversion Testing After Implantation of a Subcutaneous Implantable Cardioverter Defibrillator. Circulation 2018, 137: 2463-2477. PMID: 29463509, PMCID: PMC5988932, DOI: 10.1161/circulationaha.117.032167.Peer-Reviewed Original ResearchConceptsImplantable cardioverter defibrillatorS-ICD implantationLogistic regression analysisInhospital complicationsPatient characteristicsCT testingS-ICDsCardioverter defibrillatorConversion testingPrior implantable cardioverter defibrillatorHigher body mass indexMultivariable logistic regression analysisLarger body surface areaSubcutaneous implantable cardioverter defibrillatorTransvenous implantable cardioverter defibrillatorInhospital adverse eventsLow ejection fractionAvailable patient characteristicsBody mass indexBody surface areaFirst-time recipientsMaximum device outputRegression analysisPredictors of useInsufficient safety margin
2012
Effectiveness of Implantable Cardioverter Defibrillators and Cardiac Resynchronization Therapy in Heart Failure
Freeman JV, Masoudi FA. Effectiveness of Implantable Cardioverter Defibrillators and Cardiac Resynchronization Therapy in Heart Failure. Heart Failure Clinics 2012, 9: 59-77. PMID: 23168318, DOI: 10.1016/j.hfc.2012.09.006.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedCardiac Resynchronization TherapyComparative Effectiveness ResearchDefibrillators, ImplantableDisease ManagementFemaleHeart FailureHumansMaleMeta-Analysis as TopicMiddle AgedObservationOutcome and Process Assessment, Health CarePatient SelectionPractice Guidelines as TopicRandomized Controlled Trials as TopicSecondary PreventionSeverity of Illness IndexSex FactorsSurvival RateConceptsCardiac resynchronization therapyTrial dataResynchronization therapyQRS morphologyNYHA class IV patientsCardiac devicesBenefit of ICDSingle-chamber ICDClass IV patientsHigh-volume hospitalsOptimal medical managementEffective treatment modalityPrior ventricular arrhythmiasProlonged QRS complexRecent trial dataRecent trial resultsImplantable cardioverter defibrillatorQuality of lifeHF hospitalizationSymptomatic HFHF symptomsICD therapySevere comorbiditiesIV patientsMortality benefit