2021
Longitudinal Outcomes Associated With Non-Evidence-Based Implantable Cardioverter-Defibrillators Among Medicare Beneficiaries (From the National Cardiovascular Data Registry)
Daimee UA, Aslam F, Parzynski CS, Desai NR, Curtis JP. Longitudinal Outcomes Associated With Non-Evidence-Based Implantable Cardioverter-Defibrillators Among Medicare Beneficiaries (From the National Cardiovascular Data Registry). The American Journal Of Cardiology 2021, 155: 64-71. PMID: 34315569, DOI: 10.1016/j.amjcard.2021.06.020.Peer-Reviewed Original ResearchConceptsPrimary prevention ICD implantationRisk of mortalityICD implantationHeart failureICD RegistryMortality riskNational Cardiovascular Data Registry ICD RegistryPivotal randomized clinical trialsHospital adverse eventsSevere heart failureRecent myocardial infarctionCause hospital readmissionRandomized clinical trialsSimilar mortality riskLongitudinal outcomesImplantable cardioverter defibrillatorGreater mortality riskCause hospitalizationCause mortalityCoronary revascularizationAdverse eventsHospital readmissionICD recipientsDevice implantationPrimary preventionPredicting In-Hospital Mortality in Patients Undergoing Percutaneous Coronary Intervention
Castro-Dominguez YS, Wang Y, Minges KE, McNamara RL, Spertus JA, Dehmer GJ, Messenger JC, Lavin K, Anderson C, Blankinship K, Mercado N, Clary JM, Osborne AD, Curtis JP, Cavender MA. Predicting In-Hospital Mortality in Patients Undergoing Percutaneous Coronary Intervention. Journal Of The American College Of Cardiology 2021, 78: 216-229. PMID: 33957239, DOI: 10.1016/j.jacc.2021.04.067.Peer-Reviewed Original ResearchConceptsPercutaneous coronary interventionHospital mortalityQuality improvement effortsCoronary interventionDevelopment cohortValidation cohortRisk-standardized mortality ratesHospital risk-standardized mortality ratesBedside risk scoreHigh-risk patientsIn-Hospital MortalityHospital mortality riskRisk of mortalityLevel of consciousnessProcedural urgencyCathPCI RegistryClinical presentationRisk cohortRisk stratificationCardiovascular instabilityCardiac arrestMortality riskRisk scoreClinical acuityClinical relevance
2020
Comparison of Mortality and Readmission in Non-Ischemic Versus Ischemic Cardiomyopathy After Implantable Cardioverter-Defibrillator Implantation
Higgins AY, Bjerre J, Parzynski CS, Minges KE, Ahmad T, Desai NR, Enriquez A, Spatz ES, Friedman DJ, Curtis JP, Hlatky MA, Freeman JV. Comparison of Mortality and Readmission in Non-Ischemic Versus Ischemic Cardiomyopathy After Implantable Cardioverter-Defibrillator Implantation. The American Journal Of Cardiology 2020, 133: 116-125. PMID: 32862971, DOI: 10.1016/j.amjcard.2020.07.035.Peer-Reviewed Original ResearchConceptsNon-ischemic cardiomyopathyImplantable cardioverter defibrillator implantationCardioverter-defibrillator implantationICM patientsIschemic cardiomyopathyNational Cardiovascular Data Registry ICD RegistryCox proportional hazards regression modelPrimary prevention ICD implantationLeft ventricular ejection fractionProportional hazards regression modelsPrimary prevention ICDsRetrospective cohort studyVentricular ejection fractionKaplan-Meier curvesHazards regression modelsRisk of mortalityComparison of mortalityMedian followCohort studyICD implantationEjection fractionHeart failureHospital readmissionICD RegistryPatient subgroupsPeriprocedural Risk and Survival Associated With Implantable Cardioverter-Defibrillator Placement in Older Patients With Advanced Heart Failure
Fudim M, Ali-Ahmed F, Parzynski CS, Ambrosy AP, Friedman DJ, Pokorney SD, Curtis JP, Fonarow GC, Masoudi FA, Hernandez AF, Al-Khatib SM. Periprocedural Risk and Survival Associated With Implantable Cardioverter-Defibrillator Placement in Older Patients With Advanced Heart Failure. JAMA Cardiology 2020, 5: 643-651. PMID: 32211811, PMCID: PMC7097837, DOI: 10.1001/jamacardio.2020.0391.Peer-Reviewed Original ResearchConceptsAdvanced heart failureAdvanced HF populationHeart transplant listingPeriprocedural complication rateHeart failureSudden cardiac deathComparator groupVentricular assist deviceInotrope useTransplant listingCardiac deathComplication rateHF populationPrimary preventionCardiac arrestNew York Heart Association class IV symptomsNational Cardiovascular Data Registry ICD RegistryAssist deviceLeft ventricular ejection fractionImplantable cardioverter-defibrillator placementAdvanced HF groupClass IV symptomsFirst-time ICDLeft ventricular assist deviceNYHA class II
2019
Modeling defibrillation benefit for survival among cardiac resynchronization therapy defibrillator recipients
Bilchick KC, Wang Y, Curtis JP, Cheng A, Dharmarajan K, Shadman R, Dardas TF, Anand I, Lund LH, Dahlström U, Sartipy U, Maggioni A, O'Connor C, Levy WC. Modeling defibrillation benefit for survival among cardiac resynchronization therapy defibrillator recipients. American Heart Journal 2019, 222: 93-104. PMID: 32032927, PMCID: PMC7814502, DOI: 10.1016/j.ahj.2019.12.017.Peer-Reviewed Original ResearchConceptsCRT-D patientsImplantable cardioverter defibrillatorSurvival benefitCRT-DsCardiac resynchronization therapy defibrillator recipientsCardiac resynchronization therapy candidatesSeattle Heart Failure ModelSeattle Proportional Risk ModelCox proportional hazards regressionNational Cardiovascular Data RegistryHeart Failure TrialHeart failure patientsProportional hazards regressionHeart failure modelProportional risk modelFailure patientsCRT candidatesHeart failureCRT pacemakerFailure TrialArrhythmic deathHazards regressionDefibrillator recipientsCRT deviceCardioverter defibrillator
2018
Incidence and Predictors of Perioperative Complications With Transvenous Lead Extractions
Sood N, Martin DT, Lampert R, Curtis JP, Parzynski C, Clancy J. Incidence and Predictors of Perioperative Complications With Transvenous Lead Extractions. Circulation Arrhythmia And Electrophysiology 2018, 11: e004768. PMID: 29453324, DOI: 10.1161/circep.116.004768.Peer-Reviewed Original ResearchConceptsTransvenous lead extractionMajor perioperative complicationsUrgent cardiac surgeryPerioperative complicationsLead extractionCardiac surgeryMajor complicationsClinical statusNational Cardiovascular Data Registry Implantable Cardioverter Defibrillator RegistryImplantable Cardioverter-Defibrillator RegistryRecent single-center studiesMultivariable logistic regression analysisHigh-voltage leadsReal-world incidenceSingle-center studyImplantable cardioverter-defibrillator leadsPatient's clinical statusHigh-volume centersRisk of complicationsLogistic regression analysisCardiovascular implantable electronic devicesCardioverter-defibrillator leadsReal-world outcomesImplantable electronic devicesFemale sex
2017
Long-term morbidity and mortality after implantable cardioverter-defibrillator implantation with procedural complication: A report from the National Cardiovascular Data Registry
Kipp R, Hsu JC, Freeman J, Curtis J, Bao H, Hoffmayer KS. Long-term morbidity and mortality after implantable cardioverter-defibrillator implantation with procedural complication: A report from the National Cardiovascular Data Registry. Heart Rhythm 2017, 15: 847-854. PMID: 28987459, DOI: 10.1016/j.hrthm.2017.09.043.Peer-Reviewed Original ResearchConceptsCause mortalityMedicare beneficiariesICD implantationProcedural complicationsHospital characteristicsMultivariable Cox proportional hazards regression analysisNational Cardiovascular Data Registry ICD RegistryCox proportional hazards regression analysisFirst-time ICD recipientsImplantable cardioverter defibrillator implantationNational Cardiovascular Data RegistryProportional hazards regression analysisKaplan-Meier survival analysisLong-term morbidityPredictors of mortalityCardioverter-defibrillator implantationOccurrence of complicationsRetrospective registry studyAcute procedural complicationsHazards regression analysisLong-term outcomesRisk of mortalityMortality 3 yearsIndex hospitalizationRegistry studyAddition of Blood Pressure and Weight Transmissions to Standard Remote Monitoring of Implantable Defibrillators and its Association with Mortality and Rehospitalization
Al-Chekakie MO, Bao H, Jones PW, Stein KM, Marzec L, Varosy PD, Masoudi FA, Curtis JP, Akar JG. Addition of Blood Pressure and Weight Transmissions to Standard Remote Monitoring of Implantable Defibrillators and its Association with Mortality and Rehospitalization. Circulation Cardiovascular Quality And Outcomes 2017, 10: e003087. PMID: 28506978, DOI: 10.1161/circoutcomes.116.003087.Peer-Reviewed Original ResearchConceptsBlood pressure dataImplantable defibrillatorsRemote patient monitoringTransmission of weightHeart failure hospitalizationImpaired ejection fractionCardiac resynchronization therapyCox regression modelRisk of mortalityLogistic regression modelsRoutine weightCause hospitalizationFailure hospitalizationBlood pressureCardiovascular hospitalizationEjection fractionResynchronization therapyRegression modelsDevice implantationService patientsHospital characteristicsIndependent associationImproved outcomesLandmark analysisSimilar riskSeattle Heart Failure and Proportional Risk Models Predict Benefit From Implantable Cardioverter-Defibrillators
Bilchick KC, Wang Y, Cheng A, Curtis JP, Dharmarajan K, Stukenborg GJ, Shadman R, Anand I, Lund LH, Dahlström U, Sartipy U, Maggioni A, Swedberg K, O’Conner C, Levy WC. Seattle Heart Failure and Proportional Risk Models Predict Benefit From Implantable Cardioverter-Defibrillators. Journal Of The American College Of Cardiology 2017, 69: 2606-2618. PMID: 28545633, PMCID: PMC5502749, DOI: 10.1016/j.jacc.2017.03.568.Peer-Reviewed Original ResearchConceptsSeattle Heart Failure ModelSeattle Proportional Risk ModelNational Cardiovascular Data RegistryPrimary prevention ICDsHeart failureSudden deathCause mortalitySurvival benefitMultivariable Cox proportional hazards regressionCox proportional hazards regressionProportional riskProportional hazards regressionRecent clinical trialsHeart failure modelProportional risk modelControl patientsOverall survivalVentricular arrhythmiasHazards regressionICD benefitClinical trialsCardioverter defibrillatorLarge cohortHigh riskData registry
2016
Outcomes 1 Year After Implantable Cardioverter–Defibrillator Lead Abandonment Versus Explantation for Unused or Malfunctioning Leads
Zeitler EP, Wang Y, Dharmarajan K, Anstrom KJ, Peterson ED, Daubert JP, Curtis JP, Al-Khatib SM. Outcomes 1 Year After Implantable Cardioverter–Defibrillator Lead Abandonment Versus Explantation for Unused or Malfunctioning Leads. Circulation Arrhythmia And Electrophysiology 2016, 9: e003953. PMID: 27406605, PMCID: PMC4973616, DOI: 10.1161/circep.116.003953.Peer-Reviewed Original ResearchConceptsNational Cardiovascular Data Registry ICD RegistryLead explantationUpper extremity thrombosisProcedure-related complicationsImplantable cardioverter-defibrillator leadsOutcomes 1 yearLong-term safetyCardioverter-defibrillator leadsHospital complicationsHospital deathUrgent surgeryPulmonary embolismICD RegistryHospital eventsPostprocedure complicationsMortality riskPatientsICD leadPropensity scoreComplicationsExplantationLead abandonmentMalfunctioning leadsHigh rateComparative acute
2015
Defibrillator implantations for primary prevention in the United States: Inappropriate care or inadequate documentation: Insights from the National Cardiovascular Data ICD Registry
Kaiser DW, Tsai V, Heidenreich PA, Goldstein MK, Wang Y, Curtis J, Turakhia MP, Registry C. Defibrillator implantations for primary prevention in the United States: Inappropriate care or inadequate documentation: Insights from the National Cardiovascular Data ICD Registry. Heart Rhythm 2015, 12: 2086-2093. PMID: 25982720, PMCID: PMC4770888, DOI: 10.1016/j.hrthm.2015.05.010.Peer-Reviewed Original ResearchConceptsMulticenter Unsustained Tachycardia TrialMulticenter Automatic Defibrillator Implantation TrialICD RegistryPrimary preventionICD implantationInclusion criteriaNational Cardiovascular Data Registry ICD RegistryMultivariate analysisImplantable cardioverter defibrillator implantationAtrioventricular conduction diseaseFirst-time ICDPrimary prevention ICDsPrior cardiac transplantationHeart Failure TrialPrimary prevention trialsProportion of patientsCardioverter-defibrillator implantationAppropriate use criteriaSudden cardiac deathCardiac transplantationDefibrillator implantationMADIT-IIPatient characteristicsYounger patientsCardiac deathA validated risk model for 1-year mortality after primary prevention implantable cardioverter defibrillator placement
Heidenreich PA, Tsai V, Curtis J, Wang Y, Turakhia MP, Masoudi FA, Varosy PD, Goldstein MK. A validated risk model for 1-year mortality after primary prevention implantable cardioverter defibrillator placement. American Heart Journal 2015, 170: 281-289.e2. PMID: 26299225, DOI: 10.1016/j.ahj.2014.12.013.Peer-Reviewed Original ResearchConceptsOne-year mortalityImplantable cardioverter defibrillatorRisk factorsHeart failurePrimary preventionMortality riskRisk scorePrimary prevention implantable cardioverter-defibrillator placementB-type natriuretic peptide valuesImplantable cardioverter-defibrillator placementCardiovascular Disease RegistryPrimary prevention populationNatriuretic peptide valuesChronic lung diseaseSystolic blood pressureSimilar risk factorsBlood urea nitrogenPg/mLLogistic regression modelsPrevention populationICD therapyICD implantationBlood pressureICD RegistryICD placement
2014
Temporal Trends in Patient Characteristics and Outcomes Among Medicare Beneficiaries Undergoing Primary Prevention Implantable Cardioverter-Defibrillator Placement in the United States, 2006–2010
Borne RT, Peterson PN, Greenlee R, Heidenreich PA, Wang Y, Curtis JP, Tzou WS, Varosy PD, Kremers MS, Masoudi FA. Temporal Trends in Patient Characteristics and Outcomes Among Medicare Beneficiaries Undergoing Primary Prevention Implantable Cardioverter-Defibrillator Placement in the United States, 2006–2010. Circulation 2014, 130: 845-853. PMID: 25095884, DOI: 10.1161/circulationaha.114.008653.Peer-Reviewed Original ResearchConceptsPrimary prevention ICD implantationDevice-related complicationsPatient characteristicsICD implantationICD RegistryNational Cardiovascular Data Registry ICD RegistryPrimary prevention implantable cardioverter-defibrillator placementConcomitant cardiac resynchronization therapyLeft ventricular ejection fractionImplantable cardioverter-defibrillator placementMultivariable hierarchical logistic regressionCardiac resynchronization therapy devicesCardiac resynchronization therapyVentricular ejection fractionResynchronization therapy devicesCommunity practice settingsSingle-lead deviceHierarchical logistic regressionClinical characteristicsOlder patientsEjection fractionResynchronization therapyPrimary preventionPatient populationHospital characteristicsTransfer Rates From Nonprocedure Hospitals After Initial Admission and Outcomes Among Elderly Patients With Acute Myocardial Infarction
Barreto-Filho JA, Wang Y, Rathore SS, Spatz ES, Ross JS, Curtis JP, Nallamothu BK, Normand SL, Krumholz HM. Transfer Rates From Nonprocedure Hospitals After Initial Admission and Outcomes Among Elderly Patients With Acute Myocardial Infarction. JAMA Internal Medicine 2014, 174: 213-222. PMID: 24296747, DOI: 10.1001/jamainternmed.2013.11944.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionCoronary artery bypass graft surgeryArtery bypass graft surgeryRisk-standardized mortality ratesBypass graft surgeryPercutaneous coronary interventionLength of stayMyocardial infarctionElderly patientsGraft surgeryRevascularization ratesCoronary interventionMortality rateLower risk-standardized mortality ratesRate of catheterizationHospital transfer ratesInvasive cardiac proceduresTransfer of patientsRisk-standardized mortalityHospital outcomesInitial admissionMedian lengthService patientsCardiac proceduresHospital differences
2013
Patient, Physician, and Procedural Factors Influencing the Use of Defibrillation Testing during Initial Implantable Cardioverter Defibrillator Insertion: Findings from the NCDR®
RUSSO AM, WANG Y, AL‐KHATIB S, CURTIS JP, LAMPERT R. Patient, Physician, and Procedural Factors Influencing the Use of Defibrillation Testing during Initial Implantable Cardioverter Defibrillator Insertion: Findings from the NCDR®. Pacing And Clinical Electrophysiology 2013, 36: 1522-1531. PMID: 23981009, DOI: 10.1111/pace.12248.Peer-Reviewed Original ResearchConceptsHospital adverse eventsDFT testingAdverse eventsImplantable cardioverter-defibrillator insertionLeft ventricular ejection fractionCardiac resynchronization therapy devicesPrimary prevention indicationVentricular ejection fractionResynchronization therapy devicesProspective randomized dataImplantable cardioverter defibrillator (ICD) technologyDefibrillation threshold testingPatterns of practiceMore comorbiditiesPrevention indicationDefibrillator insertionEjection fractionHeart failureAtrial arrhythmiasDefibrillation testingIndependent associationProcedural characteristicsTeaching hospitalDefibrillator technologyImplant procedureThe National ICD Registry Report: Version 2.1 including leads and pediatrics for years 2010 and 2011
Kremers MS, Hammill SC, Berul CI, Koutras C, Curtis JS, Wang Y, Beachy J, Meisnere L, Conyers D, Reynolds MR, Heidenreich PA, Al-Khatib SM, Pina IL, Blake K, Walsh M, Wilkoff BL, Shalaby A, Masoudi FA, Rumsfeld J. The National ICD Registry Report: Version 2.1 including leads and pediatrics for years 2010 and 2011. Heart Rhythm 2013, 10: e59-e65. PMID: 23403056, DOI: 10.1016/j.hrthm.2013.01.035.Peer-Reviewed Original ResearchAdolescentAgedArrhythmias, CardiacChildChild, PreschoolDefibrillators, ImplantableElectrodes, ImplantedEquipment FailureEquipment SafetyFemaleFollow-Up StudiesHumansMaleMiddle AgedMonitoring, PhysiologicRegistriesRetrospective StudiesRisk AssessmentSurvival RateTime FactorsTreatment OutcomeUnited States
2010
Acute Lead Dislodgements and In-Hospital Mortality in Patients Enrolled in the National Cardiovascular Data Registry Implantable Cardioverter Defibrillator Registry
Cheng A, Wang Y, Curtis JP, Varosy PD. Acute Lead Dislodgements and In-Hospital Mortality in Patients Enrolled in the National Cardiovascular Data Registry Implantable Cardioverter Defibrillator Registry. Journal Of The American College Of Cardiology 2010, 56: 1651-1656. PMID: 21050975, DOI: 10.1016/j.jacc.2010.06.037.Peer-Reviewed Original ResearchConceptsNational Cardiovascular Data Registry Implantable Cardioverter Defibrillator RegistryImplantable Cardioverter-Defibrillator RegistryLead dislodgementAcute dislodgementHospital deathAdverse eventsNew York Heart Association functional class IV heart failureAtrial fibrillation/flutterCardiac resynchronization therapy-defibrillator deviceClass IV heart failureCommon adverse eventsIn-Hospital MortalityLow ejection fractionChronic lung diseaseMore comorbiditiesCardiac tamponadeMultivariate adjustmentEjection fractionHeart failureNonischemic cardiomyopathyAtrial fibrillationCerebrovascular diseaseCardiac arrestLung diseasePotential confoundersThe Relation Between Hospital Procedure Volume and Complications of Cardioverter-Defibrillator Implantation From the Implantable Cardioverter-Defibrillator Registry
Freeman JV, Wang Y, Curtis JP, Heidenreich PA, Hlatky MA. The Relation Between Hospital Procedure Volume and Complications of Cardioverter-Defibrillator Implantation From the Implantable Cardioverter-Defibrillator Registry. Journal Of The American College Of Cardiology 2010, 56: 1133-1139. PMID: 20863954, DOI: 10.1016/j.jacc.2010.07.007.Peer-Reviewed Original ResearchConceptsAdverse eventsProcedure volumeImplantable Cardioverter-Defibrillator RegistryHospital adverse outcomesInitial ICD implantationCardioverter-defibrillator implantationHigh-volume hospitalsLow-volume hospitalsPatients' clinical characteristicsBetter clinical outcomesHospital procedure volumeVolume-outcome relationshipNCDR ICD RegistryClinical characteristicsICD implantationICD RegistryProcedural complicationsClinical outcomesAdverse outcomesHospital characteristicsBiventricular ICDsImplant volumeHospitalRepresentative populationICDDifferences in Patient Survival After Acute Myocardial Infarction by Hospital Capability of Performing Percutaneous Coronary Intervention: Implications for Regionalization
Chen J, Krumholz HM, Wang Y, Curtis JP, Rathore SS, Ross JS, Normand SL, Schreiner GC, Mulvey G, Nallamothu BK. Differences in Patient Survival After Acute Myocardial Infarction by Hospital Capability of Performing Percutaneous Coronary Intervention: Implications for Regionalization. JAMA Internal Medicine 2010, 170: 433-439. PMID: 20212179, PMCID: PMC2900156, DOI: 10.1001/archinternmed.2009.538.Peer-Reviewed Original ResearchConceptsRisk-standardized mortality ratesNon-PCI hospitalsPercutaneous coronary interventionAcute myocardial infarctionHospital referral regionsPCI hospitalsHealth care regionCoronary interventionAMI patientsMyocardial infarctionCare regionLower risk-standardized mortality ratesSame hospital referral regionService beneficiaries 65 yearsBeneficiaries 65 yearsMagnitude of benefitPatient survivalAMI careReferral regionsOutcome differencesMedicare feeMortality rateHospitalHospital capabilitiesInfarction
2005
Anemia and Outcomes in Patients With Heart Failure: A Study From the National Heart Care Project
Kosiborod M, Curtis JP, Wang Y, Smith GL, Masoudi FA, Foody JM, Havranek EP, Krumholz HM. Anemia and Outcomes in Patients With Heart Failure: A Study From the National Heart Care Project. JAMA Internal Medicine 2005, 165: 2237-2244. PMID: 16246989, DOI: 10.1001/archinte.165.19.2237.Peer-Reviewed Original ResearchConceptsHeart failureLower hematocrit levelsIndependent predictorsHematocrit levelsComorbid illnessesHigh riskCare ProjectMultivariable logistic regression analysisPatients 65 yearsPrincipal discharge diagnosisAcute care hospitalsLogistic regression analysisLow hematocrit valuesCause mortalityHF patientsMultiple comorbiditiesMultivariable adjustmentOlder patientsCare hospitalClinical factorsHospital readmissionComorbid conditionsDischarge diagnosisSevere anemiaAdverse outcomes