2021
Electrical storm in patients with left ventricular assist devices: Risk factors, incidence, and impact on survival
Rehorn MR, Black-Maier E, Loungani R, Sen S, Sun AY, Friedman DJ, Koontz JI, Schroder JN, Milano CA, Khouri MG, Katz JN, Patel CB, Pokorney SD, Daubert JP, Piccini JP. Electrical storm in patients with left ventricular assist devices: Risk factors, incidence, and impact on survival. Heart Rhythm 2021, 18: 1263-1271. PMID: 33839327, DOI: 10.1016/j.hrthm.2021.03.047.Peer-Reviewed Original ResearchConceptsHistory of VAsPerioperative mechanical circulatory supportAntiarrhythmic drug useMechanical circulatory supportVentricular arrhythmiasElectrical stormRisk factorsLVAD implantationCirculatory supportDrug useVentricular assist device implantationLeft ventricular assist deviceTime of LVADAssist device implantationObservational retrospective studyPopulation of patientsQuaternary care centerVentricular tachycardia ablationCox proportional hazardsDuke University HospitalVentricular assist deviceSympatholytic therapyMedical therapyCatheter ablationDevice implantation
2020
Reducing ECG Artifact From Left Ventricular Assist Device Electromagnetic Interference
Loring Z, Sen S, Black-Maier E, Atwater BD, Russell SD, DeVore AD, Piccini JP. Reducing ECG Artifact From Left Ventricular Assist Device Electromagnetic Interference. Journal Of The American Heart Association 2020, 9: e017563. PMID: 32787630, PMCID: PMC7660795, DOI: 10.1161/jaha.120.017563.Peer-Reviewed Original ResearchConceptsHeartMate 3 LVADElectromagnetic interferenceRotational speedBandstop filterLow-pass filterHigh-frequency signal componentsImpeller rotationFrequency peakFast Fourier transformWaveform dataSignal componentsLeft ventricular assist deviceFourier transformFilterECG artifactsSignal peaksNoise artifactsDevicesSpeedVentricular assist devicePotential solutionsAssist deviceAdditional peaksInterferenceFrequency
2019
The application of appropriate use criteria for transthoracic echocardiography in a cardiac intensive care unit
Salik JR, Sen S, Picard MH, Weiner RB, Dudzinski DM. The application of appropriate use criteria for transthoracic echocardiography in a cardiac intensive care unit. Echocardiography 2019, 36: 631-638. PMID: 30969477, DOI: 10.1111/echo.14314.Peer-Reviewed Original ResearchConceptsCardiac intensive care unitCurrent appropriate use criteriaAppropriate use criteriaIntensive care unitCare unitModern cardiac intensive care unitUse criteriaQuaternary care academic medical centerUnique clinical environmentAcademic medical centerTransthoracic echocardiographyCardiac arrestUnknown etiologyMedical CenterThird investigatorCardiac structureHealthcare resourcesAUC classificationClinical casesInitial evaluationTTEFurther studiesClinical environmentInvestigatorsIndications
2015
Regional-Level Correlations in Inappropriate Imaging Rates for Prostate and Breast Cancers: Potential Implications for the Choosing Wisely Campaign
Makarov DV, Soulos PR, Gold HT, Yu JB, Sen S, Ross JS, Gross CP. Regional-Level Correlations in Inappropriate Imaging Rates for Prostate and Breast Cancers: Potential Implications for the Choosing Wisely Campaign. JAMA Oncology 2015, 1: 185-194. PMID: 26181021, PMCID: PMC4707944, DOI: 10.1001/jamaoncol.2015.37.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBreast NeoplasmsCatchment Area, HealthChi-Square DistributionDiagnostic ImagingFemaleGuideline AdherenceHumansLogistic ModelsMaleMedicareMultivariate AnalysisPractice Guidelines as TopicPractice Patterns, Physicians'Predictive Value of TestsProstatic NeoplasmsResidence CharacteristicsRetrospective StudiesRisk FactorsSEER ProgramUnited StatesUnnecessary ProceduresConceptsLow-risk prostate cancerProstate cancerBreast cancerProstate cancer imagingFourth quartileLow-risk breast cancerBreast cancer imagingLow-risk prostateEnd Results-MedicareRetrospective cohort studyMultivariable logistic regressionChoosing Wisely campaignPatient-level analysisAppropriateness of careHospital referral regionsCancer imagingQuality of careInappropriate imagingCohort studyWisely campaignHealth care spendingLowest quartileOdds ratioPatient levelHRR level
2014
Examining the Cost-Effectiveness of Radiation Therapy Among Older Women With Favorable-Risk Breast Cancer
Sen S, Wang SY, Soulos PR, Frick KD, Long JB, Roberts KB, Yu JB, Evans SB, Chagpar AB, Gross CP. Examining the Cost-Effectiveness of Radiation Therapy Among Older Women With Favorable-Risk Breast Cancer. Journal Of The National Cancer Institute 2014, 106: dju008. PMID: 24598714, PMCID: PMC3982782, DOI: 10.1093/jnci/dju008.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBrachytherapyBreast NeoplasmsComorbidityCost-Benefit AnalysisFemaleHealth ExpendituresHumansLife ExpectancyMedicareNeoplasm Recurrence, LocalNeoplasm StagingQuality of LifeQuality-Adjusted Life YearsRadiotherapy, Intensity-ModulatedRisk AssessmentRisk FactorsSampling StudiesSEER ProgramUnited StatesConceptsExternal beam radiation therapyIncremental cost-effectiveness ratioQuality-adjusted life yearsBreast cancerOlder womenRadiation therapyEnd Results-Medicare databaseRisk breast cancerBeam radiation therapyCost-effectiveness ratioNewer radiation therapy modalitiesQuality of lifeRadiation therapy modalitiesLocal recurrenceTrial criteriaRT modalityTherapy modalitiesLife yearsCancerIncremental costTherapyWomenBaseline stateNew modality
2013
For-profit hospital ownership status and use of brachytherapy after breast-conserving surgery
Sen S, Soulos PR, Herrin J, Roberts KB, Yu JB, Lesnikoski BA, Ross JS, Krumholz HM, Gross CP. For-profit hospital ownership status and use of brachytherapy after breast-conserving surgery. Surgery 2013, 155: 776-788. PMID: 24787104, PMCID: PMC4008843, DOI: 10.1016/j.surg.2013.12.009.Peer-Reviewed Original ResearchConceptsHospital ownership statusBreast-conserving operationsBreast-conserving surgeryUse of brachytherapyRadiation therapyOperative careBreast cancerMedicare beneficiariesOverall useReceipt of brachytherapyAdjuvant radiation therapyInvasive breast cancerFemale Medicare beneficiariesGreater overall useYears of ageShort life expectancyRetrospective studyRT modalityProfit hospitalsExpensive modalityOlder womenBrachytherapy useBreast brachytherapyHospitalBrachytherapy
2011
Human annulus fibrosus material properties from biaxial testing and constitutive modeling are altered with degeneration
O’Connell G, Sen S, Elliott DM. Human annulus fibrosus material properties from biaxial testing and constitutive modeling are altered with degeneration. Biomechanics And Modeling In Mechanobiology 2011, 11: 493-503. PMID: 21748426, PMCID: PMC3500512, DOI: 10.1007/s10237-011-0328-9.Peer-Reviewed Original Research