2024
Association of Traditional and Nontraditional Risk Factors in the Development of Strokes Among Young Adults by Sex and Age Group: A Retrospective Case-Control Study
Leppert M, Poisson S, Scarbro S, Suresh K, Lisabeth L, Putaala J, Schwamm L, Daugherty S, Bradley C, Burke J, Ho P. Association of Traditional and Nontraditional Risk Factors in the Development of Strokes Among Young Adults by Sex and Age Group: A Retrospective Case-Control Study. Circulation Cardiovascular Quality And Outcomes 2024, 17: e010307. PMID: 38529631, PMCID: PMC11021148, DOI: 10.1161/circoutcomes.123.010307.Peer-Reviewed Original ResearchConceptsTraditional risk factorsDevelopment of strokeNontraditional risk factorsCase-control studyRisk factorsRetrospective case-control studyAge groupsContribution of traditional risk factorsYoung adultsConditional logistic regression modelsPopulation attributable riskCount of risk factorsStroke-free controlsAll Payer Claims DatabaseAssociation of strokeColorado All Payer Claims DatabaseLogistic regression modelsPayer Claims DatabaseIncreased risk of strokeAttributable riskRisk of strokeStroke eventsYears of ageInsurance typeIncreased risk
2023
Tenecteplase versus alteplase in acute ischaemic cerebrovascular events (TRACE-2): a phase 3, multicentre, open-label, randomised controlled, non-inferiority trial
Wang Y, Li S, Pan Y, Li H, Parsons M, Campbell B, Schwamm L, Fisher M, Che F, Dai H, Li D, Li R, Wang J, Wang Y, Zhao X, Li Z, Zheng H, Xiong Y, Meng X, Investigators T, Li R, Wang D, Wang Y, Chen S, Deng D, Zhang H, Wang J, Chen H, Zhang H, Wu Y, Liu H, Lu G, Zhao L, Zhu R, Liu Y, Yi F, Gao J, Dai H, Hao J, Che F, Cai X, Duan Z, Yu H, Wei T, Tang Y, Peng Z, Zhang B, Song Y, Chen X, Liu Y, Liu J, Li D, Zhao W, Wei X, Xue Q, Liu X, Yang Y, zhao C, Chen J, Sui Y, Sheng G, Zhang Y, Liu J, Zhang L, Wang W, Guo Z, Li H, Hu R, Chen G, Liang Z, Chen J, Xia L, Long Z. Tenecteplase versus alteplase in acute ischaemic cerebrovascular events (TRACE-2): a phase 3, multicentre, open-label, randomised controlled, non-inferiority trial. The Lancet 2023, 401: 645-654. PMID: 36774935, DOI: 10.1016/s0140-6736(22)02600-9.Peer-Reviewed Original ResearchConceptsSymptomatic intracranial hemorrhageAcute ischemic strokeAlteplase groupTenecteplase groupNon-inferiority marginNon-inferiority trialIschemic strokeModified intentionTreat populationEndovascular thrombectomyIntracranial hemorrhageRisk ratioScale scoreAcute ischemic cerebrovascular eventsHealth Stroke Scale scoreMedical Sciences (CAMS) Innovation FundStandard intravenous thrombolysisIschemic cerebrovascular eventsPrimary efficacy outcomePrimary safety outcomeStroke Scale scoreRankin Scale scoreProportion of participantsIntravenous tenecteplaseIntravenous thrombolysis
2022
Development and validation of the age-associated dementia policy (AgeD-Pol) computer simulation model in the USA and Europe
Hyle E, Foote J, Shebl F, Qian Y, Reddy K, Mukerji S, Wattananimitgul N, Viswanathan A, Schwamm L, Pandya A, Freedberg K. Development and validation of the age-associated dementia policy (AgeD-Pol) computer simulation model in the USA and Europe. BMJ Open 2022, 12: e056546. PMID: 35793913, PMCID: PMC9260808, DOI: 10.1136/bmjopen-2021-056546.Peer-Reviewed Original ResearchConceptsAge-associated dementiaKaiser Permanente Northern CaliforniaCumulative incidenceAAD incidenceInternal validationLifetime cumulative incidenceSex-stratified dataExternal validationFramingham Heart StudyCohort studyRotterdam StudyRotterdam cohortDisease burdenDisease progressionOutcome measuresHeart StudyDATA SOURCESACT cohortAdult ChangesCohort dataNatural historyCohortMortalityHealth systemIncidenceSystematic Review of Sex Differences in Ischemic Strokes Among Young Adults: Are Young Women Disproportionately at Risk?
Leppert M, Burke J, Lisabeth L, Madsen T, Kleindorfer D, Sillau S, Schwamm L, Daugherty S, Bradley C, Ho P, Poisson S. Systematic Review of Sex Differences in Ischemic Strokes Among Young Adults: Are Young Women Disproportionately at Risk? Stroke 2022, 53: 319-327. PMID: 35073188, PMCID: PMC8852306, DOI: 10.1161/strokeaha.121.037117.Peer-Reviewed Original ResearchConceptsIschemic strokeIncidence rate ratiosYoung adultsStroke incidenceSex-specific incidence rate ratiosSystematic reviewAge groupsSex differencesYoung womenMore womenRate ratioAdults 35Incidence rateStroke typeHigh riskAge adjustmentStrokeSignificant sex differencesRelevant articlesMore menWomenNonsignificant sex differencesAdultsRecent evidenceMen
2021
Changes in Virtual and In-Person Health Care Utilization in a Large Health System During the COVID-19 Pandemic
Zachrison K, Yan Z, Schwamm L. Changes in Virtual and In-Person Health Care Utilization in a Large Health System During the COVID-19 Pandemic. JAMA Network Open 2021, 4: e2129973. PMID: 34705016, PMCID: PMC8552053, DOI: 10.1001/jamanetworkopen.2021.29973.Peer-Reviewed Original ResearchThrombolysis in Mild Stroke
Asdaghi N, Romano J, Gardener H, Campo-Bustillo I, Purdon B, Khan Y, Gulati D, Broderick J, Schwamm L, Smith E, Saver J, Sacco R, Khatri P. Thrombolysis in Mild Stroke. Stroke 2021, 52: e586-e589. PMID: 34496619, DOI: 10.1161/strokeaha.120.033466.Peer-Reviewed Original ResearchConceptsNIHSS scoreClinical practiceHealth Stroke Scale scoreMild ischemic stroke patientsMedian NIHSS scoreTrial of thrombolysisStroke Scale scoreIschemic stroke patientsProportion of patientsBroad clinical practiceRoutine clinical practiceSyndromic severityTrial cohortStroke patientsMild strokeMild patientsNeurological syndromeAlteplasePatientsScale scoreLess severityMaRISSComparable deficitsNational InstituteSeverityAnticonvulsant Primary and Secondary Prophylaxis for Acute Ischemic Stroke Patients
Jones F, Sanches P, Smith J, Zafar S, Hernandez-Diaz S, Blacker D, Hsu J, Schwamm L, Westover M, Moura L. Anticonvulsant Primary and Secondary Prophylaxis for Acute Ischemic Stroke Patients. Stroke 2021, 52: 2782-2791. PMID: 34126758, PMCID: PMC8384723, DOI: 10.1161/strokeaha.120.033299.Peer-Reviewed Original ResearchConceptsQuality-adjusted life expectancySecondary prophylaxisAdverse drug reactionsADR riskLate seizuresPrimary prophylaxisMale patientsFemale patientsLifetime riskLS riskAcute ischemic stroke hospitalizationsLong-term secondary prophylaxisAcute ischemic stroke patientsHigher ADR risksAcute ischemic strokeIschemic stroke patientsIschemic stroke hospitalizationsCommon clinical scenariosShort-term therapyAnticonvulsant prophylaxisLifetime prophylaxisPersistent seizuresSeizure prophylaxisEarly seizuresIschemic strokeAccess to Mechanical Thrombectomy for Ischemic Stroke in the United States
Kamel H, Parikh N, Chatterjee A, Kim L, Saver J, Schwamm L, Zachrison K, Nogueira R, Adeoye O, Díaz I, Ryan A, Pandya A, Navi B. Access to Mechanical Thrombectomy for Ischemic Stroke in the United States. Stroke 2021, 52: 2554-2561. PMID: 33980045, PMCID: PMC8316281, DOI: 10.1161/strokeaha.120.033485.Peer-Reviewed Original ResearchConceptsIschemic strokeMechanical thrombectomyUnadjusted logistic regression modelsNonfederal emergency departmentsAcute ischemic strokeLarge cerebral vesselsAcute care hospitalsMultiple sensitivity analysesLogistic regression modelsStandard descriptive statisticsIntravenous thrombolysisStroke severityUrban patientsCare hospitalSuch patientsInterhospital transferRural patientsStroke careEmergency departmentPopulation-wide dataCerebral vesselsThrombectomyCalendar year 2016PatientsPrimary analysisReperfusion Treatment and Stroke Outcomes in Hospitals With Telestroke Capacity
Wilcock A, Schwamm L, Zubizarreta J, Zachrison K, Uscher-Pines L, Richard J, Mehrotra A. Reperfusion Treatment and Stroke Outcomes in Hospitals With Telestroke Capacity. JAMA Neurology 2021, 78: 527-535. PMID: 33646272, PMCID: PMC7922240, DOI: 10.1001/jamaneurol.2021.0023.Peer-Reviewed Original ResearchConceptsAcute ischemic strokeReperfusion treatmentIschemic strokeShort-term acute carePatients 85 yearsLow-volume hospitalsYear of admissionHospital emergency departmentTraditional Medicare beneficiariesClinical characteristicsCritical access hospitalsStroke outcomeAcute careControl hospitalsEmergency departmentMean ageFunctional statusPrimary diagnosisStroke expertiseHospital characteristicsMAIN OUTCOMEMedicare beneficiariesPatientsHospitalCare patterns
2019
Intravenous Tissue Plasminogen Activator in Stroke Mimics
Ali-Ahmed F, Federspiel J, Liang L, Xu H, Sevilis T, Hernandez A, Kosinski A, Prvu Bettger J, Smith E, Bhatt D, Schwamm L, Fonarow G, Peterson E, Xian Y. Intravenous Tissue Plasminogen Activator in Stroke Mimics. Circulation Cardiovascular Quality And Outcomes 2019, 12: e005609. PMID: 31412730, PMCID: PMC6699639, DOI: 10.1161/circoutcomes.119.005609.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, IntravenousAdultAgedAged, 80 and overBrain IschemiaDiagnosis, DifferentialFemaleFibrinolytic AgentsHumansIntracranial HemorrhagesMaleMiddle AgedPredictive Value of TestsRegistriesRisk AssessmentRisk FactorsStrokeThrombolytic TherapyTissue Plasminogen ActivatorTreatment OutcomeUnited StatesUnnecessary ProceduresConceptsTransient ischemic attackStroke mimicsIschemic strokeIschemic attackPrior stroke/transient ischemic attackStroke/transient ischemic attackIntravenous tissue plasminogen activatorGuidelines-Stroke registrySymptomatic intracranial hemorrhageCardiovascular risk factorsHealth Stroke ScaleHospital mortality rateAcute ischemic strokeStroke-like symptomsTissue plasminogen activatorUse of tPANonstroke diagnosisThrombolysis safetyIntravenous tPAStroke ScaleComplication rateIntracranial hemorrhagePresumed strokeRisk factorsFunctional disordersHospital distance, socioeconomic status, and timely treatment of ischemic stroke.
Ader J, Wu J, Fonarow GC, Smith EE, Shah S, Xian Y, Bhatt DL, Schwamm LH, Reeves MJ, Matsouaka RA, Sheth KN. Hospital distance, socioeconomic status, and timely treatment of ischemic stroke. Neurology 2019, 93: e747-e757. PMID: 31320472, PMCID: PMC6711658, DOI: 10.1212/wnl.0000000000007963.Peer-Reviewed Original ResearchConceptsTPA administrationHome zip codeSocioeconomic statusHospital mortalityTime quartilesLower oddsHierarchical multivariable logistic regression modelsTissue plasminogen activator administrationPatient's home zip codeMultivariable logistic regression modelZip code median household incomeGuidelines-Stroke registryPatients' socioeconomic statusRetrospective observational studyLow socioeconomic statusEmergency medical servicesLogistic regression modelsLowest SES quintileHigher socioeconomic statusShorter OTTIschemic strokeSecondary outcomesPatient agePrimary outcomeObservational studyThrombolysis in young adults with stroke: Findings from Get With The Guidelines-Stroke.
Dodds J, Xian Y, Sheng S, Fonarow G, Bhatt D, Matsouaka R, Schwamm L, Peterson E, Smith E. Thrombolysis in young adults with stroke: Findings from Get With The Guidelines-Stroke. Neurology 2019, 92: e2784-e2792. PMID: 31092622, DOI: 10.1212/wnl.0000000000007653.Peer-Reviewed Original ResearchConceptsAcute ischemic strokeTissue plasminogen activatorIschemic strokeOlder patientsYounger patientsYears of ageSymptomatic intracranial hemorrhage rateYoung adultsGuidelines-Stroke registryIntracranial hemorrhage rateGuidelines-StrokeHospital mortalityHospital arrivalHemorrhage rateIntracranial hemorrhageMultivariable modelPatientsBetter outcomesStrokePlasminogen activatorTPA treatmentTreatmentAdultsAgeOutcomesPatient and clinician experiences with telehealth for patient follow-up care.
Donelan K, Barreto E, Sossong S, Michael C, Estrada J, Cohen A, Wozniak J, Schwamm L. Patient and clinician experiences with telehealth for patient follow-up care. The American Journal Of Managed Care 2019, 25: 40-44. PMID: 30667610.Peer-Reviewed Original Research
2018
Intravenous thrombolysis in unwitnessed stroke onset: MR WITNESS trial results
Schwamm L, Wu O, Song S, Latour L, Ford A, Hsia A, Muzikansky A, Betensky R, Yoo A, Lev M, Boulouis G, Lauer A, Cougo P, Copen W, Harris G, Warach S, Investigators O. Intravenous thrombolysis in unwitnessed stroke onset: MR WITNESS trial results. Annals Of Neurology 2018, 83: 980-993. PMID: 29689135, PMCID: PMC6095471, DOI: 10.1002/ana.25235.Peer-Reviewed Original ResearchConceptsMagnetic resonance imagingSymptomatic intracranial hemorrhageLarge vessel occlusionIntravenous thrombolysisSymptom discoveryVessel occlusionAcute ischemic stroke patientsFluid-attenuated inversion recovery magnetic resonance imagingInversion recovery magnetic resonance imagingDiffusion-weighted magnetic resonance imagingIschemic stroke patientsStroke durationAnn NeurolSymptomatic edemaUnwitnessed onsetUnwitnessed strokeIntravenous alteplaseRankin ScaleSecondary outcomesStroke onsetSymptom onsetPrimary outcomeIntracranial hemorrhageProspective studyStroke patientsSafety and Efficacy of a 3-Dimensional Stent Retriever With Aspiration-Based Thrombectomy vs Aspiration-Based Thrombectomy Alone in Acute Ischemic Stroke Intervention: A Randomized Clinical Trial
Nogueira R, Frei D, Kirmani J, Zaidat O, Lopes D, Turk A, Heck D, Mason B, Haussen D, Levy E, Mehta S, Lazzaro M, Chen M, Dörfler A, Yoo A, Derdeyn C, Schwamm L, Langer D, Siddiqui A. Safety and Efficacy of a 3-Dimensional Stent Retriever With Aspiration-Based Thrombectomy vs Aspiration-Based Thrombectomy Alone in Acute Ischemic Stroke Intervention: A Randomized Clinical Trial. JAMA Neurology 2018, 75: 304-311. PMID: 29296999, PMCID: PMC5885851, DOI: 10.1001/jamaneurol.2017.3967.Peer-Reviewed Original ResearchConceptsAcute ischemic strokeSerious adverse eventsProcedure-related serious adverse eventsStent retrieverMechanical thrombectomy devicesAspiration groupAdverse eventsEnd pointClinical trialsThrombectomy devicesLarge vessel acute ischemic strokeDevice-related serious adverse eventsScale scoreHealth Stroke Scale scoreMedian baseline NIHSS scorePrimary effectiveness end pointPrimary safety end pointAcute ischemic stroke interventionCerebral infarction (TICI) gradeEffectiveness end pointBaseline NIHSS scorePrimary end pointSafety end pointStroke Scale scoreHours of onset
2017
Experience with telemedicine in a multi-disciplinary ALS clinic
Van De Rijn M, Paganoni S, Levine-Weinberg M, Campbell K, Ellrodt A, Estrada J, Cohen A, Schwamm L, Berry J. Experience with telemedicine in a multi-disciplinary ALS clinic. Amyotrophic Lateral Sclerosis And Frontotemporal Degeneration 2017, 19: 143-148. PMID: 29250986, DOI: 10.1080/21678421.2017.1392577.Peer-Reviewed Original ResearchIschemic Stroke Profile, Risk Factors, and Outcomes in India
Sylaja P, Pandian J, Kaul S, Srivastava M, Khurana D, Schwamm L, Kesav P, Arora D, Pannu A, Thankachan T, Singhal A. Ischemic Stroke Profile, Risk Factors, and Outcomes in India. Stroke 2017, 49: 219-222. PMID: 29167386, PMCID: PMC5742046, DOI: 10.1161/strokeaha.117.018700.Peer-Reviewed Original ResearchConceptsAdmission National InstitutesHealth Stroke ScaleStroke ScaleIschemic strokeDiabetes mellitusRisk factorsHealth Stroke Scale scoreLower admission National InstitutesMedian admission National InstitutesNational InstituteRankin Scale score 0Stroke etiologic subtypesIntra-arterial thrombolysisStroke Scale scoreAcademic tertiary hospitalCommon risk factorsMagnetic resonance imagingHospital mortalityEtiologic subtypesStroke careStroke ProjectTertiary hospitalAtrial fibrillationStroke guidelinesMean ageImproving transitions in acute stroke patients discharged to home: the Michigan stroke transitions trial (MISTT) protocol
Reeves M, Hughes A, Woodward A, Freddolino P, Coursaris C, Swierenga S, Schwamm L, Fritz M. Improving transitions in acute stroke patients discharged to home: the Michigan stroke transitions trial (MISTT) protocol. BMC Neurology 2017, 17: 115. PMID: 28623892, PMCID: PMC5474297, DOI: 10.1186/s12883-017-0895-1.Peer-Reviewed Original ResearchConceptsAcute stroke patientsCase management programPatient Activation MeasureStroke patientsCaregiver outcomesTransition trialsRehabilitation facilityAdult acute stroke patientsBakas Caregiving Outcomes ScalePrimary caregiversOutcome 3 monthsPrimary patient outcomePatient's primary caregiverEvidence-based standardsHealth-related challengesUsual careHospital dischargeSuperiority trialEligible participantsOutcome ScaleTrial protocolPatient outcomesStudy interventionMichigan hospitalsOutcome dataMultiparametric Magnetic Resonance Imaging for Prediction of Parenchymal Hemorrhage in Acute Ischemic Stroke After Reperfusion Therapy
Nael K, Knitter J, Jahan R, Gornbein J, Ajani Z, Feng L, Meyer B, Schwamm L, Yoo A, Marshall R, Meyers P, Yavagal D, Wintermark M, Liebeskind D, Guzy J, Starkman S, Saver J, Kidwell C. Multiparametric Magnetic Resonance Imaging for Prediction of Parenchymal Hemorrhage in Acute Ischemic Stroke After Reperfusion Therapy. Stroke 2017, 48: 664-670. PMID: 28138001, PMCID: PMC5325250, DOI: 10.1161/strokeaha.116.014343.Peer-Reviewed Original ResearchConceptsCerebral blood volumeAcute ischemic strokeParenchymal hemorrhageReperfusion therapyIschemic strokeReceiver-operating characteristic curve analysisApparent diffusion coefficientMultiparametric magnetic resonance imagingPretreatment magnetic resonanceMagnetic resonance perfusionValues of CBVCharacteristic curve analysisApparent diffusion coefficient (ADC) valuesMagnetic resonance imagingIndependent predictorsIschemic coreRisk stratificationUnivariate analysisClinical trialsMicrovascular permeabilityBlood volumeInfarction corePatientsResonance imagingDiagnostic accuracy
2016
Treatment With Tissue Plasminogen Activator in the Golden Hour and the Shape of the 4.5-Hour Time-Benefit Curve in the National United States Get With The Guidelines-Stroke Population
Kim J, Fonarow G, Smith E, Reeves M, Navalkele D, Grotta J, Grau-Sepulveda M, Hernandez A, Peterson E, Schwamm L, Saver J. Treatment With Tissue Plasminogen Activator in the Golden Hour and the Shape of the 4.5-Hour Time-Benefit Curve in the National United States Get With The Guidelines-Stroke Population. Circulation 2016, 135: 128-139. PMID: 27815374, DOI: 10.1161/circulationaha.116.023336.Peer-Reviewed Original ResearchConceptsAcute ischemic strokeTissue plasminogen activatorIschemic strokeHospital mortalityIndependent ambulationPlasminogen activatorTissue plasminogen activator-treated patientsIntravenous tissue plasminogen activatorTissue plasminogen activator treatmentIschemic stroke outcomeHours of onsetOdds of dischargePlasminogen activator treatmentMinutes of onsetNational United StatesHemorrhagic complicationsStroke outcomeMedian onsetThrombolytic therapyStroke systemsBetter outcomesPatientsActivator treatmentGolden hourTreatment time