2023
Higher Procedural Volumes Are Associated with Faster Treatment Times, Better Functional Outcomes, and Lower Mortality in Patients Undergoing Endovascular Treatment for Acute Ischemic Stroke
Nogueira R, Haussen D, Smith E, Sun J, Xian Y, Alhanti B, Blanco R, Mac Grory B, Doheim M, Bhatt D, Fonarow G, Hassan A, Joundi R, Mocco J, Frankel M, Schwamm L. Higher Procedural Volumes Are Associated with Faster Treatment Times, Better Functional Outcomes, and Lower Mortality in Patients Undergoing Endovascular Treatment for Acute Ischemic Stroke. Annals Of Neurology 2023, 95: 146-155. PMID: 37731004, DOI: 10.1002/ana.26803.Peer-Reviewed Original ResearchHigh procedural volumeProcedural volumeEndovascular therapyHospital mortalityPrimary cohortAIS patientsFaster treatment timesAcute ischemic stroke patientsGood discharge outcomeGuidelines-Stroke registryPretreatment National InstitutesHealth Stroke ScaleAcute ischemic strokeIschemic stroke patientsObservational cohort studyHospital procedural volumeLower ratesStroke ScaleCohort studyIschemic strokeArterial punctureDischarge outcomesEndovascular treatmentInterhospital transferStroke patients
2022
Comparative Effectiveness and Safety of Seizure Prophylaxis Among Adults After Acute Ischemic Stroke
Moura L, Donahue M, Yan Z, Smith L, Hsu J, Newhouse J, Schwamm L, Haneuse S, Hernandez-Diaz S, Blacker D. Comparative Effectiveness and Safety of Seizure Prophylaxis Among Adults After Acute Ischemic Stroke. Stroke 2022, 54: 527-536. PMID: 36544249, PMCID: PMC9870933, DOI: 10.1161/strokeaha.122.039946.Peer-Reviewed Original ResearchConceptsSeizure prophylaxisRisk differenceAntiseizure drugsEarly seizure prophylaxisSevere AIS patientsAcute ischemic strokePrespecified subgroup analysisHealth care factorsInverse probability weightsElectronic health recordsAIS admissionsPoststroke mortalityStroke RegistryIschemic strokeAIS patientsStroke settingsCare factorsSubgroup analysisProphylaxisMortality riskHigh riskPatientsComparative effectivenessExcess deathsTrial data
2020
Language preference does not influence stroke patients' symptom recognition or emergency care time metrics
Zachrison K, Natsui S, Luan Erfe B, Mejia N, Schwamm L. Language preference does not influence stroke patients' symptom recognition or emergency care time metrics. The American Journal Of Emergency Medicine 2020, 40: 177-180. PMID: 33168382, DOI: 10.1016/j.ajem.2020.10.064.Peer-Reviewed Original ResearchConceptsResearch Patient Data RegistrySymptom recognitionDTN timeHospital arrivalSymptom discoveryAIS patientsEMS utilizationGuidelines-Stroke registryPatients' language preferenceConsecutive AIS patientsPatient Data RegistryUse of EMSEmergency medical servicesLanguage preferenceAcute strokeNeedle timeSymptom onsetEP patientsData registryAcademic centersPatientsPrior reportsMedical servicesSignificant differencesRegistry
2019
Recent Myocardial Infarction is Associated With Increased Risk in Older Adults With Acute Ischemic Stroke Receiving Thrombolytic Therapy
Inohara T, Liang L, Kosinski A, Smith E, Schwamm L, Hernandez A, Bhatt D, Fonarow G, Peterson E, Xian Y. Recent Myocardial Infarction is Associated With Increased Risk in Older Adults With Acute Ischemic Stroke Receiving Thrombolytic Therapy. Journal Of The American Heart Association 2019, 8: e012450. PMID: 31327296, PMCID: PMC6761665, DOI: 10.1161/jaha.119.012450.Peer-Reviewed Original ResearchConceptsRecombinant tissue-type plasminogen activatorRecent myocardial infarctionAcute ischemic strokeHistory of MIRisk of mortalityMyocardial infarctionAIS patientsIschemic strokeIntravenous recombinant tissue-type plasminogen activatorST-segment elevation myocardial infarctionSegment elevation myocardial infarctionMultivariate logistic regression modelGuidelines-Stroke hospitalsOnly medical therapyElevation myocardial infarctionTissue-type plasminogen activatorLogistic regression modelsHospital mortalityHospital outcomesSevere strokeMedical therapyThrombolytic therapyHigh riskInfarctionPatients
2016
Relationship Between Language Preference and Intravenous Thrombolysis Among Acute Ischemic Stroke Patients
Erfe B, Siddiqui K, Schwamm L, Mejia N. Relationship Between Language Preference and Intravenous Thrombolysis Among Acute Ischemic Stroke Patients. Journal Of The American Heart Association 2016, 5: e003782. PMID: 27881425, PMCID: PMC5210419, DOI: 10.1161/jaha.116.003782.Peer-Reviewed Original ResearchConceptsLanguage preferencePatients' language preferenceAcute ischemic stroke patientsNon-English languageIschemic stroke patientsNIH Stroke ScaleAIS patientsDifferent languagesInitial NIH stroke scaleIntravenous thrombolysisPatient languageStroke ScaleStroke patientsLanguageStepwise logistic regression modelInitial stroke severityAmerican Heart AssociationEnglishLogistic regression modelsStroke severityMultivariable analysisPatient receiptHeart AssociationThrombolysisPatients
2015
Association of Acute and Chronic Hyperglycemia With Acute Ischemic Stroke Outcomes Post‐Thrombolysis: Findings From Get With The Guidelines‐Stroke
Masrur S, Cox M, Bhatt D, Smith E, Ellrodt G, Fonarow G, Schwamm L. Association of Acute and Chronic Hyperglycemia With Acute Ischemic Stroke Outcomes Post‐Thrombolysis: Findings From Get With The Guidelines‐Stroke. Journal Of The American Heart Association 2015, 4: e002193. PMID: 26408015, PMCID: PMC4845108, DOI: 10.1161/jaha.115.002193.Peer-Reviewed Original ResearchMeSH KeywordsAcute DiseaseAgedAged, 80 and overBiomarkersBlood GlucoseBrain IschemiaChi-Square DistributionChronic DiseaseFemaleFibrinolytic AgentsGlycated HemoglobinGuideline AdherenceHospital MortalityHumansHyperglycemiaLength of StayLogistic ModelsMaleMiddle AgedMultivariate AnalysisOdds RatioPractice Guidelines as TopicPractice Patterns, Physicians'RegistriesRetrospective StudiesRisk FactorsStrokeThrombolytic TherapyTime FactorsTissue Plasminogen ActivatorTreatment OutcomeUnited StatesConceptsTissue plasminogen activatorAssociation of acuteAcute ischemic strokeHistory of diabetesWorse clinical outcomesChronic hyperglycemiaClinical outcomesGuidelines-StrokeHospital mortalityAIS patientsBlood glucoseGlucose levelsPlasma glucose levelsBlood glucose levelsAdmission glucoseNondiabetic patientsPost thrombolysisIschemic strokeAcute hyperglycemiaDL increaseAcute correctionPoor outcomeAdverse outcomesOdds ratioHyperglycemiaFLAIR Vascular Hyperintensity is a Surrogate of Collateral Flow and Leukoaraiosis in Patients With Acute Stroke Due to Proximal Artery Occlusion
Karadeli H, Giurgiutiu D, Cloonan L, Fitzpatrick K, Kanakis A, Ozcan M, Schwamm L, Rost N. FLAIR Vascular Hyperintensity is a Surrogate of Collateral Flow and Leukoaraiosis in Patients With Acute Stroke Due to Proximal Artery Occlusion. Journal Of Neuroimaging 2015, 26: 219-223. PMID: 26250448, PMCID: PMC4744593, DOI: 10.1111/jon.12274.Peer-Reviewed Original ResearchConceptsProximal artery occlusionCollateral flow gradeFlow gradeAIS patientsWhite matter hyperintensitiesWMH volumeCT angiographyFVH scoreVascular hyperintensityArtery occlusionIntravenous tissue plasminogen activator administrationInversion recovery vascular hyperintensityAcute ischemic stroke patientsTissue plasminogen activator administrationAdmission CT angiographyBaseline CT angiographyCollateral vessel statusFLAIR vascular hyperintensityLeptomeningeal collateral statusMedian WMH volumeSalvageable brain tissueConsecutive AIS patientsIschemic stroke patientsWorse clinical outcomesAcute MRIRationale and design of a cluster-randomized multifaceted intervention trial to improve stroke care quality in China: The GOLDEN BRIDGE–Acute Ischemic Stroke
Wang Y, Li Z, Xian Y, Zhao X, Li H, Shen H, Wang C, Liu L, Wang C, Pan Y, Wang D, Bettger J, Fonarow G, Schwamm L, Smith S, Peterson E, Wang Y, investigators G. Rationale and design of a cluster-randomized multifaceted intervention trial to improve stroke care quality in China: The GOLDEN BRIDGE–Acute Ischemic Stroke. American Heart Journal 2015, 169: 767-774.e2. PMID: 26027613, DOI: 10.1016/j.ahj.2015.03.008.Peer-Reviewed Original ResearchConceptsMultifaceted quality improvement interventionAcute ischemic strokeQuality improvement interventionsIschemic strokeImprovement interventionsEvidence-based clinical pathwayEvidence-based performance measuresEvidence-based gapNew vascular eventsSecondary patient outcomesStroke care qualityGuideline-based recommendationsInitial symptom onsetCluster-randomized trialVascular eventsInhospital deathSymptom onsetPrimary outcomeCare protocolsAIS patientsIntervention trialsPatient outcomesClinical pathwayMultifaceted interventionsRoutine standard
2014
Determinants of Early Outcomes in Patients with Acute Ischemic Stroke and Proximal Artery Occlusion
LaBuzetta J, Yoo A, Ali S, Fitzpatrick K, Leslie-Mazwi T, Hirsch J, Schwamm L, Rost N. Determinants of Early Outcomes in Patients with Acute Ischemic Stroke and Proximal Artery Occlusion. Journal Of Stroke And Cerebrovascular Diseases 2014, 23: 2527-2532. PMID: 25238927, PMCID: PMC4256100, DOI: 10.1016/j.jstrokecerebrovasdis.2014.03.020.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, IntravenousAgedAged, 80 and overArterial Occlusive DiseasesBrain IschemiaCombined Modality TherapyEndovascular ProceduresFemaleFibrinolytic AgentsHumansInjections, Intra-ArterialLogistic ModelsMaleMiddle AgedPatient DischargeProspective StudiesRegional Blood FlowStrokeStroke RehabilitationTime FactorsTissue Plasminogen ActivatorTreatment OutcomeConceptsIntra-arterial therapyProximal artery occlusionArtery occlusionIndependent predictorsAIS patientsPoststroke outcomesFavorable outcomeAcute ischemic stroke patientsIntravenous tissue plasminogen activatorInstitutional stroke databaseAcute ischemic strokeIschemic stroke patientsOnly independent predictorTissue plasminogen activatorEligible patientsHospital mortalityTPA administrationIschemic strokeStroke databaseAtrial fibrillationEarly outcomesPrespecified protocolStroke patientsPatient subgroupsUnfavorable outcomeOutcomes of intravenous tissue plasminogen activator for acute ischaemic stroke in HIV‐infected adults
Sweeney E, Thakur K, Lyons J, Smith B, Willey J, Cervantes‐Arslanian A, Hickey M, Uchino K, Haussen D, Koch S, Schwamm L, Elkind M, Shinohara R, Mateen F. Outcomes of intravenous tissue plasminogen activator for acute ischaemic stroke in HIV‐infected adults. European Journal Of Neurology 2014, 21: 1394-1399. PMID: 25040336, DOI: 10.1111/ene.12506.Peer-Reviewed Original ResearchConceptsAcute ischemic strokeNationwide Inpatient SampleIntravenous tissue plasminogen activatorIV-tPA useIV-tPATissue plasminogen activatorUninfected patientsIschemic strokeAIS patientsUS Nationwide Inpatient SampleSex-adjusted odds ratiosPlasminogen activatorShort-term outcomesRisk of deathIV-tPA administrationProportion of deathsHospital mortalityHospital deathHIV serostatusIntracerebral hemorrhageInpatient SampleOdds ratioHIVAIS casesPatients
2013
Temporal Trends in Patient Characteristics and Treatment With Intravenous Thrombolysis Among Acute Ischemic Stroke Patients at Get With the Guidelines–Stroke Hospitals
Schwamm L, Ali S, Reeves M, Smith E, Saver J, Messe S, Bhatt D, Grau-Sepulveda M, Peterson E, Fonarow G. Temporal Trends in Patient Characteristics and Treatment With Intravenous Thrombolysis Among Acute Ischemic Stroke Patients at Get With the Guidelines–Stroke Hospitals. Circulation Cardiovascular Quality And Outcomes 2013, 6: 543-549. DOI: 10.1161/circoutcomes.111.000095.Peer-Reviewed Original ResearchAcute ischemic stroke patientsIschemic stroke patientsTPA useAIS patientsPatient characteristicsStroke patientsHospitalized acute ischemic stroke patientsIntravenous tissue plasminogen activator useTissue plasminogen activator useNonwhite race/ethnicityAdditional calendar yearGuidelines-Stroke hospitalsAmerican Heart AssociationRace/ethnicityAIS admissionsGuidelines-StrokeEligible patientsIntravenous thrombolysisIntravenous tPAMore patientsMultivariable analysisHeart AssociationMild strokeTPA timeUnivariate analysisTemporal trends in patient characteristics and treatment with intravenous thrombolysis among acute ischemic stroke patients at Get With The Guidelines-Stroke hospitals.
Schwamm L, Ali S, Reeves M, Smith E, Saver J, Messe S, Bhatt D, Grau-Sepulveda M, Peterson E, Fonarow G. Temporal trends in patient characteristics and treatment with intravenous thrombolysis among acute ischemic stroke patients at Get With The Guidelines-Stroke hospitals. Circulation Cardiovascular Quality And Outcomes 2013, 6: 543-9. PMID: 24046398, DOI: 10.1161/circoutcomes.111.000303.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, IntravenousAge FactorsAgedAged, 80 and overAmerican Heart AssociationBrain IschemiaChi-Square DistributionFemaleFibrinolytic AgentsHospitalsHumansMaleMiddle AgedMultivariate AnalysisOdds RatioQuality Indicators, Health CareRegistriesRisk FactorsStrokeThrombolytic TherapyTime FactorsTime-to-TreatmentTissue Plasminogen ActivatorTreatment OutcomeUnited StatesConceptsAcute ischemic stroke patientsIschemic stroke patientsTPA useAIS patientsPatient characteristicsStroke patientsHospitalized acute ischemic stroke patientsIntravenous tissue plasminogen activator useTissue plasminogen activator useNonwhite race/ethnicityAdditional calendar yearGuidelines-Stroke hospitalsAmerican Heart AssociationRace/ethnicityAIS admissionsGuidelines-StrokeEligible patientsIntravenous thrombolysisIntravenous tPAMore patientsMultivariable analysisHeart AssociationMild strokeTPA timeUnivariate analysis
2012
Death and Rehospitalization after Transient Ischemic Attack or Acute Ischemic Stroke: One-year Outcomes from the Adherence Evaluation of Acute Ischemic Stroke–Longitudinal Registry
Olson D, Cox M, Pan W, Sacco R, Fonarow G, Zorowitz R, LaBresh K, Schwamm L, Williams L, Goldstein L, Bushnell C, Peterson E, Registry A. Death and Rehospitalization after Transient Ischemic Attack or Acute Ischemic Stroke: One-year Outcomes from the Adherence Evaluation of Acute Ischemic Stroke–Longitudinal Registry. Journal Of Stroke And Cerebrovascular Diseases 2012, 22: e181-e188. PMID: 23273788, DOI: 10.1016/j.jstrokecerebrovasdis.2012.11.001.Peer-Reviewed Original ResearchConceptsTransient ischemic attackAcute ischemic strokeIschemic stroke Longitudinal (AVAIL) registryAIS patientsIschemic attackTIA patientsIschemic strokeAdherence evaluationPrimary composite outcomeOne-year outcomesRehospitalization of patientsRate of deathCause deathGuidelines-StrokePostdischarge riskCause mortalityCause rehospitalizationComposite outcomeHospital dischargeMedication useAdjusted ratesRehospitalizationPreventive guidelinesPatientsOne-year
2010
Risk of Thrombolytic Therapy for Acute Ischemic Stroke in Patients With Current Malignancy
Masrur S, Abdullah A, Smith E, Hidalgo R, El-Ghandour A, Rordorf G, Schwamm L. Risk of Thrombolytic Therapy for Acute Ischemic Stroke in Patients With Current Malignancy. Journal Of Stroke And Cerebrovascular Diseases 2010, 20: 124-130. PMID: 20598579, DOI: 10.1016/j.jstrokecerebrovasdis.2009.10.010.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBostonBrain IschemiaChi-Square DistributionComorbidityFemaleFibrinolytic AgentsHospital MortalityHumansIntracranial HemorrhagesLogistic ModelsMaleNeoplasmsOdds RatioRetrospective StudiesRisk AssessmentRisk FactorsStrokeThrombolytic TherapyTissue Plasminogen ActivatorTreatment OutcomeConceptsIntra-arterial therapyTissue plasminogen activatorSymptomatic intracranial hemorrhageCurrent malignancyHospital mortalityMedical comorbiditiesThrombolytic therapyIntracranial hemorrhageIndependent predictorsAIS patientsIntravenous (IV) tPAHealth Stroke Scale scoreStroke Scale scoreAcute ischemic strokeConsecutive AIS patientsHistory of hypertensionHistory of malignancyAmerican Stroke AssociationOnly independent predictorRisks of thrombolysisMost clinical trialsStepwise logistic regressionBrain metastasesIschemic strokePerformance status