2023
Insurance-Based Disparities in Stroke Center Access in California: A Network Science Approach
Zachrison K, Hsia R, Schwamm L, Yan Z, Samuels-Kalow M, Reeves M, Camargo C, Onnela J. Insurance-Based Disparities in Stroke Center Access in California: A Network Science Approach. Circulation Cardiovascular Quality And Outcomes 2023, 16: e009868. PMID: 37746725, PMCID: PMC10592016, DOI: 10.1161/circoutcomes.122.009868.Peer-Reviewed Original ResearchConceptsInsurance-based disparitiesStroke centersEmergency departmentHospital clustersInitial emergency departmentIschemic stroke admissionsHospital emergency departmentClusters of hospitalsLogistic regression modelsStroke admissionsUninsured patientsPatient insuranceLower oddsPatientsLess strokeCenter accessOddsCenter transferHospitalLikelihood of transferInsurance groupsRegression modelsLower proportionDepartmentAssociation
2022
Improving detection of cerebral small vessel disease aetiology in patients with isolated lobar intracerebral haemorrhage
Das A, Gokcal E, Regenhardt R, Horn M, Schwab K, Daoud N, Viswanathan A, Kimberly W, Goldstein J, Biffi A, Rost N, Rosand J, Schwamm L, Greenberg S, Gurol M. Improving detection of cerebral small vessel disease aetiology in patients with isolated lobar intracerebral haemorrhage. Stroke And Vascular Neurology 2022, 8: 26-33. PMID: 35981809, PMCID: PMC9985798, DOI: 10.1136/svn-2022-001653.Peer-Reviewed Original ResearchConceptsLeft ventricular hypertrophyCerebral amyloid angiopathyLobar intracerebral hemorrhageIntracerebral hemorrhageImaging markerFrequency of LVHCerebral small vessel diseaseSmall vessel diseaseAetiologic groupsLobar lacunesAmyloid angiopathyVentricular hypertrophyVessel diseasePresence/distributionPatientsDisease etiologyHemorrhageLacunesMarkersRegression modelsAngiopathyHigh frequencyHypertrophyEtiologyDiseaseIschemic Stroke Systems of Care in California: Evolution in the Organization During the Mechanical Thrombectomy Era
Zachrison K, Hsia R, Li S, Reeves M, Camargo C, Yan Z, Onnela J, Schwamm L. Ischemic Stroke Systems of Care in California: Evolution in the Organization During the Mechanical Thrombectomy Era. Stroke Vascular And Interventional Neurology 2022, 2 DOI: 10.1161/svin.121.000206.Peer-Reviewed Original ResearchEndovascular thrombectomyStroke systemsHospital-level factorsOdds of transferLogistic regression modelsAlteplase useEVT proceduresStroke NetworkObservational studyTimely careRural hospitalsTrial dataHospitalPatientsHospital postsHospital pairsCarePatient transfer networksRegression modelsNumber of encountersLinear regressionThrombectomyAlteplaseRegressionGreater POST
2021
Outcomes of Endovascular Therapy in Patients With Prestroke Mobility Impairment
Beekman R, Sun JL, Alhanti B, Schwamm LH, Smith EE, Bhatt DL, Xian Y, Shah S, Lytle BL, Fonarow GC, Sheth KN. Outcomes of Endovascular Therapy in Patients With Prestroke Mobility Impairment. Stroke 2021, 52: e725-e728. PMID: 34517771, DOI: 10.1161/strokeaha.121.034464.Peer-Reviewed Original ResearchConceptsEndovascular thrombectomyGuidelines-Stroke registrySymptomatic intracranial hemorrhageMobility impairmentsLogistic regression modelsHospital deathEndovascular therapyClinical benefitIntracranial hemorrhageAdverse outcomesClinical trialsThrombectomyPatientsOutcomesFurther studiesImpairmentRegression modelsNational data setsSafetyHemorrhageRegistryTherapyPopulationHospiceTrials
2016
Substantial Progress Yet Significant Opportunity for Improvement in Stroke Care in China
Li Z, Wang C, Zhao X, Liu L, Wang C, Li H, Shen H, Liang L, Bettger J, Yang Q, Wang D, Wang A, Pan Y, Jiang Y, Yang X, Zhang C, Fonarow G, Schwamm L, Hu B, Peterson E, Xian Y, Wang Y, Wang Y. Substantial Progress Yet Significant Opportunity for Improvement in Stroke Care in China. Stroke 2016, 47: 2843-2849. PMID: 27758941, DOI: 10.1161/strokeaha.116.014143.Peer-Reviewed Original ResearchConceptsChina National Stroke RegistryIntravenous thrombolytic therapyNational Stroke RegistryQuality Improvement ProgramHigher composite scoresStroke RegistryDysphagia screeningStroke careThrombolytic therapyAtrial fibrillationSmoking cessationLeading causeStroke educationMultivariate analysisStudy periodAdherenceComposite scoreHospitalPhase 2Phase 1CareRegression modelsOddsOverall qualitySignificant improvement