2022
Acute Ischemic Stroke, Depressed Left Ventricular Ejection Fraction, and Sinus Rhythm: Prevalence and Practice Patterns
Baker AD, Schwamm LH, Sanborn DY, Furie K, Stretz C, Mac Grory B, Yaghi S, Kleindorfer D, Sucharew H, Mackey J, Walsh K, Flaherty M, Kissela B, Alwell K, Khoury J, Khatri P, Adeoye O, Ferioli S, Woo D, Martini S, La Rosa F, Demel SL, Madsen T, Star M, Coleman E, Slavin S, Jasne A, Mistry EA, Haverbusch M, Merkler AE, Kamel H, Schindler J, Sansing LH, Faridi KF, Sugeng L, Sheth KN, Sharma R. Acute Ischemic Stroke, Depressed Left Ventricular Ejection Fraction, and Sinus Rhythm: Prevalence and Practice Patterns. Stroke 2022, 53: 1883-1891. PMID: 35086361, PMCID: PMC10214981, DOI: 10.1161/strokeaha.121.036706.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionAcute ischemic strokeDepressed left ventricular ejection fractionVentricular ejection fractionSinus rhythmIschemic strokeEjection fractionPooled prevalenceHealth Stroke Severity ScaleSecondary stroke prevention strategiesMultivariable logistic regression modelAntithrombotic treatment regimensHospital-based cohortRetrospective cohort studySecondary stroke preventionStroke prevention strategiesMulti-center cohortStroke Severity ScaleLogistic regression modelsEchocardiographic characteristicsHospitalization dischargeAntiplatelet therapyStroke preventionCardiac thrombusCohort study
2019
Epilepsy Among Elderly Medicare Beneficiaries
Moura L, Smith J, Blacker D, Vogeli C, Schwamm L, Cole A, Hernandez-Diaz S, Hsu J. Epilepsy Among Elderly Medicare Beneficiaries. Medical Care 2019, 57: 318-324. PMID: 30762723, PMCID: PMC6417929, DOI: 10.1097/mlr.0000000000001072.Peer-Reviewed Original ResearchConceptsMedicare administrative dataEpilepsy statusMedicare beneficiariesMedicare dataEpilepsy diagnosisElectronic health record dataElderly Medicare beneficiariesHealth record dataHealth insurance claimsAdministrative dataElectronic health recordsIncident epilepsyPrevalent epilepsyDrug claimsEpilepsyDiagnostic thresholdStratified random sampleInverse probabilityHealth records
2017
Association of Preceding Antithrombotic Treatment With Acute Ischemic Stroke Severity and In-Hospital Outcomes Among Patients With Atrial Fibrillation
Xian Y, O’Brien E, Liang L, Xu H, Schwamm L, Fonarow G, Bhatt D, Smith E, Olson D, Maisch L, Hannah D, Lindholm B, Lytle B, Pencina M, Hernandez A, Peterson E. Association of Preceding Antithrombotic Treatment With Acute Ischemic Stroke Severity and In-Hospital Outcomes Among Patients With Atrial Fibrillation. JAMA 2017, 317: 1057-1067. PMID: 28291892, DOI: 10.1001/jama.2017.1371.Peer-Reviewed Original ResearchConceptsAcute ischemic strokeHistory of AFAntithrombotic therapyAntiplatelet therapyAntithrombotic treatmentAtrial fibrillationHospital mortalityTherapeutic warfarinTherapeutic anticoagulationSevere strokeIschemic strokeStroke severityLower oddsSubtherapeutic warfarinUnadjusted ratesAcute ischemic stroke severityGuidelines-Stroke programHealth Stroke ScaleIn-Hospital OutcomesHigh-risk patientsPrevalence of patientsRetrospective observational studyTime of strokeIschemic stroke severityHospital outcomes
2013
Variable Selection and Prediction Using a Nested, Matched Case-Control Study: Application to Hospital Acquired Pneumonia in Stroke Patients
Qian J, Payabvash S, Kemmling A, Lev MH, Schwamm LH, Betensky RA. Variable Selection and Prediction Using a Nested, Matched Case-Control Study: Application to Hospital Acquired Pneumonia in Stroke Patients. Biometrics 2013, 70: 153-163. PMID: 24320930, PMCID: PMC3954429, DOI: 10.1111/biom.12113.Peer-Reviewed Original ResearchConceptsMassachusetts General HospitalCase-control studyStroke patientsAcute ischemic stroke patientsBrain regionsMatched Case-Control StudyHospital-Acquired PneumoniaIschemic stroke patientsLarge prospective studiesUnconditional logistic regressionCase-control designSpecific brain regionsAcquired PneumoniaAcute infarctionClinical featuresProspective studyClinical variablesGeneral HospitalEpidemiologic studiesPatientsModern imagingLarger studyLogistic regressionAppropriate statistical analysisHAP studiesFactors Influencing the Decline in Stroke Mortality
Lackland DT, Roccella EJ, Deutsch AF, Fornage M, George MG, Howard G, Kissela BM, Kittner SJ, Lichtman JH, Lisabeth LD, Schwamm LH, Smith EE, Towfighi A. Factors Influencing the Decline in Stroke Mortality. Stroke 2013, 45: 315-353. PMID: 24309587, PMCID: PMC5995123, DOI: 10.1161/01.str.0000437068.30550.cf.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge FactorsAgedAged, 80 and overAir PollutionAmerican Heart AssociationAspirinAssociationAtrial FibrillationBlood PressureClinical Trials as TopicDiabetes MellitusExerciseFemaleHeart DiseasesHumansHyperlipidemiasHypertensionIncidenceInternational Classification of DiseasesMaleMiddle AgedObesityObservational Studies as TopicPlatelet Aggregation InhibitorsPopulationPrevalenceSecondary PreventionSex FactorsSmokingStrokeThrombolytic TherapyUnited StatesYoung AdultConceptsStroke mortalityCause of deathStroke riskAmerican Heart Association Stroke Council's Scientific Statement Oversight CommitteeAmerican Heart Association's Manuscript Oversight CommitteeAmerican Heart Association Science AdvisoryScientific Statements Oversight Committee reviewStroke Council Leadership reviewLower case fatality rateEvidence-based public health programsMajor public health burdenControl of hypertensionChronic lung diseaseFourth leading causeCase fatality rateTreatment of hypertensionPublic health burdenWriting group membersAttributable risk estimatesPublic health guidelinesYears of ageMajor public healthPublic health programsCombination of interventionsDyslipidemia control
2012
Care and Outcomes of Hispanic Patients Admitted With Heart Failure With Preserved or Reduced Ejection Fraction
Vivo R, Krim S, Krim N, Zhao X, Hernandez A, Peterson E, Piña I, Bhatt D, Schwamm L, Fonarow G. Care and Outcomes of Hispanic Patients Admitted With Heart Failure With Preserved or Reduced Ejection Fraction. Circulation Heart Failure 2012, 5: 167-175. PMID: 22414939, DOI: 10.1161/circheartfailure.111.963546.Peer-Reviewed Original ResearchConceptsNon-Hispanic whitesEjection fractionHeart failureQuality of careHF patientsNon-Hispanic white patientsLeft ventricular ejection fractionGuidelines-Heart FailureVentricular ejection fractionOverweight/obesityLower mortality riskPercent of HispanicsHospital survivalInpatient mortalityWhite patientsHispanic patientsHispanic ethnicityMortality riskHigh riskEquitable carePerformance improvement programMultivariate analysisPatientsStudy periodCare
2007
Serum lipid profile on admission for ischemic stroke
Smith E, Abdullah A, Amirfarzan H, Schwamm L. Serum lipid profile on admission for ischemic stroke. Neurology 2007, 68: 660-665. PMID: 17325272, DOI: 10.1212/01.wnl.0000255941.03761.dc.Peer-Reviewed Original ResearchConceptsLipid-lowering agentsLow-density lipoproteinStroke/TIALDL goalLDL targetsNational Cholesterol Education Program Adult Treatment Panel guidelinesAdult Treatment Panel guidelinesLow-density lipoprotein levelsIschemic stroke/TIACharacteristics of patientsSerum lipid profileATPIII guidelinesCardiovascular eventsIschemic strokeLipoprotein levelsLDL levelsLipid profileMultivariable modelPanel guidelinesLipid measurementsNational guidelinesTherapeutic targetGreater riskPatientsCalendar time
2006
Guidelines for Prevention of Stroke in Patients With Ischemic Stroke or Transient Ischemic Attack
Sacco R, Adams R, Albers G, Alberts M, Benavente O, Furie K, Goldstein L, Gorelick P, Halperin J, Harbaugh R, Johnston S, Katzan I, Kelly-Hayes M, Kenton E, Marks M, Schwamm L, Tomsick T. Guidelines for Prevention of Stroke in Patients With Ischemic Stroke or Transient Ischemic Attack. Stroke 2006, 37: 577-617. PMID: 16432246, DOI: 10.1161/01.str.0000199147.30016.74.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAlcohol DrinkingAnti-Inflammatory Agents, Non-SteroidalBlood PressureBrain IschemiaClinical Trials as TopicComorbidityCoronary DiseaseDiabetes ComplicationsFemaleHumansHypertensionIschemic Attack, TransientMaleMiddle AgedObesityPrevalenceRiskRisk AssessmentRisk FactorsRisk Reduction BehaviorSmokingStrokeUnited StatesConceptsTransient ischemic attackEvidence-based recommendationsIschemic strokeIschemic attackCerebral venous sinus thrombosisTimely evidence-based recommendationsUse of anticoagulationVenous sinus thrombosisPrevention of strokeHigh-risk populationSickle cell diseaseImplementation of guidelinesAntithrombotic treatmentRecurrent strokeSinus thrombosisNoncardioembolic strokePostmenopausal hormonesAntiplatelet agentsArterial dissectionHypercoagulable statePatent foramenAtherosclerotic diseaseCerebral hemorrhageRisk factorsInterventional approaches