Ischemic Attack, TransientStrokeBrain IschemiaCerebrovascular DisordersRisk FactorsCerebral InfarctionCerebral HemorrhageFibrinolytic AgentsProspective StudiesTime FactorsTissue Plasminogen ActivatorAcute DiseaseCarotid StenosisFollow-Up StudiesTreatment OutcomeIntracranial EmbolismThrombolytic TherapyRecurrenceBrain InfarctionIntracranial ArteriosclerosisCarotid Artery DiseasesIntracranial HemorrhagesCohort StudiesCerebral AngiographyTomography, X-Ray ComputedInfarction, Middle Cerebral ArteryEndarterectomy, CarotidIntracranial Arterial DiseasesAnticoagulantsPredictive Value of TestsRetrospective StudiesIntracranial ThrombosisIncidenceAtrial FibrillationAspirinPlatelet Aggregation InhibitorsNeurologySeverity of Illness IndexMagnetic Resonance ImagingMagnetic Resonance AngiographyRiskIntracranial Embolism and ThrombosisCerebrovascular CirculationEmbolismCerebral ArteriesBrainSecondary PreventionComorbidityAge FactorsRisk AssessmentDiffusion Magnetic Resonance ImagingCarotid Artery, InternalWarfarinVertebrobasilar InsufficiencyCarotid ArteriesRegistriesEndarterectomyCerebral RevascularizationOdds RatioCase-Control StudiesUltrasonography, Doppler, TranscranialEmergency Medical ServicesPrognosisMoyamoya DiseaseInfarction, Posterior Cerebral ArteryRecovery of FunctionNeurologic ExaminationMultivariate AnalysisHypertensionAmaurosis FugaxParesisMigraine DisordersLogistic ModelsProportional Hazards ModelsForamen Ovale, PatentNeuroprotective AgentsSex FactorsArterial Occlusive DiseasesReperfusionMiddle Cerebral ArteryVascular DiseasesUnited StatesCerebral Arterial DiseasesPrevalenceCarotid Artery ThrombosisRandomized Controlled Trials as TopicIschemiaMyocardial InfarctionThromboembolismRegression AnalysisEchocardiography, TransesophagealTiclopidineStroke, LacunarStentsNervous System DiseasesAngiographyHemorrhageHospitalizationDiabetes ComplicationsBiological Markers