StrokeBrain IschemiaCerebrovascular DisordersFibrinolytic AgentsTissue Plasminogen ActivatorCerebral HemorrhageCerebral InfarctionIschemic Attack, TransientRisk FactorsAcute DiseaseThrombolytic TherapyInfarction, Middle Cerebral ArteryBrain InfarctionIntracranial HemorrhagesProspective StudiesTreatment OutcomeTime FactorsIntracranial ThrombosisFollow-Up StudiesIntracranial EmbolismCohort StudiesTomography, X-Ray ComputedPredictive Value of TestsSeverity of Illness IndexRecovery of FunctionIntracranial ArteriosclerosisIncidenceNeuroprotective AgentsAnticoagulantsCerebral AngiographyRetrospective StudiesIntracranial Arterial DiseasesMagnetic Resonance ImagingCase-Control StudiesBrainReperfusionAtrial FibrillationCerebrovascular CirculationRecurrenceMagnetic Resonance AngiographyOdds RatioComorbidityStroke, LacunarRegistriesRiskPlatelet Aggregation InhibitorsCerebral ArteriesDiffusion Magnetic Resonance ImagingWarfarinCerebral RevascularizationAge FactorsParesisMechanical ThrombolysisMultivariate AnalysisThrombectomyAspirinCarotid StenosisRisk AssessmentMiddle Cerebral ArteryPrognosisInfarction, Anterior Cerebral ArteryProportional Hazards ModelsLogistic ModelsIschemiaNeurologyEmbolismCerebral Arterial DiseasesNeurologic ExaminationHypertensionUltrasonography, Doppler, TranscranialInjections, Intra-ArterialStroke VolumeBrain EdemaIntracranial Embolism and ThrombosisSecondary PreventionSex FactorsEmergency Medical ServicesRegression AnalysisBiological MarkersUnited StatesInjections, IntravenousCarotid Artery DiseasesCyclic Nucleotide Phosphodiesterases, Type 3Randomized Controlled Trials as TopicEuropean Continental Ancestry GroupOutcome Assessment (Health Care)KentuckyVertebrobasilar InsufficiencyHemiplegiaEndarterectomy, CarotidDisability EvaluationHospital UnitsDisease Models, AnimalGenetic Predisposition to DiseaseInfusions, Intra-ArterialDouble-Blind MethodVascular DiseasesHospitalizationSex DistributionDatabases, Factual