Toshiyuki Uehara

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BACKGROUND AND PURPOSE Fluid-attenuated inversion recovery vascular hyperintensity (FVH) is often identified in patients with acute ischemic stroke. The purpose of this study was to determine the clinical significance of FVH in patients with transient ischemic attack (TIA). METHODS Consecutive inpatients with TIA who underwent MRI within 24 hours of(More)
BACKGROUND AND PURPOSE To evaluate the current status of care and cost of acute ischemic stroke in Japan, we performed a hospital-based analysis at a tertiary emergency hospital with a 24-hour neurology-neurosurgery team and care unit. METHODS During the 12-month period of October 2000 to September 2001, we collected data on 179 patients consecutively(More)
BACKGROUND Intracranial arterial lesions are important causes of ischemic stroke, particularly in the Asian population. Of the intracranial lesions, the etiology of isolated anterior cerebral artery (ACA) territory infarction is not fully elucidated. The purpose of this study was to determine the etiological and clinical characteristics of patients with(More)
BACKGROUND/AIMS The aims of this study were to determine the differences in clinical characteristics and the risk of ischemic stroke between patients with transient ischemic attack (TIA) attributable to extracranial carotid and intracranial artery occlusive lesions. METHODS Among 445 patients admitted to our stroke care unit within 48 h of TIA onset(More)
Limited evidence exists on the relationships between severity of white-matter lesions (WMLs) and cerebral hemodynamics in patients without major cerebral artery disease. To examine changes of cerebral blood flow (CBF), oxygen metabolism, and vascular reserve capacity associated with severity of WML in patients with lacunar stroke, we used a positron(More)
OBJECTIVES The purpose of this study was to elucidate the factors that correlate with unfavorable outcomes and to develop a simple validated model for assessing risk of unfavorable outcomes in patients with minor ischemic stroke. METHODS The derivation cohort included 1,313 patients hospitalized within 72 hours after onset with an initial NIH Stroke Scale(More)
BACKGROUND The purpose of this study was to elucidate the incidence and predictors of ischemic stroke or recurrent transient ischemic attack (TIA) during acute hospitalization in patients with TIA. METHODS We carried out a multicenter retrospective study to clarify the characteristics of in-patients with TIA. The subjects of this study were TIA patients(More)
BACKGROUND There is little information about intracranial atherosclerotic disease (ICAD) and extracranial atherosclerotic disease (ECAD) in patients with acute spontaneous intracerebral hemorrhage (ICH). The purpose of the present study was to elucidate the prevalence of and the factors that correlate with ICAD and ECAD in patients with ICH. METHODS A(More)
BACKGROUND AND PURPOSE The Ministry of Health, Labor, and Welfare of Japan approved the use of recombinant tissue-type plasminogen activator (rt-PA) for the treatment of acute ischemic stroke in October 2005. The impact of the regulatory approval of rt-PA on the processes of acute stroke management was examined. METHODS A prospective, multicenter,(More)
BACKGROUND Symptoms of transient ischemic attack (TIA) persist on arrival and subsequently resolve in some patients admitted to hospitals early after onset. Differences in clinical characteristics between patients with acute TIA whose symptoms do and do not persist on arrival remain unclear. METHODS We retrospectively extracted data of consecutive TIA(More)