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題 名 | Silent Infarction in Patients with First-ever Stroke=初次中風病人頭部影像學上之無症狀腦病變 |
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作 者 | 翁埈德; 陳文彬; 宋昇峰; 吳啟順; 許永居; | 書刊名 | Acta Neurologica Taiwanica |
卷 期 | 16:4 2007.12[民96.12] |
頁 次 | 頁221-225 |
分類號 | 415.922 |
關鍵詞 | 中風; 血管影像; Silent cerebral infarction; Stroke; Computed tomography; Magnetic resonance imaging; Transient ischemic attack; |
語 文 | 英文(English) |
英文摘要 | Background / Purpose: Silent infarcts (SIs) are commonly found in brain computed tomography (CT) or magnetic resonance imaging (MRI) of elderly subjects. However, the prevalence of this silent infarction (SI) and risk factors for this entity are not entirely known. This study was aimed to evaluate the prevalence of silent infarcts in brain CT and risk factors in patients admitted with first-ever ischemic stroke or transient ischemic attack (TIA). Methods: From July 2003 to May 2005, a prospective study was performed for 446 patients admitted to our neurology service with a diagnosis of TIA or stroke. Two hundred and twenty-six patients did not have a history of stroke or TIA prior to the event. All patients received a brain CT on the day when they arrived at the hospital. Risk factors that are monitored included age, history of hypertension, diabetes mellitus, cardiovascular disease, stroke, smoking and alcohol use. Cholesterol and triglyceride levels were measured on the second day of admission. Results: The results showed that the frequency of SI among 226 patients with first-ever stroke or TIA was 20%. Most of the SIs were small and deep. Small-artery disease was more frequently observed in patients with silent infarction. Age, hypertension, diabetes mellitus, hypercholesterolemia, hypertriglyceridemia, alcohol habit, smoking and atrial fibrillation were not significantly different between patients with silent infarct and patients without silent infarct. Conclusions: The study shows small-artery disease is more frequent in patients with silent infarction. The clinical significance of silent infarct needs further study. |
本系統中英文摘要資訊取自各篇刊載內容。