臨床神経学

第51回日本神経学会総会

<シンポジウム10―1>TIAの新しい概念と対策
TIAの新しい定義と概念

内山 真一郎

東京女子医科大学神経内科〔〒162―8666 東京都新宿区河田町8―1〕

new definition of transient ischemic attack (TIA) was proposed by the working group of the American Heart Association and the American Stroke Association in 2009. In this definition, TIA is defined as a transient episode of neurological dysfunction caused by focal brain, spinal cord, or retinal ischemia, without acute infarction. This definition is currently much argued, and has not yet been globally accepted. There would be no meaning to differentiate TIA from ischemic stroke only by the duration of symptoms. Because, TIA in acute setting and acute ischemic stroke share the same spectrum. Therefore, we proposed a new clinical concept termed acute cerebrovascular syndrome (ACVS), which includes acute TIA and acute ischemic stroke. Patients early after TIA are at high risk of stroke and thus should be immediately evaluated and treated as a medical emergency, that is, ACVS. An international multicenter cooperative registry study is ongoing in 5,000 patients with TIA or minor stroke within 7 days after the onset, who will be followed up for 5 years, involving Japanese patients.
Full Text of this Article in Japanese PDF (237K)

(臨床神経, 50:904−906, 2010)
key words:新定義,急性脳血管症候群,TIAクリニック,救急医療,国際登録観察研究

(受付日:2010年5月22日)