缺血性卒中病因分型法在中国卒中人群应用效果的比较_中国缺血性卒中分型.docx
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1、缺血性卒中病因分型法在中国卒中人群应用效果的比较_中国缺血性卒中分型 中图分类号:R743 文献标识码 :A 文章编号:1009_816X(2010)02_0088_03 Comparative Study of Two Etiological Classifications of Ischemic Stro ke in Chinese Stroke Patients.HAN Zhao, ZANG Qiu_ling, WANG Ping_li, et al.Division of S troke Medicine, First Affiliated Hospital, Wenzhou Medi
2、cal College, Zhejiang 325 000, China Abstract ObjectiveTo evaluate inter_investigator agreement between TOAST Clas sification proposed by Adams et al in 1993 and a new Classification proposed bySang Won Han et al in 2007 and to study the difference of the proportion for eac h subtype in Chinese isch
3、emic stroke patients diagnosed by the two Classificatio ns respectively.Methods395 Consecutive cases with acute ischemic stroke were e nrolled in this study, their etiological subtypes were diagnosed at discharge byone neurologist according to the two Classifications and 2 test was used tocompare th
4、e difference of the proportion for each subtype. Meanwhile,two neuro logists independently diagnosed subtype of 20 cases selected randomly and Kappaanalysis was used to evaluate inter_investigators agreement.Results(1) Two inves tigators have agreement with the stroke subtype diagnosis in 17 out of
5、20 casesby TOAST criteria (k=0.78) and in 18 out of 20 cases by Sang Won Han et al newc lassification system(k=0.93). (2) According to TOAST classification, the consti t uent ratio of subtypes for all enrolled cases was as following: stroke of undete rmined etiology 39.0%, Small_artery disease 29.6%
6、, Large_artery atherosclerosi s21.3%, cardioembolism 8.9%, Stroke of other determined cause 1.3%; By the newcl assification system of Sang Won Han, the constituent ratio subtypes was as follo wing: atherothrombosis 44.6%, Stroke of undetermined etiology 25.1%, small_art ery disease 23.3%, cardioembo
7、lism 5.8%, stroke of other determined cause 1.3% . ConclusionsBoth of the two classifications have excellent agreement. Compared withTOAST classification, the new classification proposed by Sang Won Han has highe r agreement and less proportion of Stroke of undetermined etiology, and the prop ortion
8、 of atherothrombosis type increased. Key words Ischemic stroke; TOAST classification; Constituentratio; Agreement 不同病因的缺血性脑卒中患者,其治疗和二级预防的策略不同1。目前国际上应 用较多的缺血性脑卒中的病因分型是1993年Adams等在类肝素药物ORG10172治疗急性卒中(T he Trial of Org10172 in Acute Stroke Treatment)的临床试验中制订的TOAST分型 2。由于该 分型法过分依靠协助检查的结果而限制了其在临床上的早期运用,
9、该分型方法一样性不高和不明缘由型的比例较高。2007年韩国学者Sang Won Han等在 TOAST分型的基础上提出了一种新的病因分型方法,该分型法结果一样性较高,且不明原 因型的比例削减3。本文以TOAST分型为比照,评价韩国学者Sang Won Han等人提 出的新病因分型法在中国卒中人群中运用时的一样性,以及应用这两种分型法诊断 的各病因学亚型的差异。 1 资料与方法 1.1 一般资料: 收集2008年1月至7月间进入我院且发病时间在7天之内的395例缺血性卒中住院患者。其 中男240例,女155例,年龄3195(平均6611.86)岁。入选患者均通过头颅CT或MRI确诊 ,相继完成了
10、血液学、心电图、心超、血管影像(如CTA、MRA、DSA)等病因筛查,其中82 .5%(326例)完成了MRI/DWI,心脏超声(包括经胸和经食道)和颈椎动脉彩超完成率分别 为57.9%和83.5%,TCD完成率为83.5%,CTA/MRA和DSA完成率分别为43.8%和4.1%。 1.2 诊断标准: 1.2.1 缺血性卒中:符合1989年WHO脑卒中的诊断标准4,且经头颅CT或MRI证 实;若症状体征在24小时内消逝,但影像学(CT或MRI)已显示出病灶的患者,亦诊断为缺 血性脑卒中5。 1.2.2 TOAST病因分型,分为5个亚型:(1)大动脉粥样硬化(Large_artery ather
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