缺血性脑卒中与血浆纤维蛋白原及活化血小板的相关性研究

目的探讨缺血性脑卒中与血浆纤维蛋白原及活化血小板之间的关系。方法检测168例缺血性脑卒中患者(急性期和恢复期)及40名正常对照者血浆中纤维蛋白原浓度及活化血小板的分子标志物P-选择素(CD_(62)P)、溶酶体蛋白(CD_(63))的表达,并与神经功能缺损程度进行相关分析。结果(1)缺血性脑卒中患者急性期与恢复期纤维蛋白原浓度及CD_(62)P、CD_(63)表达显著高于对照组(P＜0．01);(2)缺血性脑卒中组急性期患者按牛津郡社区卒中计划(OCSP)分为4个亚型,纤维蛋白原浓度及CD_(62)P、CD_(63)表达在完全前循环梗死(TACI)组明显高于部分前循环梗死(PACI)组、后循环梗死(POCI)组及腔隙性梗死(LACl)组(P均＜0．01),PACI组及POCI组明显高于LACI组(P均＜0．01),而PACI组与POCI组间差别无显著性意义(P＞0．05);(3)纤维蛋白原浓度及CD_(62) P、CD_(63)表达与神经功能缺损程度评分呈显著正相关(r分别为0．781、0．843、0．817,P均＜0．01)。结论缺血性脑卒中患者急性期纤维蛋白原浓度及CD_(62) P、CD_(63)表达显著升高,纤维蛋白原、CD_(62) P、CD_(63)可能参与了缺血性脑损伤的病理过程,并间接反映病情程度;恢复期纤维蛋白原浓度及CD_(62) P、CD_(63)表达仍高于对照组,提示恢复期患者仍需积极治疗。     

OCSP分型与脑梗死急性期神经功能缺损和预后的相关性研究

目的研究脑梗死急性期OCSP分型与神经功能缺损和预后的关系.方法连续收集首次发病的急性脑梗死(发病时间在10 d以内)患者160例,按OCSP分型分为完全前循环梗死(TACI)、部分前循环梗死(PACI)、腔隙性脑梗死(LACI)、后循环梗死(POCI),比较斯堪的纳维亚神经功能缺损评分,入组后30 d、6个月的患者病死率、脑卒中复发率(包括缺血性和出血性)和日常生活能力.结果急性期神经功能缺损以TACI最重,POCI、PACI次之,LACI最轻,入组后30 d的患者病死率为TACI＞POCI＞PACI＞LACI,6个月时病死率仍然是TACI＞POCI＞PACI＞LACI,而6个月内脑卒中复发率是PACI＞POCI＞LACI＞TACI,存活6个月者残疾程度TACI最重(重度依赖),其余3个亚型均为轻度依赖.结论脑梗死急性期不同OCSP分型之间的脑梗死患者急性期神经功能缺损、30 d及6月时预后存在差异,不同的OCSP分型可以反映脑梗死急性期神经功能缺损的严重程度和预后,OCSP分型有利于脑梗死急性期治疗和康复方法的选择.     

血小板激活及血小板参数变化在脑梗死发病机制中的作用

目的研究血小板激活以及血小板参数变化在脑梗死发病机制中的作用。方法采用流式细胞术测定急性脑梗死患者168例和健康对照者40名外周血P选择素(CD62p)、溶酶体蛋白(CD63)的阳性表达率,同时测定血小板计数(PLT)、血小板平均体积(MPV)和血小板最大聚集率(MAR)。并进行比较及相关因素分析。结果(1)脑梗死患者CD62p、CD63及MPV、MAR明显高于健康对照组,并且上述指标急性期均高于恢复期(均P<0·01);(2)全前循环梗死(TACI)亚型的脑梗死患者CD62p、CD63及MPV、MAR显著高于部分前循环梗死(PACI)、后循环梗死(POCI)及腔隙性梗死(LACI)亚型,在PACI及POCI亚型中上述各测定值较LACI亚型显著增高,差异均具有显著性(均P<0·01);而在PACI及POCI亚型之间差异并无显著性(P>0·05);(3)PLT在脑梗死患者急性期、恢复期与健康对照组之间以及牛津郡社区卒中项目(OCSP)各亚型之间差异无显著性(均P>0·05)。(4)CD62p、CD63呈显著正相关(r=0·826,P<0·01),且与MPV及MAR亦呈明显正相关(r=0·703、0·698,均P<0·01);但与PLT之间无相关性(均P>0·05)。结论脑梗死患者血小板的大量激活及其体积和最大聚集率的升高参与了脑梗死的病理过程,监测MPV和MAR较PLT更能反映脑梗死的病情程度,为应用抗血小板聚集药物提供依据。     

血清缺血修饰清蛋白与急性脑梗死的相关性研究

目的探讨血清缺血修饰清蛋白与急性缺血性脑卒中各亚型及患者早期预后的相关性。方法选取我院2013-04-2016-03收治的符合研究标准的104例急性缺血性脑卒中患者为研究组,另选取同期门诊体检健康者54例为对照组。根据英国牛津郡社区脑卒中分型(OCSP)标准将104例急性缺血性脑卒中患者分为腔隙性梗死(LACI)组(n=25)、后循环梗死(POCI)组(n=25)、部分前循环梗死(PACI)组(n=28)、完全前循环梗死(TACI)组(n=26)。抽取各组血清进行检测,对比不同亚型急性缺血性脑卒中患者血清缺血修饰清蛋白水平,并与对照组比较,统计不同亚型急性缺血性脑卒中患者治疗前后神经功能缺损评分(NIHSS)及日常生活活动能力评分(Barthel指数)变化情况。结果 LACI组、POCI组、PACI组、TACI组血清缺血修饰清蛋白水平均明显高于对照组,差异有统计学意义(P0.05);TACI组血清缺血修饰清蛋白水平明显高于LACI组、POCI组、PACI组,差异有统计学意义(P0.05);治疗前各组NIHSS评分及Barthel指数对比差异无统计学意义(P0.05),治疗后各组均较治疗前改善,且TACI组与其余3组对比差异有统计学意义(P0.05)。结论血清缺血修饰清蛋白作为急性缺血性脑卒中分型参考指标,其表达水平与患者预后具有密切相关性,血清缺血修饰清蛋白水平越高,预后效果越差。     

急性脑梗死不同临床亚型患者血清髓鞘碱性蛋白的变化

目的 观察不同临床类型急性脑梗死(ACI)患者血清髓鞘碱性蛋白(MBP)水平变化,探讨MBP与美国国立卫生研究所卒中量表(NIHSS)评分之间的关系.方法 208例ACI患者按照牛津郡社区卒中计划(OCSP)分型标准分为4组并行NIHSS评分,采用ELISA法检测血清MBP的含量;观察不同亚型ACI患者MBP含量的变化,分析MBP与NIHSS评分的相关性.结果 (1)本组OCSP各亚型构成比:完全前循环型(TACI) 13.46％、部分前循环型(PACI)30.29％、后循环型(POCI) 19.71％、腔隙性梗死型(LACI)36.54％;(2)OCSP分型中TACI、PACI及POCI亚型MBP含量升高,LACI变化不明显.与LACI比较,TACI、PACI及POCI有显著性差异(P＜0.05);(3)TACI、PACI中血清MBP含量与相应时间段NIHSS评分具有有相关性,相关系数为0.62、0.60 (P＜0.05);POCI和LACI中MBP与NIHSS之间相关性较差.结论 MBP随OCSP亚型的不同而变化.TACI、PACI、POCI亚型的缺血性卒中患者血清MBP可以作为病情、预后判断的一个参考依据.     

急性脑梗死患者临床分型及梗死面积与心电图改变的关系

目的 探讨急性脑梗死患者临床分型和梗死面积与心电图(ECG)改变的关系.方法 给216例急性脑梗死患者进行ECG检查,按牛津郡社区卒中项目(OCSP)分型和梗死面积分型,对各组患者的ECG检查结果进行分析比较.结果 OCSP分型完全前循环梗死(TACI)组、部分前循环梗死(PACI)组、后循环梗死(POCI)组和腔隙性梗死(LACI)组患者的ECG异常率分别是: 95. 5%、80.4%、62.5%和48.5%,TACI组和PACI组明显高于LACI组(P＜0.05～0.01);大中面积梗死组(83.7%)的ECG异常率明显高于小面积梗死组(60.4%)和腔隙性梗死组(53.2%)(P＜0.05～0.01);小面积梗死组的ECG异常率高于腔隙性梗死组(P＜0.05).OCSP和梗死面积分型各亚型组出现ST-T改变和心律失常的比率差异有统计学意义(P＜0.05～0.01).结论 急性脑梗死临床分型病情重和梗死面积大的患者ECG异常率高.     

急性脑梗死患者血小板表达血小板内皮细胞黏附分子-1、P选择素的改变及其意义

目的观察急性脑梗死(AC I)患者血小板表达血小板内皮细胞黏附分子-1(CD31)、P选择素(CD62p)的改变及其意义。方法采用全血流式细胞术测定53例AC I患者发病48 h内血小板CD31、CD62p的表达水平,并与有脑梗死易患因素组及健康对照组比较。结果AC I组血小板表达CD31、CD62p[(90.91±15.39)%,(7.00±2.96)%]明显高于易患因素组和健康对照组(均P<0.001);AC I组中合并高血压或糖尿病患者血小板CD62p表达高于无高血压和糖尿病的患者(均P<0.01);血小板CD31、CD62p的表达与脑梗死体积正相关(r=0.39,P<0.05;r=0.63,P<0.01)。结论AC I发病后血小板表达CD31、CD62p显著增高,其表达程度与脑梗死体积以及是否合并高血压或糖尿病有关。     

吞咽功能训练联合低频电刺激术治疗缺血性卒中吞咽障碍的疗效观察

目的探讨吞咽功能训练联合低频电刺激术对缺血性卒中患者吞咽障碍的疗效。方法共68例缺血性卒中合并吞咽障碍患者,分别予常规吞咽功能训练(包括吞咽训练和进食策略训练,对照组)及常规吞咽功能训练联合低频电刺激术(联合治疗组),于治疗前和治疗后15 d,采用视频透视吞咽检查(VFSS)和标准吞咽功能评价量表(SSA)评价患者吞咽功能。结果 34例予以常规吞咽功能训练,英国牛津郡社区脑卒中项目(OCSP)分型完全前循环梗死型(TACI型)12例、部分前循环梗死型(PACI型)8例、后循环梗死型(POCI型)10例、腔隙性梗死型(LACI型)4例;34例予以常规吞咽功能训练联合低频电刺激术,OCSP分型TACI型10例、PACI型7例、POCI型11例、LACI型6例。与治疗前相比,两组患者治疗后VFSS评分增加(P=0.003,0.000)、SSA评分减少(P=0.003,0.000);与对照组相比,联合治疗组患者VFSS评分增加(P=0.004)、SSA评分减少(P=0.020)。结论吞咽功能训练联合低频电刺激术对急性缺血性卒中患者吞咽障碍具有较好疗效,优于单纯吞咽功能训练。     

Guillain-Barré综合征患者B淋巴细胞辅助受体CD l9表达的研究

目的本研究通过检测Guillain-Barre综合征(GBS)患者外周血单个核细胞CD l9蛋白的表达,探讨CD l9与GBS及其严重程度之间的关系。方法利用流式细胞术检测GBS组(36例)和正常对照组(20例)的CD l9蛋白表达,按病程将GBS组分为急性期亚组与恢复期亚组,并分析与疾病严重程度之间的关系。结果与正常对照组221±78个比较,GBS组742±128个B细胞数量显著升高,差异有统计学意义(P<0.01)。与正常对照组62.21±7.85%比较,GBS组83.92±6.23%CD l9+CD20+显著升高,差异有统计学意义(P<0.01)。与恢复期GBS组686±108个比较,急性期GBS组810±124个B细胞数量无明显差异(P>0.05)。与恢复期GBS组87.27±6.04%比较,急性期GBS组81.20+5.25%CD l9+CD20+无明显差异(P>0.05)。与轻症GBS组632+68个比较,重症GBS组797+130个B细胞数量无明显差异(P>0.05)。与轻症GBS组82.53+5.03%比较,重症GBS组85.84+6.77%CD l9+CD20+无明显差异(P>0.05)。结论 CD l9在GBS中表达显著升高,但与病程和病情严重程度无关。     

Guillain-Barre综合征患者B淋巴细胞辅助受体CD22、CD72表达的研究

目的探讨Gu illain-Barre综合征(GBS)患者外周血B淋巴细胞辅助受体CD22、CD72表达及其与GBS病程和病情的关系。方法 36例GBS患者(GBS组)按病程及病情分为急性期亚组与恢复期亚组和轻症亚组与重症亚组,应用流式细胞术检测外周血B淋巴细胞CD22及CD72蛋白表达,比较CD22与CD72蛋白在不同亚组间的表达;并与正常对照组(20人)比较。结果 B细胞数量GBS组[(606±118)个]较正常对照组[(248±92)个]明显升高,CD72+CD19+阳性细胞率[(62.11±9.14)%]较正常对照组[(69.72±11.42)%]明显降低(均P<0.01);CD22+CD19+阳性细胞率两组间差异无统计学意义。GBS组中,急性期亚组[(682±91)个]B细胞数量较恢复期亚组[(550±111)个]明显升高,CD72+CD19+阳性细胞率急性期亚组[(57.79±7.69)%]较恢复期亚组[(68.14±7.58)%]明显降低(均P<0.01);CD22+CD19+阳性细胞率两亚组间差异无统计学意义;重症亚组[(685±116)个]较轻症亚组B细胞数量[(561±96)个]明显升高(...     

急性脑梗死症状学、影像学及病因学分类之间的关系研究

目的：探讨急性脑梗死症状学、影像学及病因学分类之间的关系。方法：对125例起病48小时内的急性脑梗死患者进行3步骤分类诊断，第一步为症状学分类：(1)完全前循环梗死(TACI)；(2)部分前循环梗死(PACI)；(3)腔隙性梗死(LACI)；(4)后循环梗死(POCI)。第二步为影像学分类：(1)前循环皮质梗死或纹状体内囊区梗死(C0)；(2)低灌流梗死(LFI)；(3)深穿技区的皮质下小梗死(SSI)；(4)除SSI以外的后循环梗死(PCI)；(5)无异常发现(N0)。第三步为病因学分类：(1)大动脉粥样硬化(LAA)；(2)心源性栓塞(CE)；(3)小动脉病(SAD)；(4)其它病因、病因不明或混合性病因。结果：在症状学分类诊断为TACI、PACI和POCI的患者中，CT或MRI所示病灶与其临床症状的对应性良好，但只有67．3％的LACI影像学分类为SSI。大多数TACI患者是由CE造成的。在PACI患者中，CE和LAA的数量相同。只有57．7％的LACI患者被划分为SAD，而28．8％被划分为LAA。用LACI和SSI来预测SAD的阳性预测率较高(78％)。POCI的病因诊断多种多样。结论：除LACI以外，症状学分类与影像学分类的对应性良好，用症状学分类可预测TACI和PACI患者的病因分类，但难以预测POCI患者的病因分类。不少的LACI是由LAA造成的。     

Correlation between symptomatic, radiological and etiological diagnosis in acute ischemic stroke

OBJECTIVES: The aim of this study was to correlate with the symptomatic, radiological and etiological diagnosis in acute ischemic stroke. SUBJECTS AND METHODS: Two hundred and fifty patients with first-ever ischemic stroke within 24 h of onset were prospectively studied with 3-step diagnoses: 1) symptomatic diagnosis based on the Oxfordshire Community Stroke Project criteria (OCSP), 2) radiological diagnosis (CT or MRI) and 3) etiological diagnosis based on the Lausanne Stroke Registry criteria. RESULTS: Most of the patients with symptoms of total anterior circulation infarcts (TACI), partial anterior circulation infarcts (PACI) and posterior circulation infarcts (POCI) had corresponding lesions on CT or MRI, while only 68% of lacunar infarcts (LACI) patients had small subcortical infarction (SSI). More than 60% of patients with TACI were classified into cardioembolism in the third diagnosis, while the etiology of PACI was either CE or large-artery atherosclerosis (LAA) in equal numbers. Only 58% of LACI patients were classified into small-artery disease (SAD) and 29% of them (30 cases) into LAA, of which 23 patients had lesions other than SSI. The positive predictive value of SAD in the combination of LACI and SSI was 0.78. The etiology of POCI was variable. CONCLUSION: Except for LACI, the symptomatic classification by OCSP corresponds well to the radiological diagnosis. The etiological diagnosis can be predicted by OCSP in TACI and PACI, but it is hard in POCI, and a number of LACI are due to LAA.     

Relationship between subtypes of MRI-confirmed acute ischemic stroke based on OCSP and TOAST classifications

BACKGROUND： Two classification systems exist for subtypes of acute cerebral infarction. One was developed for the Trial of Org 10172 in Acute Stroke Treatment （TOAST）, based primarily on etiology. The other is the Oxfordshire Community Stroke Project （OCSP）, based on clinical features.
OBJECTIVE： To evaluate the relationship between OCSP and TOAST classifications in terms of stroke location and etiology in 126 patients with acute ischemic stroke confirmed by transcranial magnetic resonance imaging （MRI）.
DESIGN, TIME AND SETTING： Retrospective case analysis. Transcranial MRI, diffusion weighted imaging, and magnetic resonance angiography were performed in 126 patients with acute stroke during the first 48 hours following admission to the Department of Neurology, Navy General Hospital of Chinese PLA.
PARTICIPANTS： A total of 126 patients with acute stroke, comprised of 71 males and 55 females, admitted to the Navy General Hospital of Chinese PLA between December 2005 and April 2006 were included.
METHODS： Of 126 patients with acute stroke, 13 exhibited total anterior circulation infarcts （TACI）, 51 had partial anterior circulation infarcts （PACI）, 28 suffered posterior circulation infarcts （POCI）, and 34 had lacunar infarcts （LACI） based on OCSP classification. However, according to TOAST classification, 19 cases were a result of large-artery atherosclerosis, 32 by cardioembolism, 36 by small-vessel occlusion, 1 by stroke of other determined etiology, and 38 by stroke of undetermined etiology.
MAIN OUTCOME MEASURES： The corresponding relationship of the subtypes of acute stroke based on OCSP and TOAST.
RESULTS： Of patients with TACI, 8 （61.5%） were caused by cardioembolism. Of patients with PACI, 16 （31.4%） were caused by large-artery atherosclerosis and 17 （33.3%） by cardioembolism. Of patients with POCI, 12 （42.8%） were a result of small-vessel occlusion. Of patients with LACI, 17 （50.0%） were caused by hypertension and arteriolar sclerosi     

Oxfordshire Community Stroke Project classification but not NIHSS predicts symptomatic intracerebral hemorrhage following thrombolysis

BackgroundThe Oxfordshire Community Stroke Project (OCSP) classification is a simple tool to categorize clinical stroke syndromes. We compared the outcomes of stroke patients after intravenous thrombolysis stratified by the baseline National Institutes of Health Stroke Scale (NIHSS) score or by the OCSP classification.MethodsWe assessed the safety of thrombolysis in consecutive stroke patients who received intravenous thrombolysis within 3 h after onset. The patients were grouped by the NIHSS score into mild to moderate stroke (≤ 20) and severe stroke (> 20), and also by the OCSP classification as having total anterior circulation infarcts (TACI), partial anterior circulation infarcts (PACI), posterior circulation infarcts (POCI), or lacunar infarcts (LACI). Symptomatic intracerebral hemorrhage (SICH) was used as the primary outcome.ResultsOf the 145 patients included in the study, 45 had a baseline NIHSS score > 20. Their stroke syndromes were as follows: 78 with TACI, 29 with PACI, 16 with POCI, and 22 with LACI. The proportion of SICH was comparable between patients with high or low NIHSS score (11.1% vs. 9.0%, P = 0.690). The chance of SICH was highest in patients with TACI (15.4%), followed by LACI (4.5%), PACI (3.4%), and POCI (0%). After adjustment for age, baseline glucose, and use of antiplatelet agents before admission, SICH was significantly increased in patients with TACI relative to those with non-TACI (odds ratio 5.92; 95% confidence interval 1.24–28.33, P = 0.026).ConclusionsThe OCSP clinical classification may help clinicians evaluate the risk of SICH following intravenous thrombolysis.     

Intracranial large artery disease among OCSP subtypes in ethnic South Asian ischemic stroke patients

The site of vascular stenosis correlates well with the Oxfordshire Community Stroke Project (OCSP) classification among Caucasians, but not among ethnic Chinese patients. We prospectively studied 205 consecutive ethnic South Asian ischemic stroke patients to investigate the prevalence of intracranial large artery disease determined by transcranial color-coded doppler and magnetic resonance angiography among OCSP subtypes. The distribution of OCSP subtypes was 7% total anterior circulation infarction (TACI), 17% partial anterior circulation infarction (PACI), 14% posterior circulation infarction (POCI) and 62% lacunar infarction (LACI). Significant intracranial large artery disease was common among all OCSP subtypes; 79% with TACI, 47% PACI, 65% POCI and 44% LACI. This is similar to ethnic Chinese data and is likely due to the predominance of intracranial disease over extracranial disease. Clinical axioms using OSCP subtypes based on Caucasian data may be misleading if applied to ethnic South Asians.     

急性缺血性脑卒中患者血小板膜糖蛋白的表达水平与临床伤残严重程度的相关性及其临床意义

目的 分析急性缺血性脑卒中患者血小板膜糖蛋白的表达水平与临床伤残严重程度的相关性及其临床意义。方法 选取本院神经内科2018年1月-2019年3月收治的120例急性缺血性脑卒中患者为研究对象,将其设定为观察组。另选取60例健康者为对照组,通过流式细胞术检测方法来检测2组研究对象的血小板膜糖蛋白CD31、CD62p、CD63以及PAC-1的表达水平,分析其与临床伤残严重程度的相关性。结果 观察组患者的血小板膜糖蛋白CD31、CD62p、CD63、PAC-1表达水平均高于对照组(P<0.05); 观察组患者血小板膜糖蛋白CD62p与PAC-1表达水平和临床伤残严重程度评分呈正相关(Pearson相关系数分别为0.178和0.241,P<0.05); CD31、CD62p和CD63的表达水平与不同神经功能缺损程度有关,其中中度和重度急性缺血性脑卒中患者的CD31、CD62p与CD63表达水平高于轻型患者(P<0.05)。结论 在急性缺血性脑卒中患者体内血小板的活化程度较健康者来说明显升高,血小板膜糖蛋白CD62p与PAC-1的表达水平对临床伤残程度有显著影响,可作为反映急性缺血性脑卒中患者病情变化和预测康复效果的指标。     

Relationship between pattern of intracranial artery abnormalities on transcranial doppler and Oxfordshire Community Stroke Project clinical classification of ischemic stroke

BACKGROUND AND PURPOSE: The Oxfordshire Community Stroke Project (OCSP) devised a simple classification for acute stroke based on clinical features only, which is of value in predicting prognosis. We investigated whether the pattern of intracranial vascular abnormalities is related to the clinical syndrome. METHODS: Patients with acute ischemic stroke were classified by a stroke physician as having total or partial anterior circulation infarct (TACI or PACI, respectively), lacunar infarct (LACI), or posterior circulation infarct (POCI). Color-coded power transcranial Doppler was done whenever possible. Intracranial arterial velocities were compared in the 4 subtypes of ischemic stroke after adjustment for age and time to transcranial Doppler. RESULTS: Middle cerebral artery velocity was abnormal (hyperemia, reduced velocity, occlusion, or focal stenosis) in 38 of 69 TACIs (55%), 50 of 171 PACIs (29%), and 20 of 236 LACIs or POCIs (8%) (P<0.001). Velocity in the A1 segment of the anterior cerebral artery was reversed in 12 of 69 TACIs (17%), 20 of 171 PACIs (12%), and 8 of 236 LACIs or POCIs (3%) (P<0.001). Basilar artery velocity was abnormal in 8 of 121 POCIs (7%) compared with 5 of 355 (1%) of the other subtypes (P=0.005). Vertebral artery velocity was abnormal (reduced velocity, occlusion, stenosis) in 20 of 121 POCIs (17%) compared with 20 of 355 others (6%) (P=0.01). CONCLUSIONS: Intracranial arterial abnormalities were related to OCSP clinical subtype. Therefore, it is possible to stratify patients according to OCSP classification in trials of new treatments in which treatment effectiveness may depend on the underlying pattern of arterial pathology and before any arterial imaging is available.