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1.
目的 研究血管性认知功能障碍 (VCI)患者的神经心理学、影像学及事件相关电位的特点并探讨其意义。方法 对 78例VCI患者及 4 9名正常人进行中文版简易智能状态检查 (MMSE)量表、头颅CT、事件相关电位检查。结果  (1)VCI组MMSE总分 (2 4 .35± 3.2 8)分 ,与正常组 (2 5 .0 4± 5 .0 3)分比较差异无显著性(P >0 .0 5 ) ;地点定向、时间定向、短程记忆、计算能力、语言表达、言语复述、图形描画 7项亚项的评分均明显低于正常组 (均P <0 .0 5 )。 (2 )VCI患者脑萎缩明显 ,脑梗死灶位于额、颞叶者及多发性梗死患者MMSE评分降低更显著 (均P <0 .0 5 )。 (3)VCI患者P3 0 0 潜伏期与正常组相比显著延长 (P <0 .0 5 ) ,P3 0 0 潜伏期与MMSE评分呈负相关 (r=- 0 .6 1,P <0 0 5 )。结论 MMSE量表中认知功能亚项的测评 ,有利于早期发现VCI患者的认知功能障碍 ,脑萎缩及脑梗死灶的部位和数目与VCI的程度有关 ;P3 0 0 潜伏期的检测对于早期发现VCI患者的认知障碍及其程度有重要价值。  相似文献
2.
目的 探讨蒙特利尔认知评估量表(MoCA)识别首次卒中后轻度血管性认知障碍(mVCI-FS)的作用,并与简易智能精神状态量表(MMSE)比较. 方法 选取mVCI-FS患者60例.首次卒中后非血管性认知障碍(nVCI-FS)25例,于发病后(12+1)周由不知情的神经科医师进行MoCA及MMSE评估. 结果 MoCA总平均分为(19.78±4.573)分,MMSE为(25.48±3.148)分,偏相关分析间.r=9,P=0.000.MoCA除计算力和言语流畅性外,其余各项在mVCI-FS和nVCI-FS间差异均有统计学意义(P<0.05);MMSE的即刻记忆、计算力、命名和阅读理解在2组间差异无统计学意义(P>0.05).应用ROC曲线和Youden指数最大值初步确定MoCA识别mVCI-FS与nVCI-FS的最佳分界值为21分.以21分为分界值.MoCA筛查mVCI-FS的敏感度和特异度分别为84.6%和76.0%,明显优于MMSE(敏感度59.6%和特异度57.7%),差异有统计学意义(P<0.05). 结论 初步确定MoCA识别mVCI-FS与nVCI-FS的最佳分界值为21分.MoCA筛查mVCI-FS的敏感度和特异度均高,是一种有效的mVCI.FS筛查量表;MMSE对mVCI.FS的敏感度低,识别mVCI-FS的作用有限.  相似文献
3.
BACKGROUND AND PURPOSE: There is a need for empirical studies to define criteria for vascular cognitive impairment (VCI) subtypes. In this paper, we report the predictive validity of a subtype classification scheme based on clinical and radiographic features. METHODS: Nine Canadian memory clinics participated in the Consortium to Investigate Vascular Impairment of Cognition. This cohort consisted of 1347 patients, of whom 324 had VCI, and was followed for up to 30 months. RESULTS: Clinical and neuroimaging features defined three subtypes: vascular cognitive impairment, no dementia, (n=97), vascular dementia (n=101) and mixed neurodegenerative/vascular dementia (n=126). Any ischemic lesion on neuroimaging increased the odds (odds ratio=9.31; 95% confidence interval 6.46, 13.39) of a VCI diagnosis. No VCI subtype, however, was associated with a specific neuroimaging abnormality. Compared to those with no cognitive impairment, patients with each VCI subtype had higher rates of death and institutionalization (hazard ratio for combined adverse events=6.08, p<0.001). CONCLUSIONS: Both clinical features and radiographic features help establish a diagnosis of VCI. The outcomes of VCI subtypes, however, are more strongly associated with clinical features than with radiographic ones.  相似文献
4.
血管性痴呆和血管性认知障碍的临床研究进展   总被引:3,自引:1,他引:2  
冯涛 《中国卒中杂志》2006,1(10):736-740
血管性认知障碍和痴呆是认知障碍和痴呆领域以及脑血管病领域研究方面的交叉点。本文综述了血管性痴呆和认知障碍的定义、诊断标准和药物治疗进展。在诊断方面重点介绍了血管性痴呆各个亚型的临床特点。在治疗方面重点介绍了血管性痴呆和认知障碍的胆碱能递质代谢障碍以及胆碱酯酶抑制剂治疗的进展。  相似文献
5.
血管性认知功能障碍患者血脂代谢的研究   总被引:3,自引:0,他引:3  
目的研究血管性认知功能障碍(VCI)患者血脂代谢的变化。方法测定206例VCI患者和325例年龄相匹配的正常对照者血清总胆固醇(TC)、甘油三脂(TG)、高密度脂蛋白(HDL)、低密度脂蛋白(LDL)水平。结果VCI组患者血清中TC、TG、HDL、LDL的水平分别为(5.52±1.14)mmol/L、(1.59±0.47)mmol/L、(1.08±0.35)mmol/L、(3.48±0.86)mmol/L,而正常老年人中相应指标分别为(4.97±1.09)mmol/L、(1.28±0.45)mmol/L、(1.12±0.36)mmol/L、(2.96±0.81)mmol/L,其中VCI组TC、LDL、TG均明显高于对照组,差异有显著性(P<0.05),而HDL在两组间比较差异则无显著性(P>0.05)。结论VCI患者存在明显的脂质代谢紊乱,TC、LDL、TG可能对VCI的发病有一定的影响,而HDL与VCI发病可能无关联。  相似文献
6.
BACKGROUND AND PURPOSE: Empirical studies to clarify the outcomes in Vascular Cognitive Impairment (VCI) are needed. We compared cognitive, functional, and behavioural outcomes in patients with VCI to patients with no cognitive impairment (NCI), and Alzheimer's disease (AD). METHODS: Secondary analysis of the Consortium to Investigate Vascular Impairment of Cognition (CIVIC), a multi-centre Canadian memory clinic 30-month cohort study. RESULTS: Of 1347 patients, 938 were eligible for follow-up, of whom 239 (24.5%) were lost and 29 (3%) had died. Of the remaining 697 patients, 125 had NCI, 229 had VCI, and 343 had AD at baseline. Compared to people with NCI, of whom 20-40% showed progression based on cognitive and functional measures, those with VCI were more likely to progress (50-65%), as were people with AD (50-80%) (p<0.01). More people with VCI showed progression of affective symptoms (30%) than those with NCI (12%) or AD (15% p<0.01). Progression of impaired judgment (rated clinically) in VCI (15%) was similar to AD (11%) but more common than in NCI (4%, p<0.01). CONCLUSIONS: Most people with VCI show readily detectable progression by 30 months. Depressive symptoms were more common and more progressive in VCI than in Alzheimer's disease, whereas clinical evidence of progressive executive dysfunction was common in both AD and VCI.  相似文献
7.
脑梗死后血管性认知障碍的相关因素   总被引:2,自引:0,他引:2  
目的探讨脑梗死(CI)后血管性认知障碍(VCI)的影响因素。方法对76例经头部CT或MRI确诊的脑梗死患者和对照组进行比较,采用国际通用的简易智能状态检查量表(MMSE)、日常生活行为量表(ADL)和画钟测验(CDT)进行神经心理检查。结果 CI组患者认知功能障碍发生率明显高于对照组,CI组MMSE、ADL和CDT评分与对照组比较差异具有显著性。脑梗死患者中有卒中史组与无卒中史组比较,高血压组与血压正常组比较,同型半胱氨酸升高组与同型半胱氨酸正常组比较,差异具有显著性(均P<0.05)。结论脑梗死患者VCI发生率明显高于对照组,VCI发生与卒中史、高血压、糖尿病及血清同型半胱氨酸有关。  相似文献
8.
缺血性脑血管病认知推理障碍的研究   总被引:2,自引:1,他引:1  
目的 探讨缺血性脑血管病患者认知推理能力损害情况,为血管性认知障碍的早期诊断要点提供线索.方法 利用神经心理学检查方法 对75例缺血性脑血管病患者和30例健康对照者进行简明精神智能量表(MMSE)、瑞文标准推理测验联合型(CRT)检查.结果 缺血性脑血管病组的MMSE总分和CRT检查得分明显差于健康对照组(P<0.01).75例缺血性脑血管病组出现推理障碍者54例(72%).MMSE得分高者对应的瑞文推理测验IQ得分也高,相关分析呈正相关(r=0.647, P<0.01).结论 缺血性脑血管病后出现推理障碍相当普遍,不容忽视.  相似文献
9.
Summary. Background: Few studies exist on ERPs and patients with subcortical vascular cognitive impairment (SVCI). This latter is a quite homogeneous subtype of vascular dementia whose cognitive profile is quite different from that of Alzheimer disease (AD). Aims: The present study aims at comparing the ERPs profile both in patients with SVCI and in patients with AD. Subjects and methods: ERPs and psychometric tests were collected from 39 healthy elderly controls, 51 patients with SVCI and 43 patients with AD. Subjects mentally count high pitched target tones that were randomly intermixed with low pitched frequent tones. We measured ERPs latencies (N1, P2, N2 and P3), and interpeak latencies (N1–P3, N1–P2, N1–N2). Results: Grand averaged potentials in SVCI showed a significant increase of P3 latency. AD patients showed a prolongation of N1, P2, N2, P3 latencies. As far as interpeak latencies are concerned, SVCI patients showed a significant prolongation of N1–P3, AD patients had a significant increase of N1–N2, and N1–P3 intervals. When all patients were considered as a single group, correlation of neuropsychological tests scores showed a significant negative relationship between P300 latency and, respectively, Mini Mental Status Examination, auditive and visual span forward. In both groups, ERPs latency sensitivity, was low, whilst specificity values were quite high. Conclusions: Our finding suggest that these two dementing diseases have different electrophysiologic features that may be related to their specific underlying pathogenetic mechanism; in particular, we hypothesise that, differently from AD, P300 latency prolongation characterizes the early stage of SVCI. So, this ERPs approach could be helpful to detect early alterations of the attentional/working-memory functions in patients with subcortical ischaemic vascular disease.  相似文献
10.
脑小血管病病理生理机制研究进展   总被引:1,自引:0,他引:1  
脑小血管病(cerebral small vessel disease,CSVD)是由于不同原因的脑小血管或微小血管发生病理改变后导致的疾病,是临床上引起血管性认知功能障碍(vascular cognitive impairment,VCI)的重要病因。充分认识CSVD的发生、发展,将为预防VCI提供可能。本文从脑小血管病的病理生理机制的研究进展进行综述,以期为临床实践提供思路。  相似文献
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