不同病因轻度认知障碍的神经心理学特征比较

被引:3
作者
周爱红
贾建平
闵宝权
杨培洁
机构
[1] 首都医科大学宣武医院神经内科
关键词
痴呆,血管性; 阿尔茨海默病; 认知障碍; 神经心理学测验;
D O I
暂无
中图分类号
R686 [筋腱、韧带、滑囊疾病及损伤];
学科分类号
1002 ; 100210 ;
摘要
目的明确皮质下小血管病导致的轻度认知障碍(mild cognitive impairment due tosubcortical small vessel disease,MCI-SSVD)和阿尔茨海默病源性 MCI(mild cognitive impairment causedby Alzheimer's disease,MCI-AD)的神经心理学特征,并进行比较,筛选出有效鉴别两者的认知测验。方法对45例 MCI-SSVD 患者、30例 MCI-AD 患者和61名健康对照者的5个认知域进行广泛测查,结果进行组间比较,应用逻辑回归分析筛查对鉴别 MCI-SSVD 和 MCI-AD 作用显著的测验。结果MCI-SSVD 组和 MCI-AD 组患者多个认知域都差于健康对照组,以言语性记忆测查(正确回忆的单词个数)中的即刻回忆(健康对照组55.48±5.33;MCI-SSVD 组38.55±8.04;MCI-AD 组34.93±8.79;F=113.407,P=0.000)、短时延迟回忆(健康对照组13.34±1.38;MCI-SSVD 组8.47±2.18;MCI-AD组4.06±2.87;F=216.284,P=0.000)和长时延迟回忆(健康对照组13.18±1.19;MCI-SSVD 组8.58±2.02;MCI-AD 组3.93±2.84;F=239.394,P=0.000)成绩下降最突出。与 MCI-SSVD 相比,MCI-AD 组的记忆相关测验更差(P=0.000),信息处理速度和视空间结构能力相对好(P=0.000~0.023)。2个与记忆和信息处理速度相关的测验能够正确区别93.3%的 MCI-SSVD 患者和93.3%的MCI-AD 患者。结论 MCI-SSVD 和 MCI-AD 都为多认知域损害,尤以记忆损害严重;两者间记忆力和信息处理速度有明显差别,相关测验对鉴别两者有临床应用价值。
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