轻度认知障碍老年病人事件相关电位P300和脑电图的研究

被引:13
作者
李洁 [1 ,2 ]
朱英标 [1 ,2 ]
陈伟康 [1 ,2 ]
卢丽萍 [1 ,2 ]
蓝丽康 [1 ,2 ]
邹海 [1 ,2 ]
机构
[1] 浙江省温州医科大学第六附属医院
[2] 丽水市人民医院
关键词
轻度认知障碍; 阿尔茨海默病; 事件相关电位; P300; 脑电描记术; 老年人;
D O I
暂无
中图分类号
R749.16 [];
学科分类号
摘要
目的探讨轻度认知功能障碍(MCI)老年病人事件相关电位(ERP)P300和脑电图(EEG)的特点,寻求对老年MCI进行综合评估的有效方法,初步预测MCI向早期阿尔茨海默病(AD)的转换。方法对35例MCI病人(MCI组)、28例阿尔茨海默病(AD)病人(AD组)进行P300、EEG检查,并与30名健康老年人(对照组)作比较。结果 P300显示,与对照组比较,MCI组与AD组病人ERP改变表现为P300潜伏期逐渐异常延长,AD组较MCI组的变化更为明显。MCI组与AD组只在P300潜伏期的顶部(Pz)点差异有统计学意义(P<0.05);MCI组与对照组的P300潜伏期在中央(Cz)点比较差异有统计学意义(P<0.05)。AD组与对照组比较P300潜伏期的额部Fz、Cz、Pz点差异有统计学意义(P<0.01),波幅Cz点的差异有统计学意义(P<0.01)。EEG显示,MCI组异常率为51.4%(18/35),AD组为92.9%(26/28),对照组为33.3%(10/30),3组间差异有统计学意义(P<0.01)。结论 P300潜伏期Pz点的改变可能有助于区分MCI和AD,EEG中θ波相关功率谱及平均频率增加是MCI转为AD的早期预测信号,联合使用EEG和P300可能有助于对老年性痴呆病人的综合评估,并可能成为预测MCI向AD的转化的有效方法 。
引用
收藏
页码:1519 / 1521
页数:3
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