帕金森病痴呆与阿尔茨海默病认知障碍特点分析

目的 分析帕金森病痴呆(PDD)与阿尔茨海默病(AD)患者的认知障碍特点.方法 采用语义流畅性、语音流畅性、动作流畅性测验与物品和动作命名测验评定PDD组(30例)、AD组(30例)与对照组(60例)患者临床情况.结果 PDD组语义流畅性测验总分(9.33±2.78)分、语音流畅性测验总分(6.17±1.67)分、动作流畅性测验总分(7.03±2.34)分,AD组分别为(6.90±2.47)分、(7.87±2.01)分、(8.30±3.17)分;PDD组物件命名测验总分(36.33±3.39)分、动作命名测验总分(17.63±2.17)分,AD组分别为(33.23±3.56)分与(22.33±2.37)分.与对照组比较,PDD与AD患者三项言语流畅性与物品和动作命名均受损(P＜0.01).其中,PDD患者以语音流畅性、动作流畅性与动作命名损害为重,而AD患者以语义流畅性与物件损害为重(P＜0.01).结论 PDD与AD患者均存在执行功能障碍与命名损害,PDD是一种伴有皮质功能损害以额叶皮质下功能障碍为主要特点的认知损害性疾病,而AD亦存在皮质下功能障碍.

Abstract：

Objective To analyze the characterization of cognitive function in Parkinson's disease with dementia and Alzheimer's disease. Methods Cognitive function was examined in Parkinson's disease with dementia (PDD) patients ( n = 30) , Alzheimer's disease (AD) patients ( n = 30) and healthy elderly control subjects ( n = 60) . Neuropsychological evaluation contained semantic fluency test, phonemic fluency test, action fluency test, objective and action naming tests. Results In PDD group , the score of semantic fluency test is 9. 33 ±2. 78, 6. 17 ± 1.67 of phonemic fluency test and 7.03 ±2. 34 of action fluency test,it is 6.90 ±2.47, 7.87±2.01,8.30±3. 17 of AD group. The score of objective and action naming tests is 36.33 ±3.39, 17.63 ±2. 17 in PDD group,while AD patients is 33.23 ±3.56 and 22.33 ±2.37. The verbal fluency tests and naming tests were impaired in PDD and AD patients compared with the healthy elderly control group (P ＜ 0. 01 ), phonemic fluency, action fluency and action naming were more impaired in PDD patients compared with the AD group , while semantic fluency and objective naming were more impaired in AD patients (P ＜ 0. 01 ). Conclusions Executive function deficit and naming impairment are found in PDD and AD patients, it shows that PDD is characterized by the addition of cortical dysfunction upon a predominant and progressive fronto-subcortical impairment. There is subcortical dysfunction in AD patients.

The characteristics of Parkinson's disease with dementia and Alzheimer's disease with impaired cognitive function

Objective To analyze the characterization of cognitive function in Parkinson's disease with dementia and Alzheimer's disease. Methods Cognitive function was examined in Parkinson's disease with dementia (PDD) patients ( n = 30) , Alzheimer's disease (AD) patients ( n = 30) and healthy elderly control subjects ( n = 60) . Neuropsychological evaluation contained semantic fluency test, phonemic fluency test, action fluency test, objective and action naming tests. Results In PDD group , the score of semantic fluency test is 9. 33 ±2. 78, 6. 17 ± 1.67 of phonemic fluency test and 7.03 ±2. 34 of action fluency test,it is 6.90 ±2.47, 7.87±2.01,8.30±3. 17 of AD group. The score of objective and action naming tests is 36.33 ±3.39, 17.63 ±2. 17 in PDD group,while AD patients is 33.23 ±3.56 and 22.33 ±2.37. The verbal fluency tests and naming tests were impaired in PDD and AD patients compared with the healthy elderly control group (P ＜ 0. 01 ), phonemic fluency, action fluency and action naming were more impaired in PDD patients compared with the AD group , while semantic fluency and objective naming were more impaired in AD patients (P ＜ 0. 01 ). Conclusions Executive function deficit and naming impairment are found in PDD and AD patients, it shows that PDD is characterized by the addition of cortical dysfunction upon a predominant and progressive fronto-subcortical impairment. There is subcortical dysfunction in AD patients.