Anosognosia for memory in dementia with Lewy bodies compared with Alzheimer's disease.

Autor: Calil V; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil.; Department of Neurology, Hospital Glória D'Or, Rio de Janeiro, Brazil.; Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., Silveira de Souza A; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Sudo FK; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Santiago-Bravo G; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Assunção N; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Drummond C; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil.; Department of Speech and Hearing Pathology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., Rodrigues F; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil.; Department of Speech and Hearing Pathology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., Soares R; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Oliveira N; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Teldeschi A; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Bernardes G; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Lima G; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Lima C; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil., Lima MA; Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.; Evandro Chagas National Institute of Infectious Disease (INI), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil., Mattos P; Memory Clinic, D'Or Institute for Research and Education, Rio de Janeiro, Brazil.; Institute of Psychiatry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Jazyk: angličtina
Zdroj: International journal of geriatric psychiatry [Int J Geriatr Psychiatry] 2021 Jul; Vol. 36 (7), pp. 1059-1064. Date of Electronic Publication: 2021 Feb 25.
DOI: 10.1002/gps.5521
Abstrakt: Objectives: Anosognosia is the inability to recognize one's own symptoms. Although dementia with Lewy bodies (DLB) is the second most common degenerative dementia, there is little evidence of memory deficit awareness in this condition. The objectives of this research were to compare anosognosia between individuals with DLB and dementia due to Alzheimer's disease (AD) and to evaluate whether medial temporal atrophy, a marker of AD pathology, could help to explain different rates of anosognosia in DLB and dementia due to AD.
Methods/design: This is a cross-sectional study that took place at the Memory Clinic of D'Or Institute for Research and Education (IDOR). Twenty individuals with DLB and 20 with dementia due to AD were included in this study. We assessed anosognosia for memory using an index derived from subjective memory complaints (using the Memory Complaint Questionnaire) and from the performance in memory neuropsychological testing (Rey Auditory Verbal Learning Test). Thirty-one participants also underwent brain Magnetic Resonance Imaging to evaluate hippocampal atrophy with a visual scale (MTA-score [medial temporal atrophy score]).
Results: There was no significant difference between groups regarding age, years of education, sex or time of disease. Individuals with DLB had a higher index of anosognosia than dementia due to AD (2.92 and 1.87; p = 0.024), meaning worse awareness of memory deficits. MTA-score was slightly higher in dementia due to AD than in DLB, albeit without statistical significance.
Conclusion: Our study was the first to demonstrate that anosognosia for memory is worse in DLB than in dementia due to AD. This finding supports the hypothesis that anosognosia in DLB is a heterogeneous phenomenon.
(© 2021 John Wiley & Sons Ltd.)
Databáze: MEDLINE