January 04, 2017

the latest American Journal of Alzheimer's Disease & Other Dementias

Full text articles and books are available to members of Alzheimer’s Australia NSW by emailing NSW.Library@alzheimers.org.au


American Journal of Alzheimer's Disease & Other Dementias

 Current Issue : Volume 31, Issue 8, December 2016

Table of Contents


Errorless learning (EL) is an instructional procedure involving error reduction during learning. Errorless learning is mostly examined by counting correctly executed task steps or by rating them using a Task Performance Scale (TPS).
Here, we explore the validity and reliability of a new assessment procedure, the core elements method (CEM), which rates essential building blocks of activities rather than individual steps.
Task performance was assessed in 35 patients with Alzheimer’s dementia recruited from the Relearning methods on Daily Living task performance of persons with Dementia (REDALI-DEM) study using TPS and CEM independently.
Results showed excellent interrater reliabilities for both measure methods (CEM: intraclass coefficient [ICC] = .85; TPS: ICC = .97). Also, both methods showed a high agreement (CEM: mean of measurement difference [MD] = −3.44, standard deviation [SD] = 14.72; TPS: MD = −0.41, SD = 7.89) and correlated highly (>.75). Based on these results, TPS and CEM are both valid for assessing task performance. However, since TPS is more complicated and time consuming, CEM may be the preferred method for future research projects

 

We aimed to confirm the effectiveness of brain-activating rehabilitation (BAR) performed in the day care setting at an acute hospital. Brain-activating rehabilitation is based on 5 principles: developing a pleasant atmosphere, promoting communication, praising patients, giving patients a social role, and providing supportive care. A total of 48 patients with dementia or cognitive impairment were selected and randomly divided into the intervention and control groups. The BAR-based intervention was conducted for 1 hour, 3 times a week. The patients’ score of the Multidimensional Observation Scale for Elderly Subjects (MOSES) were used as outcome measures. Repeated-measures analysis of covariance detected a significant interaction between the MOSES disorientation (F = 4.437, P = .041) and the withdrawal (F = 5.052, P = .030) subscales. A BAR-based intervention performed at our acute hospital was effective at maintaining and improving the cognitive and psychosocial functioning of patients with dementia or cognitive impairment.

 

 
2016; pp. 618–630
Spatial navigation is one of the cognitive functions known to decline in both normal and pathological aging. In the present study, we aimed to assess the neural correlates of the decline of topographical memory in patients with amnestic mild cognitive impairment (aMCI). Patients with aMCI and age-matched controls were engaged in an intensive learning paradigm, lasting for 5 days, during which they had to encode 1 path from an egocentric perspective and 1 path from an allocentric perspective. After the learning period, they were asked to retrieve each of these paths using an allocentric or egocentric frame of reference while undergoing a functional magnetic resonance imaging scan. We found that patients with aMCI showed a specific deficit in storing new topographical memories from an allocentric perspective and retrieving stored information to perform the egocentric task. Imaging data suggest that this general decline is correlated with hypoactivation of the brain areas generally involved in spatial navigation.

 

 2016; pp. 631–642
This study tested the effect of written emotional expression on the ability to find meaning in caregiving and the effects of finding meaning on emotional state and psychological burden in 91 dementia family caregivers. In a pretest–posttest design, participants were randomly assigned to either an experimental or a comparison group. Experimental caregivers (n = 57) wrote about their deepest thoughts and feelings about caring for a family member with dementia, whereas those in the comparison group (n = 34) wrote about nonemotional topics. Results showed enhanced meaning-making abilities in experimental participants relative to comparison participants, particularly for those who used more positive emotion words. Improved meaning-making ability was in turn associated with psychological benefits at posttest, but experimental participants did not show significantly more benefit than comparison participants. We explore the mediating roles of the meaning-making process as well as some of the background characteristics of the individual caregivers and their caregiving environments.

 
2016; pp. 643–649
To determine the predictors of cognitive decline in a rural and remote population with Alzheimer’s disease (AD), we examined the association between cognitive change and sociodemographic, clinical, and functional data at the initial day of diagnosis. Simple linear regression analysis and multiple regression analysis were used to determine the predictors of cognitive decline as measured by the difference in the Mini-Mental State Examination over 1 year. Our sample included 72 patients with AD. Age at the clinic day appointment was 75.3 (standard deviation [SD] = 7.44). History of hypertension and decreased ability to carry out activities of daily living were statistically significant and predicted greater cognitive decline at 1 year. Many previously suggested predictors of cognitive decline were not evidenced in this study. This research helps identify clinically useful predictors of decline in a rural and remote population with AD.

 
 
 2016; pp. 650–657
To explore the optimal cutoff score for initial detection of Alzheimer’s Disease (AD) through the Chinese version of Mini-Mental State Examination (CMMSE) in rural areas in China, we conducted a cross-sectional study within the Linxian General Population Nutritional Follow-up study. 16,488 eligible cohort members participated in the survey and 881 completed the CMMSE. Among 881 participants, the median age (Interquartile range) was 69.00 (10.00), 634 (71.92%) were female, 657 (74.57%) were illiterate, 35 (3.97%) had 6 years of education or higher, and 295 (33.48%) were diagnosed with AD. By reducing the CMMSE criteria for illiterate to 16 points, primary school to 19 points, and middle school or higher to 23 points, the efficiency of Chinese version of Mini-Mental State Examination can be significantly improved for initial detection of AD in rural areas in China, especially in those nutrition deficient areas.


 
2016; pp. 658–663
We sought to investigate whether the Montreal Cognitive Assessment (MoCA) could provide a brief assessment of recall and recognition using Huntington disease (HD) and Alzheimer disease (AD) as disorders characterized by different memory deficits. This study included 80 participants with HD, 64 participants with AD, and 183 community-dwelling control participants. Random-effects hierarchical logistic regressions were performed to assess the relative performance of the normal control (NC), participants with HD, and participants with AD on verbal free recall, cued recall, and multiple-choice recognition on the MoCA. The NC participants performed significantly better than participants with AD at all the 3 levels of assessment. No difference existed between participants with HD and NC for cued recall, but NC participants performed significantly better than participants with HD on free recall and recognition. The participants with HD performed significantly better than participants with AD at all the 3 levels of assessment. The MoCA appears to be a valuable, brief cognitive assessment capable of identifying specific memory deficits consistent with known differences in memory profiles.

 
 
Grace Suva Victoria McLelland

 2016; pp. 664–677

Education is needed for enhanced capacity of acute hospitals to provide dementia care. A nonrandomized controlled, repeated-measures design was used to evaluate a dementia education program delivered to an intervention group (IG, n = 468), compared to a wait-listed group (n = 277), representing separate sites of a multisite hospital. Participants completed self-efficacy for dementia and satisfaction measures and provided written descriptions of dementia care collected at baseline, postintervention (IG only), and at 8-week follow-up. Oral narratives were gathered from IG participants 8 weeks postintervention. The IG demonstrated significant improvement in self-efficacy scores from baseline to immediately postintervention (P < .001), sustained at 8 weeks. There were no changes from baseline to 8 weeks postintervention evident in the wait-listed group (P = .21). Intervention group participants described positive impacts including implementation of person-centered care approaches. Implementation of dementia care education programs throughout hospital settings is promising for the enhancement of dementia care.


 
2016; pp. 678–686
Objective:
This study evaluated the risk of cognitive decline associated with paroxetine use in elderly nursing home patients with depression.
Conclusions:
There was no differential effect of paroxetine on cognition when compared to other SSRIs.


 
 2016; pp. 687–692
The purpose of the project, Centers for Medicare & Medicaid Services (CMS) Innovation study, was to evaluate the impact on 12 quality measures including 10 Minimum Data Set (MDS) publicly reported measures and 2 nursing home process measures using habilitation therapy techniques and a behavior team to manage dementia-related behaviors. A prospective design was used to assess the changes in the measures. A total of 30 Massachusetts nursing homes participated in the project over a 12-month period. Project participation required the creation of an interdisciplinary behavior team, habilitation therapy training, facility visit by the program coordinator, attendance at bimonthly support and sharing calls, and monthly collection of process measure data. Participating facilities showed improvement in 9 of the 12 reported measures. Findings indicate potential quality improvement in having nursing homes learn habilitation therapy techniques and know how to use the interdisciplinary team to manage problem behaviors

Reviews


 
Janet Sansoni  (1Australian Health Services Research Institute, University of Wollongong, Wollongong, New South Wales, Australia)

Cathy Duncan (1Australian Health Services Research Institute, University of Wollongong, Wollongong, New South Wales, Australia)

Pamela Grootemaat (1Australian Health Services Research Institute, University of Wollongong, Wollongong, New South Wales, Australia)
Jacquelin Capell (1Australian Health Services Research Institute, University of Wollongong, Wollongong, New South Wales, Australia)

Peter Samsa (1Australian Health Services Research Institute, University of Wollongong, Wollongong, New South Wales, Australia)
Anita Westera ( 1Australian Health Services Research Institute, University of Wollongong, Wollongong, New South Wales, Australia

 2016; pp. 693–705
This literature review focused on the experience, care, and service requirements of people with younger onset dementia. Systematic searches of 10 relevant bibliographic databases and a rigorous examination of the literature from nonacademic sources were undertaken. Searches identified 304 articles assessed for relevance and level of evidence, of which 74% were academic literature. The review identified the need for (1) more timely and accurate diagnosis and increased support immediately following diagnosis; (2) more individually tailored services addressing life cycle issues; (3) examination of the service needs of those living alone; (4) more systematic evaluation of services and programs; (5) further examination of service utilization, costs of illness, and cost effectiveness; and (6) current Australian clinical surveys to estimate prevalence, incidence, and survival rates. Although previous research has identified important service issues, there is a need for further studies with stronger research designs and consideration of the control of potentially confounding factors.


 
2016; pp. 706–716
Background:
Eating problems and dietary changes have been reported in patients with dementia.
Objectives:
The aim of this article is to explore the generalized problems with nutrition, diet, feeding, and eating reported among patients with dementia.
Methods:
Medline and Google Scholar searches were conducted for relevant articles, chapters, and books published before 2016. Search terms used included behavioral and psychological symptoms of dementia, dementia, dietary changes, eating behavior. Publications found through this indexed search were reviewed for further relevant references.
Results:
Abnormal eating behaviors, eating problems, and dietary changes are present in most people with dementia, especially in the later stages of the condition.
Conclusion:
Individuals with dementia frequently develop serious feeding difficulties and changes in eating and dietary habits. The changes may be secondary to cognitive impairment or apraxia, or the result of insufficient caregiving, or the consequence of metabolic or neurochemical abnormalities occurring as part of the dementing process.
 

 

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