Non-Pharmacological Interventions in Cognitively Impaired and Demented Patients - A Comparison with Cholinesterase Inhibitors

EFFECTS OF REHABILITATION PROGRAM FOCUSED ON IMPROVING REAL-LIFE DAILY ACTIVITIES OF PATIENTS WITH MILD COGNITIVE IMPAIRMENTS OR DEMENTIA AND THEIR CAREGIVERS

Objective

To evaluate the effectiveness of a dyadic outpatient rehabilitation program focused on improving the real-life daily activities of patients with mild cognitive impairments or dementia and their caregivers.

Design

Retrospective study.

Subjects

Eight patients with mild cognitive impairments or dementia and their caregivers.

Methods

The rehabilitation program comprised eight 1-hour sessions by occupational therapists with patients and his/her caregivers. Patients were assessed for motor function, cognitive function, and quality of life, and their caregivers were assessed for depression and caregiver burden. Participants were assessed at pre-program and post-program, and 3-month follow-up.

Results

The scores of caregiver-assessed Quality of life in Alzheimer's disease scale in patients significantly improved at post-program (median [interquartile range], 30.0 [7.0]) compared with pre-program (27.0 [2.8], effect size = 0.77, p = 0.029). In caregivers, the Zarit Caregiver Burden Interview scores decreased significantly at post-program (16.5 [13.0]) compared with pre-program (22.0 [17.5], effect size = 0.72, p = 0.042). There were no significant differences in other assessments.

Conclusions

The rehabilitation program focused on real daily activities and demonstrated to improve patients' quality of life and caregivers' depression and caring burden through patient-caregiver interaction. Future enhanced follow-up systems are warranted.

Exploring the impact of community-based choral participation on cognitive function and well-being for persons with dementia: evidence from the Voices in Motion project

OBJECTIVES

Music-based interventions are postulated to mitigate cognitive decline in individuals with dementia. However, the mechanisms underlying why music-based interventions facilitate cognitive benefits remain unknown. The present study examines whether a choral intervention can modulate patterns of cognitive change in persons with dementia and whether within-person variation in affect is associated with this change.

METHODS

Thirty-three older adults with dementia engaged weekly in the Voices in Motion (ViM) study consisting of 3 choral seasons spanning 18-months. Performance on the Mini-Mental State Examination (MMSE) and the Positive and Negative Affect Schedule was assessed monthly within each choral season using a longitudinal intensive repeated-measures design. Three-level multilevel models were employed to disaggregate between- and within-person effects across short- (month-to-month) and long-term (season-to-season) intervals.

RESULTS

ViM participants exhibited an annual MMSE decline of 1.8 units, notably less than the clinically meaningful 3.3 units indicated by non-intervention literature. Further, variability in negative affect shared a within-person time-varying association with MMSE performance; decreases in negative affect, relative to one's personal average, were linked to corresponding improvements in cognitive function.

CONCLUSION

Engagement in the ViM choral intervention may attenuate cognitive decline for persons with dementia via a reduction of psychological comorbidities such as elevated negative affect.

Resetting the Aging Clock: Implications for Managing Age-Related Diseases

Worldwide, individuals are living longer due to medical and scientific advances, increased availability of medical care and changes in public health policies. Consequently, increasing attention has been focused on managing chronic conditions and age-related diseases to ensure healthy aging. The endogenous circadian system regulates molecular, physiological and behavioral rhythms orchestrating functional coordination and processes across tissues and organs. Circadian disruption or desynchronization of circadian oscillators increases disease risk and appears to accelerate aging. Reciprocally, aging weakens circadian function aggravating age-related diseases and pathologies. In this review, we summarize the molecular composition and structural organization of the circadian system in mammals and humans, and evaluate the technological and societal factors contributing to the increasing incidence of circadian disorders. Furthermore, we discuss the adverse effects of circadian dysfunction on aging and longevity and the bidirectional interactions through which aging affects circadian function using examples from mammalian research models and humans. Additionally, we review promising methods for managing healthy aging through behavioral and pharmacological reinforcement of the circadian system. Understanding age-related changes in the circadian clock and minimizing circadian dysfunction may be crucial components to promote healthy aging.

Comprehensive, Individualized, Person-Centered Management of Community-Residing Persons with Moderate-to-Severe Alzheimer Disease: A Randomized Controlled Trial

BACKGROUND/AIMS

The aim was to examine added benefits of a Comprehensive, Individualized, Person-Centered Management (CI-PCM) program to memantine treatment.

METHODS

This was a 28-week, clinician-blinded, randomized, controlled, parallel-group study, with a similar study population, similar eligibility criteria, and a similar design to the memantine pivotal trial of Reisberg et al. [N Engl J Med 2003;348:1333-1341]. Twenty eligible community-residing Alzheimer disease (AD) subject-caregiver dyads were randomized to the CI-PCM program (n = 10) or to usual community care (n = 10). Primary outcomes were the New York University Clinician's Interview-Based Impression of Change Plus Caregiver Input (NYU-CIBIC-Plus), assessed by one clinician set, and an activities of daily living inventory, assessed by a separate clinician set at baseline and at weeks 4, 12, and 28.

RESULTS

Primary outcomes showed significant benefits of the CI-PCM program at all post-baseline evaluations. Improvement on the NYU-CIBIC-Plus in the management group at 28 weeks was 2.9 points over the comparator group. The memantine 2003 trial showed an improvement of 0.3 points on this global measure in memantine-treated versus placebo-randomized subjects at 28 weeks. Hence, globally, the management program intervention benefits were 967% greater than memantine treatment alone.

CONCLUSION

These results are approximately 10 times those usually observed with both nonpharmacological and pharmacological treatments and indicate substantial benefits with the management program for advanced AD persons.

Effects of Self-Management Groups for People with Dementia and Their Spouses--Randomized Controlled Trial

OBJECTIVES

To investigate the effect of self-management group rehabilitation for persons with dementia (PwD) and their spouses on their health-related quality of life (HRQoL), the cognition of the PwD, and the costs of health and social services.

DESIGN

A randomized controlled trial.

SETTING

Primary care and memory clinics in the Helsinki metropolitan area, Finland.

PARTICIPANTS

PwD (N = 136) and their spouses (N = 136).

INTERVENTION

Couples were randomized to usual care or eight-session self-management groups for PwD and concurrently for their spouses. Sessions aim to enhance self-efficacy and problem-solving skills and to provide peer support.

MEASUREMENTS

The primary outcome measures were the HRQoL of PwD (measured using a generic, comprehensive (15-dimensional), self-administered instrument (15D)) and spouses (measured using the RAND-36) and the spousal Sense of Competence Questionnaire (SCQ). Secondary outcome measures were PwD cognition (Verbal Fluency (VF), Clock Drawing Test (CDT)) and costs of health and social services during 24 months.

RESULTS

At 3 months, the spouse physical component of the RAND-36 improved (mean change 1.0, 95% confidence interval (CI) = -0.5 to 2.4) for those undergoing the intervention and worsened for controls (mean change -2.0, 95% CI = -3.5 to -0.4) (P = .006 adjusted for age, sex, baseline value of the physical component of the RAND-36). There were no differences between the groups on the mental component of the RAND-36, the SCQ, or the 15D. At 9 months, PwD change in VF was -0.38 (95% CI = -1.03 to 0.27) in intervention group and -1.60 (95% CI = -2.26 to -0.94) for controls (P = .011 adjusted for age, sex, baseline MMSE score). CDT changes were similar to VF changes. Differences in incremental costs between the groups was -436 € per person per year (95% CI = -4,986 to 4,115) for PwD (P = .35 adjusted for age, CDR) and -896 € per person per year (95% CI = -3,657 to 1,864) for spouses (P = .51 adjusted for PwD age, CDR).

CONCLUSIONS

The intervention had beneficial effects on the HRQoL of spouses and the cognitive function of PwD without increasing total costs.

TRIAL REGISTRATION

anzctr.org.au Identifier: ACTRN12611001173987.

Barriers to and facilitators for the use of an evidence-based occupational therapy guideline for older people with dementia and their carers

OBJECTIVE

Implementing evidence-based guidelines is not a simple task. This study aimed to define barriers to and facilitators for implementing the proven and effective Community Occupational Therapy in Dementia (COTiD) guideline for older people with dementia and their carers.

METHODS

The qualitative method we used was the grounded theory. We collected data from focus group interviews with 17 occupational therapists (OTs) and telephone interviews with 10 physicians and 4 managers. We analysed the data with the constant comparative method by identifying codes, categories, and main themes.

RESULTS

The main themes in barriers that OTs encountered were that they did not feel competent in treating older people with dementia at home according to the guideline; they had difficulties prioritising in this complex treatment, both for the client and themselves; and they were unsure about the minimal criteria for guideline adherence. The intensity of this programme was the main barrier. The barriers that confronted physicians and managers were lack of knowledge about occupational therapy and its reimbursement and lack of available trained OTs. For the OTs, the guideline's content and focus, evidence, and external support facilitated the use of the guideline. For physicians and managers, the guideline's evidence base and its benefits for clients and carers were the main facilitators.

CONCLUSIONS

This study generates knowledge for applying innovations in health care settings. Improvement of the OTs' knowledge and self-confidence is needed for using the guideline. We expect that more competent OTs will motivate their physicians and managers to use this successful COTiD intervention.

[Exercise and psychological well-being]

Research on the association between physical activity and mental health addresses the beneficial effects of physical activity on emotional and cognitive functioning. With regard to emotional functioning, most studies focus on the influence of physical activity on depressive symptoms or affective disorders. These studies show that the beneficial effects of aerobic exercise and pharmacotherapy on depressive symptoms seem to be comparable and discuss a variety of neurobiological mechanisms that improve symptoms. The positive effects of physical activity on anxious mood and anxiety disorders are also well documented. Desensitization to physiological changes, improved self-esteem, and self-efficacy seem to play an important part. However, aerobic exercise does not improve mental health in every case, as seen for instance in over-trained athletes. Research on the relationship between physical activity and cognitive functioning reveals that physical activity can prevent the age-related cognitive decline and can delay the onset of dementia. Physical activity has beneficial effects not only on adults but also on children's and adolescents' mental health and cognitive performance, particularly on their executive functions that are still developing throughout adolescence. Finally, physical activity also affects the endocrine stress-regulation system: trained people reveal stronger reactivity and quicker regeneration when faced with stressful events.

Non-pharmacological, multicomponent group therapy in patients with degenerative dementia: a 12-month randomizied, controlled trial

BACKGROUND

Currently available pharmacological and non-pharmacological treatments have shown only modest effects in slowing the progression of dementia. Our objective was to assess the impact of a long-term non-pharmacological group intervention on cognitive function in dementia patients and on their ability to carry out activities of daily living compared to a control group receiving the usual care.

METHODS

A randomized, controlled, single-blind longitudinal trial was conducted with 98 patients (follow-up: n = 61) with primary degenerative dementia in five nursing homes in Bavaria, Germany. The highly standardized intervention consisted of motor stimulation, practice in activities of daily living, and cognitive stimulation (acronym MAKS). It was conducted in groups of ten patients led by two therapists for 2 hours, 6 days a week for 12 months. Control patients received treatment as usual. Cognitive function was assessed using the cognitive subscale of the Alzheimer's Disease Assessment Scale (ADAS-Cog), and the ability to carry out activities of daily living using the Erlangen Test of Activities of Daily Living (E-ADL test) at baseline and after 12 months.

RESULTS

Of the 553 individuals screened, 119 (21.5%) were eligible and 98 (17.7%) were ultimately included in the study. At 12 months, the results of the per protocol analysis (n = 61) showed that cognitive function and the ability to carry out activities of daily living had remained stable in the intervention group but had decreased in the control patients (ADAS-Cog: adjusted mean difference: -7.7, 95% CI -14.0 to -1.4, P = 0.018, Cohen's d = 0.45; E-ADL test: adjusted mean difference: 3.6, 95% CI 0.7 to 6.4, P = 0.015, Cohen's d = 0.50). The effect sizes for the intervention were greater in the subgroup of patients (n = 50) with mild to moderate disease (ADAS-Cog: Cohen's d = 0.67; E-ADL test: Cohen's d = 0.69).

CONCLUSIONS

A highly standardized, non-pharmacological, multicomponent group intervention conducted in a nursing-home setting was able to postpone a decline in cognitive function in dementia patients and in their ability to carry out activities of daily living for at least 12 months.

TRIAL REGISTRATION

http://www.isrctn.com Identifier: ISRCTN87391496.

The effect of regular walks on various health aspects in older people with dementia: protocol of a randomized-controlled trial

BACKGROUND

Physical activity has proven to be beneficial for physical functioning, cognition, depression, anxiety, rest-activity rhythm, quality of life (QoL), activities of daily living (ADL) and pain in older people. The aim of this study is to investigate the effect of walking regularly on physical functioning, the progressive cognitive decline, level of depression, anxiety, rest-activity rhythm, QoL, ADL and pain in older people with dementia.

METHODS/DESIGN

This study is a longitudinal randomized controlled, single blind study. Ambulatory older people with dementia, who are regular visitors of daily care or living in a home for the elderly or nursing home in the Netherlands, will be randomly allocated to the experimental or control condition. Participants of the experimental group make supervised walks of 30 minutes a day, 5 days a week, as part of their daily nursing care. Participants of the control group will come together three times a week for tea or other sedentary activities to control for possible positive effects of social interaction. All dependent variables will be assessed at baseline and after 6 weeks, and 3, 6, 9, 12 and 18 months of intervention. The dependent variables include neuropsychological tests to assess cognition, physical tests to determine physical functioning, questionnaires to assess ADL, QoL, level of depression and anxiety, actigraphy to assess rest-activity rhythm and pain scales to determine pain levels. Potential moderating variables at baseline are: socio-demographic characteristics, body mass index, subtype of dementia, apolipoprotein E (ApoE) genotype, medication use and comorbidities.

DISCUSSION

This study evaluates the effect of regular walking as a treatment for older people with dementia. The strength of this study is that 1) it has a longitudinal design with multiple repeated measurements, 2) we assess many different health aspects, 3) the intervention is not performed by research staff, but by nursing staff which enables it to become a routine in usual care. Possible limitations of the study are that 1) only active minded institutions are willing to participate creating a selection bias, 2) the drop-out rate will be high in this population, 3) not all participants will be able to perform/understand all tests.

TRIAL REGISTRATION

NTR1482.

Motor-skill learning in Alzheimer's disease: a review with an eye to the clinical practice

Since elderly people suffering from dementia want to go on living independently for as long as possible, they need to be able to maintain familiar and learn new practical skills. Although explicit or declarative learning methods are mostly used to train new skills, it is hypothesized that implicit or procedural techniques may be more effective in this population. The present review discusses 23 experimental studies on implicit motor-skill learning in patients with Alzheimer's disease (AD). All studies found intact implicit motor-learning capacities. Subsequently, it is elaborated how these intact learning abilities can be exploited in the patients' rehabilitation with respect to the variables 'practice' and 'feedback.' Recommendations for future research are provided, and it is concluded that if training programs are adjusted to specific needs and abilities, older people with AD are well able to (re)learn practical motor skills, which may enhance their autonomy.

Gender differences in predictors of survival in elderly nursing-home residents: a 3-year follow up

This study focus on predicting factors of survival possible to modify by nursing care, and the incidence and mortality rate of nursing-home-acquired pneumonia, allocated to 1, 2 and 3 years of follow ups. The residents consisted of 156 women and 78 men living in special housing for the elderly. Data on chronic disease and medication were obtained at baseline, and activities of daily living (ADL) status, nutritional status and body temperature were assessed. The incidence of pneumonia was noted prospectively for 1 year and retrospectively for the following 2 years. Predictive factors for survival were explored by Cox hazard regression analysis. The results showed that age, functional and cognitive impairment were predictors of mortality irrespective of gender, while poor nutritional status in women and chronic obstructive pulmonary disease, heart disease and medication with sedatives in men were gender-specific predictors. ADL correlated positively with dementia and negatively with S-albumin irrespective of gender, while malnutrition correlated positively with ADL in women and positively with chronic obstructive pulmonary disease in men. To promote the quality of daily living in elderly individuals, it is of importance to improve the capabilities in daily functions and nutritional status, especially in women with functional impairment, and to prevent anxiety particularly in men. The findings also clarify that pneumonia is as common as cerebral vascular insult and heart failure as cause of death in this population.

Community based occupational therapy for patients with dementia and their care givers: randomised controlled trial

OBJECTIVE

To determine the effectiveness of community based occupational therapy on daily functioning of patients with dementia and the sense of competence of their care givers.

DESIGN

Single blind randomised controlled trial. Assessors were blinded for treatment allocation.

SETTING

Memory clinic and day clinic of a geriatrics department and participants' homes.

PARTICIPANTS

135 patients aged > or =65 with mild to moderate dementia living in the community and their primary care givers.

INTERVENTIONS

10 sessions of occupational therapy over five weeks, including cognitive and behavioural interventions, to train patients in the use of aids to compensate for cognitive decline and care givers in coping behaviours and supervision.

MAIN OUTCOME MEASURES

Patients' daily functioning assessed with the assessment of motor and process skills (AMPS) and the performance scale of the interview of deterioration in daily activities in dementia (IDDD). Care giver burden assessed with the sense of competence questionnaire (SCQ). Participants were evaluated at baseline, six weeks, and three months.

RESULTS

Scores improved significantly relative to baseline in patients and care givers in the intervention group compared with the controls (differences were 1.5 (95% confidence interval 1.3 to 1.7) for the process scale; -11.7 (-13.6 to -9.7) for the performance scale; and (11.0; 9.2 to 12.8) for the competence scale). This improvement was still significant at three months. The number needed to treat to reach a clinically relevant improvement in motor and process skills score was 1.3 (1.2 to 1.4) at six weeks. Effect sizes were 2.5, 2.3, and 1.2, respectively, at six weeks and 2.7, 2.4, and 0.8, respectively, at 12 weeks.

CONCLUSIONS

Occupational therapy improved patients' daily functioning and reduced the burden on the care giver, despite the patients' limited learning ability. Effects were still present at 12 weeks, which justifies implementation of this intervention.

TRIAL REGISTRATION

Clinical Trials NCT00295152 [ClinicalTrials.gov].

Electrical treatment of reduced consciousness: experience with coma and Alzheimer's disease

The right median nerve can be stimulated electrically to help arouse the central nervous system for persons with reduced levels of consciousness. The mechanisms of central action include increased cerebral blood flow and raised levels of dopamine. There is 11 years of experience in the USA of using nerve stimulation for acute coma after traumatic brain injury. There is a much longer period of experience by neurosurgeons in Japan with implanted electrodes on the cervical spinal cord for persons in the persistent vegetative state (PVS). But the use of right median nerve electrical stimulation (RMNS) for patients in the subacute and chronic phases of coma is relatively new. Surface electrical stimulation to treat anoxic brain injury as well as traumatic brain injury is evolving. Novel applications of electrical stimulation in Amsterdam have produced cognitive behavioural effects in persons with early and mid-stage Alzheimer's disease employing transcutaneous electrical nerve stimulation (TENS). Improvements in short-term memory and speech fluency have also been noted. Regardless of the aetiology of the coma or reduced level of awareness, electrical stimulation may serve as a catalyst to enhance central nervous system functions. It remains for the standard treatments and modalities to retrain the injured brain emerging from reduced levels of consciousness.

Peripheral electrical stimulation in Alzheimer's disease

In a number of studies, peripheral electrical nerve stimulation has been applied to Alzheimer's disease (AD) patients who lived in a nursing home. Improvements were observed in memory, verbal fluency, affective behavior, activities of daily living and on the rest-activity rhythm and pupillary light reflex. The aim of the present, randomized, placebo-controlled, parallel-group clinical trial was to examine the effects of electrical stimulation on cognition and behavior in AD patients who still live at home. Repeated measures analyses of variance revealed no effects of the intervention in the verum group (n = 32) compared with the placebo group (n = 30) on any of the cognitive and behavioral outcome measures. However, the majority of the patients and the caregivers evaluated the treatment procedure positively, and applying the daily treatment at home caused minimal burden. The lack of treatment effects calls for reconsideration of electrical stimulation as a symptomatic treatment in AD.