Mary S. Mittelman

Nonpharmacological Therapies in Alzheimer’s Disease: A Systematic Review of Efficacy

Introduction: Nonpharmacological therapies (NPTs) can improve the quality of life (QoL) of people with Alzheimer’s disease (AD) and their carers. The objective of this study was to evaluate the best evidence on the effects of NPTs in AD and related disorders (ADRD) by performing a systematic review and meta-analysis of the entire field. Methods: Existing reviews and major electronic databases were searched for randomized controlled trials (RCTs). The deadline for study inclusion was September 15, 2008. Intervention categories and outcome domains were predefined by consensus. Two researchers working together detected 1,313 candidate studies of which 179 RCTs belonging to 26 intervention categories were selected. Cognitive deterioration had to be documented in all participants, and degenerative etiology (indicating dementia) had to be present or presumed in at least 80% of the subjects. Evidence tables, meta-analysis and summaries of results were elaborated by the first author and reviewed by author subgroups. Methods for rating level of evidence and grading practice recommendations were adapted from the Oxford Center for Evidence-Based Medicine. Results: Grade A treatment recommendation was achieved for institutionalization delay (multicomponent interventions for the caregiver, CG). Grade B recommendation was reached for the person with dementia (PWD) for: improvement in cognition (cognitive training, cognitive stimulation, multicomponent interventions for the PWD); activities of daily living (ADL) (ADL training, multicomponent interventions for the PWD); behavior (cognitive stimulation, multicomponent interventions for the PWD, behavioral interventions, professional CG training); mood (multicomponent interventions for the PWD); QoL (multicomponent interventions for PWD and CG) and restraint prevention (professional CG training); for the CG, grade B was also reached for: CG mood (CG education, CG support, multicomponent interventions for the CG); CG psychological well-being (cognitive stimulation, multicomponent interventions for the CG); CG QoL (multicomponent interventions for PWD and CG). Conclusion: NPTs emerge as a useful, versatile and potentially cost-effective approach to improve outcomes and QoL in ADRD for both the PWD and CG.

Improving caregiver well-being delays nursing home placement of patients with Alzheimer disease

Objective: To determine the effectiveness of a counseling and support intervention for spouse caregivers in delaying time to nursing home placement of patients with Alzheimer disease (AD), and identify the mechanisms through which the intervention accomplished this goal. Methods: We conducted a randomized controlled trial of an enhanced counseling and support intervention compared to usual care. Participants were a referred volunteer sample of 406 spouse caregivers of community-dwelling patients who had enrolled in the study over a 9.5-year period. The intervention consisted of six sessions of individual and family counseling, support group participation, and continuous availability of ad hoc telephone counseling. Structured questionnaires were administered at baseline and at regular follow-up intervals, every 4 months for the first year and every 6 months thereafter. Cox proportional hazard models were used to test the effects of the intervention on the time to nursing home placement for the patients after controlling for multiple time-invariant and time-dependent predictors of placement. Results: Patients whose spouses received the intervention experienced a 28.3% reduction in the rate of nursing home placement compared with usual care controls (hazard ratio = 0.717 after covariate adjustment, p = 0.025). The difference in model-predicted median time to placement was 557 days. Improvements in caregivers’ satisfaction with social support, response to patient behavior problems, and symptoms of depression collectively accounted for 61.2% of the intervention’s beneficial impact on placement. Conclusion: Greater access to effective programs of counseling and support could yield considerable benefits for caregivers, patients with Alzheimer disease, and society.

Neuropsychological prediction of decline to dementia in nondemented elderly.

This study examined whether baseline neuropsychological performance in elderly assessed at a research clinic could accurately predict subsequent decline to dementia. Logistic regression analyses were applied to (1) 213 nondemented elderly with a Global Deterioration Scale (GDS) score of 1, 2, or 3, of whom 74 (35%) subsequently declined to any diagnosis of dementia, and (2) a diagnostically more restricted subset of this sample (N = 179), of whom 56 (31%) declined to a diagnosis of probable Alzheimers disease (AD). The mean follow-up intervals were 3.8 and 3.7 years, respectively. A small set of baseline neuropsychological measures (especially a Paragraph Delayed Recall Test) significantly differentiated decliners from nondecliners to dementia or AD, after accounting for the contribution of age, sex, education, follow-up interval, and the rating of global clinical status. When examined in combination with the other factors or alone, the cognitive tests produced reasonably high specificities (91%-97%) and sensitivities (73%-89%). Using the obtained regression model, a similar level of classification accuracy was replicated on an independent sample of 119 nondemented elderly. A subanalysis of the high-risk GDS 3 subgroup indicated that cut scores from the paragraph test distinguished nondecliners from decliners (overall accuracies 87%-91%), implying that this assessment may accurately predict future cognitive status in elderly with mild cognitive impairment. (J Geriatr Psychiatry Neurol 1999; 12:168-179).

Can counseling and support reduce burden and depressive symptoms in caregivers of people with Alzheimer's disease during the transition to institutionalization? Results from the New York University Caregiver Intervention Study

OBJECTIVES: To determine whether counseling and support reduce the burden and depressive symptoms of spouse caregivers of patients with Alzheimers disease (AD) during the transition to institutionalization.

A Three-Country Randomized Controlled Trial of a Psychosocial Intervention for Caregivers Combined With Pharmacological Treatment for Patients With Alzheimer Disease: Effects on Caregiver Depression

OBJECTIVE To evaluate the effectiveness of a combination of cholinesterase inhibitor therapy for patients with Alzheimer disease (AD) and psychosocial intervention, for their spouse caregivers compared with drug treatment alone in three countries simultaneously. DESIGN Randomized controlled trial. Structured questionnaires were administered at baseline and at regular follow-up intervals for 24 months by independent raters blind to group assignment. SETTING Outpatient research clinics in New York City, U.S., Manchester, U.K. and Sydney, Australia. PARTICIPANTS Volunteer sample of 158 spouse caregivers of community dwelling patients with AD. INTERVENTIONS Five sessions of individual and family counseling within 3 months of enrollment and continuous availability of ad hoc telephone counseling were provided for half the caregivers. Donepezil was prescribed for all patients. MAIN OUTCOME MEASURE Depressive symptoms of spouse caregivers measured at intake and follow-up assessments for 24 months using Beck Depression Inventory (revised). RESULTS Depression scores of caregivers who received counseling decreased over time, whereas the depression scores for caregivers who did not receive counseling increased. The benefit of the psychosocial intervention was significant after controlling for site, gender and country was not accounted for by antidepressant use and increased over 2 years even though the individual and family counseling sessions occurred in the first 3 months. CONCLUSION Effective counseling and support interventions can reduce symptoms of depression in caregivers when patients are taking donepezil. Harmonized multinational psychosocial interventions are feasible. Combined drug and supportive care approaches to the management of people with AD should be a priority.

Life-sustaining treatment decisions by spouses of patients with Alzheimer's disease

OBJECTIVE: To examine the anticipated decisions to consent to or to forgo life‐sustaining treatment by spouses of patients with Alzheimers disease and to describe the relationship of spouse and patient characteristics to predicted decisions.

Clinically significant changes in burden and depression among dementia caregivers following nursing home admission

BackgroundAlthough extensive research exists on informal long-term care, little work has examined the clinical significance of transitions in family caregiving due to a lack of established clinical cut-points on key measures. The objectives of this study were to determine whether clinically significant changes in symptoms of burden and depression occur among caregivers within 12 months of nursing home admission (NHA) of their relatives with dementia, and to identify key predictors of clinically persistent burden and depression in the first year after institutionalization.MethodsSecondary longitudinal analysis of dementia caregivers were recruited from eight catchment areas in the United States with 6- and 12-month post-placement follow-up data. The sample included data on 1,610 dementia caregivers with pre- and six-month post-placement data and 1,116 with pre-placement, six-month, and 12-month post-placement data. Burden was measured with a modified version of the Zarit Burden Inventory. Depressive symptoms were assessed with the Geriatric Depression Scale.ResultsChi-square analyses found significant (P < .05) reductions in the number of caregivers who reported clinically significant burden and depressive symptoms after NHA compared to pre-placement. Logistic regression models revealed that wives and daughters were most likely to experience clinically persistent burden and husbands were most likely to experience clinically significant depression after NHA.ConclusionsIn addition to suggesting that clinically significant decreases in caregiver burden and depression are likely to occur following institutionalization, the results reveal particular subsets of caregivers who are at continued risk of distress. Such findings can facilitate development of screening processes to identify families at-risk following institutionalization.

Does a family meetings intervention prevent depression and anxiety in family caregivers of dementia patients? A randomized trial

Background Family caregivers of dementia patients are at increased risk of developing depression or anxiety. A multi-component program designed to mobilize support of family networks demonstrated effectiveness in decreasing depressive symptoms in caregivers. However, the impact of an intervention consisting solely of family meetings on depression and anxiety has not yet been evaluated. This study examines the preventive effects of family meetings for primary caregivers of community-dwelling dementia patients. Methods A randomized multicenter trial was conducted among 192 primary caregivers of community dwelling dementia patients. Caregivers did not meet the diagnostic criteria for depressive or anxiety disorder at baseline. Participants were randomized to the family meetings intervention (n = 96) or usual care (n = 96) condition. The intervention consisted of two individual sessions and four family meetings which occurred once every 2 to 3 months for a year. Outcome measures after 12 months were the incidence of a clinical depressive or anxiety disorder and change in depressive and anxiety symptoms (primary outcomes), caregiver burden and quality of life (secondary outcomes). Intention-to-treat as well as per protocol analyses were performed. Results A substantial number of caregivers (72/192) developed a depressive or anxiety disorder within 12 months. The intervention was not superior to usual care either in reducing the risk of disorder onset (adjusted IRR 0.98; 95% CI 0.69 to 1.38) or in reducing depressive (randomization-by-time interaction coefficient = −1.40; 95% CI −3.91 to 1.10) or anxiety symptoms (randomization-by-time interaction coefficient = −0.55; 95% CI −1.59 to 0.49). The intervention did not reduce caregiver burden or their health related quality of life. Conclusion This study did not demonstrate preventive effects of family meetings on the mental health of family caregivers. Further research should determine whether this intervention might be more beneficial if provided in a more concentrated dose, when applied for therapeutic purposes or targeted towards subgroups of caregivers. Trial Registration Controlled-Trials.com ISRCTN90163486

Nursing home structure and association with agitation and use of psychotropic drugs in nursing home residents in three countries: Norway, Austria and England.

Understanding the underlying mechanisms and risk factors leading to agitation is crucial to reduce the severity of agitation and increase quality of life. International comparative studies offer special advantages in elucidating environmental risk factors by providing a wider diversity of environmental exposures such as nursing home structures, health care systems and genetic diversity.

Early Parental Attitudes, Divorce and Separation, and Young Adult Outcome: Findings of a Longitudinal Study

Effects of early parental attitudes, divorce and separation on adult adaptation are reported in 132 young adults followed anterospectively and longitudinally from early infancy (the New York Longitudinal Study). Ratings of child adjustment at home at age 3 and 5 and at school at age 5 derived from repeated interviews. A separate parent interview at age 3 provided 8 clusters of parental attitudes and environmental features. Early adult adaptation ratings were derived from direct subject interviews. Parent conflict, especially regarding child management but including other issues, predicted poor adult adaptation, but separation-divorce without this conflict did not.