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Nonpharmacologic Interventions for Inappropriate Behaviors in Dementia: A Review, Summary, and Critique

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Inappropriate behaviors are very common in dementia and impose an enormous toll both emotionally and financially. Three main psychosocial theoretical models have generally been utilized to explain inappropriate behaviors in dementia: the “unmet needs” model, a behavioral/learning model, and an environmental vulnerability/reduced stress-threshold model. A literature search yielded 83 nonpharmacological intervention studies, which utilized the following categories of interventions: sensory, social contact (real or simulated), behavior therapy, staff training, structured activities, environmental interventions, medical/nursing care interventions, and combination therapies. The majority are reported to have a positive, albeit not always significant, impact. Better matching of the available interventions to patients' needs and capabilities may result in greater benefits to patients and their caregivers.

Section snippets

The Underlying Assumptions and the Importance of Nonpharmacologic Interventions

In order to understand the rationale for the different nonpharmacologic interventions utilized in the research literature, it is important to understand the theoretical framework they embrace in conceptualizing inappropriate behaviors in dementia. Three theoretical models have generally been applied: 1) the “unmet needs” model; 2) a behavioral/learning model; and 3) an environmental vulnerability/reduced stress-threshold model.

Advantages of Nonpharmacologic Interventions

The reasons for using a nonpharmacologic interventions approach to treating inappropriate behaviors in dementia include the following: 1) it aims at addressing the psychosocial/environmental underlying reason for the behavior, as documented in previous research; 2) it avoids the limitations of pharmacological interventions, namely, adverse side effects, drug–drug interactions, and limited efficacy;5, 6 and 3) when medication is efficacious, it may mask the actual need by eliminating the

Methods

Literature searches were conducted on PsycLIT, MEDLINE, and a nursing subset of MEDLINE. Articles were chosen that fulfilled the following criteria: 1) published as an article in a scientific book or journal (i.e., excluding presentations, abstracts, and reports); 2) participants were at least 60 years old and suffered from dementia or cognitive impairment; and 3) a measure of the behavior or of change was obtained.

The articles were organized by type of intervention. The categorization is based

The Nature of the Interventions: The Interconnections Between Domains of Functioning

Nonpharmacologic interventions address a wide range of underlying problems: hearing problems, sleep difficulties (light therapy), communication problems, inactivity, and loneliness. These difficulties in life experience are closely interlinked among themselves. The approach to reducing inappropriate behavior in dementia is therefore identical to addressing those difficulties and improving quality of life for this population. As such, these interventions may provide an initial guide to a needed

RECOMMENDATIONS: FUTURE DIRECTIONS

The results of the literature review show that many nonpharmacologic interventions show promise for treating inappropriate behaviors in dementia. The field needs to be expanded in a number of ways in order to have clinical usefulness. There is a need to address 1) the issue of individualization and proper selection of treatment: Which interventions are appropriate for which persons manifesting which behaviors? When is the goal enhanced stimulation and social contact, and when is it relaxation?

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