Mapping implementation strategies of evidence-based interventions for three preselected phenomena in people with dementia-a scoping review.

Background: Caring for people with dementia is complex, and there are various evidence-based interventions. However, a gap exists between the available interventions and how to implement them. The objectives of our review are to identify implementation strategies, implementation outcomes, and influencing factors for the implementation of evidence-based interventions that focus on three preselected phenomena in people with dementia: (A) behavior that challenges supporting a person with dementia in long-term care, (B) delirium in acute care, and (C) postacute care needs.

Methods: We conducted a scoping review according to the description of the Joanna Briggs Institute. We searched MEDLINE, CINAHL, and PsycINFO. For the data analysis, we conducted deductive content analysis. For this analysis, we used the Expert Recommendations for Implementation Change (ERIC), implementation outcomes according to Proctor and colleagues, and the Consolidated Framework for Implementation Research (CFIR).

Results: We identified 362 (A), 544 (B), and 714 records (C) on the three phenomena and included 7 (A), 3 (B), and 3 (C) studies. Among the studies, nine reported on the implementation strategies they used. Clusters with the most reported strategies were adapt and tailor to context and train and educate stakeholders. We identified one study that tested the effectiveness of the applied implementation strategy, while ten studies reported implementation outcomes (mostly fidelity). Regarding factors that influence implementation, all identified studies reported between 1 and 19 factors. The most reported factors were available resources and the adaptability of the intervention. To address dementia-specific influencing factors, we enhanced the CFIR construct of patient needs and resources to include family needs and resources.

Conclusions: We found a high degree of homogeneity across the different dementia phenomena, the evidence-based interventions, and the care settings in terms of the implementation strategies used, implementation outcomes measured, and influencing factors identified. However, it remains unclear to what extent implementation strategies themselves are evidence-based and which intervention strategy can be used by practitioners when either the implementation outcomes are not adjusted to the implementation strategy and/or the effects of implementation strategies are mostly unknown. Future research needs to focus on investigating the effectiveness of implementation strategies for evidence-based interventions for dementia care.

Trial Registration: The review protocol was prospectively published (Manietta et al., BMJ Open 11:e051611, 2021).