Cognitive stimulation therapy (CST) is an evidence-based, cost-effective psychosocial intervention for people with dementia but is currently not a standard part of post-diagnostic care. This qualitative study explored the views and experiences of dementia care providers on the barriers and facilitators to its implementation in usual care.

Thirty four semi-structured interviews (24 participants) were conducted across four dementia care sites in the North of England; ten were follow-up interviews. Data were analyzed using thematic analysis and then mapped to the Normalization Process Theory framework.

Participants considered CST a “good fit” with their “preferred” ways of working and goals of dementia care namely the provision of person-centered services. For facilitators delivering the intervention, compared to other behavioral interventions, CST was seen to offer benefits to their work and was easy to understand as an intervention. Training in CST and seeing benefits for clients were important motivators. Time and resources were crucial for the successful implementation of CST. Participants were keen to objectively measure benefits to participants but unsure how to do this.

CST is a cost-effective psychosocial intervention for people with dementia, recommended by national guidance. Despite our findings which show that, using the NPT framework, there are more facilitators than barriers to the implementation of CST, it is still not a standard part of post-diagnostic dementia care. Further research is needed to explore the reasons for this implementation gap in ensuring evidence-based care in translated into practice.

Cognitive stimulation therapy (CST) is a psychosocial group-based intervention for dementia shown to improve cognition and quality of life with a similar efficacy to cholinesterase inhibitors. Since CST can be delivered by non-specialist healthcare workers, it has potential for use in low-resource environments, such as sub-Saharan Africa (SSA). We aimed to assess the feasibility and clinical effectiveness of CST in rural Tanzania using a stepped-wedge design.

Participants and their carers were recruited through a community dementia screening program. Inclusion criteria were DSM-IV diagnosis of dementia of mild/moderate severity following detailed assessment. No participant had a previous diagnosis of dementia and none were taking a cholinesterase inhibitor. Primary outcomes related to the feasibility of conducting CST in this setting. Key clinical outcomes were changes in quality of life and cognition. The assessing team was blind to treatment group membership.

Thirty four participants with mild/moderate dementia were allocated to four CST groups. Attendance rates were high (85%) and we were able to complete all 14 sessions for each group within the seven week timeframe. Substantial improvements in cognition, anxiety, and behavioral symptoms were noted following CST, with smaller improvements in quality of life measures. The number needed to treat was two for a four-point cognitive (adapted Alzheimer's Disease Assessment Scale-Cognitive) improvement.

This intervention has the potential to be low-cost, sustainable, and adaptable to other settings across SSA, particularly if it can be delivered by non-specialist health workers.