Sustaining acute speech-language therapists' implementation of recommended aphasia practices: A mixed methods follow-up evaluation of a cluster RCT.

What is already known on the subject In post-stroke aphasia management, there are few examples of long-term sustainability of implementation outcomes. It is therefore unknown what factors are potentially important to sustain implementation of best-practice recommendations in aphasia services. What this paper adds to existing knowledge There is potential for implementation outcomes to be sustained long term, but sustainment is impacted by a range of factors. Ongoing facilitation or follow-up after initial implementation may to useful to promote sustainment, but is not essential if processes are sufficiently embedded. Gradual implementation into practice may lead to better sustainment than rapid change that is quickly forgotten. What are the potential or actual clinical implications of this work? Future implementation efforts should incorporate sustainability measures from the onset. Applying a sustainability framework was useful to guide evaluations and explore factors influencing the sustainment outcomes and is recommended for those interested in sustainability. Results from our evaluation can be used to guide refinement and support future development of sustainable implementation interventions.