Avatar and virtual agent-assisted telecare for patients in their homes: A scoping review

Telecare can be an effective way to deliver healthcare to patients' homes. Avatar or virtual agent-equipped technologies have the potential to increase user engagement and adherence to telecare. This study aimed to identify telecare interventions assisted by avatars/virtual agents, reflect the concepts of telecare and give an overview on its outcomes.

A scoping review guided by the PRISMA-ScR checklist was conducted. MEDLINE, CINAHL, PsycINFO and grey literature were searched through 12 July 2022. Studies were included if patients were remotely cared for by healthcare professionals and received telecare interventions assisted by avatars/virtual agents in their homes. Studies underwent quality appraisal, and were synthesized along the dimensions 'study characteristics', 'intervention' and 'outcomes'.

Out of 535 records screened, 14 studies were included, reporting the effects of avatar/virtual agent-assisted telecare interventions, tailored to specific patient groups. Telecare interventions mainly focused on teletherapy and telemonitoring. Telecare services were rehabilitative, preventive, palliative, promotive and curative. Modes of communication were asynchronous, synchronous or a mix of both. Tasks of the implemented avatars/virtual agents comprised delivering health interventions, monitoring, assessment, guidance and strengthening agency. Telecare interventions led to improved clinical outcomes and higher adherence. Most studies reported sufficient system usability and high satisfaction among participants.

Telecare interventions were overall target group related and integrated in a service model. This combined with the use of avatars and virtual agents leads to improved adherence to telecare in the home setting. Further studies could account for relatives' experiences with telecare.