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The scoping review reported by this article aimed to analyze the state of the art of the use of Fast Health Interoperability Resources (FHIR) in the development of homecare applications and was informed by the following research questions: (i) what type of homecare applications benefit from the use of FHIR?; (ii) what FHIR resources are being implemented?; (iii) what publicly available development tools are being used?; and (iv) how privacy and security issues are being addressed? An electronic search was conducted, and 27 studies were included in the scoping review after the selection process. The results show a current interest in using FHIR to implement: i) applications to provide interoperable measurement devices for home monitoring; (ii) applications to remotely collected Patient Reported Outcome Measures (PROM); (iii) Personal Health Records (PHR); and (iv) specific applications for self-management. According to the results, the FHIR resources being implemented are quite diverse and contribute for the challenge of handling the variability caused by diverse healthcare processes. However, the use of publicly available development tools (e.g., SMART on FHIR or HAPI) is not yet generalized. Moreover, just a small number of studies reported the validation of the implemented resources using publicly available FHIR validators. Finally, in terms of privacy and security issues, different approaches were identified: authentication and authorizations mechanisms, end-to-end encrypted messaging mechanisms, and decentralized management and audit trail based on blockchain technologies.
Pavão et al. (Sun,) studied this question.