Exercise-Based Real-time Telerehabilitation for Older Adult Patients Recently Discharged After Transcatheter Aortic Valve Implantation: Mixed Methods Feasibility Study

Background: The use of telehealth technology to improve functional recovery following transcatheter aortic valve implantation (TAVI) has not been investigated. Objective: In this study, we aimed to examine the feasibility of exercise-based cardiac telerehabilitation after TAVI. Methods: This was a single -center, prospective, nonrandomized study using a mixed methods approach. Data collection included testing, researchers' observations, logbooks, and individual patient interviews, which were analyzed using a content analysis approach. The intervention lasted 3 weeks and consisted of home -based web-based exercise training, an activity tracker, a TAVI information website, and 1 web-based session with a nurse. Results: Of the initially included 13 patients, 5 (40%) completed the study and were interviewed; the median age was 82 (range 74-84) years, and the sample comprised 3 men and 2 women. Easy access to supervised exercise training at home with real -time feedback and use of the activity tracker to count daily steps were emphasized by the patients who completed the intervention. Reasons for patients not completing the program included poor data coverage, participants' limited information technology skills, and a lack of functionality in the systems used. No adverse events were reported. Conclusions: Exercise-based telerehabilitation for older people after TAVI, in the population as included in this study, and delivered as a web-based intervention, does not seem feasible, as 60% (8/13) of patients did not complete the study. Those completing the intervention highly appreciated the real -time feedback during the web-based training sessions. Future studies should address aspects that support retention rates and enhance patients' information technology skills.