Journal of Medical Internet Research - International Scientific Journal for Medical Research, Information and Communication on the Internet #Preprint #PeerReviewMe: Warning: This is a unreviewed preprint. Readers are warned that the document has not been peer-reviewed by expert/patient reviewers or an academic editor, may contain misleading claims, and is likely to undergo changes before final publication, if accepted, or may have been rejected/withdrawn. Readers with interest and expertise are encouraged to sign up as peer-reviewer, if the paper is within an open peer-review period. Please cite this preprint only for review purposes or for grant applications and CVs (if you are the author). Background: Heart failure (HF) accounts for 20% of all hospital discharges in older adults and with the aging tsunami, it is expected to increase significantly. HF is associated with high rates of hospitalizations, morbidity, mortality, and costs. Remote patient monitoring (mHealth) shows promise in improving self-care and HF management, thus increasing quality of care while reducing hospitalizations and costs; yet, limited information exists regarding perceptions of older adults with HF about mHealth use. Objective: We compared perspectives of older adults with HF who were randomized to either: 1) mHealth equipment connected to a 24-hour call center, 2) digital home equipment, or 3) standard care, with regard to ease and satisfaction with equipment, provider communication and engagement, and ability to self-monitor and manage their disease. Methods: We performed a pilot study using a mixed methods descriptive design with pre/post surveys, following participants for 12 weeks. We augmented this data with semi-structured qualitative interviews to learn more about feasibility, satisfaction, communication and self-management. Results: We enrolled 28 patients with HF >55 years; with 57% male, 79% non-Hispanic White, with multiple comorbid conditions. At baseline, 50% rated their health fair or poor and 36% and 25% were very often/always frustrated and discouraged by their health. At baseline 46% did not monitor their weight, 29% did not monitor their blood pressure and 68% did not monitor for symptoms. Post-intervention, 100% of the equipment groups monitored daily. For technology anxiety, 36% indicated technology made them nervous and 32% reported fear of technology, without significant changes post-intervention. Technology usability post-intervention scored high (91/100) reflecting ease of use. A majority indicated that a healthcare provider should be managing their health and 71% reported that one should trust and not question the provider. Fifty-seven percent believed it was better to seek professional help than caring for oneself. Post-intervention, mHealth users relied more on themselves, not mirrored in the home equipment or standard care groups. Participants were satisfied with communication and engagement with providers, yet many described access problems. Distressing symptoms were unpredictable and prevailed over the 12 weeks with 79 provider visits and 7 visits to emergency departments. The mHealth call center received 872 readings and we completed 289 telephone calls with participants. Narrative data revealed main themes: 1) Traditional communication and engagement with providers prevailed, delaying access to care; 2) Home monitoring with technology was described as useful and mHealth users felt secure knowing that someone was observing them; 3) equipment groups felt more confident in self-monitoring and managing with an increased knowledge and confidence; and lastly, 4) uncertainty and frustration with persistent health problems. Conclusions: mHealth equipment is feasible with potential to improve patient-centered outcomes and increase self-management in older adults with HF.