TeleClinical Care: A randomised controlled trial of a smartphone-based model of care to support cardiac patients transitioning from hospital to the community (Preprint)

BACKGROUND This is the first randomised controlled trial (RCT) of a mobile health intervention that combines telemonitoring and educational components for both acute coronary syndrome (ACS) and heart failure (HF) inpatients to prevent readmission. OBJECTIVE Objective: To evaluate the feasibility, efficacy and cost-effectiveness of a smartphone app-based model of care (TeleClinical Care – TCC) plus usual care in patients being discharged from hospital after an ACS or HF admission, in comparison to usual care alone. METHODS Methods: In this pilot, 2-centre RCT, a smartphone app-based model of care (TeleClinical Care – TCC) was applied at discharge. The primary endpoint was the incidence of unplanned 30-day readmissions. Secondary endpoints included all-cause readmissions, cardiac readmissions, cardiac rehabilitation completion, medication adherence, cost-effectiveness and user satisfaction. Intervention arm participants received the app and Bluetooth-enabled devices for measuring weight, blood pressure and physical activity daily, plus usual care. The devices automatically transmitted recordings to the patient’s smartphone and then subsequently to a central server. Abnormal readings were flagged by email to a monitoring team. Control participants received usual care. RESULTS Results: 164 hospital inpatients were randomised at the time of discharge (TCC n=81, control n = 83, mean age 61.5 years, 79% male, 78% admitted with ACS). There were 11 unplanned 30-day readmissions in both groups (P = .97). Over a mean follow-up of 193 days, the intervention was associated with a significant reduction in unplanned hospital readmissions (21 vs. 41 readmissions, P = 0.015), including cardiac readmissions (11 vs. 25, P = .025), and higher rates of cardiac rehabilitation completion (39% vs. 18%, P = .025) and medication adherence (75% vs. 50%, P = .002). The average usability rating of the app was 4.5/5. The intervention cost AUD $6,028 per cardiac readmission saved. When modelled in a mainstream clinical setting, however, enrolment of 237 patients was projected to have the same healthcare expenditure compared to usual care, and enrolment of 500 patients was projected to save approximately AUD $100,000. CONCLUSIONS Conclusion: TCC was feasible and safe for ACS and HF inpatients. The incidence of 30-day readmissions was similar, however long-term benefits were demonstrated including fewer total readmissions over 6 months, improved medication adherence and improved cardiac rehabilitation completion. CLINICALTRIAL The study was registered with the Australia New Zealand Clinical Trials Registry (ACTRN12618001547235).