Using the Heartfelt Device to Monitor Leg Swelling in Adults with Heart Failure To Improve Quality of Life and Reduce Hospital Visits

What this Trial Is About

Researchers are evaluating the Heartfelt device, a new passive monitoring system that detects early signs of fluid build-up in patients with heart failure by measuring changes in foot and lower leg volume using 3D images. The study aims to see if adding this device to standard NHS care improves quality of life and reduces heart failure-related events compared to standard care alone. The trial involves 300 participants from multiple NHS hospitals and GP practices across the UK and uses a randomized crossover design. Participants will be randomly assigned to receive either standard NHS care, which includes regular weight checks and symptom monitoring, or standard care plus the Heartfelt device installed at home. The device captures daily images of the feet to track swelling without extra effort from the user. Alerts triggered by important changes are sent to the clinical team for prompt action. Both groups receive a patient booklet from the British Heart Foundation to support self-monitoring and understanding of heart failure. During the study, participants quality of life will be assessed using questionnaires at baseline and at 3, 6, 9, and 12 months. The study will also monitor hospitalizations, deaths, medication adherence, and the availability of daily device data. Researchers will evaluate how the clinical teams respond to alerts, the ease of device use, and its cost-effectiveness. The total participation period covers 12 months of monitoring and data collection.

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