As part of an Unmet Need call through the AHSN, Dr Jonathan Murray, Consultant Nephrologist at South Tees Hospitals, has undertaken a service evaluation in collaboration with the company GraftWorx, using a monitoring patch for patients undergoing dialysis. The non-invasive wearable device, which has been developed by GraftWorx, is able to monitor and collect data on patient blood flow, fluid status and electrolytes.