Assessment of urine colour using a wallet card: a randomised study of a novel patient self-care tool during chemoradiation for oesophageal cancer

Background Patients undergoing neoadjuvant chemoradiation for oesophageal cancer often experience dehydration from decreased fluid intake and increased losses. Despite frequent clinical visits during treatment, patients can still present with dehydration, suggesting the need for increased patient awareness and engagement around adverse event management at home. Evidence for benefits of self-monitoring may help motivate patients to engage proactively in their own care to improve their treatment experience.Methods We performed a randomised single-centre study of a urine colour self-monitoring card (UCC) during chemoradiation therapy for oesophageal cancer, compared with standard dietitian counselling. Primary outcome was self-efficacy as determined by the Self-Management Resource Centre Self-Efficacy for Managing Chronic Disease Scale (SMCD). Secondary outcomes included Burge thirst scores, Edmonton Symptom Assessment System scores (ESAS), patient-initiated hydrations, creatinine rise and satisfaction with the UCC.Results Thirty-five patients were randomised. UCC use was not associated with improved SMCD or ESAS scores compared with standard counselling. The card was highly rated by patients as a welcome tool for self-monitoring.Conclusions No beneficial effect on self-efficacy or dehydration markers with UCC use was demonstrated. The study nonetheless drew attention to several factors potentially hindering its use for effective self-care: the unexpected severity of other symptoms consuming patients’ attention, reduced sensitivity of urine colour due to chemotherapy, absence of active inquiry by the healthcare team and the inconvenient location of the UCC in wallet/purse. Urine colour monitoring in patients with oesophageal cancer to improve the patient experience during treatment warrants further study but supported by active healthcare provider inquiry, more accessible format of the card, and possibly home vital checks to increase its sensitivity in the clinical context.