Putting the Patient First: Self-Care App For Heart Failure

Abstract

Heart failure (HF) affects many older Canadians with recurrent hospitalizations despite post-discharge strategies to prevent readmission. Self-care is key to the management of HF in the home setting and can potentially lead to better clinical outcomes. Proper HF self-care includes tasks such as daily weight and symptom monitoring, as well as adjusting diuretics based on weight. Patients find HF self-care challenging, with less than 50% of patients regularly weighing themselves. Mobile applications to support self-care have been shown to be effective, however, due to their lack of consideration for barriers such as literacy, numeracy and cognitive impairment within their design, these applications are not usable for many older patients. Previous work supports the use of a paper-based standardized diuretic decision support tool (SDDST) to promote self-care in older individuals with HF. The objective of this study was to use participant (HF patients, informal care-providers) input to convert the paper-based SDDST into a user-centered electronic mobile application. We recruited 12 patients (male and female, age > 60 years) with a confirmed diagnosis of HF, and 7 informal caregivers from the Heart Function Clinic at the Hamilton Health Sciences General site. HF patients were categorized into three groups, 1) adequate self-care patients (6), 2) inadequate self-care patients without a CP (2) or 3) inadequate self-care patients with a CP (4), based on their self-care abilities measured with the Self-Care Heart Failure Index (SCHFI) where a score of > 70 is considered self-care adequate. We conducted semi-structured interviews with HF patients and CPs using Persona-Scenarios. Interviews were analyzed using NVivo, version 10, for emerging themes regarding self-care. Following data analysis, we identified 6 major themes, 1) Usability of technology, 2) Communication, 3) Application customization, 4) Complexity of Self-Care, 5) Usefulness of HF Related Information and 6) Long-Term Use and Cost. Many of the challenges patients and CPs mentioned involved their unfamiliarity with technology. However, by addressing these themes, we were able to develop a series of requirements and modifications to improve the usability of our app design.