Examining Interventions Designed to Support Shared Decision Making and Subsequent Patient Outcomes in Palliative Care: A Systematic Review of the Literature

Abstract

Background: Shared decision making (SDM) is a key attribute of patient-centered care, which empowers palliative care patients to be able to make optimal medical decisions about end-of-life treatments based on their own values and preferences. Aim: The aim of this systematic literature review is to detail and compare interventions supporting SDM over the last 10 years (January 2008 to December 2017) and to analyze patient/caregiver outcomes at the end of life. Methods: This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed, CINAHL, Embase, and Cochrane Library were searched with key search terms: SDM, decision aid, decision support, palliative care, and hospice care. The Mixed Methods Appraisal Tool was used to assess the quality of the included studies. Results: The initial search yielded 2705 articles, and 12 studies were included in the final review. The quality of the studies was modest and technology-enabled delivery modes (e.g., video, DVD, web-based tool) were most commonly used. Patient/caregiver knowledge of end-of-life care was the most common primary outcome across studies. The strength of the association between the SDM interventions and patient/caregiver outcomes varied. Conclusion: The findings from the studies that examined the effects of the SDM intervention on patient outcomes were inconsistent, highlighting the need for further SDM intervention studies among diverse patient populations using consistent measures. Given the availability of health technologies, future studies should focus on developing individual-tailored, technology-enabled interventions to support patient-centered medical decision making.