Non-pharmacological approaches to procedural anxiety reduction for patients undergoing radiotherapy for cancer: systematic review protocol

INTRODUCTION: Procedural anxiety relates to an affective state of anxiety or fear in relation to a medical procedure. Various treatment-related factors may elicit anxiety among oncology patients, including fear of diagnostic imaging (such as MRI scans) and impending treatment and medical procedures (such as chemotherapy and radiotherapy). It is common in oncology settings to manage acute anxiety relating to medical procedures with anxiolytic medication. However, pharmacological approaches are not suitable for many patients. Despite this, non-pharmacological interventions are infrequently used. The aim of this systematic review is to determine whether non-pharmacological interventions delivered prior to, or during, radiotherapy are effective in reducing procedural anxiety. METHODS AND ANALYSIS: Data sources will include the bibliographic databases CINAHL, MEDLINE, EMBASE, PsycINFO and Cochrane Central Register of Controlled trials (CENTRAL) (from inception onward). Eligible studies will include adult patients with cancer undergoing radiotherapy treatment. Included studies will be those which employ a non-pharmacological intervention, delivered within existing radiotherapy appointments, with the aim of reducing procedural anxiety related to radiotherapy. All research designs with a control or other comparison group will be included. The primary outcome will be change in levels of self-reported procedural anxiety. Secondary outcomes will be changes in scores on physiological measures of anxiety and/or changes in treatment completion and/or changes in treatment duration and/or changes in psychological distress. Two investigators will independently complete title and abstract screening, full-text screening, data extraction and assessment of methodological quality. If appropriate, a meta-analyses will be performed. Any important amendments to this protocol will be updated in the PROSPERO registration and documented in the resulting review publication. ETHICS AND DISSEMINATION: No ethical issues are anticipated from this review. The findings will be disseminated through peer-reviewed publication and at conferences by presentation. SYSTEMATIC REVIEW REGISTRATION: CRD42019112941.